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Alaska Geology GIS — Databases and Information Analysis

Project Chief

Nora B. Shew, 907-786-7445, nshew@usgs.gov

Summary

This project is designed to assist Alaskan Geology research projects by building digital geoscience data sets for analysis, distribution, and publication. Geographic Information Systems (GIS) technology is a valuable asset for storing, analyzing, and displaying various types of data in a geographic framework. However, the complexity of the technology can be a burden to individual projects, diverting staff and funds away from basic research responsibilities. The Alaska GIS project centralizes GIS capabilities and supports all GIS needs of the Alaska Science Center's Geology office. This not only includes the creation, delivery, and maintenance of regional spatial geoscience data sets, but also assistance in spatial analyses of the data.

Objectives

Relevance and Impact

Production and distribution of usable digital data sets and map products are important aspects of the Mineral Resources Program. The Alaska GIS project creates and delivers digital data sets upon which USGS customers can perform complex computer analyses. The data sets produced can be used by a wide range of internal and external users of regional-scale geologic information. The data sets are standardized structurally so that individual data sets can be combined to build regionial or statewide data sets. In addition, the compiled standardized data sets will enhance the Program's ability to access and analyze mineral-resource data.

Strategy and Approach

The main goal of this task is to build regional geoscience digital data sets for Alaska that are accurate, easily accessible, and support the analytical and digital infrastructure needed to conduct business. The digital data must be made available to users as products that are timely, accurate, and easy to locate and access. Strategies include conferring with research scientists to determine which digital data a project needs, digitizing exisiting geologic maps to create standardized geospatial data sets, and providing geospatial analyses of collected data to individual projects. Completed data sets and metadata are published online.

Tasks

  1. Design databases and develop templates that can capture a variety of geospatial data.
  2. Create and maintain geospatial data sets.
  3. Produce and document metadata that is compliant with guidelines of the Federal Geographic Data Committee.
  4. Prepare geospatial digital data sets for publication.

Products

The Alaska GIS project provides GIS support and products for Alaska minerals research projects and generally does not generate products independently. However, the project contributes to the Spatial Data Delivery project, whose goal is to make regional minerals-related data available to internal users and the public via the World Wide Web. Numerous data sets have been posted, and users are able to develop their own products from the data. A number of maps have also been published.

—Preliminary Integrated Geologic Map Databases—

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.

—Additional Products—

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).

Geologic map of the Christian quadrangle, Alaska
U.S. Geological Survey Open-File Report, OFR 00-192 (2000).

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).

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Last Modified: 13 December 2016