GEOCHEMISTEA

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

GEOCHEMISTEA — Wed, 15 Apr 2026 23:20:46 +0000

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

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

GEOCHEMISTEA — Wed, 18 Mar 2026 22:15:41 +0000

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.

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

GEOCHEMISTEA — Fri, 20 Feb 2026 02:19:04 +0000

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

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

GEOCHEMISTEA — Thu, 22 Jan 2026 05:12:00 +0000

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

Volcanoes, Mush and Mineralization with Mike Stock

GEOCHEMISTEA — Mon, 22 Dec 2025 22:32:32 +0000

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

The mineralogy hidden in your assays with Scott Halley

GEOCHEMISTEA — Tue, 18 Nov 2025 22:00:19 +0000

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

Geochemistry Without Borders: A Conversation with Alecos Demetriades

GEOCHEMISTEA — Thu, 16 Oct 2025 03:05:19 +0000

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

Geochemical exploration in low sulfidation epithermal systems with Simon Griffiths

GEOCHEMISTEA — Wed, 10 Sep 2025 01:38:44 +0000

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

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

GEOCHEMISTEA — Wed, 13 Aug 2025 05:16:40 +0000

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

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

GEOCHEMISTEA — Wed, 09 Jul 2025 05:21:41 +0000

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