Geologic Map and Digital Database of the Bachelor Mountain 7.5' Quadrangle, Riverside County, California
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INTRODUCTION Open-File
Report 03-102 contains a digital geologic map database of the Bachelor
Mountain 7.5’ quadrangle, Riverside County, California that includes: The Correlation
of Map Units and Description of Map Units is in the editorial format of
USGS Geologic Investigations Series (I-series) maps but has not been edited
to comply with I-map standards. Within the geologic map data package,
map units are identified by standard geologic map criteria such as formationname,
age, and lithology. Where known, grain size is indicated on the map by
a subscripted letter or letters following the unit symbols as follows:
lg, large boulders; b, boulder; g, gravel; a, arenaceous; s, silt; c,
clay; e.g. Qyfa is a predominantly young alluvial fan deposit that is
arenaceous. Multiple letters are used for more specific identification
or for mixed units, e.g., Qfysa is a silty sand. In some cases, mixed
units are indicated by a compound symbol; e.g., Qyf2sc. Even though
this is an Open-File Report and includes the standard USGS Open-File disclaimer,
the report closely adheres to the stratigraphic nomenclature of the U.S.
Geological Survey. Descriptions of units can be obtained by viewing or
plotting the .pdf file (3b above) or plotting the postscript file (2 above).
This Readme file describes the digital data, such as types and general
contents of files making up the database, and includes information on
how to extract and plot the map and accompanying graphic file. Metadata
information can be accessed at http://geo-nsdi.er.usgs.gov/metadata/open-file/03-102
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Learn more about the Bachelor Mountain data set and its contents
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| This illustration is a .jpg (JPEG) non-navigable image of the USGS geologic-map plot of the Romoland quadrangle. A full-size, navigable map graphic can be viewed on-screen (bch_map.pdf ) or can be plotted from the PostScript file (bch_map.ps.gz). Note: the full-size plot requires a large-format plotter, and is best reproduced at 600 (or greater) dpi. |
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File
Name
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File
Type and Description
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File
Size
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README's
and METADATA
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| Text version of readme file that explains how to use the digital database |
44 Kb
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| PDF version of the readme file that explains how to use the digital database. |
180 Kb
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| Text file of the FGDC-compliant metadata |
28 Kb
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DATA
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| Compressed tar file of the digital database for this map |
2.1 MB
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FILES
for VIEWING and PLOTTING
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Compressed
(gzip) PostScript file used for plotting a paper copy of the map
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3.5 MB
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| PDF file of map sheet that can be used for viewing map in a browser, as well as for plotting |
5.5
MB
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| Compressed tar file of the shade, line, and marker sets used to produce optimum plot of this map |
44
Kb
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Visit the GeoScience Node of the National Spatial Data Clearinghouse to find other geologic-map datasets in southern California or elsewhere in the Nation
Download a free copy of Adobe Acrobat Reader
For questions about the content of this report, contact Doug Morton
This report is only available on the web
URL of this page:
http://geopubs.wr.usgs.gov/open-file/of03-103/
Maintained by: Carolyn Donlin
Created: 3/27/03
Last modified: 8/29/03 (cad)