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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 he... more
FAQs about GeOCHemISTea:How many episodes does GeOCHemISTea have?The podcast currently has 45 episodes available.
October 09, 2024Upscaling pyrite chemistry with 4-acid data with Aidan KitchenerLet's learn about upscaling LA-ICP-MS pyrite results to whole rock geochemistry data using PCA. On the way we'll hear about the life and times of an early career geochemist and some of the ins and outs of being a geochemical consultant. For this episode we read:Using whole rock and in situ pyrite chemistry to evaluate authigenic and hydrothermal controls on trace element variability in a Zn mineralized Proterozoic subbasin (Magnall et al., 2022)...more37minPlay
September 11, 2024Geochemical exploration for greenstone gold deposits with Simon GriffithsFor this episode we read: Archean Lode Gold Deposits in Ontario (Colvine et al., 1984) aka the Greenstone Bible.We talk about Simon's transition from working from large mining companies to opening his own consultancy for all those considering this as part of their future. Our tea... have you ever been late to your flight, anxious on the shores of Lake Victoria, Tanzania? As for the heart of the show? We talk about the applications of geochemistry to greenstone gold exploration. This one is dedicated to the fans of the show in Dubreuilville (Canada) who wanted some extra insight on geochemistry in greenstones. I hope you enjoy this one! ...more46minPlay
August 14, 2024Seeing porphyries in a new light with Cristal PalafoxThis is our second episode on GeOCHemISTea where we have branched out from geochemistry into a sister geoscience - spectral geology. For this episode take a look at another of the spectral ecosystem's end-members: hyperspectral core imaging.Join us as we talk about hyperspectral imaging, the data load, and some interesting applications to porphyry geoscience. For this episode we read: Hyperspectral Core Imaging Applications in Porphyry Deposits (Corescan)...more27minPlay
July 10, 2024Analytical Geochemists & Instrumentation with Alan KoenigHerein we present a general microanalytical technique rant, at least three soap boxes (my favorite being "I want to also rant about bulk chemistry techniques and why if these techniques are “so routine” that we still have some labs that suck at understanding (or respecting) how to do basic chemistry well"), and the story of how a geologist with a graduate degree in geochemistry found themself crushing rocks at the USGS and living in both Omaha, Nebraska and ::shudder:: Newark, New Jersey. If you are an aspiring analytical geochemist or generally have questions / concerns about analytical techniques... this episode is for you!In lieu of a paper we looked at some notes from a short course that Alan presented in 2016 on LA-ICP-MS. ...more1h 7minPlay
June 12, 2024The future of remote sensing in exploration with Sam CasementThis is our first episode on GeOCHemISTea where we have branched out from geochemistry into a sister geoscience - spectral geology. For this episode we start from one of the spectral ecosystem's end-members: remote sensing, or satellites and airborne. Join us as we talk about the newest developments in sensor tech and data processing, while still paying proper attention to the role of remote sensing in the mining value chain. For this episode we read:Improvements in Mineralogical Classification with Increased Spectral Resolution: A Case Study over Cuprite, Nevada comparing Fused Bare Earth Composite and EnMAP Data (Wickert and Casement, 2024)Hyperspectral Imaging for Mining: EnMAP Satellite Data versus SpecTIR Airborne Data (Wickert and Casement, 2024)And we'd like to give a shout out to @LucaCongedoGIS on YouTube who we referenced numerous times in the podcast as the "Italian guy." You are a legend! ...more58minPlay
May 08, 2024Outtakes with Rob BowellWant to hear some more of Rob's thoughts? But also just general silliness from before we started to record? Enjoy! ...more13minPlay
May 08, 2024Geochemistry, nature's gift to mine closure with Rob BowellFor this episode we read Rob's paper: Natural attenuation in the vadose zone: Nature's gift to mine closure (Bowell, 2023)From rethinking the green economy to recovering metals and ores in naturally occurring ways, this episode encompasses a lot of topics currently in the news but a uniquely Rob perspective. Along the way, we may even learn about the vadose zone and the potential to remediate sites naturally. ...more1h 14minPlay
April 10, 2024Sensor and method selection with Ben ChiAt GeOCHemISTea we love it when someone is so passionate about their geochemistry topic that they reach out and request(!!) to be on the show. An honor, Ben! So what ground did we cover... manifest your own destiny (or was that the US in the 1800s?). Ben has been a geochemist, a geophysicist, and a data scientist; there's lots of nuggets in there for young geos who are looking for the how-to... so how did Ben become a geochemist? Our topic of interest this month was to talk about methodology selection to solve geochemical, geometallurgical, and dare I say geophysical situations that arise during the course of exploration and mining programs... and dare I say... Ben has a lot of opinions, advice and ideas on the matter! For this episode we read: Characterization of Ore Properties for Geometallurgy (Butcher et al., 2023) ...more1h 9minPlay
March 13, 2024Head in the Clouds, Feet in the Data with Britt BluemelFor this episode we read: Using machine learning to estimate a key missing geochemical variable in mining exploration: application of the Random Forest algorithm to multi-sensor core logging data (Schnitzler et al., 2019) A big difference between applied geochemistry and machine is the terminology, but once you start to chip away at this, like Britt, you will realize that the two disciplines are not so different. Join us as we talk about dimensionality reductions, transformations, and workflows pre- and post- her introduction to the realm of data science. And talk about a really neat paper that used random forest to predict sodium for an alteration study. ...more47minPlay
February 14, 2024Luminescence in Exploration with Sam CantorFor this episode we read a chapter from Sam Cantor's thesis entitled: Exploration Tool: Tracking Cryptic Alteration Surrounding the Iscaycruz Zn (Pb-Cu-Ag) Skarn-CRD Deposit, Central Peru (Cantor, 2020) Have you implemented UV lamps into your exploration programs to help try and sort out complex mineralogy and vein paragenesis? Sam Cantor explains his side hustle at the Mineral Deposits Research Unit at the University of British Columbia, where he was able to start to build out workflows to tackle this in a complex skarn and carbonate replacement deposit in Peru. If this has not yet peaked your interest, perhaps come for the tea where he talks about his role as a green junior geologist in Nicaragua using hyperspectral to overturn high sulfidation epithermal mineral identifications using the field geologist's tried and true method of tasting minerals :)...more46minPlay
FAQs about GeOCHemISTea:How many episodes does GeOCHemISTea have?The podcast currently has 45 episodes available.