The study of rock layers and their formation
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Send us a textToday on the BioAudio podcast, it's all about dating! (no not that kind). Have you ever wondered how we figure out when things happened way in the past? When a scientist says "it's 100 million years old..." just how did they figure it out?Today I'm talking to Dr. Matthew Jones. He's a paleontologist at Arizona State University and his specialty is fossil mammals (though he admits he was a dinosaur kid). It's often his job to figure out just how old is this rock and he's going to tell us about the science of dating ancient things. Stratigraphy, radioactive clocks, iridium rain and a commit that slammed into the earth. Who knew dating was so risky.
In this episode, Eric Hsu and Louis Everuss have a discussion about the idea of the Anthropocene, a concept that was originally developed within the field of Geology. Despite it not being formally recognised as a defined geological period in 2024 by the International Commission on Stratigraphy, the Anthropocene continues to feature in various discussions across different fields and sectors of society. But how might sociologists contribute to some of these conversations? Eva Lövbrand et al.'s article in Global Environmental Change put forward some compelling proposals, which Eric and Louis seek to make sense of. Notable in this episode is Eric's retelling of a time he ordered a very small side salad when he was out with friends during high school. Music and sound effects for this episode come from various sources and is licensed under the Creative Commons 0 License, the Creative Commons Attribution License 3.0, EFF Open Audio License, or is covered by a SFX (Multi-Use) License or a Commercial License from Epidemic Sound (www.epidemicsound.com). Tracks include:https://freesound.org/people/Tuben/sounds/272044/ https://www.epidemicsound.com/sound-effects/tracks/e1b22011-03a7-45b5-be21-7930691156d9/https://www.epidemicsound.com/sound-effects/tracks/f08d5262-f8b9-4ca1-8d9a-790e04372f73/https://www.epidemicsound.com/sound-effects/tracks/f45b4ad6-19af-43db-891c-88caa1182189/https://www.epidemicsound.com/sound-effects/tracks/e7f2c7bc-824d-428b-aedc-11ad6691d3e4/https://www.epidemicsound.com/sound-effects/tracks/a5e152a8-7983-4637-b54f-5cd7dd7e9da6/https://www.epidemicsound.com/track/4pM4ldz5RD/ https://freesound.org/people/JPMusic82/sounds/415511/The opinions expressed in the Sociology of Everything podcast are that of the hosts and/or guest speakers. They do not necessarily reflect the opinions of anyone else at UniSA or the institution at large.The Sociology of Everything podcast | www.sociologypodcast.com
It's time for the last in our series on dating methods for Tea-break Time Travel Training, and this time Matilda discusses the most common for of relative dating - stratigraphy. But what exactly is stratigraphy? Why are there so many rules and principles to something that seems extremely self-explanatory? And what does any of this have to do with dusty shelves? Listen it to find out!Transcripts For a transcript of this episode go to https://www.archpodnet.com/teabreak/33Links Science Direct stratigraphy topic search list Practices of Archaeological Stratigraphy Article on the history of Stratigraphy Principles of Geology ebook Harris Matrix activity sheetContact the Host Email: matilda@thearchaeologiststeacup.com https://www.thearchaeologiststeacup.com insta: @the_archaeologists_teacup fb: /TheArchaeologistsTeacup twitter: @ArchaeoTeacupArchPodNet APN Website: https://www.archpodnet.com APN on Facebook: https://www.facebook.com/archpodnet APN on Twitter: https://www.twitter.com/archpodnet APN on Instagram: https://www.instagram.com/archpodnet Tee Public Store: https://www.teepublic.com/stores/archaeology-podcast-network?ref_id=5724Affiliates Motion
It's time for the last in our series on dating methods for Tea-break Time Travel Training, and this time Matilda discusses the most common for of relative dating - stratigraphy. But what exactly is stratigraphy? Why are there so many rules and principles to something that seems extremely self-explanatory? And what does any of this have to do with dusty shelves? Listen it to find out!Transcripts For a transcript of this episode go to https://www.archpodnet.com/teabreak/33Links Science Direct stratigraphy topic search list Practices of Archaeological Stratigraphy Article on the history of Stratigraphy Principles of Geology ebook Harris Matrix activity sheetContact the Host Email: matilda@thearchaeologiststeacup.com https://www.thearchaeologiststeacup.com insta: @the_archaeologists_teacup fb: /TheArchaeologistsTeacup twitter: @ArchaeoTeacupArchPodNet APN Website: https://www.archpodnet.com APN on Facebook: https://www.facebook.com/archpodnet APN on Twitter: https://www.twitter.com/archpodnet APN on Instagram: https://www.instagram.com/archpodnet Tee Public Store: https://www.teepublic.com/stores/archaeology-podcast-network?ref_id=5724Affiliates Motion
Today, Matt Powell explains to us why he doesn't believe that making a big pile of little things is possible. He might not ever come up with any new arguments, but there's always a new level of idiocy to be found
About Patrick Kagan I have built, lead, and grown sales organizations for 30+ years, from fortune 500 companies, to mom and pop organizations. My teams and I have NEVER, NOT ACHIEVED OBJECTIVES in all my years, and that comes from mastering DIFFERENTIATION. My book, "SELL THE DIFFERENCE" is all about the unlimited power and potential of DIFFERENTIATION. Readers have expressed the power of CO-ELEVATING both the sales side of the table and the buying side of the table. The end result is no more lost income opportunities and lost customers. Ultimately, "SELL THE DIFFERENCE" will help to increase incomes, profits, and satisfaction. My podcast, "Sales Hindsights with Patrick Kagan" harnesses all that I have learned in the last 30 years, in terms of sales, leadership, motivation, compensation, self-esteem, and courage, and puts that harnessed knowledge into "Practical Inspiration"...Practical because the wisdom is accessible to all, and easy to remember. If it is easy to remember, it is easy to repeat. Inspiring because of what it unleashes in each person. https://pksolutionsgroup.com/ ------------------------------------------------------ About EVGENIY KHARAM Evgeniy has collaborated with small, medium, and large enterprises, developing a talent for simplifying complex technical information into everyday language and aligning it with business needs. His experience has allowed him to refine his soft skills, teach others, and he is currently writing a book on the importance of soft skills in the technical world. https://www.security-architecture.org/ https://www.linkedin.com/in/ekharam/ http://www.youtube.com/c/securityarchitecturepodcast ------------------------------------------------------ Collabpalooza Solopreneur Automation Summit https://collabpalooza.com When It Worked Podcast https://getoffthedamnphone.com/podcast 00:00:00 When It Worked Podcast With Patrick Kagan, Evgeniy Kharam 00:00:13 Jeopardy Categories Anatomy, Fashion, Golf, Literature, Science, World History 00:01:03 Six Lucky For Beginners, Clever Beginner 00:01:22 100 Points For Evgeniy, 200 For Science 00:02:08 New Categories Animals, Awards, English History, Geography, Landmarks, Science 00:02:26 Land Animal With Largest Teeth 00:03:21 Hounds Hunting Rabbits, Birds, Animals 00:05:48 Falcony, Portuguese Manowar, Victoria Cross, Landmarks, Pentagon 00:08:45 Defaced Monuments And Statues 00:09:34 Kagan Landmarks 800 Landmarks Unknown Soldier 00:11:48 Military Merit Clue Purple Heart 00:14:54 Patricks Points For Coverage Last Years Elections, Category Selection 00:15:39 Diffraction Pinks, Metal, Light Diffraction 00:16:13 Iron, Steel, North Americas Highest Peak 00:18:59 Geography 400 Danubeassong Song 00:20:43 English History, Geography, And Science 00:22:55 Stratigraphy, Maps, Geology, Stratosphere 00:24:23 Geography Benelux Economic Union 00:24:51 Netherlands, Luxembourg, Belgium, Claude Van Den Borne 00:25:37 Geography And Geography For 1000 00:26:10 I Think Me In My Mind 00:26:31 Evgeniy Purchases English History For 200 00:27:11 Kennys Political Party Conservatives, Labor Labor 00:27:42 Labor Party Correct, Amada Correct 00:28:47 Patrick Kagan Scotland And Wiles 00:29:05 British Navy Abolished Beating Punishment In 1881 00:29:45 Patrick House Of Tutor, Expert On English Royal 00:30:39 Evgeniy's Security Podcast 00:32:17 Asset Management And Policies For Cyber Security 00:33:23 Consulting Companies, Niche, And Networking With Afghani 00:34:42 Black Screen, Mysterious Guest, Differentiation 00:36:39 Differentiation, Pain Points For Customers
On this episode we welcome back Charlotte and talk bison basics. This is part 1 of 2 of our American Bison series. Give it a listen and share with your friends!Find us on all the things: http://linktr.ee/bearsandbrewspodcast Sources Cited:Coffey, Rebecca. “Bison versus Mammoths: New Culprit in the Disappearance of North America's Giants.” Scientific American, 1 Mar. 2011. Dekel, Yaron, et al. “Dispersal of an ancient retroposon in the TP53 promoter of Bovidae: Phylogeny, novel mechanisms, and potential implications for cow milk persistency.” BMC Genomics, vol. 16, no. 1, 2015, https://doi.org/10.1186/s12864-015-1235-8. Harington, C.R. “Mammoths, Bison and time in North America.” Developments in Palaeontology and Stratigraphy, 1984, pp. 299–309, https://doi.org/10.1016/s0920-5446(08)70078-5. Mintoo, Abdul Awal, et al. “Draft genome of the River Water Buffalo.” Ecology and Evolution, vol. 9, no. 6, 2019, pp. 3378–3388, https://doi.org/10.1002/ece3.4965. “Plains Bison (BISON BISON BISON.” U.S. Fish & Wildlife Service, www.fws.gov/species/plains-bison-bison-bison-bison. White, P.J, and Katrina L. Auttelet. Yellowstone Bison Conserving an American Icon in Modern Society. Yellowstone Association, 2015. “Wood Bison Restoration in Alaska.” Alaska Department of Fish and Game, 2023, www.adfg.alaska.gov/index.cfm?adfg=woodbisonrestoration.herdupdates#:~:text=With%20the%20addition%20of%2028,150%20in%20November%20of%202022. Hosted on Acast. See acast.com/privacy for more information.
As you walk through the white gypsum sands of White Sands National Park in southern New Mexico, your footprints will likely be quickly erased by shifting winds. So it's somewhat of a phenomenon of nature that the oldest footprints ever discovered in North America are not only found here — in perfect form, having withstood time and weather — but show that ancient humans lived here much earlier than previously believed. A research team from the U-S Geological Survey earlier this month strengthened their findings released in 2021 that dated these footprints to as much as 23,000 years old. That finding erased previous theories that humans first arrived in North America some 11,000 years ago, after the end of the last Ice Age. This week the Traveler's Lynn Riddick talks with key researchers from the U.S. Geological Survey team about their initial analysis of the footprints as well as their follow-up study that confirmed the age dating…and what it all means to our long-sought understanding of human colonization on this continent.
Olá, bio-ouvinte! No novo episódio do nosso podcast, vamos dar início à minissérie sobre Paleobiologia! Vamos começar viajando pelo tempo geológico com as mudanças que ocorreram no planeta e como se formaram os fósseis. CONTATOS cartinhas@biologiainsitu.com.br Instagram, Facebook e LinkedIn: @biologiainsitu Twitter e TikTok: @bioinsitu APOIO Apoie pela Orelo em "Fazer parte"! Pix: cartinhas@biologiainsitu.com.br CRÉDITOS Coordenação: Bruna Canellas, Cristianne Santos, Heloá Caramuru, Ricardo Gomes e Vitor Lopes. Pesquisa de pauta: Vanusa Gatteli e Viviane Turman. Revisão científica: Isabela Mayara e Nadja Lopes. Roteirização: Ana Victória. Revisão textual: Sueli Rodrigues. Locução: Renata Santos e Ricardo Gomes. Direção: Vitor Lopes. Edição e mixagem de áudio: Ricardo Gomes. Arte de capa: Larissa Castro. REFERÊNCIAS ALLISON, Peter A.; BOTTJER, David J. (ed.). Taphonomy: process and bias through time. Londres: Springer, 2011. 603 p. Disponível em: https://cloudflare-ipfs.com/ipfs/bafykbzacebhklfn4x73alfj4wd2ef7ctoe4idkqdpxn6ef6qzgksrb7bgi5la?filename=%28Aims%20%26%20Scope%20Topics%20in%20Geobiology%20Book%20Series%2032%29%20Peter%20A.%20Allison%2C%20David%20J.%20Bottjer%20%28auth.%29%2C%20Peter%20A.%20Allison%2C%20David%20J.%20Bottjer%20%28eds.%29%20-%20Taphonomy_%20Process%20and%20Bias%20Through%20Time-Springer%20Netherlands.pdf. Acesso em: 15 mar. 2023 ANELLI, L.E.; LEME, J.M.; OLIVEIRA, P.E.; FAIRCHILD, T,R. 2020. Paleontologia. Guia de aulas práticas, uma introdução ao estudo dos fósseis. Universidade de São Paulo, Instituto de Geociências. Disponível em: https://didatico.igc.usp.br/fosseis/processos-de-fossilizacao. Acesso em: 12 mar. 2023. A História do planeta contada pelas rochas. Disponível em: https://revistapesquisa.fapesp.br/a-historia-do-planeta-contada-pelas-rochas/. Acesso em: 3 mar. 2023. A primeira fratura. Disponível em: . Acesso em: 13 mar. 2023. Biostratigraphy | Palaeontology and life history. Disponível em: . Acesso em: 3 mar. 2023. BUCK, P. V. et al. A new tetrapod ichnotaxon from Botucatu Formation, Lower Cretaceous (Neocomian), Brazil, with comments on fossil track preservation on inclined planes and local paleoecology. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 466, p. 21–37, 15 jan. 2017. BUSS, L. W.; SEILACHER, A. The Phylum Vendobionta: a sister group of the Eumetazoa? Paleobiology, v. 20, n. 1, p. 1–4, ed 1994. Dinossauros - Materiais Didáticos. , 10 ago. 2020. Disponível em: . Acesso em: 10 mar. 2023 CASATI, Rafael. Tafonomia: o estudo de como se formam os fósseis. O estudo de como se formam os fósseis. 2023. Instituto de Geociências da Universidade de São Paulo. Disponível em: https://didatico.igc.usp.br/tafonomia-o-estudo-fosseis/. Acesso em: 11 mar. 2023. CASTRO, Ana Flávia. Chapada do Araripe: conheça a riqueza cultural e histórica do cariri. Metrópoles. Brasília, 30 abr. 2021. p. 1-9. Disponível em: https://www.metropoles.com/vida-e-estilo/turismo/chapada-do-araripe-conheca-a-riqueza-cultural-e-historica-do-cariri?amp. Acesso em: 11 mar. 2023. CUNHA, Lucca; FRANCISCHINI, Heitor. Museu de Paleontologia Irajá Damiani Pinto: fósseis. 2023. UFRGS. Disponível em: https://www.ufrgs.br/museupaleonto/?page_id=735. Acesso em: 15 mar. 2023. FÓSSIL. In: Dicionário Priberam da Língua Portuguesa, 2023. Disponível em https://dicionario.priberam.org/Fóssil. Acesso em 14 de março de 2023. GRADSTEIN, F. M. et al. Geologic Time Scale 2020. [s.l.] Elsevier, 2020. Há 200 milhões de anos, mudanças climáticas foram essenciais para dinossauros espalharem-se pelo planeta. Jornal da USP, 11 jan. 2023. Disponível em: . Acesso em: 10 mar. 2023 HOLZ, Michael; SIMÕES, Marcello G.. Elementos Fundamentais de Tafonomia. Porto Alegre: Ufrgs, 2002. 231 p. Disponível em: https://www.researchgate.net/profile/Marcello-Simoes/publication/309122335_Elementos_Fundamentais_de_Tafonomia/links/57ffd98c08aec3e477eac69d/Elementos-Fundamentais-de-Tafonomia.pdf. Acesso em: 11 mar. 2023. INSTITUTO VIRTUAL DE PALEONTOLOGIA DO ESTADO DO RIO DE JANEIRO (IVP-RJ) (Rio de Janeiro). Parque Paleontológico de São José de Itaboraí. 2023. Disponível em: http://www.ivprj.uerj.br/parquepaleontologicoitabora.html. Acesso em: 12 mar. 2023. International Commission on Stratigraphy. Disponível em: . Acesso em: 10 mar. 2023. Jornal da USP ano XXI n.751. Disponível em: . Acesso em: 10 mar. 2023. KELLER, Thiago. ‘Mundo Perdido': conheça 5 espécies de dinossauros encontradas no Brasil. 2022. Disponível em: https://ndmais.com.br/meio-ambiente/mundo-perdido-conheca-5-especies-de-dinossauros-encontradas-no-brasil/. Acesso em: 12 mar. 2023. KERBER, B. B. et al. O registro fossilífero de metazoários ediacaranos na América do Sul e suas implicações nos estudos sobre origem e complexificação da vida animal. Geologia USP. Série Científica, v. 13, n. 3, p. 51–64, 1 set. 2013. LEVIN, Harold L.. Time and Geology. In: LEVIN, Harold L.. The Earth Through Time. Philadelphia: W. B. Saunders Company, 1978. Cap. 5. p. 123-147. Disponível em: https://openlibrary.org/works/OL1801376W/The_earth_through_time?edition=key%3A/books/OL4564379M. Acesso em: 18 fev. 2023. MARSOLA, J. No labirinto dos arcossauros. Disponível em: . Acesso em: 13 mar. 2023. O lugar dos insetos na biodiversidade. Jornal da USP, 16 fev. 2023. Disponível em: . Acesso em: 12 mar. 2023 O'NEIL, J. et al. Neodymium-142 Evidence for Hadean Mafic Crust. Science, v. 321, n. 5897, p. 1828–1831, 26 set. 2008. Pedaço de um supercontinente. Disponível em: . Acesso em: 13 mar. 2023. PEDROSA, M. S. [UNESP. Mudanças ambientais e extinções durante o Eon Fanerozoico. Alma, p. 175 f., 13 dez. 2018. Pré-Cambriano - Materiais Didáticos. , 6 ago. 2020. Disponível em: . Acesso em: 2 mar. 2023. TAFONOMIA. In: Dicionário Priberam da Língua Portuguesa, 2023. Disponível em https://dicionario.priberam.org/tafonomia. Acesso em 14 de março de 2023. Tempo Geológico – Museu de Paleontologia Irajá Damiani Pinto. , [s.d.]. Disponível em: . Acesso em: 3 mar. 2023. Uma breve história da escrita. [s.d.]. Disponível em: . Acesso em: 3 mar. 2023. What Was the Biggest Dinosaur? What Was the Smallest? Disponível em: . Acesso em: 13 mar. 2023. WILLIAMS, F.M. (2016). Geological Time. In: Understanding Ethiopia. GeoGuide. Springer, Cham. https://doi.org/10.1007/978-3-319-02180-5_2 YORK, D.; FARQUHAR, R. M. Earth's Age and Geochronology. Oxford, New York: Pergamon Pr, 1972.
For human beings, Earth is a supremely human place. A world of concrete, steel, glass, plastic, cars, paved streets and highways, and lots of other human beings, generating mountains of waste. Here and there, pockets of nature for human beings.Dutch chemist Paul Crützen coined a term for Earth's human age — the Anthropocene. Crützen proposed that it be declared a new epoch in Earth history, terminating the one geologists say we've been in for the past 12,000 years, the Holocene.This summer, a scientific panel will shift Crützen's proposal up a notch.The Anthropocene Working Group (AWG) was set up in 2009 by a commission of the International Union of Geological Sciences. Its task — defining the Anthropocene, geologically.Crützen's idea was that the Anthropocene began with the 18th-century Industrial Revolution. In 2019, a decade of research under its belt, the AWG decided it actually began around 1950, at the start of what American environmental historian John McNeill dubbed the Great Acceleration, in the wake of World War II; a period marked by massive fossil-fuel burning, resource extraction, pollution, global trade and population growth, and the parallel rise of atmospheric carbon dioxide, surface temperature, biosphere degradation and so on.The AWG's next task was to identify one spot on Earth where the telltale signs of human activity are best observed in mid-20th-century sediments. The technical term for this is a mouthful — a Global Stratotype Section and Point. The more popular one: a “Golden Spike.”To be precise, that Golden Spike would be the thin sequence of layers in a core pulled from the bottom sediments of a lake, bay or estuary, or from a peat bog, ice sheet, coral reef or stalagmite, somewhere on Earth, containing the chemical and material signatures of human activity dating to the mid-20th century. Key among these — spheroidal carbonaceous particles (fly ash) from coal burning, microplastics, heavy metals, isotopes of carbon and nitrogen associated with fossil fuel burning, and radioactive Plutonium-239 from atmospheric nuclear weapons testing that peaked in the 1950s.After years of investigation, the AWG came up with a list of 12 candidate Golden Spikes — in Japan, China, Canada, the US, Denmark, Italy, Poland, Australia and the Antarctic. Each candidate site assembled a scientific team to study their cores in the minutest detail.Francine McCarthy, lead scientist for Crawford Lake, in southern Ontario, is proud of her sedimentary cores.“We do have the best site,” McCarthy said. “I have to accept some kind of maternal pride.”McCarthy has reason to be proud. Crawford Lake has been recording human activities for thousands of years. That's because it's very deep, and its bottom sediments are permanently isolated. Those sediments consist of many layers, laid down year after year, all precisely dated.They record the history of coal burning, the rise of atmospheric carbon dioxide and atmospheric nuclear weapons tests, all peaking around 1950.So do sediments from the Baltic Sea, Japan's Beppu Bay, Sihailongwan crater lake in China and the Śnieżka peat bog at the heart of Poland's polluted “Black Triangle.” San Francisco Bay estuary cores are rich in invasive species, mercury and SCPs. Coral samples from the Gulf of Mexico and Cairns, Australia, are also competitive.The competition is tense. To be chosen as the Anthropocene's Golden Spike, a candidate site must receive 60% of votes from the AWG's 23 voting members. Multiple rounds of voting have taken place over the past year.As the AWG prepares to announce its choice, prominent geologists disagree that the Holocene Epoch ended, and the Anthropocene began, a mere 70 years ago.“In geological terms, that's today. It's just yesterday morning,” said Phil Gibbard, a geologist at Cambridge University. ”We have no clue about, seen from thousands of years in the future, whether this would be more than a blip.”Only time will tell if the Anthropocene is a blip, said Simon Turner, AWG's secretary. Turner, standing in a hallway at University College London, around the corner from the geology department, reflects on the popularity of the Anthropocene idea in nonscientific circles.“The thing with the Anthropocene, people get it,” Turner said. “They get the idea of, like, human activity on the planet. The Holocene … I can probably pull someone over here now and say, 'have you heard of the Holocene?' And they will not have heard of it … and geology is just down the corner, so you would hope someone has.”The Anthropocene Working Group will announce its winning Golden Spike sometime this summer, or in the early fall, in Berlin. Its proposal will then pass up the geo-bureaucratic hierarchy — first to the Subcommission on Quaternary Stratigraphy, then the International Commission on Stratigraphy and finally, the International Union of Geological Sciences.However, approval of that Golden Spike — either as the base of a new epoch, the Anthropocene, or just the latest stage of the Holocene (in which case, it would be named after its Golden Spike; the Crawfordian, for instance) — could take years.
Today we are joined by Dr. Zo Kreager, whom is a trained geologist with a research focus on how geologists visually perceive diagrams and best practices for teaching university level geoscience courses. She has won the outstanding graduate teaching assistant award twice and is currently an Assistant Professor of Geology at SUNY Oneonta.She has published numerous articles like "Seeing Like a Geologist: How Expertise and Context Impact Frame-of-Reference Judgments" & her latest being featured in Geosphere from the Geological Society of Americca about how "Spatial skill predicts success on sequence stratigraphic interpretation." 1. https://www.geosociety.org/gsatoday/groundwork/G423GW/GSATG423GW.pdf2. https://pubs.geoscienceworld.org/gsa/geosphere/article/18/2/750/612178/Spatial-skill-predicts-success-on-sequenceIf you know any women in the STEM field or you yourself would like to be part of this project, please send an email to mindyourstem@gmail.com.Instagram: @mindyourstemFacebook: https://www.facebook.com/MindyourSTEM
This conversation with Ashton Embry is about sequence stratigraphy, with reference to Ashton Embry's research papers “Episodic Global Tectonics: Sequence Stratigraphy Meets Plate Tectonics” and “Two Approaches to Sequence Stratigraphy” with coauthor Erik Johannessen. Some highlights include discussing tectonic and sea level stratigraphic models. May this exchange serve to expand your knowledge on the go.For more information go to www.stoneconsulting.info- Embry, Ashton (2006). Sequence Stratigraphy Meets Plate Tectonics. GEO ExPro March 2006.- Embry, A., Johannessen, E. (2017). Two Approaches to Sequence Stratigraphy. Stratigraphy and Timescales, Volume 2. Elsevier Inc. 2017. ISSN 2468-5178. Author Contact: Ashton Embry - aembry@shaw.ca
There's a lot of debate about the idea that the global changes brought about by humans define a new geological epoch, dubbed the Anthropocene. Should such an epoch be added to the official geological time scale? If so, what aspect or aspects of anthropogenic change should be used, and exactly where do we place the golden spike that will define the base of the Anthropocene? Such questions come under the purview of the International Commission on Stratigraphy, whose current secretary general is our guest in this episode. Phil Gibbard is Emeritus Professor of Quaternary Palaeoenvironments at the University of Cambridge. In 2009, he was a founding member of the Anthropocene Working Group tasked by the International Commission on Stratigraphy to examine the status, hierarchical level, and definition of the Anthropocene as a potential new formal division of the Geological Time Scale. He explains that no consensus on the Anthropocene has been reached, and it remains controversial as to whether there is even a need for such an epoch at all. Go to geologybites.com for podcast illustrations. And if you're enjoying the series, I'd be grateful if you could rate the podcast and leave a review.
Today, Calvin Smith of Answers in Genesis Canada explains to us that dating methods exist...and then just kinda concludes from there that the earth is young without connecting the dots.Donate to Project Share: http://vicedrhino.com/donateSources: Is Water Wet?: https://bit.ly/3mlXDc5Kelvin, Perry and the Age of the Earth: https://bit.ly/3pQ7J7kHow Science Figured Out the Age of Earth: https://bit.ly/3scd6fhAge of meteorites and the earth: https://bit.ly/2We3TpmPlanets in our Solar System May Have Formed in Fits and Starts: https://bit.ly/3jQzetPSolar System Timeline: https://bit.ly/3nHC8lvIndex fossils: https://bit.ly/3CtVK2XPragmatism versus materialism in stratigraphy: https://bit.ly/3CrRgcVEvidence for Evolution - Dating Methods: https://bit.ly/3nF1SyXIntroduction to Physical Geology: http://bit.ly/2PAN4nlWhat is the carbon cycle?: https://bit.ly/3jOYWi8The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP): https://bit.ly/3pWGcBmArchaeology: The milk revolution: https://go.nature.com/3w52xgTPhysiological and Genetic Adaptations to Diving in Sea Nomads: https://bit.ly/3w87ZQqRoy R. Lemon. Principles of Stratigraphy. Merrill Publishing Company, 1990.Historical Geology/Volcanic ash: https://bit.ly/3jTEz3oIsochron Dating: http://bit.ly/2s962pUOriginal Video:https://bit.ly/3jMdGydCards:Imperial Measurements Explained:https://www.youtube.com/watch?v=GDUt-KbxqsgEvidence for Evolution - Dating Methods:https://www.youtube.com/watch?v=B196InuBV4IAll my various links can be found here:http://links.vicedrhino.com
This conversation with Meagan Gilbert, resident geologist at the Saskatchewan Geological Survey , is about the Belly River Formation in Saskatchewan. The discussion focuses around Meagan Gilbert, Luis Buatois, and Robin Renaut's scientific research paper titled “Stratigraphy and depositional environments of the Belly River Group (Campanian) in southwestern Saskatchewan, Canada”. Some highlights include discussion of the first formal recognition of facies, depositional environments, and stratigraphy of the Belly River in Saskatchewan.May this exchange serve to expand your geological knowledge on the go.For more information go to www.stoneconsulting.infoMeagan M. Gilbert, Luis A. Buatois, Robin W. Renaut; Stratigraphy and depositional environments of the Belly River Group (Campanian) in southwestern Saskatchewan, Canada. Bulletin of Canadian Petroleum Geology 2020;; 68 (2): 31–63. doi: https://doi.org/10.35767/gscpgbull.68.2.31
Smith: Breaking New Ground with Stratigraphy: Think spatially on the life and impact of William Smith, creator of the world's first modern geologic map. The post Smith: Breaking New Ground with Stratigraphy appeared first on Joseph Kerski, Ph.D. - Geographer.
It's our 150th episode! Wow! This week we're starting our Back To School series with a short primer on stratigraphy. How do archaeologists divide a site into time periods? How did people first figure out that layers of sediment accumulate over time through different processes? How many dirt/soil/sediment puns is Anna capable of making in roughly forty minutes? We'll find out. Links Stratigraphy: Earth's Geological, Archaeological Layers (ThoughtCo) Charles Lyell: Principles of Geology (WGBH) About Sir Charles Lyell (University of Edinburgh) Charles Lyell (Encyclopedia Britannica) The Blasphemous Geologist Who Rocked Our Understanding of Earth's Age (Smithsonian) Harris Matrix (Wikipedia) The Harris Matrix Tool for Comprehending the Archaeological Past (ThoughtCo) How to Read a Munsell Color Chart (Munsell Color) Atapuerca (Don's Maps) Chicken Bones May Be the Legacy of Our Time (Smithsonian) Contact Email the Dirt Podcast: thedirtpodcast@gmail.com ArchPodNet APN Website: https://www.archpodnet.com APN on Facebook: https://www.facebook.com/archpodnet APN on Twitter: https://www.twitter.com/archpodnet APN on Instagram: https://www.instagram.com/archpodnet Tee Public Store Affiliates Wildnote TeePublic Timeular
It's our 150th episode! Wow! This week we're starting our Back To School series with a short primer on stratigraphy. How do archaeologists divide a site into time periods? How did people first figure out that layers of sediment accumulate over time through different processes? How many dirt/soil/sediment puns is Anna capable of making in roughly forty minutes? We'll find out. Links Stratigraphy: Earth's Geological, Archaeological Layers (ThoughtCo) Charles Lyell: Principles of Geology (WGBH) About Sir Charles Lyell (University of Edinburgh) Charles Lyell (Encyclopedia Britannica) The Blasphemous Geologist Who Rocked Our Understanding of Earth's Age (Smithsonian) Harris Matrix (Wikipedia) The Harris Matrix Tool for Comprehending the Archaeological Past (ThoughtCo) How to Read a Munsell Color Chart (Munsell Color) Atapuerca (Don's Maps) Chicken Bones May Be the Legacy of Our Time (Smithsonian) Contact Email the Dirt Podcast: thedirtpodcast@gmail.com ArchPodNet APN Website: https://www.archpodnet.com APN on Facebook: https://www.facebook.com/archpodnet APN on Twitter: https://www.twitter.com/archpodnet APN on Instagram: https://www.instagram.com/archpodnet Tee Public Store Affiliates Wildnote TeePublic Timeular
Today, Answers in Genesis speaker Calvin Smith explains the evidence for the flood.Unsurprising to anyone, it only looks like evidence if you don't look closely.Sources:The Imperative Of Non-stationary Natural Law In Relation To Noah's Flood (CRSQ Volume 27, 1990)(PDF): https://go.aws/2BuqoyqEpimenides paradox: https://bit.ly/3j8WVwaCalcite, limestone and marble: https://bit.ly/3fnEYZIRoy R. Lemon, Principles of Stratigraphy (1990).Chalk one up for coccolithophores: https://bit.ly/3ihJMBCFossil: https://bit.ly/3CikdbV"Polystrate" Tree Fossils: http://bit.ly/2JptJlQStratigraphy and Structure of the Timna Valley and Adjacent Ancient Mining Areas: https://bit.ly/2WFuRJ8The Use of Cannabis for Headache Disorders: https://bit.ly/2TQEh3DCannabis-based medicines for chronic neuropathic pain in adults: https://bit.ly/3ih1Z2qEfficacy and adverse effects of medical marijuana for chronic noncancer pain: https://bit.ly/3A3QLEyMarijuana Beliefs Outstrip Evidence: https://bit.ly/3lx36NcOriginal Video: https://bit.ly/3AfkBGjCards:Why do Rivers Have Deltas?:https://www.youtube.com/watch?v=A47ythEcz74Advice to Churches from Viced Rhino...Sort of.:https://www.youtube.com/watch?v=9N15J-_k6A4
Welcome to Tinfoil Tuesday where Viced Rhino takes on the first guest creator duties, as he looks at a Creationist's take on the age of rocks!Sources:Chalk: A biological limestone formed from shell debris: https://bit.ly/3v2NbYJLemon, Roy - Principles of Stratigraphy (1990) pp 30-32Ibid, pp 88-89Sedimentary rock - Sedimentary structures: https://bit.ly/3tyOEFJSalina Group: https://bit.ly/32t4QfU"Polystrate" Tree Fossils: http://bit.ly/2JptJlQDawson, JW - Acadian Geology: The Geological Structure, Organic Remains, and Mineral Resources of Nova Scotia, New Brunswick, and Prince Edward Island: https://bit.ly/3txBGZ5Uniformitarianism: https://bit.ly/3n4J8IKHow Science Figured Out the Age of Earth: https://bit.ly/3scd6fhThe Nature of the Stratigraphic Record, third edition, review: https://bit.ly/3dDyplv
Rob is the project manager for the Blue Book project at iCRAG, an upcoming online repository of borehole information about the Carboniferous strata in Ireland, home to many Pb and Zn ore bodies. With Eoin from Geological Survey Ireland, they tell us why un update from the original Blue Book by Mike Philcox was needed, and what impact the new version will have on the mining industry sector in Ireland. Hosted and produced by Niamh Faulkner and Ben Couvin. Edited by Niamh Faulkner and Ben Couvin.
Today, AiG Canada explains how to forget their middle critical thinking checks in favour of the first one.Sources:Long-Term Coffee Consumption Is Associated with Decreased Incidence of New-Onset Hypertension: A Dose–Response Meta-Analysis: https://bit.ly/2XD8S2VEvidence for Evolution - Dating Methods: https://bit.ly/38BHx7yPrinciples of Sedimentology and Stratigraphy: https://bit.ly/3nHRqoiTwenty-one Reasons Noah’s Worldwide Flood Never Happened (PDF): https://bit.ly/3qiHZxy"Historical science" vs. "experimental science": https://bit.ly/3ntEAuxNomothetic and idiographic: https://bit.ly/35EMvP3"Polystrate" Tree Fossils: http://bit.ly/2JptJlQPennsylvanian ‘fossil forests' in growth position (T0 assemblages): origin, taphonomic bias and palaeoecological insights: https://bit.ly/39s5EVwIs decay constant?: http://bit.ly/2tpnRSbOriginal Video: https://bit.ly/3ianZKLCards:YoLup (0:14):https://www.youtube.com/channel/UCh0ngVn2K6SzQQJeUKl634QNoah Drank from a Fire Hose! (15:46):https://www.youtube.com/watch?v=N31AdIPyfWUEvidence for Evolution - Dating Methods (18:14):https://www.youtube.com/watch?v=B196InuBV4IPrints Rhino (25:39):https://www.youtube.com/channel/UCnfKKkPejoTzmOCpDroJIDQ
This conversation with Guy Plint is about the Cretaceous Dunvegan Stratigraphy. It is based on Guy Plint's scientific article titled “Nonmarine sequence stratigraphy: updip expression of sequence boundaries and systems tracts in a high-resolution framework, Cenomanian Dunvegan Formation, Alberta foreland basin, Canada."How important are Dunvegan allomembers? Which systems tracts are significant? What is a lemon drop? What's next in the Dunvegan?May this exchange serve to expand your geological knowledge on the go.For more information go to www.stoneconsulting.infoCitation: Plint, McCarthy, Faccini. (2001). Nonmarine sequence stratigraphy: Updip expression of sequence boundaries and systems tracts in a high-resolution framework, Cenomanian Dunvegan Formation, Alberta foreland basin, Canada. AAPG Bulletin, V. 85, No. 11 (November 2001), P. 1967-2001.
For links to every news story, all of the details we shared about Hypselosaurus, and our fun fact check out https://iknowdino.com/Hypselosaurus-Episode-310/Please let us know what you think of our show by taking our survey https://bit.ly/ikdsurvey20To get access to lots of patron only content check out https://www.patreon.com/iknowdinoDinosaur of the day Hypselosaurus, a sauropod found in the 1800s that was originally thought to be an aquatic crocodile.In dinosaur news this week:The Romer Prize session of SVP featured nodosaurids, massive crocodile muscles, and the use of gastrolithsThe Taphonomy & Stratigraphy session of SVP featured 3,000+ Edmontosaurus bones, sauropod tracks, & regurgitalitesThe Education & Outreach session of SVP featured interactive dinosaur lessons, field work, and lots of Augmented Reality (AR)The first complete Triceratops skull found in Colorado is now at the Denver Museum of Nature and ScienceThe Natural History Museum of Utah now has the Antarctic Dinosaurs exhibit
This week I talk to you about the dating game ,no this is not a chat about how to pick up a partner who metal detects but how the scientific community would go about dating a find using Stratigraphy and Radio Carbon Dating and how it relates to metal detecting and of course We have our tech time out and i talk about my recent adventures in metal detecting.Buy From KellyCoDetectors.com Helps the Show Stay alive: http://shrsl.com/1n2ak-1ueu-s8emOther Ways to Support the Podcast: http://themetaldetectingshow.com/become-a-sponsor/The Metal Detecting Show YouTube: https://www.youtube.com/channel/UC9jUcR7AFEA13N199nybN3wLeave me a voicemail: https://www.speakpipe.com/TheMetalDetectingShowSupport the show (https://www.buymeacoffee.com/metaldetecting)
Contaminated Site Clean-Up Information (CLU-IN): Internet Seminar Video Archives
The Society of American Military Engineers (SAME) Denver Post and Philadelphia Post along with the US Environmental Protection Agency (EPA) are hosting a series of webinars based on talks given at recent Design and Construction Issues at Hazardous Waste Sites (DCHWS) Symposiums. The mission of the DCHWS symposiums is to facilitate an interactive engagement between professionals from government and the private sector related to relevant and topical issues affecting applications of engineering and science associated with cleaning up hazardous waste sites. The symposiums also serve as a platform to facilitate the exchange of information, encourage dialogue, share experiences, and build and enhance communication among design and construction professionals. Sequence stratigraphy has arguably revolutionized stratigraphic analysis in the oil and gas industry since the 1970s, but to date, few environmental companies have utilized this power tool. Although many companies have intended on using sequence stratigraphic correlation techniques to define the subsurface heterogeneity, they have mistakenly used lithostratigraphy, significantly limiting their ability to construct accurate CSMs and develop effective remedial strategies. In this seminar, we will leverage case studies to make participants aware of the pitfalls of lithostratigraphy and highlight the role of sequence stratigraphy in generating robust and realistic hydrogeological models. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS4_011520/
Contaminated Site Clean-Up Information (CLU-IN): Internet Seminar Audio Archives
The Society of American Military Engineers (SAME) Denver Post and Philadelphia Post along with the US Environmental Protection Agency (EPA) are hosting a series of webinars based on talks given at recent Design and Construction Issues at Hazardous Waste Sites (DCHWS) Symposiums. The mission of the DCHWS symposiums is to facilitate an interactive engagement between professionals from government and the private sector related to relevant and topical issues affecting applications of engineering and science associated with cleaning up hazardous waste sites. The symposiums also serve as a platform to facilitate the exchange of information, encourage dialogue, share experiences, and build and enhance communication among design and construction professionals. Sequence stratigraphy has arguably revolutionized stratigraphic analysis in the oil and gas industry since the 1970s, but to date, few environmental companies have utilized this power tool. Although many companies have intended on using sequence stratigraphic correlation techniques to define the subsurface heterogeneity, they have mistakenly used lithostratigraphy, significantly limiting their ability to construct accurate CSMs and develop effective remedial strategies. In this seminar, we will leverage case studies to make participants aware of the pitfalls of lithostratigraphy and highlight the role of sequence stratigraphy in generating robust and realistic hydrogeological models. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS4_011520/
Between the weird and wonderful rangeomorphs of the Ediacaran Period and the world-famous palaeocommunities of the Burgess Shale, the 'Early Cambrian' is host to a 'waste basket' of fossils untied by their small size and shelly construction. These small shelly fossils (SSFs) aren't just a single group of animals, but represent several different invertebrate phyla. Further compounding the difficulty of their identification, each SSF, termed a 'sclerite', is part of a larger composite skeleton known as a 'sclerotome'. Whilst some complete sclerotomes have been preserved, many SSFs still represent multiple jigsaws thrown together and the pictures lost. Piecing the SSFs back together and building a picture of the Earliest Cambrian is Dr Marissa Betts of the University of New England, Australia. Her work on the SSFs have provided a new framework for the regional stratigraphy of Australia and in this interview, we discuss why this was necessary, how she went about it and finally, what we know about the animals themselves.
Between the weird and wonderful rangeomorphs of the Ediacaran Period and the world-famous palaeocommunities of the Burgess Shale, the 'Early Cambrian' is host to a 'waste basket' of fossils untied by their small size and shelly construction. These small shelly fossils (SSFs) aren't just a single group of animals, but represent several different invertebrate phyla. Further compounding the difficulty of their identification, each SSF, termed a 'sclerite', is part of a larger composite skeleton known as a 'sclerotome'. Whilst some complete sclerotomes have been preserved, many SSFs still represent multiple jigsaws thrown together and the pictures lost. Piecing the SSFs back together and building a picture of the Earliest Cambrian is Dr Marissa Betts of the University of New England, Australia. Her work on the SSFs have provided a new framework for the regional stratigraphy of Australia and in this interview, we discuss why this was necessary, how she went about it and finally, what we know about the animals themselves.
This template is used for sedimentary rocks to indicate grain size,
This week we talk about the Meghalayan stage, the ICS, and the Law of Superposition.We also discuss Dr. Guy Middleton, lithostratigraphy, and academic geology shade. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit letsknowthings.substack.com/subscribe
This week we talk about the Meghalayan stage, the ICS, and the Law of Superposition. We also discuss Dr. Guy Middleton, lithostratigraphy, and academic geology shade. I'm on tour: BecomingTour.com Become a patron on Patreon: patreon.com/letsknowthings For more information about this podcast and to view the show notes, visit letsknowthings.com You can find a list of the books I've written at Colin.io
We now live in the Meghalayan age—the last age of the Holocene epoch. Did you get the memo? A July decision by the International Commission on Stratigraphy, which is responsible for naming geological time periods, divided the Holocene into three ages: the Greenlandian, the Northgrippian, and the Meghalayan. The one we live in—the Meghalayan age (pronounced “megalion”)—is pegged to a global drought thought to have happened some 4200 years ago. But many critics question the timing of this latest age and the global expanse of the drought. Staff writer Paul Voosen talks with host Sarah Crespi about the evidence for and against the global drought—and what it means if it's wrong. Sarah also talks to staff writer Kelly Servick about her feature story on what happens when biocontrol goes out of control. Here's the setup: U.S. Department of Agriculture researchers wanted to know whether brown marmorated stink bugs that have invaded the United States could be controlled—aka killed—by importing their natural predators, samurai wasps, from Asia. But before they could find out, the wasps showed up anyway. Kelly discusses how using one species to combat another can go wrong—or right—and what happens when the situation outruns regulators. This week's episode was edited by Podigy. Download a transcript of this episode (PDF) Listen to previous podcasts. [Image: Melissa McMasters/Flickr; Music: Jeffrey Cook]
We now live in the Meghalayan age—the last age of the Holocene epoch. Did you get the memo? A July decision by the International Commission on Stratigraphy, which is responsible for naming geological time periods, divided the Holocene into three ages: the Greenlandian, the Northgrippian, and the Meghalayan. The one we live in—the Meghalayan age (pronounced “megalion”)—is pegged to a global drought thought to have happened some 4200 years ago. But many critics question the timing of this latest age and the global expanse of the drought. Staff writer Paul Voosen talks with host Sarah Crespi about the evidence for and against the global drought—and what it means if it’s wrong. Sarah also talks to staff writer Kelly Servick about her feature story on what happens when biocontrol goes out of control. Here’s the setup: U.S. Department of Agriculture researchers wanted to know whether brown marmorated stink bugs that have invaded the United States could be controlled—aka killed—by importing their natural predators, samurai wasps, from Asia. But before they could find out, the wasps showed up anyway. Kelly discusses how using one species to combat another can go wrong—or right—and what happens when the situation outruns regulators. This week’s episode was edited by Podigy. Download a transcript of this episode (PDF) Listen to previous podcasts. [Image: Melissa McMasters/Flickr; Music: Jeffrey Cook]
In this episode, host Andrew Geary speaks with three authors from the special section highlighting the Mediterranean region in July's The Leading Edge. These authors discuss the latest scientific scholarship and future prospects in the Mediterranean after a record-breaking find in 2015. Show notes and links at https://seg.org/podcast/Post/6438. Interviewee biographies Giovanni Rusciadelli is Associate Professor in Sedimentology & Stratigraphy at the University of Chieti and the Founder and Managing Director of Strata Georesearch, a spin-off of the University of Chieti. He is currently interested in seismic modelling of slope-margin systems based on detailed outcrop descriptions. Peter Shiner is a Senior Geoscience Advisor at Strata Georesearch and has a M.Sc. in sedimentology from the University of London. He is particularly interested in the integration of outcrop and subsurface datasets to reduce subsurface risk in exploitation of carbonate systems. Hamed El-Mowafy is the Principal Exploration and Production Geoscientist at NeuEra GeoServices in Houston Texas. He has over 25 years of experience in the oil industry and academia, working on various projects in Egypt, United States, Latin America, Canada, Middle East, West Africa and Japan. Subscribers can read the full articles in the SEG Digital Library at https://library.seg.org and abstracts are always free. Sponsor Seismic Soundoff is sponsored by the SEG Wiki - the place to find hundreds of biographies of geoscientists, open-access tutorials, and ongoing translations of SEG's best-selling book, Robert Sheriff's Encyclopedic Dictionary. Visit the https://wiki.seg.org to explore the world’s first online, geophysics encyclopedia. Credits Interviews: Giovanni Rusciadelli, Peter Shiner, Hamed El-Mowafy Original music by Zach Bridges. This episode was hosted, edited, and produced by Andrew Geary. Special thanks to the SEG podcast team: Jennifer Crockett, Beth Donica, Ally McGinnis, Mick Swiney, and Adrienne White.
Dr. Patricio Becerra from Universität Bern presented a talk on Polar Stratigraphy at the Keck Institute for Space Studies short course The Polar Ice Caps and Climate of Mars on August 8, 2017.
STEMxm Episode 26 - Paleo-Oceanography with Jennifer Walker This is the 4th episode in a series touching on climate change careers and research. Check out the others here: Episode 23 - Atmospheric Physics with Dr. Joanna Haigh Episode 24 - Theoretical Ecology with Dr. Emily Moberg Episode 25 - Ocean Corals and Climate Change with Dr. Jessica Carilli Envirothon - Environmental resources research competition for highschoolers Related Headline: Sea level rise in 20th century was fastest in 3,000 years, Rutgers-led study finds Rutgers Department website where Jennifer is completing a PhD Research concepts discussed with Jennifer on episode 26 Proxy - "In paleoclimatology, or the study of past climates, scientists use what is known as proxy data to reconstruct past climate conditions. These proxy data are preserved physical characteristics of the environment that can stand in for direct measurements. Paleoclimatologists gather proxy data from natural recorders of climate variability such as tree rings, ice cores, fossil pollen, ocean sediments, corals and historical data. By analyzing records taken from these and other proxy sources, scientists can extend our understanding of climate far beyond the instrumental record." Foraminifera are a species that are used as proxy indicators for scientists like Jennifer to study historic sea level changes. "Foraminifera (forams for short) are single-celled protists with shells. Their shells are also referred to as tests because in some forms the protoplasm covers the exterior of the shell. The shells are commonly divided into chambers which are added during growth, though the simplest forms are open tubes or hollow spheres. Depending on the species, the shell may be made of organic compounds, sand grains and other particles cemented together, or crystalline calcite." You can read a peer-reviewed article about that here. Sediment Stratigraphy - "The branch of geology that seeks to understand the geometric relationships between different rock layers (called strata), and to interpret the history represented by these rock layers." Marsh - "A marsh is a type of wetland, an area of land where water covers ground for long periods of time. Unlike swamps, which are dominated by trees, marshes are usually treeless and dominated by grasses and other herbaceous plants. Herbaceous plants have no woody stem above ground, and they grow and die back on a regular cycle. Herbaceous plants can be annuals (which grow anew every year), biennials (which take two years to complete their life cycle), or perennials (which take more than two years to complete their life cycle.) Marsh grasses and other herbaceous plants grow in the waterlogged but rich soil deposited by rivers. The plants roots bind to the muddy soil and slow the water flow, encouraging the spread of the marsh. These watery pastures are rich in biodiversity. There are three types of marshes: tidal salt marshes, tidal freshwater marshes, and inland freshwater marshes. Marshes are also common in deltas, where rivers empty into a larger body of water. Although all are waterlogged and dominated by herbaceous plants, they each have unique ecosystems." Glacial isostatic adjustment - the ongoing movement of land once burdened by ice-age glaciers.
Dustin Sweet is an Assistant Professor of Sedimentology and Stratigraphy in the Department of Geosciences. He discusses what fossil soils can tell people about the history of climate in the Southern Plains. He explains the physiography of the southern plain. He shows a variety of tools of what you can use to study past climates by looking at the weathering ratios. With these ratios a person can look at the soil and see the conditions they were in. His team studied the soil in the Southern Plains and found that in the past decades the soil was much wetter and now it has become very dry.
Dr Thierry ADATTE, UNIL
Dr Thierry ADATTE, UNIL
If it's only female mosquitoes that drink our blood, what do male mosquitoes feed on? How do we know how old human remains are? What is truth serum and how does it affect the brain? Should we keep onions in the fridge? And why do people have accents? Plus, the latest breakthrough in artificial intelligence. Like this podcast? Please help us by supporting the Naked Scientists
If it's only female mosquitoes that drink our blood, what do male mosquitoes feed on? How do we know how old human remains are? What is truth serum and how does it affect the brain? Should we keep onions in the fridge? And why do people have accents? Plus, the latest breakthrough in artificial intelligence. Like this podcast? Please help us by supporting the Naked Scientists
This article outlines the main projects at the AGS and the top field projects for the summer of 2011.
This article outlines the main projects at the AGS and the top field projects for the summer of 2011.
Fakultät für Geowissenschaften - Digitale Hochschulschriften der LMU
Wed, 16 Dec 2009 12:00:00 +0100 https://edoc.ub.uni-muenchen.de/11088/ https://edoc.ub.uni-muenchen.de/11088/1/Frieling_Dorothea.pdf Frieling, Dorothea ddc:550, ddc:500, Fakultä
William Smith is credited as the creator of the first geological map. In this video, Chris Wilson talks us through this milestone in geological history and shows us Smith's map.
William Smith is credited as the creator of the first geological map. In this video, Chris Wilson talks us through this milestone in geological history and shows us Smith's map.
Transcript -- William Smith is credited as the creator of the first geological map. In this video, Chris Wilson talks us through this milestone in geological history and shows us Smith's map.
Transcript -- William Smith is credited as the creator of the first geological map. In this video, Chris Wilson talks us through this milestone in geological history and shows us Smith's map.
Investigating the fourth minoan layer through the main cliffs of Fira. Explaining the 'air fall deposit'.
Investigating the fourth minoan layer through the main cliffs of Fira. Explaining the 'air fall deposit'.
Transcript -- Investigating the fourth minoan layer through the main cliffs of Fira. Explaining the 'air fall deposit'.
Transcript -- Investigating the fourth minoan layer through the main cliffs of Fira. Explaining the 'air fall deposit'.
The geological record of environmental change - for iPod/iPhone
Transcript -- Sediment transportation within incised valleys.
The geological record of environmental change - for iPod/iPhone
Sediment transportation within incised valleys.
The geological record of environmental change - for iPod/iPhone
Transcript -- The geology of the 'panther tongue' at Gentile wash in Utah and the similarities of river dominated Para sequence systems and wave dominated systems.
The geological record of environmental change - for iPod/iPhone
The geology of the 'panther tongue' at Gentile wash in Utah and the similarities of river dominated Para sequence systems and wave dominated systems.
The geological record of environmental change - for iPad/Mac/PC
The geology of the 'panther tongue' at Gentile wash in Utah and the similarities of river dominated Para sequence systems and wave dominated systems.
The geological record of environmental change - for iPad/Mac/PC
Transcript -- The geology of the 'panther tongue' at Gentile wash in Utah and the similarities of river dominated Para sequence systems and wave dominated systems.
The geological record of environmental change - for iPad/Mac/PC
Sediment transportation within incised valleys.
The geological record of environmental change - for iPad/Mac/PC
Transcript -- Sediment transportation within incised valleys.
Mon, 1 Jan 1990 12:00:00 +0100 http://epub.ub.uni-muenchen.de/5584/ http://epub.ub.uni-muenchen.de/5584/1/5584.pdf Altermann, Wladyslaw; Hälbich, Ingo W. Altermann, Wladyslaw und Hälbich, Ingo W. (1990): Thrusting, folding and stratigraphy of the Ghaap Group along the southwestern margin of the Kaapvaal Craton South African Journal of Geology, Aug 1990; 93: 553 - 566. In: South African Journal of