A space to discuss aspects of the Caribbean geology, ore potential of the ophiolite belts, etc.
Thursday, September 25, 2025
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#valls_geoconsultant #GeochemistCareer #GeochemicalAnalysis #ExplorationGeology
Geochemist career: from natural gas to ICP-MS limits.
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Discover the real Geochemist career and the essential Analytical methods they use, from field Sample preparation of natural gas or rock samples to advanced Geochemical analysis techniques like ICP-MS and ICP-ES. Exploration geology and Environmental geology rely heavily on modern Geochemical software for Reactive transport and PHREEQC modeling, which allows researchers to predict chemical reactions and model complex processes over time and space. A Geochemist frequently utilizes Mass spectrometry (ICP-MS) due to its superior sensitivity, achieving instrumental detection limits down to 0.1 ppt in solution across a wide range of elements, making it ideally suited for ultratrace geochemical methods. Before analysis, solids often require decomposition, such as the aggressive, highly oxidizing Aqua Regia digest, although this method results in varied element recoveries (e.g., Al ranging 13-46% and Zn 71-100% across CRMs). Alternatively, non-destructive XRF offers a fast method, particularly field-portable XRF, useful for total elemental composition and whole-rock analysis, although its detection limits (typically in the ppm range) are less sensitive than ICP-MS.
In addition to lab work, the Geochemist career involves extensive Fieldwork techniques, requiring skills like comprehensive Geological mapping, keeping a meticulous Field notebook, utilizing a Silva compass-clinometer for measurements, and correctly performing Sedimentary logging. Roles within Mining geology and Structural geology demand critical thinking and data analysis skills to integrate field observations with advanced modeling software, such as using Geochemical software for Mineral solubility calculations in hydrogeochemistry applications. Aspiring geologists and Geochemist professionals must combine these analytical and fieldwork competencies to successfully navigate modern Geologist jobs.
The bridge between Academy and Industry!
P. Geo. Ricardo A Valls, M. Sc. and Geo Gadfly
Valls Geoconsultant
ORCID ID- https://orcid.org/0000-0002-5421-0914
Scopus Author ID: 7003369619/35335510700
ResearcherID: S-6604-2018
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