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There are discoveries that change a region's prospectivity forever. The Challenger Gold Mine in the Gawler Craton is one of them. In this episode of Coffee with Samso, I sat down with David Edgecombe, the geologist who was instrumental in the discovery of the Challenger Gold Deposit in outback South Australia. David is not simply a man who happened to drill a good hole. He is a geologist's geologist — one who understood the rocks, trusted the science, and applied a methodology that was, at the time, genuinely groundbreaking in this part of the world. At 1.2 million ounces of gold, Challenger remains an enigma in the Gawler Craton. There is nothing comparable within a radius of several hundred kilometres. And yet, as David explains, the discovery almost didn't happen. A single calcrete sample — one out of more than 3,600 collected — came back at 180 parts per billion gold. Move that sample 200 metres in either direction, and the number drops below 20 ppb. The story of Challenger is as much about luck as it is about the brilliance of the exploration strategy. What makes this conversation particularly compelling is that David takes us back to the very beginning — the regional sampling programs, the calcrete geochemistry methodology that Dominion Mining pioneered in South Australia, the moment that anomalous result came through on the fax machine late one evening, and the drilling program that confirmed one of the more significant gold discoveries in Australian exploration history. This is a conversation about discovery methodology, about what works and what doesn't, about the value of good science over noise, and about what the next generation of explorers should be looking for in one of Australia's most underexplored terrains. In the words of Samso, get your favourite beverage and sit and listen to another great insight from Coffee with Samso. Coffee with Samso - Episode 219 | The Discovery of the Challenger Gold Mine | Adelaide | South Australia Chapters 00:00 Start 00:10 Introduction 03:12 Introduction of David Edgecombe 04:32 The South Australian Connection 05:31 The South Hilda Project - The Biginning of Interest in Gold Exploration 06:08 - The Introduction of Exploration in the Challenger Area and Calrete Sampling 06:58 The Realisation of Gold and Calcrete - Bountry Gold Mine 07:40 Adelaide Resources - Andromeda Metals Limited - Realisation of the Potential - Calcrete Samspling. 08:42 The Calcrete Sampling Program 10:29 Tigtening of the Regional Sampling Program. - Initiating the Drilling Program. 11:22 The Discovery Hole - The Sixth Hole 12:37 Confirmation Hole - The Seventh Hole 13:02 The Mother Lode - Drilling the Lode Plunge 13:54 The Complicationm of Corporate Activities 14:33 Did David Think It was Going to As Big As It was? 16:29 Does David think Challenger is still feasible? 17:04 Is Challenger a Geochemical or Goephysical Discovery? 17:39 Geophysical was not Impactful in the Exploration 18:40 No Outcrop - Surface Description 19:27 Modern Explorers should go back to Calcrete Sampling 20:29 New Thoughts on Exploration - XRF 21:25 The Importance of Regolith 22:09 Did the MMI work ? 23:04 The XRF Sampling Potential 23:56 The Mystery of Sampling Points 24:28 Sampling the calcrete and soils with XRF. 25:21 The Naming of Challenger 27:09 Mineral Exploration takes time. 28:06 Was there a sliding doors moment that meant Challenger was not Discovered? 28:36 Timing of the Discover soil sample. 29:09 Was It a Eureka moment? 29:21 Closest Sampling result 29:41 Infill Discussion 30:37 Latest Gold Potential in Gawler 31:19 Could the same exploration style work today in 2026? 32:16 Should we go back to Calcrete sampling ? 34:15 Was there much Iron in the Challenger Area? 35:57 Is Challenger Alone ? 37:17 The Element of Luck 38:22 How close were you to missing the target ? 39:33 Othe Sampling Techniques ? 40:37 Interpretation of the Other sampling Techniques ? 42:09 What Would David Tell A Younger Geologist? 44;03 The Wisdom of Age ? 44:34 Any last minute Wisdon to share? 45:20 The Myth of Geologist Destrying the Environment 46:29 David The Geologist. 47:20 Conclusion
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“01_11_2025 – _Foundations of Wisdon_ – David Mickelson”. The post Foundations of Wisdon – David Mickelson first appeared on New Song Church. The post Foundations of Wisdon – David Mickelson appeared first on New Song Church.
We chat X-mas tree's then Greg lays down some wisdom of the internet.
There is a lot of difference between focus and attention. The right attention increases our knowledge. Sadhguru shares his thoughts on how to be more attentive to all the aspects around us.
Join us as we enter the Notable Nostalgia time machine and go back to the 1960's!!!In this episode we go back in the time to when people were saying "Groovy" "Far out man!" and "Peace and Love". During a time of turbulence in America where people were protesting in the streets, there is a racial divide, the politicians were less than honest... wait... let me check... yea... we are in the 60's... sounds a lot like... well, you know what!? Nevermind.We pick our favorite song, album and movie that came out in the 1960's. So keep on truckin, grab a J and sit back and relax while oyu listen to this week's episode of Notable Nostalga!Make sure to leave us a 5 star review, and tell a friend about the show. If you want to suggest a topic for an upcoming show email us at NotableNostalgia90@Gmail.com or find us at Facebook.com/NotableNostalgiaThanks for listening Nostalgia Nerds!
WORLDLY AND HEAVENLY WISDONJAMES 3:13-18
Proverbs, wisdom from the Lord
Some people - frankly - talk too much. Blah, blah, blah - on and on. In their own eyes - they appear so wise. But you know what I’ve noticed? The really smart people, the wise ones talk less and listen more. In fact the more I see, the more I learn ... the more I come to the conclusion that wisdom is, well ... understated.Support the show: https://christianityworks.com/channels/adp/See omnystudio.com/listener for privacy information.
Kyle Meier | Matthew 18:15-20 | The Good Fight Topics: Conflict, Forgiveness, Redemption
Katie Distefano | Acts 2:1-4, 12-21 | The Good Fight Topics: Conflict, Relationships, Holy Spirit
Kyle Meier | Ephesians 6:1-4 | The Good Fight Topics: Conflict, Parenting, Children
Kyle Meier | Matthew 5:13-16 | The Good Fight Topics: Conflict, Grace, Light
Guest Preacher Brittany Absher-Baer | Galatians 6:1-5 | The Good Fight Topics: Conflict, Grace, Relationships
Kyle Meier | Acts 15:1-11 | The Good Fight Topics: Institutions, Conflict, Justice
Katie Distefano | Ephesians 4:1-7, 11-16 | Youth Sunday Topics: Discipleship, Service, Membership
Kyle Meier | Acts 10:1-5, 34-36, and 44-48 | Baptism Sunday Topics: Baptism, Love, New Life
Kyle Meier | Matthew 28:1-10 | Easter Topics: Easter, Resurrection, Belief
Kyle Meier | John 12:12-19 | Palm Sunday Topics: Palm Sunday, Salvation, Holy Week
Kyle Meier | Matthew 26:14-16, 20-25 | When Faith Falters Topics: Doubt, Judas, Betrayal
Kyle Meier | John 20:24-29 | When Faith Falters Topics: Doubt, Trust, Questioning
Kyle Meier | Genesis 12:10-20 | When Faith Falters Topics: Doubt, Discipline, Control
Guest Preacher Abby Muehlstein | Exodus 5:1-15 | When Faith Falters Topics: Self-Doubt, Identity, Calling
Kyle Meier | Matthew 14:22-33 | When Faith Falters Topics: Doubt, Science, Remembrance
Kyle Meier | Proverbs 16:1-9 | Miraculous Topics: Miracles, Guidance, Direction
Kyle Meier | Daniel 3:16-28 | Miraculous Topics: Miracles, Protection, Suffering
Kyle Meier | Matthew 7:7-11 | Miraculous Topics: Miracles, Provision, Prayer
Katie Distefano | Matthew 14:13-21 | Miraculous Topics: Miracles, Serve, Hunger
Kyle Meier | Luke 5:17-26 | Miraculous Topics: Healing, Intervention, Miracles
Kyle Meier | Psalm 46 | Miraculous Topics: Miracles, Intervention, Help
Kyle Meier | Luke 1:26-38 | Advent: A Promise Fulfilled Topics: Love, Incarnation, Marriage
Kyle Meier | Luke 1:46-55 | Advent: A Promise Fulfilled Topics: Joy, Happiness, Discipline
Katie Distefano | Isaiah 40:1-5, 10-11 | Advent: A Promise Fulfilled Topics: Grief, Loss, Peace
Kyle Meier | Mark 1:1-8 | Advent: A Promise Fulfilled Topics: Witness, Faith, Trust
Kyle Meier | Exodus 20:1-12 | Built Different Topics: Relationships, Family, Boundaries
Art Eddy and Julie Linville | Deuteronomy 6:5-9 | Built Different Topics: Parenting, Relationships, Learning
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Katie Distefano | Luke 7:36-40, 44-50 | Baptism Sunday Topics: Baptism, New Life, Faithfulness
Kyle Meier | Leviticus 16:1-5, 17 | You Lost Me at Leviticus Topics: Forgiveness, Reconciliation, Salvation
Kyle Meier | Leviticus 11:1-8 | You Lost Me at Leviticus Topics: Sacrifice, Rules, Right and Wrong
Kyle Meier | Leviticus 25:35-43 | You Lost Me at Leviticus Topics: Justice, Service, Law
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Eric Chancy and Katie Distefano | Proverbs 16:21-25 | What the Tech? Topics: Responsibility, Witness, Focus
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Kyle Meier | 1 Peter 4:8-10 | Committed Topics: Service, Engagement, Church
Kyle Meier | 2 Corinthians 9:7-9 | Committed Topics: Generosity, Giving, Gifts