Chemical elements and element groups
Characterizing contaminant concentrations with depth by using the USGS well profiler in Oklahoma, 2003-9 [ More info] Use of specialized sampling equipment to study public water supply wells, with examples showing Arsenic in two aquifers.
China's rare-earth industry [ More info] Reviews production, consumption, and reserves and important policies and regulations regarding production and trade of rare earths, including recently announced export quotas.
Chloride control and monitoring program in the Wichita River Basin, Texas, 1996-2009 [ More info] Chloride concentrations in this river have historically been high due to natural saltwater springs and seeps from geologic formations. We monitor the water to help assess the progress of human efforts designed to mitigate this problematic salinity.
Chromium makes stainless steel stainless [ More info] Explains how we use chromium, the types of mineral deposits in which we find it, and the economic factors affecting supply and demand of this commodity.
Cobalt-For strength and color [ More info] Explains how we use cobalt, where it comes from, and whether we have enough available.
Conflict minerals from the Democratic Republic of the Congo--Gold supply chain [ More info] Describes the source and processing of this commodity, with special emphasis on countries where armed groups are involved in the supply chain.
Conflict minerals from the Democratic Republic of the Congo: global tantalum processing plants, a critical part of the tantalum supply chain [ More info] Describes how tantalum is produced for the global economic market, including a list of the processing plants generating industrial tantalum products.
Conflict minerals from the Democratic Republic of the Congo: global tungsten processing plants, a critical part of the tungsten supply chain [ More info] Information about tungsten processing plants to help identify risks associated with the supply of this strategic resource and support decision making related to mineral supply.
Conflict minerals from the Democratic Republic of the Congo: tin processing plants, a critical part of the tin supply chain [ More info] Describes the production and processing of tin with emphasis on the potential of the Democratic Republic of the Congo. Includes a list of tin refineries and smelters worldwide.
Copper - A Metal for the Ages [ More info] Sources, uses, and patterns of consumption of copper worldwide
Corals as climate recorders [ More info] Shows how coral reef specimens are collected, the type of information gained from them, and the methods by which they are measured and studied to understand recent (past few centuries) changes in climate.
Emissions from Coal Fires and Their Impact on the Environment [ More info] Reviews how coal fires occur, how they can be detected by airborne and remote surveys, and, most importantly, the impact coal-fire emissions may have on the environment and human health, especially mercury, carbon dioxide, carbon monoxide, and methane.
Environmental effects of historical mining in the Animas River watershed, southwestern Colorado [ More info] History and summary maps showing metal concentrations downstream of the mining area.
Environmental mercury mapping, modeling, and analysis [ More info] Online tools for mapping mercury data in the environment, with downloadable data from monitoring studies
Estimate of undiscovered copper resources of the world, 2013 [ More info] We estimated a mean of 3,500 million metric tons (Mt) of undiscovered copper among 225 tracts around the world using a geology-based assessment methodology.
Flow studies for recycling metal commodities in the United States [ More info] What happens to all the scrap metal? How well does recycling work? This guide explains what we know about the overall processes of recycling various metals.
Gallium--A smart metal [ More info] Usefulness and characteristics of this mineral commodity.
Geochemical and mineral maps from soils of the conterminous United States [ More info] Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801
Geochemical sediment analysis procedures [ More info] Manual of chemical sediment analysis using Coulometer and CHN Analyzers to measure carbon content, spectrometric analysis for biogenic silica, and radiochemistry to measure isotopes. Includes techniques,sample preparation, and safety procedures.
Geologic studies of mercury [ More info] Collection of six short papers related to the mercury geochemical society, the study of mercury in coal, concentrations in sediment, soil, water, and fish collected near mercury and gold mines, and volanic emissions of mercury.
Alphabetical Index of Topics
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