Geologic Map of the Corona North 7.5' Quadrangle, Riverside and San Bernardino Counties, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/02-22/metadata.faq.html
Description This data set maps and describes the geology of the Corona North 7.5' quadrangle, Riverside and San Bernardino Counties, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items
Originators Morton, Douglas M. and Gray, C. H., Jr.
Publication U.S. Geological Survey Open-File Report 02-22

Related topics

States or counties

Overview of attributes

Version 1.0 of the Corona North 7.5' quadrangle comprises three ARC/INFO coverages, of which two contain geologic data, and one contains cartographic features:  crn_geo (geology), crn_str (structural data), and crn_ano (annotation and leaders).
Geologic data represented by line entities and the polygons they delineate are contained in the coverage CRN_GEO.  For display purposes, the annotation coverage contains three annotation subclasses:  anno.geo contains unit labels, anno.fault contains fault names, and anno.mountain contains peak names.
Geological point data includes site-specific information describing the types and the orientation of bedding, foliation, and lineations.  Annotation is respective dip and plunge values associated with individual point data.
>CRN_GEO.PAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   4    12     F      3
>    5  PERIMETER              4    12     F      3
>    9  CRN_GEO#               4     5     B      -
>   13  CRN_GEO-ID             4     5     B      -
>   17  LABL                  35    35     C      -
>   52  SHD                    3     3     I      -
>   55  PLABL                 35    35     C      -
>   90  SHDFIL                 3     3     I      -
>   93  NAME                 200   200     C      -
>
>CRN_GEO.AAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  FNODE#                 4     5     B      -
>    5  TNODE#                 4     5     B      -
>    9  LPOLY#                 4     5     B      -
>   13  RPOLY#                 4     5     B      -
>   17  LENGTH                 4    12     F      3
>   21  CRN_GEO#               4     5     B      -
>   25  CRN_GEO-ID             4     5     B      -
>   29  LTYPE                 35    35     C      -
>   64  L-SYMB                 3     3     I      -

http://pubs.usgs.gov/of/2002/0022/pdf/README.pdf

crn_geo.pat

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

Label Definition
LABL geologic map unit label, in plain text
PLABL Geological map unit label used to generate plot labels with relevant stratigraphic symbols. The geologic units with LABL designating Mesozoic (Mz) have keystroke substitute characters, }, 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.
SHD polygon color (as integer value) from shadeset alc1.shd
SHDFIL polygon fill pattern (as integer value) from shadeset geology2.shd
NAME Geologic name of map unit (see list under LABL attribute)

crn_geo.aat

Geologic features such as contacts and faults that bound rock-unit polygons

Label Definition
LTYPE Description of types of lines on the geologic map (contact, fault).
L-SYMB stores appropriate line symbol value from the lineset geoscamp2.lin

crn_str.pat

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

Label Definition
PTTYPE describes type of point data (bedding, horizontal bedding, foliation)
P-SYMB Coded integer value that relates point to cartographic point symbol in markerset geoscamp2.mrk
STRIKE Azimuthal strike of planar feature
DIP Dip of planar feature

crn_ano.aat

Annotation leaders

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