Preliminary Geologic Map of the San Bernardino 30' x 60' quadrangle, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/03-293/metadata.faq.html
Description The San Bernardino 30'x60' quadrangle, southern California, is diagonally bisected by the San Andreas Fault Zone, separating the San Gabriel and San Bernardino Mountains, major elements of California's east-oriented Transverse Ranges Province. Included i
Originators Morton, Douglas M. and Miller, Fred K.
Publication U.S. Geological Survey Open-File Report 03-293

Related topics

States or counties

Overview of attributes

Version 1.0 of the San Bernardino  30' x 60' quadrangle comprises nine ARC/INFO
coverages, of which four contain geologic data, one contains cartographic features, three
provide base-map, DLG-derived, reference data, and one contains the distribution of
constituent 7.5' quadrangles: sanbern_geo (geology), sanbern_str (structural point data,
fold axis and line ornamentation), sanbern_dk (dikes as linear elements), sanbern_flt
(faults and annotation), sanbern_carto (geologic unit annotation, locality names),
snbrn_hypso (hypsography), snbrn_hydro (hydrography), snbrn_transp (transportation and
cultural data), and snbrn_quds (32 constituent 7.5' quadrangles).
In addition to the customary software-defined attributes in each feature attribute table,
user-defined attributes are included that allow the user access to more detailed geologic
information including unit name, grain size where applicable, and rock assemblage. Two
lookup tables are included: rockunit_color.lut (rockunit color assignment) and
rockunit_pattern.lut (rockunit pattern assignment).

http://pubs.usgs.gov/of/2003/of03-293/SB100K_pamphlet.pdf

sanbern_geo.pat

Polygon feature attribute table that stores alphanumeric symbols for units that characterize lithologic type and age of earth materials represented by each polygon, color assignment, unit name, subunit, and grain-size where applicable.

Label Definition
LABL Rock-unit label
UNITNAME Rock-unit name
SUBUNIT Subdivisions of units with more than one component
GRAIN_SIZE Characterizes grain-size of mapped Quaternary units where applicable.
ASSEMBLAGE Identifies within which of the principle structural blocks a unit is located.

sanbern.aat

Geologic contacts, faults, and map boundary.

Label Definition
L-SYMB Integer symbol (listed below along with line descriptions) that relates arc to cartographic line symbol in lineset: geoscamp2.lin
L-NAME Formal name of fault feature
DESCR Summary description of line type

sanbern_str.pat

Planar structural point data showing bedding and foliation orientation (strike, dip, direction of dip);qualitative point data - fold axes line ornamentation.

Label Definition

sanbern_str.aat

Arc attribute table containing fold axes - monocline.

Label Definition

sanbern_dk.aat

Dikes

Label Definition

sanbern_flt.aat

Faults: contains same information as sanbern_geo.aat. However, due to the complexity of regional fault distribution, we feel it is useful to include the faults in a separate coverage. Coverage contains (1) faults, (2) cartographic elements as (a) fault name annotation, (b) fault-plane dip values; (3) line ornamentation as point symbols.

Label Definition

snbrn_carto

Cartographic elements: geologic unit labels (anno.geo), leaders, locality information (anno.locality), names of major water bodies (anno.water_body).

Label Definition