Podcasts about petrology

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Best podcasts about petrology

Latest podcast episodes about petrology

The Smart 7
The Sunday 7 - Iceland's volcanoes kick off, NASA celebrates 25 years of the ISS, Mushroom Therapy and the Woolly Worm Festival

The Smart 7

Play Episode Listen Later Nov 19, 2023 18:06


The Smart 7 is an award winning daily podcast that gives you everything you need to know in 7 minutes, at 7 am, 7 days a week... With over 14 million downloads and consistently charting, including as No. 1 News Podcast on Spotify, we're a trusted source for people every day and the Sunday 7 has just won a Gold Award as “Best Conversation Starter” in the International Signal Podcast Awards If you're enjoying it, please follow, share, or even post a review, it all helps...Today's episode includes the following guests:Jess Parker - BBC News Correspondent Thor Thordarson - Professor in Volcanology and Petrology at the University of IcelandAri Trausti Gudmundsson - GeophysicistWill Guyatt - The Smart 7's Tech Guru Josh Cassada - NASA Astronaut Gioia Massa - NASA - International Space Station researcher Dana Weigel - Deputy Program Manager of the International Space Station Kelsey Hatcher - Pregnant and in possession of two uteriiDr Richard Davis - Maternal Fetal Medical SpecialistHeather Lee - Therapist Colorado Dana Sanchez, Donna Strong - experimenting with Mushrooms Penny Wong - Australia's Foreign Minister Mary Jo Brewbaker - Organiser - Woolly Worm Festival, Banner Elk, North Carolina Contact us over at X or visit www.thesmart7.comPresented by Ciara Revins, written by Liam Thompson and produced by Daft Doris. Hosted on Acast. See acast.com/privacy for more information.

Oxford Sparks Big Questions
Would you want to meet an alien?

Oxford Sparks Big Questions

Play Episode Listen Later Jun 21, 2023 16:23


What might an experimental petrologist (someone who makes rocks in the lab) and an immunologist (someone who studies the body's defence system) have in common? Well, it turns out, a shared interest in iron might be one thing. And what does all this have to do with aliens, and, specifically, whether you would want to meet one? Well, you'll have to listen to find out! With Prof Jon Wade from the Department of Earth Sciences.

Discovery to Recovery
Episode 31: Porphyry Systems - from Bottom to Top

Discovery to Recovery

Play Episode Listen Later Jan 23, 2023 55:59


Can we track the evolution of a fertile porphyry system from the mantle to the deposit?  The FAMOS (From Arc Magmas to Ores) Project in the UK was conceived to tackle the fundamental processes involved in porphyry ore systems and brought a diverse set of researchers and industry collaborators together.  The interdisciplinary teams combined experimental petrology, volcanology, numerical modelling and mineral analysis.  They worked together to  constrain the conditions for porphyry ore deposit formation and to further develop indicators of fertile systems. The aim was to use mineral chemistry to interpret processes in the magmatic-hydrothermal systems and ultimately use the recorded signatures in minerals as a discrimination tool in exploration.  As the project wraps-up we talked to three contributors about what they have learned and what this type of ‘big' science collaboration can accomplish.Our first guest, Jamie Wilkinson is a senior scientist at the Natural History Museum in London, UK.  A self-described 'want to be petrologist', Jamie has a diverse background in ore deposits with expertise in metal transport, applications of mineral chemistry and isotopes.  Jamie is a leader of the FAMOS research project and takes  us through the big ideas from the mantle to the signatures in the minerals.Growing up in Siberia, Elena Melekhova was surrounded by geology and mines, but it was the discovery of experimental petrology that united her drive to understand the natural world with her passion for laboratory experiments.  Elena is the experimental petrology laboratory lead at the University of Oxford and her FAMOS research provides fundamental data that challenges some of our assumption about the Sr/Y indicator ratio.So why would industry be interested in participating in this fundamental research into magmatic-hydrothermal processes?  We talked to Christian Ihlenfeld, Anglo American to find out what was surprising to them about the outcomes and why they provided a significant, large data set on the Los Bronces District, Chile for use by the FAMOS consortium.Theme music is Confluence by Eastwindseastwindsmusic.com

Astro arXiv | astro-ph.EP
Meteorite petrology versus genetics: Toward a unified binominal classification

Astro arXiv | astro-ph.EP

Play Episode Listen Later Sep 18, 2022 1:02


Meteorite petrology versus genetics: Toward a unified binominal classification by Emmanuel Jacquet. on Sunday 18 September The current meteorite taxonomy, a result of two centuries of meteorite research and tradition, entangles textural and genetic terms in a less than consistent fashion, with some taxa (like shergottites) representing varied lithologies from a single putative parent body while others (like pallasites) subsume texturally similar objects of multifarious solar system origins. The familiar concept of group as representative of one primary parent body is also difficult to define empirically. It is proposed that the classification becomes explicitly binominal throughout the meteorite spectrum, with classes referring to petrographically defined primary rock types, whereas groups retain a genetic meaning, but no longer tied to any assumption on the number of represented parent bodies. The classification of a meteorite would thus involve both a class and a group, in a two-dimensional fashion analogous to the way Van Schmus and Wood decoupled primary and secondary properties in chondrites. Since groups would not substantially differ, at first, from those in current use de facto, the taxonomic treatment of normal meteorites, whose class would bring no new information, would hardly change. Yet classes combined with high- or low-level groups would provide a standardized grid to characterize petrographically and/or isotopically unusual or anomalous meteorites (which make up the majority of represented meteorite parent bodies) for example, in relation to the carbonaceous/noncarbonaceous dichotomy. In the longer term, the mergers of genetically related groups, a more systematic treatment of lithology mixtures, and the chondrite/achondrite transition can further simplify the nomenclature. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.07377v1

Astro arXiv | all categories
Meteorite petrology versus genetics: Toward a unified binominal classification

Astro arXiv | all categories

Play Episode Listen Later Sep 18, 2022 1:00


Meteorite petrology versus genetics: Toward a unified binominal classification by Emmanuel Jacquet. on Sunday 18 September The current meteorite taxonomy, a result of two centuries of meteorite research and tradition, entangles textural and genetic terms in a less than consistent fashion, with some taxa (like shergottites) representing varied lithologies from a single putative parent body while others (like pallasites) subsume texturally similar objects of multifarious solar system origins. The familiar concept of group as representative of one primary parent body is also difficult to define empirically. It is proposed that the classification becomes explicitly binominal throughout the meteorite spectrum, with classes referring to petrographically defined primary rock types, whereas groups retain a genetic meaning, but no longer tied to any assumption on the number of represented parent bodies. The classification of a meteorite would thus involve both a class and a group, in a two-dimensional fashion analogous to the way Van Schmus and Wood decoupled primary and secondary properties in chondrites. Since groups would not substantially differ, at first, from those in current use de facto, the taxonomic treatment of normal meteorites, whose class would bring no new information, would hardly change. Yet classes combined with high- or low-level groups would provide a standardized grid to characterize petrographically and/or isotopically unusual or anomalous meteorites (which make up the majority of represented meteorite parent bodies) for example, in relation to the carbonaceous/noncarbonaceous dichotomy. In the longer term, the mergers of genetically related groups, a more systematic treatment of lithology mixtures, and the chondrite/achondrite transition can further simplify the nomenclature. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.07377v1

Astro arXiv | all categories
Meteorite petrology versus genetics: Toward a unified binominal classification

Astro arXiv | all categories

Play Episode Listen Later Sep 18, 2022 1:02


Meteorite petrology versus genetics: Toward a unified binominal classification by Emmanuel Jacquet. on Sunday 18 September The current meteorite taxonomy, a result of two centuries of meteorite research and tradition, entangles textural and genetic terms in a less than consistent fashion, with some taxa (like shergottites) representing varied lithologies from a single putative parent body while others (like pallasites) subsume texturally similar objects of multifarious solar system origins. The familiar concept of group as representative of one primary parent body is also difficult to define empirically. It is proposed that the classification becomes explicitly binominal throughout the meteorite spectrum, with classes referring to petrographically defined primary rock types, whereas groups retain a genetic meaning, but no longer tied to any assumption on the number of represented parent bodies. The classification of a meteorite would thus involve both a class and a group, in a two-dimensional fashion analogous to the way Van Schmus and Wood decoupled primary and secondary properties in chondrites. Since groups would not substantially differ, at first, from those in current use de facto, the taxonomic treatment of normal meteorites, whose class would bring no new information, would hardly change. Yet classes combined with high- or low-level groups would provide a standardized grid to characterize petrographically and/or isotopically unusual or anomalous meteorites (which make up the majority of represented meteorite parent bodies) for example, in relation to the carbonaceous/noncarbonaceous dichotomy. In the longer term, the mergers of genetically related groups, a more systematic treatment of lithology mixtures, and the chondrite/achondrite transition can further simplify the nomenclature. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.07377v1

Astro arXiv | astro-ph.EP
Meteorite petrology versus genetics: Toward a unified binominal classification

Astro arXiv | astro-ph.EP

Play Episode Listen Later Sep 18, 2022 1:00


Meteorite petrology versus genetics: Toward a unified binominal classification by Emmanuel Jacquet. on Sunday 18 September The current meteorite taxonomy, a result of two centuries of meteorite research and tradition, entangles textural and genetic terms in a less than consistent fashion, with some taxa (like shergottites) representing varied lithologies from a single putative parent body while others (like pallasites) subsume texturally similar objects of multifarious solar system origins. The familiar concept of group as representative of one primary parent body is also difficult to define empirically. It is proposed that the classification becomes explicitly binominal throughout the meteorite spectrum, with classes referring to petrographically defined primary rock types, whereas groups retain a genetic meaning, but no longer tied to any assumption on the number of represented parent bodies. The classification of a meteorite would thus involve both a class and a group, in a two-dimensional fashion analogous to the way Van Schmus and Wood decoupled primary and secondary properties in chondrites. Since groups would not substantially differ, at first, from those in current use de facto, the taxonomic treatment of normal meteorites, whose class would bring no new information, would hardly change. Yet classes combined with high- or low-level groups would provide a standardized grid to characterize petrographically and/or isotopically unusual or anomalous meteorites (which make up the majority of represented meteorite parent bodies) for example, in relation to the carbonaceous/noncarbonaceous dichotomy. In the longer term, the mergers of genetically related groups, a more systematic treatment of lithology mixtures, and the chondrite/achondrite transition can further simplify the nomenclature. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.07377v1

A Rock and A Hard Place
Dr. Alex Speer Part 2

A Rock and A Hard Place

Play Episode Listen Later Mar 31, 2022 11:50


This week, we are again joined by Dr Alex Speer, former long time executive director of the Mineralogical Society of America. Dr. Spear is a MSC fellow and the secretary treasurer of the Geological Society of America's Mineralogy Geochemistry, Petrology and Volcanology Division. In this episode, we talk about geopolitical competition for mineral resources and why minerals matter so much in modern society. 

america msc spear speer geological society petrology mineralogical society
Chrononauts
Chrononauts Episode 24.2: Atlantis and Valhalla

Chrononauts

Play Episode Listen Later Mar 19, 2022 70:02


Containing Matters in which vars. Elders take an Interest in Petrology. Timestamps: Francis Stevens - "Claimed!" (1920) (0:00) Nictzin Dyalhis - "The Sea-Witch" (1937) (47:26) Bibliography: Davin, Eric Leif - "Partners in wonder: Women and the Birth of Science Fiction" (2006) Hoppenstand, Gary - introduction to "The Nightmare and Other Tales of Dark Fantasy" (2004) Liptak, Andrew - "The Influential Pulp Career of Francis Stevens", Dec 19, 2013, Kirkus https://www.kirkusreviews.com/news-and-features/articles/influential-pulp-career-francis-stevens/ Nemo, August - introduction to "The Woman Who Invented Dark Fantasy" (2019)

Quiz Quiz Bang Bang Trivia
Ep 131: General Trivia

Quiz Quiz Bang Bang Trivia

Play Episode Listen Later Oct 15, 2021 34:05


On Today's Trivia Podcast Episode David and Annie are thrilled to have a sponsor with Jstudy and you can get 50% off now when you click on this link https://www.jstudyguide.com/discount/QUIZBANG: On an American 15-ball pool table used for play 8-Ball or 9-Ball, what color is the 6 ball? What is the term for the regular reptition of a form? Popularized by New York's Le Cirque Restaurant in the mid 1970s, what Italian dish features vegetables in a light cream sauce? Liberia, Zimbabwe, and Belize all share what official language? ATMs in in this city are the only ones in the world that allow users to make transactions in Latin. Who is the longest-tenured cast member in the history of Saturday Night Live? Bobbi-Bobbi, one of the ancestarl snakes of the BinBinga, an aboriginal people living in Northern Australia, created what weapon out of one of his own ribs? Petrology is the scientific study of what? What animal has the following species? Sockeye, Coho, Chum, Chinook (aka King)? Which company was named by its founder Anthony Wood after the Japanese word for “six” because it was the sixth company he started? The memoir of which musical artist was titled The Beautiful Ones? What word can proceed the following words to form distinct prepositional phrases: late, note, sorts? Music Hot Swing, Fast Talkin, Bass Walker, Dances and Dames by Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ Don't forget to follow us on social media for more trivia: Patreon - patreon.com/quizbang - Please consider supporting us on Patreon. Check out our fun extras for patrons and help us keep this podcast going. We appreciate any level of support! Website - quizbangpod.com Check out our website, it will have all the links for social media that you need and while you're there, why not go to the contact us page and submit a question! Facebook - @quizbangpodcast - we post episode links and silly lego pictures to go with our trivia questions. Enjoy the silly picture and give your best guess, we will respond to your answer the next day to give everyone a chance to guess. Instagram - Quiz Quiz Bang Bang (quizquizbangbang), we post silly lego pictures to go with our trivia questions. Enjoy the silly picture and give your best guess, we will respond to your answer the next day to give everyone a chance to guess. Twitter - @quizbangpod We want to start a fun community for our fellow trivia lovers. If you hear/think of a fun or challenging trivia question, post it to our twitter feed and we will repost it so everyone can take a stab it. Come for the trivia - stay for the trivia. Ko-Fi - ko-fi.com/quizbangpod - Keep that sweet caffeine running through our body with a Ko-Fi, power us through a late night of fact checking and editing!

Superheroes of Science
Mapping the Guts of Volcanoes: A Collaborative Effort

Superheroes of Science

Play Episode Listen Later Aug 2, 2021 43:15


What do the guts of a volcano look like? According to Jonathan Delph, Assistant Professor in the Department of Earth, Atmospheric and Planetary Sciences at Purdue University, it depends on the geoscientist you ask. Delph walks us through several illustrations showing the ways different geoscientific disciplines might view magmatic structure: Geochemistry (process-focused), Petrology (field-focused), and Seismology-focused. Additionally, Delph reveals a recent paradigm shift in scientific thinking about the underground composition of volcanoes.

Geology Podcast Network
Fake Rocks with Stefano Poli

Geology Podcast Network

Play Episode Listen Later Jul 8, 2021 45:11


Frankenstein was a young scientist who enjoyed doing scientific experiments to create a sapient creature. In this episode our guest is a great Senior Experimental Petrologist who talks about geo-scientists who create rocks and experiments to study Earth processes. Professor Stefano Poli from the University of Milan tells Dr. B everything about the Petrological Cuisine […]

Gneiss Chats
Fake Rocks with Stefano Poli

Gneiss Chats

Play Episode Listen Later Jul 8, 2021 45:11


Frankenstein was a young scientist who enjoyed doing scientific experiments to create a sapient creature. In this episode our guest is a great Senior Experimental Petrologist who talks about geo-scientists who create rocks and experiments to study Earth processes. Professor Stefano Poli from the University of Milan tells Dr. B everything about the Petrological Cuisine […]

It's Sedimentary, My Dear: A Geology Podcast
Episode 11: Soil Petrology - Dishing the Dirt on Soil

It's Sedimentary, My Dear: A Geology Podcast

Play Episode Listen Later May 27, 2021 100:51 Very Popular


After an unexpected hiatus, hosts Jane and Ellen return with a down and dirty episode about soil. Jane reveals her childhood experiences with a DIY mud spa before digging into the agricultural and geological definitions for soil. They discuss the four main components of soil: inorganics, organics, water, and air or gas. They talk about how to identify soil texture and soil structure. They also discuss soil profile and soil horizons (which are similar to cake layers, but less delicious). They review the processes and factors that form soil. And finally, they explain the 12 basic soil orders used for soil taxonomy by USDA scientists. Note: this dirty, filthy episode is approved for audiences.Our main source for this episode is: The Nature and Properties of Soils (14th ed.), Nyle C. Brady, and Ray R. WeilMusic for It's Sedimentary, My Dear is provided by Solar Sleighs.Follow us on Twitter and Instagram. You can also contact us through our website sedimentarymydear.com.

Geology Bites By Oliver Strimpel
Marie Edmonds on Volcanic Gas

Geology Bites By Oliver Strimpel

Play Episode Listen Later Apr 30, 2021 23:12 Very Popular


Marie Edmonds is Professor of Volcanology and Petrology at Cambridge University. She studies the cycling of volatile elements such as carbon between the atmosphere and the mantle and the role that volatiles play in melting, magma transport, and the style of volcanic eruptions. She describes how all volcanos emit gas and how the gas can reveal a lot about the origin of the magma and also forewarn of eruptions. Here is is monitoring gases emitted during the 2018 eruption of Kilauea on Hawaii. For podcast illustrations and to learn more about Geology Bites, go to geologybites.com.

Big Picture Science
Volcanic Mind Melt

Big Picture Science

Play Episode Listen Later Apr 5, 2021 55:58


The Earth's surface is dappled with more than a thousand volcanoes. They mark the edges of tectonic plates, spewing hot gas and ash, and boiling over with lava. We can detect the warning signs of an eruption, but why is it still so hard to predict? Meet a few currently active hot heads: Mauna Loa, Nyiragongo, Fagradalsfjall, and Soufrière – and find out what gives them individual personalities. Plus, what a newly excavated snack bar in Pompeii, buried and preserved when Vesuvius erupted in 79 AD, can teach us about eruptions.  Guests: Christopher Jackson – Chair of Sustainable Geosciences at the University of Manchester Thorvaldur Thordarson – Professor in Volcanology and Petrology at the University of Iceland Maite Maguregui – Professor, Department of Analytical Chemistry at the University of the Basque Country, Spain Silvia Perez-Diez – Researcher in the Department of Analytical Chemistry at the University of the Basque Country, Spain Alia Wallace – Archaeologist with the Bureau of Land Management in Colorado with a PhD from University College London Jazmin Scarlett – Teaching fellow in physical geology, Newcastle University   Learn more about your ad choices. Visit megaphone.fm/adchoices

Big Picture Science
Volcanic Mind Melt

Big Picture Science

Play Episode Listen Later Apr 5, 2021 52:29


The Earth’s surface is dappled with more than a thousand volcanoes. They mark the edges of tectonic plates, spewing hot gas and ash, and boiling over with lava. We can detect the warning signs of an eruption, but why is it still so hard to predict? Meet a few currently active hot heads: Mauna Loa, Nyiragongo, Fagradalsfjall, and Soufrière – and find out what gives them individual personalities. Plus, what a newly excavated snack bar in Pompeii, buried and preserved when Vesuvius erupted in 79 AD, can teach us about eruptions.  Guests: Christopher Jackson – Chair of Sustainable Geosciences at the University of Manchester Thorvaldur Thordarson – Professor in Volcanology and Petrology at the University of Iceland Maite Maguregui – Professor, Department of Analytical Chemistry at the University of the Basque Country, Spain Silvia Perez-Diez – Researcher in the Department of Analytical Chemistry at the University of the Basque Country, Spain Alia Wallace – Archaeologist with the Bureau of Land Management in Colorado with a PhD from University College London Jazmin Scarlett – Teaching fellow in physical geology, Newcastle University  

Racing HQ Saturday
Nathan Doyle

Racing HQ Saturday

Play Episode Listen Later Nov 13, 2020 5:19


Three good chances in today on his home track with CAFE ROYAL, STRAWB and PETROLOGY

Trekzone Podcasts
All About Experimental Petrology

Trekzone Podcasts

Play Episode Listen Later Mar 22, 2020 19:10


Today Dr. Kayla Iacovino stops by Trekzone for a chat about her work as the experimental petrologist as well as her passion for Trek. The post All About Experimental Petrology appeared first on Trekzone.

Of volcanoes and men. Про вулканы и людей
Family interview w/ Anna Dymshits & Igor Sharygin

Of volcanoes and men. Про вулканы и людей

Play Episode Listen Later Feb 13, 2020 32:51


s2e14. In conversation with a family of geologists: Anna Dymshits, PhD, senior scientist & Igor Sharygin, PhD, head of the Petrology, Geochemistry and Ore Genesis Lab, both at Institute of Earth’s Crust SB RAS, Irkutsk, Russia. Разговор по душам с семьёй геологов: Анна Дымшиц, к.г.-м.н., с.н.с. & Игорь Шарыгин, к.г.-м.н., зав. лаб. петрологии, геохимии и рудогенеза — оба в Институте Земной Коры СО РАН, Иркутск. Также Анна — специалист в области мантийной петрологии, держатель гранта РНФ для молодых учёных и мама двоих детей, а Игорь — папа двоих детей и любящий хозяин двоих котов :) 02:00 про судьбоносную командировку в Японии 09:05 про долгосрочные отношения :) 12:10 почему остались работать в России 22:45 про семейную исследовательскую деятельность ResearchGate Игоря: https://www.researchgate.net/profile/Igor_Sharygin ResearchGate Анны: https://www.researchgate.net/profile/Anna_Dymshits Инстаграм: https://www.instagram.com/hanna_dymshits/

Oxford Sparks Big Questions
'Land, Sea and Air' Part 1 - How mountains are made

Oxford Sparks Big Questions

Play Episode Listen Later May 27, 2016 11:36


How do we discover the origins of mountains? Rock climber, mountaineer and geologist, Professor Mike Searle, explains how his work to understand mountain ranges, particularly the Himalayas, can unearth clues about the origins of mountains. From trekking across mountains to map them, to using new technology to understand how the continents have moved in the past, and how they're behaving today. He also discusses last years tragic Earthquake in Nepal. Read more about his work at http://www.travelinggeologist.com/tg-mike-searle/.

Fakultät für Geowissenschaften - Digitale Hochschulschriften der LMU
Combining experimental volcanology, petrology and geophysical monitoring techniques

Fakultät für Geowissenschaften - Digitale Hochschulschriften der LMU

Play Episode Listen Later Jul 19, 2012


In general, an understanding of the complex processes acting before and during volcanic eruptions is approached from various different sides, e.g. laboratory experiments on fragmentation and/or bubble burst eruption mechanisms, petrological analysis of the eruptive products and various geophysical monitoring and source localization techniques. Each of these techniques can deliver valuable insights by adding pieces of information about the physical processes that drive the volcanic activity. However, often studies are focussing on a single aspect of the process, without setting the results in a more general context. Often, this strategy is absolutely valid, when the focus is laid on a single piece in the complex chain of processes taking place in volcanic eruptions. This must fail when the results aim to suggest a valid model for the combined observations at volcanoes using the above described techniques. The resulting models of volcanic source mechanisms and eruptive features can therefore lead to biased assumptions. This study aims to close this gap between laboratory experiments, petro-chemical analysis and modern geophysical monitoring and source localization techniques in a case study of Mt. Yasur (Vanuatu) volcano. The presented laboratory experiments on explosive volcanic eruptions upon rapid decompression show that decompression rate is the dening parameter in the experiments and that a scaling to large-scale processes is valid. Furthermore, a model is presented that correlates measured particle velocities to decompression rate and initial gas-overpressure. This model is used to estimate source volumes and overpressures at Volcan de Colima (Mexico) and Mt. Yasur (Vanuatu). A petrographically and geochemically characterization of Mt. Yasurs eruptive products suggests a shallow magma-mingling process at both of Mt. Yasurs active craters, perhaps due to rejuvenation of material slumped from the crater walls into an open conduit system. A study on the time-reversal imaging technique and its ability to detect the details of finite rupture (or time-variant) processes shows that the limitations of TR imaging start where the source stops being point-localised with respect to the used wavelength. Inversion of the source mechanisms of Strombolian explosions at Mt. Yasur are performed using a multi-parameter dataset consisting of seismic, acoustic and Doppler-radar data. Time-reversal imaging and moment tensor inversion are used to invert the source location of the seismic long-period (f < 1Hz) signals, which is supposed to refl ect fluid movement at depth. The source is located in the north-east of the crater region in a depth of several hundred meters. Furthermore, the source volume of the radiated infrasound signals is estimated from fundamental resonance frequencies. The results showed that the maximum particle velocity measured with the Doppler radar correlates nicely with the estimated source volumes lengths. The inverted seismic moment does not show any correlation with the estimated slug sizes, i.e. the slug size does not map in seismic moment. This is an important information, as it states that a larger source volume does not necessarily produces a larger seismic moment. From these combined results, a common feeder system for all active craters at Mt. Yasur is proposed. The differences in event recurrence rate at the three active craters are believed to be controlled by either the conduit geometry or variations in degassing or cooling rate. Strombolian-type eruptions at Mt. Yasur are suggested to be due to the burst of gas slugs with lengths and overpressures comparable to volcanoes showing similar eruptive patterns. The results illustrate the importance of combined studies that overcome the limitations of single disciplines. In this way, a more comprehensive view of volcanic eruptions and the associated observations is possible. Such a multi-disciplinary approach will contribute to a better understanding of volcanic processes and the associated hazards.

Island Arc Magmatism: Santorini - for iPad/Mac/PC
Transcript -- The Crystal Fractionation experiment

Island Arc Magmatism: Santorini - for iPad/Mac/PC

Play Episode Listen Later Jun 2, 2009


Transcript -- Simulating a magma chamber in a laboratory to show how the process of Crystal Fractionation works.

Island Arc Magmatism: Santorini - for iPad/Mac/PC
The Crystal Fractionation experiment

Island Arc Magmatism: Santorini - for iPad/Mac/PC

Play Episode Listen Later Jun 2, 2009 4:53


Simulating a magma chamber in a laboratory to show how the process of Crystal Fractionation works.

Island Arc Magmatism: Santorini - for iPod/iPhone
Transcript -- The Crystal Fractionation experiment

Island Arc Magmatism: Santorini - for iPod/iPhone

Play Episode Listen Later Jun 2, 2009


Transcript -- Simulating a magma chamber in a laboratory to show how the process of Crystal Fractionation works.

Island Arc Magmatism: Santorini - for iPod/iPhone
The Crystal Fractionation experiment

Island Arc Magmatism: Santorini - for iPod/iPhone

Play Episode Listen Later Jun 2, 2009 4:53


Simulating a magma chamber in a laboratory to show how the process of Crystal Fractionation works.

In Our Time: Science
The Second Law of Thermodynamics

In Our Time: Science

Play Episode Listen Later Dec 16, 2004 27:34


Melvyn Bragg and guests discuss the Second Law of Thermodynamics which can be very simply stated like this: "Energy spontaneously tends to flow from being concentrated in one place to becoming diffused and spread out". It was first formulated – derived from ideas first put forward by Lord Kelvin - to explain how a steam engine worked, it can explain why a cup of tea goes cold if you don't drink it and how a pan of water can be heated to boil an egg.But its application has been found to be rather grander than this. The Second Law is now used to explain the big bang, the expansion of the cosmos and even suggests our inexorable passage through time towards the 'heat death' of the universe. It's been called the most fundamental law in all of science, and CP Snow in his Two Cultures wrote: "Not knowing the Second Law of Thermodynamics is like never having read a work of Shakespeare".What is the Second Law? What are its implications for time and energy in the universe, and does it tend to be refuted by the existence of life and the theory of evolution?With John Gribbin, Visiting Fellow in Astronomy at the University of Sussex; Peter Atkins, Professor of Chemistry at Oxford University; Monica Grady, Head of Petrology and Meteoritics at the Natural History Museum.

In Our Time
The Second Law of Thermodynamics

In Our Time

Play Episode Listen Later Dec 16, 2004 27:34


Melvyn Bragg and guests discuss the Second Law of Thermodynamics which can be very simply stated like this: "Energy spontaneously tends to flow from being concentrated in one place to becoming diffused and spread out". It was first formulated – derived from ideas first put forward by Lord Kelvin - to explain how a steam engine worked, it can explain why a cup of tea goes cold if you don't drink it and how a pan of water can be heated to boil an egg.But its application has been found to be rather grander than this. The Second Law is now used to explain the big bang, the expansion of the cosmos and even suggests our inexorable passage through time towards the 'heat death' of the universe. It's been called the most fundamental law in all of science, and CP Snow in his Two Cultures wrote: "Not knowing the Second Law of Thermodynamics is like never having read a work of Shakespeare".What is the Second Law? What are its implications for time and energy in the universe, and does it tend to be refuted by the existence of life and the theory of evolution?With John Gribbin, Visiting Fellow in Astronomy at the University of Sussex; Peter Atkins, Professor of Chemistry at Oxford University; Monica Grady, Head of Petrology and Meteoritics at the Natural History Museum.