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National Surveys and Analysis - Alaska and Hawaii

Project Chief

Frederic (Ric) H. Wilson, 907-786-7448, fwilson@usgs.gov

Summary

The National Surveys and Analysis projects comprised an integrated effort to develop national digital datasets for geology, mineral occurrences, geochemistry, and geophysics. The project also integrated, analyzed, and interpreted these data in support of a wide variety of research topics such as: the assessment of mineral resources; characterization of regional mineral districts; definition of metallogenic provinces; determination of regional background values for chemical elements with known environmental impact; and the study of the relationship between toxic commodities or mining practices and human health. The interpretive studies involved contributions from a wide variety of disciplines and partners.

Strategy and Approach

The regional projects worked together to define common goals, set priorities, and ensure that products conformed to consistent standards and protocols. Previously collected data were reviewed for quality, consistency, and sample distribution, and areas needing new data collection were determined. Research was targeted in areas that would help establish and explain the regional frameworks within which tectonic, mineral deposit modeling, mineral exploration, land-use analysis, and other studies operate.

Alaska Accomplishments

Relevance and Impact

The U.S. Geological Survey provides national leadership in maintaining earth-science data and serves as earth-science advisor to the Executive Branch of the U.S. government. Recurring requests for information for scoping studies and earth-science forecasting can only be met when nationwide datasets are easily available and of high quality. In addition, national- and regional-scale earth-science datasets are critical for a wide range of land-planning, resource, and environmental issues. The data are used in State and Federal government agencies and academia, as well as by members of the general public.

The successful completion of this project results in a standard set of integrated GIS databases and interpretive products that address various earth-science issues. Maps and analyses produced from the databases provide information that can be used for mineral-resource assessments; environmental studies; regional and national land-use studies; and earth-science research, such as the identification of metallogenic terranes, determination of regional geochemical backgrounds, and the study of the relationships between toxic elements and human health. All data is available to both USGS researchers and the public. As national scale datasets become available, products will be created that are suitable for release through the Spatial Information Delivery project, and, as appropriate, the National Map.

Products and Publications

—Geology—

Geologic Map of the Wrangell-Saint Elias National Park and Preserve, Alaska
U.S. Geological Survey Scientific Investigations Map, SIM 2877 (2006).

The Togiak-Tikchik Complex of Southwestern Alaska—A Replacement for the Gemuk Group: Stratigraphic Nomenclature that has Outlived its Time
U.S. Geological Survey Scientific Investigations Report, SIR 2005-5019 (2005).

World Heritage Site - Bien du Patrimoine Mondial - Kluane/Wrangell-St. Elias/Glacier Bay/Tatshenshini-Alsek
U.S. Geological Survey Scientific Investigations Map, SIM 2819 (2004).

40Ar/39Ar Geochronology of Igneous Rocks in the Taylor Mountains and Dillingham Quadrangles in SW Alaska
U.S. Geological Survey Open-file Report, OFR 2003-421 (2003).

Surficial Geologic Map of parts of the Misheguk Mountain and Baird Mountains Quadrangles, Noatak National Preserve, Alaska
U.S. Geological Survey Open-file Report, OFR 2003-367 (2003).

Preliminary Geologic Map of the Northeast Dillingham Quadrangle (D-1, D-2, C-1, and C-2), Alaska
U.S. Geological Survey Open-file Report, OFR 2003-105 (2003).

Surficial Geologic Map of the Bettles Quadrangle, Alaska
U.S. Geological Survey Miscellaneous Field Studies Map, MF-2409 (2002).

Surficial Geologic Map of the Hughes Quadrangle, Alaska
U.S. Geological Survey Miscellaneous Field Studies Map, MF-2408 (2002).

A Geologic Guide to Wrangell-Saint Elias National Park and Preserve, Alaska—A Tectonic Collage of Northbound Terranes
U.S. Geological Survey Professional Paper 1616 (2000).

Reconnaissance Bedrock Geology of the Southeastern Part of the Kenai Quadrangle, Alaska
U.S. Geological Survey Professional Paper 1615, p.59-63 (2000).

Geologic Map of the Christian Quadrangle, Alaska
U.S. Geological Survey Open-file Report, OFR 2000-192 (2000).

—Preliminary Integrated Geologic Map Databases—

Preliminary Bedrock Geologic Map of the Seward Peninsula, Alaska, and Accompanying Conodont Data
U.S. Geological Survey Open-File Report, OFR 2009-1254 (2010).

Digital Data for the Geology of the southern Brooks Range, Alaska
U.S. Geological Survey Open-File Report, OFR 2008-1149 (2008).

Digital Data for the Reconnaissance Geologic Map for Prince William Sound and the Kenai Peninsula, Alaska
U.S. Geological Survey Open-File Report, OFR 2008-1002 (2008).

Digital Data for the Reconnaissance Geologic Map for the Kuskokwim Bay Region of Southwest Alaska
U.S. Geological Survey Open-File Report, OFR 2008-1001 (2008).

Digital Data for the Generalized Bedrock Geologic Map, Yukon Flats Region, East-central Alaska
U.S. Geological Survey Open-File Report, OFR 2006-1304 (2006).

Digital Data for the Reconnaissance Bedrock Geologic Map for the Northern Alaska Peninsula Area, Southwest Alaska
U.S. Geological Survey Open-File Report, OFR 2006-1303 (2006).

Digital Data for the Reconnaissance Geologic Map of the Western Aleutian Islands, Alaska
U.S. Geological Survey Open-File Report, OFR 2006-1302 (2006).

Digital Data for the Reconnaissance Geologic Map of the Lower Yukon River Region, Alaska
U.S. Geological Survey Open-File Report, OFR 2006-1292 (2006).

Digital Data for the Geology of Southeast Alaska by George E. Gehrels and Henry C. Berg
U.S. Geological Survey Open-File Report, OFR 2006-1290 (2006).

Digital Data for the Geology of Wrangell-Saint Elias National Park and Preserve, Alaska
U.S. Geological Survey Open-File Report, OFR 2005-1342 (2005).

Digital Data for the Reconnaissance Geologic Map of the Yukon-Koyukuk Basin, Alaska
U.S. Geological Survey Open-File Report, OFR 2005-1341 (2005).

Digital Data for the Reconnaissance Geologic Map of the Kodiak Islands, Alaska
U.S. Geological Survey Open-File Report, OFR 2005-1340 (2005).

Digital Data for the Geologic Framework of the Alaska Peninsula, Southwest Alaska, and the Alaska Peninsula Terrane
U.S. Geological Survey Open-File Report, OFR 99-317 (1999).

Geologic map of Central (Interior) Alaska
U.S. Geological Survey Open-File Report, OFR 98-133-A (1998).

—Mineral Occurrences—

For mineral occurrence information in Alaska, please see the Alaska Resource Data File project and the Alaska Resource Data File website.

—Geochemistry—

Geochemical and Sulfur-Isotopic Signatures of Volcanogenic Massive Sulfide Deposits on Prince of Wales Island and Vicinity, Southeastern Alaska
U.S. Geological Survey Professional Paper 1732-C (2007).

National Geochemical Survey—Database and Documentation
U.S. Geological Survey Open-File Report 2004-1001 (2004; updated in 2006, 2007, 2008).

National Geochemical Database—U.S. Geological Survey RASS (Rock Analysis Storage System) Geochemical Data for Alaska
U.S. Geological Survey Open-File Report 99-433, version 2.0 (2000).

—Geophysics—

Aeromagnetic Survey of Taylor Mountains Area in Southwest Alaska—A Website for the Distribution of Data
U.S. Geological Survey Data Series 224 (2006).

Aeromagnetic Survey of Dillingham Area in Southwest Alaska—A Website for the Preliminary Distribution of Data
U.S. Geological Survey Open-file Report, OFR 2006-1136 (2006).

Alaska Digital Aeromagnetic Database Description
U.S. Geological Survey Open-file Report, OFR 99-0503 (1999).

Alaska Aeromagnetic Compilation—Digital Grids and Survey Data
U.S. Geological Survey Open-file Report, OFR 99-0502 (1999).

Building a Magnetic View of Alaska
U.S. Geological Survey Open-file Report, OFR 99-0418 (1999).

Merged Aeroradiometric Data for Alaska—A Web Site for Distribution of Gridded Data and Plot Files
U.S. Geological Survey Open-file Report, OFR 99-0016 (1999).

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