Episode Archive - GeOCHemISTea Podcast

From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen

GEOCHEMISTEA

From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen

00:00 / 00:46:53

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

GEOCHEMISTEA

Beyond Bulk Geochemistry: Cobalt, Nanoparticles, and Surface Processes with Owen Missen

00:00 / 00:55:30

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.

GEOCHEMISTEA

Fit-for-Purpose Geochemistry and Fewer Bad Programs with Simon Bolster

00:00 / 1:16:08

Simon Bolster joins GeOCHemISTea to unpack what actuallymakes near-surface geochemistry work in mineral exploration: understanding regolith and landforms before you ever “put dirt in bags.” With four decades in gold exploration, Simon argues that many programs fail not because geochemistry is “bad,” but because sampling and analytical choices do not match the terrain,the cover, or

GEOCHEMISTEA

From Geomet to the Mill: Breaking Down Silos with Mohsen Yahyaei

00:00 / 1:07:08

This episode discusses how artificial intelligence is transforming research and education, exploring practical applications, opportunities and challenges across academic and scientific fields.

GEOCHEMISTEA

Volcanoes, Mush and Mineralization with Mike Stock

00:00 / 1:00:10

In this episode of GeOCHemISTea, Sam talks with Mike Stock, Professor at Trinity College Dublin, about magma systems from eruption to emplacement.

GEOCHEMISTEA

The mineralogy hidden in your assays with Scott Halley

00:00 / 1:00:47

This month on GeOCHemISTea, Sam sits down with Scott Halley to talk about extracting meaningful mineralogy from standard four-acid assay data.

GEOCHEMISTEA

Geochemistry Without Borders: A Conversation with Alecos Demetriades

00:00 / 00:53:27

Alecos Demetriades, applied geochemist and Chair of the IUGS Commission on Global Geochemical Baselines (2024–2028)

GEOCHEMISTEA

Geochemical exploration in low sulfidation epithermal systems with Simon Griffiths

00:00 / 00:56:06

Simon Griffiths breaks down geochemical strategies for low-sulfidation epithermal systems, roscoelite vectors, sampling workflows, and real-world exploration lessons from Porgera.

GEOCHEMISTEA

From Sardis to the lab: a gold assay deep dive with Hugh De Souza

00:00 / 00:58:59

Hugh De Souza traces gold analysis evolution from fire assay to photon assay, sharing lab experience, physics insights, and perspectives.

GEOCHEMISTEA

Fine Fractions & Big Discoveries: A Deep Dive into Drainage Geochem with Mary Doherty

00:00 / 00:53:27

Mary Doherty discusses stream sediment geochemistry fundamentals, evolving methods, QA/QC, and how modern tools shape effective mineral exploration workflows.