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USGS Mineral News

sections Articles - September 2002 - Volume 1, Number 2
Articles
Staff News
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Newsletter Home, and link to USGS Minerals News home page.

Assessing the world's undiscovered nonfuel mineral resources: A cooperative international project

The U.S. Geological Survey (USGS) is conducting a cooperative international project to assess the world's undiscovered nonfuel mineral resources. The Global Mineral Resource Assessment Project (GMRAP) is a research project that will develop and test methods of assessing the undiscovered mineral resources of the terrestrial earth. [more]

Thumbnail of map showing regions for the Global Mineral Resource Assessment project and link to article about the project.

The USGS National Geochemical Database: A tool for environmental and resource management

USGS has been chemically analyzing samples of geologic material such as rocks, soils, and stream sediments since shortly after it was established in 1879. The National Geochemical Database oversees three data sets: RASS (Rock Analysis Storage System), PLUTO (named for the god of the underworld from classical mythology), and NURE (National Uranium Resource Evaluation Hydrogeochemical and Stream Sediment Reconnaissance Program). [more]

Thumbnail of map showing stream and sediment data in one of the National Geochemical Databases data sets and link to article about the National Geochemical Database.

New digital magnetic anomaly database of North America - processing, compilation and geologic mapping applications

A new, upgraded digital magnetic anomaly database and map for North American are the results of joint efforts of the Geological Survey of Canada (GSC), the U.S. Geological Survey (USGS), and Consejo de Recursos Minerales of Mexico (CRM). The integrated, readily accessible, modern digital database of magnetic anomaly data will be a powerful tool for evaluating the structure, geologic processes, and tectonic evolution of the continent and may also be used to help resolve societal and scientific issues that span national boundaries. [more]

Thumbnail image of new U.S. portion of the new North America Magnetic Anomaly map and link to article about the new map and dataset.

What's new in Alaska?

In April, 2002, the USGS opened its Alaska Science Center in Anchorage. The purpose of the center is provide greater focus on the wide array of USGS work being conducted in the state. USGS work in Alaska examines biologic, geologic, geographic and water resources, as well as geologic hazards such as earthquakes and volcanoes. The USGS Mineral Resources Program will continue it's long history of studying the mineral resources of Alaska under the auspices of the new Center. [more]

Thumbnail of shaded relief image of Alaska and link to article about U.S. Geological Survey mineral-related research in Alaska.

Borehole seismic and radar methods characterize fractured bedrock

The contamination of ground water caused by the leachate from mines and their tailings is a significant environmental issue for the minerals industry. Of particular importance is the behavior of leachate in fractured bedrock because the leachate in fractures may migrate at a high velocity. Thus, the first step in the isolation and remediation of contaminated ground water in bedrock is finding those fractures that have a high hydraulic conductivity. Some of this crucial information may be obtained with borehole seismic and radar methods. [more]

Thumbnail of a typical velocity image showing the spatial variation between two wells and link to article on borehole seismic and radar methods.

Minerals News from across the USGS

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