主题词：Geochemistry and Geologic Mapping; Heavy metals in environment; Geological and Geochemical Analysis; Geochemistry and Elemental Analysis; Mine drainage and remediation techniques; Hydrocarbon exploration and reservoir analysis; Soil Geostatistics and Mapping; Radioactive element chemistry and processing; Radioactivity and Radon Measurements; Mineral Processing and Grinding; earthquake and tectonic studies; Groundwater and Isotope Geochemistry; Geology and Paleoclimatology Research; Geophysical and Geoelectrical Methods; Metal Extraction and Bioleaching; Mercury impact and mitigation studies; Remote-Sensing Image Classification; Arsenic contamination and mitigation; Analytical chemistry methods development; Groundwater flow and contamination studies; Coal and Its By-products; Heavy Metal Exposure and Toxicity; X-ray Spectroscopy and Fluorescence Analysis; Geomagnetism and Paleomagnetism Studies; Mining and Resource Management