Geologic Map of the Devore 7.5' quadrangle, San Bernardino County, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/01-173/metadata.faq.html
Description This data set maps and describes the geology of the Devore 7.5' quadrangle, San Bernardino County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage co
Originators Morton, Douglas M. and Matti, Jonathan C.
Publication U.S. Geological Survey Open-File Report 01-173

Related topics

States or counties

Overview of attributes

Version 1.0 of the Devore 7.5' quadrangle comprises three ARC/INFO coverages, of which
two contain geologic data and one contains cartographic features: devre_geo (geology),
devre_str (structural point data), and devre_ldr (annotation leaders).  Line and point
identities are recorded in the .aat and .pat tables using a system of identity codes.
Two INFO tables, lines.rel and points.rel provide a full description of each of the
geologic line and point codes in the database.  A full source citation is provided in
the Entity_and Attribute_Detail_Citation section of this metadata document.
Geologic data represented by line entities and the polygons they delineate are contained
in the coverage DEVRE_GEO.  For display purposes, the geology coverage contains two
annotation subclasses: anno.geo contains unit labels, and anno.fault contains formal,
fault names.
Geological point data includes site-specific information describing the types and the
orientation of bedding, foliation, and lineations. One annotation subclass is included
in the geologic points coverage, DEVRE_STR: anno.dip displays the respective dip and
plunge values associated with individual point data.

A complete description of the polygon, line, and point data coding schemes is available in U.S. Geological Survey Open-File Reports OFR 97-859, OFR 97-860, and OFR 97-861 (full source citations follow): Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., Bunyapanasarn, T.P., Koukladas, Catherine, Hauser, R.M., and Cossette, P.M., 1997b, Geologic-point attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-859 Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., and Cossette, P.M., 1997c, Geologic-polygon attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-860 Matti, J.C., Powell, R.E., Miller, F.K., Kennedy, S.A., Ruppert, K.R., Morton, G.L., and Cossette, P.M., 1997a, Geologic-line attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-861

devre_geo.pat

Geologic units (LABL) and their corresponding names (NAME) identified in the Devore 7.5'quadrangle

Label Definition
SHDPS polygon color (as integer value) from shadeset scamp2.shd (included in the data package)
SHDFIL polygon fill pattern (as integer value) from shadeset geology2.shd (included in the data package)
LABL geologic map unit label, in plain text
PLABL Coded geologic map unit label used to generate plot labels with relevant stratigraphic symbols. The geologic units with LABL designating Mesozoic (Mz), Paleozoic (Pz), and Proterozoic (Pr) have keystroke substitute characters, }, |, and < respectively, that call their corresponding symbols from the Geoage Font Group. Geologic map unit labels will plot on derivative map plots with appropriate stratigraphic symbols if PLABL is used as the source for unit labels. The Geoage Font Group is accessed through geofont.txt. The GeoAge Font Group and relevant information are available by anonymous FTP from: Server: onyx.wr.usgs.gov
NAME Geologic name of map unit (see list under LABL attribute)

devre_geo.aat

Geologic features such as contacts and faults that bound rock-unit polygons (a complete description of each line type is available in the data table, lines.rel.)

Label Definition
L-TAG Coded alpha-numerical symbol that relates arc to definition of line type in dictionary look-up table (lines.rel). For description of attributes in line classification dictionary, refer to USGS Open-File Report 97-861 (see Entity_and_Attribute_Detail_Citation)
L-SYMB stores appropriate line symbol value from the lineset geoscamp2.lin
L-NAME Formal name of fault

devre_str.pat

Geological point data includes site-specific information describing the types and the orientation of bedding, foliation, and lineations. One annotation subclass is included in the geologic points coverage, DEVRE_STR: anno.dip displays the respective dip and plunge values associated with individual point data.

Label Definition
P-TAG Coded alpha-numerical value that relates point entity to definition of point type in dictionary INFO table, points.rel. For description of attributes in point classification dictionary, refer to USGS Open-File Report 97-859 (see Entity_and_Attribute_Detail_Citation)
P-SYMB Coded integer value that relates point to cartographic point symbol in markerset geoscamp2.mrk
P-STRIKE Azimuthal strike of planar feature
P-DIP Dip of planar feature
P-DIPDIR Azimuthal direction of dip of planar feature
P-PLUNGE Plunge of linear feature
P-BEARING Azimuthal direction of plunge of linear feature

devre_ldr.aat

Annotation leaders

Label Definition
L-SYMB Coded integer value (1) that relates arcs to cartographic line symbol in lineset geoscamp2.lin