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GeOCHemISTea

Sam Scher
Geochemistry
Mineral Exploration
Remote Sensing
Mining
Pyrite Chemistry
Hyperspectral Data
Spectroscopy
Sample Preparation
Hyperspectral Core Imaging
Geochemical Exploration
Geometallurgy
Laser Ablation Icp-Ms
Microanalytical Techniques
Mining Industry
Sampling Techniques
Imex Consulting
US Geological Survey
Rock Crushing
Prostate Cancer Research
Environmental Science

Every geoscientist is capable of understanding and applying geochemical data, however, at GeocHemiSTea we understand that there is an incredible amount of nuance and accumulated knowledge. We are here to break down the impediments towards geoscientists learning more about this exciting field! Are you a student wanting to break into the field? Listen to each episode to see how reknown geochemists g... more

PublishesMonthlyEpisodes55Founded4 years ago
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ScienceEarth Sciences

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Latest Episodes

For Episode 51, the tables are turned as Imdex Chief Geologist and Technologist Dave Lawie takes over hosting duties and puts Sam in the hot seat.

Fresh from the SME Current Trends in Mining Finance conference in New York City, Dave and Sam discuss ... more

For our 50th episode of GeOCHemISTea, we’re doing something a little different... a panel discussion that brings together two very different perspectives on one deceptively simple problem: levelling geochemical data.

Joined by a government survey g... more

YouTube

In this episode of GeOCHemISTea, Sam sits down with Gabe Bowen to explore the world of forensic isotope geochemistry and the power of isoscapes.

From identifying where someone has lived, to reconstructing movement through hair and teeth, isotopes ar... more

YouTube

This episode of GeOCHemISTea explores cobalt cycling, critical metals, and why geochemists need to think beyond bulk chemistry to understand how elements behave in surface environments. Sam is joined by Owen Missen, lecturer in environmental geology ... more

YouTube

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Recent Guests

Sam Scher
Geoscientist, founder of LKI Consulting; hyperspectral expert; adviser and podcast guest
LKI Consulting
Episode: The Rocks Meet Wall Street with Dave Lawie & Sam Scher
Pedro Acosta-Gongora
Geochemist at the Geological Survey of Norway
Geological Survey of Norway
Episode: Data Levelling Panel with Pedro Acosta-Gongora & Tom Carmichael
Tom Carmichael
Mathematical geologist, co-founder of Datorac (now part of IMDEX)
IMDEX / Datorac
Episode: Data Levelling Panel with Pedro Acosta-Gongora & Tom Carmichael
Gabe Bowen
Professor of geology and geophysics at the University of Utah; director of the Spatiotemporal Isotope Analytics Lab and the Surfer Stable Isotope Facility
University of Utah
Episode: From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen
Owen Missen
Lecturer in environmental geology at the University of Tasmania; researcher with CODES
University of Tasmania; CODES
Episode: Beyond Bulk Geochemistry: Cobalt, Nanoparticles, and Surface Processes with Owen Missen
Simon Bolster
Exploration geoscientist, technologist, and advocate for fit-for-purpose geochemical methods.
Episode: Fit-for-Purpose Geochemistry and Fewer Bad Programs with Simon Bolster
Mohsen Yahyaei
Professor and Director of the Julius Krishnett Mineral Research Center
University of Queensland
Episode: From Geomet to the Mill: Breaking Down Silos with Mohsen Yahyaei
Mike Stock
Professor at Trinity College Dublin
Trinity College Dublin
Episode: Volcanoes, Mush, and Mineralization with Mike Stock
Scott Halley
Consulting geochemist with over 40 years of experience in mineral exploration.
Mineral Mapping
Episode: The mineralogy hidden in your assays with Scott Halley

Host

Sam Scherr
Host of GeochemISTea/Geochemist Tea (spelling variations merged)

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Talking Points

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The Rocks Meet Wall Street with Dave Lawie & Sam Scher
Q: What fundamental misunderstanding do financiers have about mining projects?
Financiers often treat resource models as fixed truths without accounting for the underlying geological processes, metallurgical realities, and processing constraints that can drastically change a project's economics.
From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen
Q: Could you walk us through why oxygen, hydrogen, and strontium are commonly used to investigate geographic origin, or if there are other systematics that you're using?
Oxygen and hydrogen reflect the water cycle and climate signals, giving broad geographic gradients that can distinguish large regions. Strontium reflects underlying geology and bedrock, offering a complementary, more local constraint. Together they provide a powerful two-layer approach to narrowing down origins, with other isotopes like sulfur providing additional context in coastal or dietary scenarios.
From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen
Q: Starting with the basics, could you explain what forensic isotope geochemistry is and what kinds of problems it's going to help solve?
Forensic isotope geochemistry translates isotopic signals from body tissues and materials into geographic or life-history information by using isotopes that record where a person has been or what they have consumed. It involves measuring isotopes in tissues, comparing them to reference maps (isoscapes), and assessing how different isotopes together constrain possible origins and movements.
Fit-for-Purpose Geochemistry and Fewer Bad Programs with Simon Bolster
Q: What does fit for purpose mean for you in practice, and where are explorers wasting money on assays that they don't need?
Fit for purpose means employing analytical techniques suited to the project's stage, assessing costs versus the need for high accuracy in early exploration stages.
Fit-for-Purpose Geochemistry and Fewer Bad Programs with Simon Bolster
Q: Can you tell our listeners a bit about your path into exploration and why regular sampling and practical geochemistry became your core focus?
I've been involved in gold exploration for about 40 years, starting from hands-on fieldwork, realizing sampling methods needed to adapt to the nature of the terrain.

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Frequently Asked Questions About GeOCHemISTea

What is GeOCHemISTea about and what kind of topics does it cover?

GeOCHemISTea focuses on the practical and nuanced world of geochemistry, bringing together seasoned practitioners, researchers, and industry professionals to discuss data handling, field workflows, and the integration of geochemical insights into mining, environmental remediation, and provenance studies. Episodes frequently spotlight data leveling and QA/QC in multi-lab datasets, isotope forensics and isoscapes, nanoscale surface processes in mining environments, fit-for-purpose geochemistry, and the interplay between geochemistry, mineral processing, and automation. A standout aspect is the hands-on, story-driven approach: hosts share real-world field experiences, lab challenges, and decisions that balance signal preservation with analytic... more

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Which podcasts are similar to GeOCHemISTea?

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1. The Northern Miner Podcast
2. Money of Mine
3. PlanetGeo: The Geology Podcast
4. Freakonomics Radio
5. The Economy, Stupid

How many episodes of GeOCHemISTea are there?

GeOCHemISTea launched 4 years ago and published 55 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on GeOCHemISTea?

Recent guests on GeOCHemISTea include:

1. Sam Scher
2. Pedro Acosta-Gongora
3. Tom Carmichael
4. Gabe Bowen
5. Owen Missen
6. Simon Bolster
7. Mohsen Yahyaei
8. Mike Stock

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