Spatial Databases for the Geology of the Northern Rocky Mountains, Idaho, Montana, and Washington: USGS Open-File Report 2005-1235 by U. S. Department of the Interior, United

Spatial Databases for the Geology of the Northern Rocky Mountains, Idaho, Montana, and Washington: USGS Open-File Report 2005-1235 (Paperback) (ISBN-13: 9781288734894)

Vendor: United U. S. Department of the Interior
Product type: Books
Format: Paperback
$24.75
$24.75
$24.75
Subtotal: $24.75
Spatial Databases for the Geology of the Northern Rocky Mountains, Idaho, Montana, and Washington: USGS Open-File Report 2005-1235 by U. S. Department of the Interior, United

Spatial Databases for the Geology of the Northern Rocky Mountains, Idaho, Montana, and Washington: USGS Open-File Report 2005-1235

$24.75
Spatial Databases for the Geology of the Northern Rocky Mountains, Idaho, Montana, and Washington: USGS Open-File Report 2005-1235 by U. S. Department of the Interior, United

Spatial Databases for the Geology of the Northern Rocky Mountains, Idaho, Montana, and Washington: USGS Open-File Report 2005-1235

$24.75
Format: Paperback
Description
Description
x
A regionally consistent and integrated geologic spatial database for the Northern Rocky Mountains of Montana, Idaho, and eastern Washington, brings together forty-three 1:100,000- to 1:250,000-scale digital geologic maps into a common database format. The regional geologic database is an ArcInfo coverage (NR_GEO) that contains spatial data for both lines (contacts, faults, fold axes, dikes, sills, veins, garnet isograd, boundaries) and polygons (geologic units). The database represents the original content of the published maps and provides easily used and consistent attribute content. We have also added information based on our interpretations of published reports. In particular, we have added attribute information that 1) classifies igneous rocks by age, composition, and name, and 2) allows the creation of derivative maps based on lithology.

Three schemes are used to classify polygons and lines in this spatial database. The first scheme is based on the original map units defined in the source maps used to compile this database. The second approach uses the age, composition, and mode of occurrence to define igneous map units. The last approach uses the names of igneous intrusions and volcanic units to define map units.

This database can be queried to address an assortment of geological questions and to produce a variety of derivative geological maps. Digital themes derived from these digital spatial geologic databases will be used by the U.S. Department of Agriculture Forest Service (USFS) for planning and research purposes and by the U.S. Geological Survey (USGS) to facilitate research and conduct mineral-resource assessments.

Author: United U. S. Department of the Interior,Michael L. Zientek
ISBN-10: 1288734891
ISBN-13: 9781288734894
Publisher: Bibliogov
Language: English
Published: 02/08/2013
Pages: 210
Format: Paperback
Weight: 0.85lbs
Size: 9.69h x 7.44w x 0.44d

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