主题词：Groundwater and Isotope Geochemistry; Marine and coastal ecosystems; Mine drainage and remediation techniques; Geology and Paleoclimatology Research; Geochemistry and Elemental Analysis; Heavy metals in environment; Groundwater flow and contamination studies; Hydrocarbon exploration and reservoir analysis; Methane Hydrates and Related Phenomena; Radioactive element chemistry and processing; Isotope Analysis in Ecology; Marine Biology and Ecology Research; Calcium Carbonate Crystallization and Inhibition; Geochemistry and Geologic Mapping; Aquatic Ecosystems and Phytoplankton Dynamics; Soil and Water Nutrient Dynamics; Ocean Acidification Effects and Responses; Water Quality and Pollution Assessment; Paleontology and Stratigraphy of Fossils; Chemical and Physical Properties in Aqueous Solutions; Arsenic contamination and mitigation; Mercury impact and mitigation studies; Karst Systems and Hydrogeology; CO2 Sequestration and Geologic Interactions; Atmospheric and Environmental Gas Dynamics