geokeemilisi

Geokeemilisi is the study and application of geochemical methods to analyze chemical composition and processes in Earth materials. It encompasses the measurement of element abundances in rocks, minerals, soils, waters, and biological materials to understand geological evolution and environmental interactions. The field integrates chemistry with geology to interpret how elements move, concentrate, and alter materials over time.

The scope includes identifying source rocks and ore deposits, tracing environmental pollutants, and reconstructing past geological, climatic, and tectonic events. Geokeemilisi also supports environmental assessment and resource management by assessing contamination, nutrient cycles, and groundwater chemistry. Isotopic analyses and trace-element studies help distinguish different source contributions and weathering histories.

Common techniques involve careful sampling and preparation, followed by analytical methods such as X-ray fluorescence (XRF) for elemental concentrations, inductively coupled plasma methods (ICP-OES and ICP-MS) for trace elements, and stable isotope ratio analysis. Non-destructive approaches, field-portable XRF, and imaging techniques like SEM-EDS may also be used. Data interpretation relies on normalization and enrichment calculations, mineralogical context, and geochemical modeling to infer processes such as magma differentiation, sedimentation, weathering, and ore-forming events.

Geokeemilisi is widely applied in mineral exploration, environmental monitoring, hydrogeology, and archaeological studies, among others. It is closely related to geochemistry, environmental geochemistry, isotope geochemistry, and related Earth-science disciplines.