Geologic Map and Digital Database of the House Rock Spring Quadrangle, Coconino County, Northern Arizona
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https://cmr.earthdata.nasa.gov/search/concepts/C2231553061-CEOS_EXTRA.html
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资源简介：
The digital map database, compiled from previously published and unpublished
data, and new mapping by the authors, represents the general distribution of
bedrock and surficial deposits in the House Rock Spring area. Together with
the accompanying text, it provides current information on the geologic
structure and stratigraphy of the area covered. The database delineates map
units that are identified by general age, lithology, and geomorphology
following the spatial resolution (scale) of the database to 1:24,000. The
content and character of the database, as well as three methods of obtaining
the database, are described below.
This digital map database is compiled from unpublished data and new mapping by
the authors, represents the general distribution of surficial and bedrock
geology in the mapped area. Together with the accompanying pamphlet, it
provides current information on the geologic structure and stratigraphy of the
area. The database delineate map units that are identified by age and
lithology following the stratigraphic nomenclature of the U.S. Geological
Survey. The scale of the source maps limits the spatial resolution of the
database to 1:24,000 or smaller.
This report consists of a set of geologic map database files (ARC/ INFO
coverages) and supporting text and plot files. In addition, the report
includes two sets of plot files(Post Script and PDF format) that will generate
map sheets and pamphlets similar to a traditional USGS Miscellaneous Field
Studies Report. These files are described in the explanatory pamphlets
(hrsgeo.doc, hrsgeo. pdf, or hrsgeo.txt). The base layer used in the
preparation of the geologic map plot files was derived from a Digital Raster
Graphic version of a standard USGS 7.5' quadrangle. This raster image was
converted to Grid format in ARC/INFO, trimmed and converted to a GeoTIFF image.
The resultant TIFF image was combined with geologic data to produce the final
map image in Illustrator 8.0.
提供机构：
CEOS_EXTRA
