Geologic map of the Lockwood Valley quadrangle, Ventura County, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/99-130/metadata.faq.html
Description The Lockwood Valley quadrangle is located in the western Transverse Ranges of California, about 10 km southwest of Frazier Park. It includes the western flank of Frazier Mountain, southern Lockwood Valley, and a region of the Los Padres National Forest n
Originators Kellogg, Karl S.
Publication U.S. Geological Survey Open-File Report 99-130

Related topics

States or counties

Overview of attributes

The data is supplied in ARC/INFO export and shape file formats.
DATABASE STRUCTURE - ARC/INFO ====================================
The database of the map consists of three coverages (root name = lw). This GIS database includes related look-up tables, which store detailed attribute information.  Arc/Info relates for each coverage are saved in a file named <covername>.rel.  Use the RELATE command with the restore argument at the arc prompt to make the relates active.  Alternatively, in Arctools, use the Relate environment:  open dialog in the Manage - Relates flyout menu under the Arctools menu to make the relates active.
lwpoly coverage:  Contains all contact lines and labelpoints for each geologic polygon.  In the lwpoly.pat INFO file the LABEL item indicates the rock unit label (abbreviation) used to label the unit on the map.  The DESC item contains the formal or informal unit name.  The SOURCE item contains the numeric code used to identify the data source for the rock unit.  The SYMBOL item contains the shadeset symbol number used by ArcInfo to plot a filled/shaded polygon.  The symbol numbers in this coverage refer to the color524.shd shadeset.
In the coverage's lwpoly.aat INFO file the NAME item contains the name given to the structural feature.  The SOURCE item contains the numeric code used to identify the data source for the structural feature.  The SYMBOL item contains the lineset symbol number used by ArcInfo to plot a line.  The symbol numbers in this coverage refer to the geol_sfo.lin lineset.
In the coverage's lwpoly.ref INFO file the SOURCE item lists the numeric code used to identify the data source.  The scale item lists the scale of the source map.  (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.)  The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial.  The YEAR item lists the source (map) publication date.  The REFERENCE item lists the remainder of the reference in USGS reference format.
The INFO structure of these files is listed below:
>LWPOLY.PAT
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   8    18     F      5
>    9  PERIMETER              8    18     F      5
>   17  LWPOLY#                4     5     B      -
>   21  LWPOLY-ID              4     5     B      -
>   25  SOURCE                 4     4     I      -
>   29  LABEL                 10    10     C      -
>   39  DESC                 100   100     C      -
>  139  SYMBOL                 3     3     I      -
>LWPOLY.CON
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  LINECODE               3     3     I      -
>    4  SYMBOL                 3     3     I      -
>    7  TYPE                  10    10     C      -
>   17  MODIFIER              20    20     C      -
>   37  CERTAINTY             15    15     C      -
>   52  DESC                 100   100     C      -
>LWPOLY.STR
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  LINECODE               3     3     I      -
>    4  SYMBOL                 3     3     I      -
>    7  TYPE                  10    10     C      -
>   17  HORIZONTAL            20    20     C      -
>   37  VERTICAL              20    20     C      -
>   57  FOLD                  15    15     C      -
>   72  PLUNGE                15    15     C      -
>   87  ACCURACY              15    15     C      -
>  102  CERTAINTY             15    15     C      -
>  117  DESC                 100   100     C      -
>LWPOLY.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                 8    18     F      5
>   25  LWPOLY#                4     5     B      -
>   29  LWPOLY-ID              4     5     B      -
>   33  LINECODE               3     3     I      -
>   36  NAME                  30    30     C      -
>   66  SOURCE                 4     4     I      -
>   70  SYMBOL                 3     3     I      -
>LWPOLY.REF
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  SOURCE                 4     4     I      -
>    5  SCALE                  8     8     I      -
>   13  AUTHORS              200   200     C      -
>  213  YEAR                   4     4     I      -
>  217  REFERENCE            250   250     C      -
lwline coverage:  contains limit of overturned strata, cross-section lines, and a synclinal fold axis line.  In the lwline.aat INFO file the NAME item indicates the name given to the structural feature.  The SOURCE item contains the numeric code used to identify the data source for the structural feature.  The DESC item contains the written description or explanation of the contact, boundary, or structural feature.  The SYMBOL item contains the lineset symbol number used by ArcInfo to plot a line.  The symbol numbers in this coverage refer to the geol_sfo.lin lineset.
In the coverage's lwline.ref INFO file the SOURCE item lists the numeric code used to identify the data source.  The scale item lists the scale of the source map.  (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.)  The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial.  The YEAR item lists the source (map) publication date.  The REFERENCE item lists the remainder of the reference in USGS reference format.
The INFO structure of these files is listed below:
>LWLINE.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                 8    18     F      5
>   25  LWLINE#                4     5     B      -
>   29  LWLINE-ID              4     5     B      -
>   33  LINECODE               3     3     I      -
>   36  NAME                  30    30     C      -
>   66  SOURCE                 4     4     I      -
>   70  DESC                 100   100     C      -
>  170  SYMBOL                 3     3     I      -
>LWLINE.CON
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  LINECODE               3     3     I      -
>    4  SYMBOL                 3     3     I      -
>    7  TYPE                  10    10     C      -
>   17  MODIFIER              20    20     C      -
>   37  CERTAINTY             15    15     C      -
>   52  DESC                 100   100     C      -
>LWLINE.STR
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  LINECODE               3     3     I      -
>    4  SYMBOL                 3     3     I      -
>    7  TYPE                  10    10     C      -
>   17  HORIZONTAL            20    20     C      -
>   37  VERTICAL              20    20     C      -
>   57  FOLD                  15    15     C      -
>   72  PLUNGE                15    15     C      -
>   87  ACCURACY              15    15     C      -
>  102  CERTAINTY             15    15     C      -
>  117  DESC                 100   100     C      -
>LWLINE.REF
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  SOURCE                 4     4     I      -
>    5  SCALE                  8     8     I      -
>   13  AUTHORS              200   200     C      -
>  213  YEAR                   4     4     I      -
>  217  REFERENCE            250   250     C      -
lwpnt coverage:  Contains points recording site-specific observations and measurements, such as strike and dip of bedding. In the lwpnt.pat INFO file the PTTYPE item lists the type of point symbol, e.g., strike and of inclined bedding.  The SYMBOLCD item lists the marker symbol used by ArcInfo to identify the type of structural map symbol.  Symbol numbers refer to the geoscamp2.mrk markerset.  The STRIKE item contains the strike of bedding.  Strike is an azimuthal angle (measured in degrees from 0 to 360 in a clockwise direction from North).  The DIP item contains the dip of bedding.  This value is an angle measured (in degrees 0 to 90) down from the horizontal; thus a horizontal dip is 0 degrees and a vertical dip is 90 degrees.  The BEARING item contains the bearing of lineation.  Bearing is an azimuthal angle (measured in degrees from 0 to 360 in a clockwise direction from North).  The PLUNGE item contains the plunge of lineation.  This value is an angle measured (in degrees 0 to 90) down from the horizontal; thus a horizontal plunge is 0 degrees and a vertical plunge is 90 degrees.  The CALCANG item contains an interim value used to calculate SYM$ANGLE.  The SYM$ANGLE item is the angle used to mathematically rotate the map point symbol to its proper orientation on the map.  This item was set equal to the pseudoitem '$ANGLE' (calc SYM$ANGLE = $ANGLE).  The SOURCE item lists the numeric code used to identify the data source.
In the coverage's lwpnt.ref INFO file the SOURCE item lists the numeric code used to identify the data source.  The scale item lists the scale of the source map.  (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.)  The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial.  The YEAR item lists the source (map) publication date.  The REFERENCE item lists the remainder of the reference in USGS reference format.
The INFO structure of these files is listed below:
>LWPNT.PAT
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   8    18     F      5
>    9  PERIMETER              8    18     F      5
>   17  LWPNT#                 4     5     B      -
>   21  LWPNT-ID               4     5     B      -
>   25  PTTYPE                80    80     C      -
>  105  SYMBOLCD               3     3     I      -
>  108  STRIKE                 3     3     I      -
>  111  DIP                    3     3     I      -
>  114  BEARING                3     3     I      -
>  117  PLUNGE                 3     3     I      -
>  120  CALCANG                4     4     I      -
>  124  SYM$ANGLE              4     4     I      -
>  128  SOURCE                 4     4     I      -
>LWPNT.REF
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  SOURCE                 4     4     I      -
>    5  SCALE                  8     8     I      -
>   13  AUTHORS              200   200     C      -
>  213  YEAR                   4     4     I      -
>  217  REFERENCE            250   250     C      -
Auxiliary files:
color524.shd:  This shadeset file defines the rgb values of colors assigned to polygons in the lwpoly coverage (see SYMBOL item).
geol_sfo.lin:  This lineset file defines geologic line types in the geologically themed coverages.
geoscamp2.mrk:  This markerset file defines the geologic markers in the geologically themed coverages.
>LABEL	 DESC
>Qa	Alluvium (Holocene)
>Qc	Colluvium (Holocene)
>Qac	Alluvium, loess, and colluvium, undifferentiated (Holocene)
>Qls	Landslide deposits (Holocene)
>Qt	Talus (Holocene)
>Qdf	Debris-flow deposit (Holocene and upper Pleistocene)
>Qlo	Older landslide deposit (upper? Pleistocene)
>Qoa	Older alluvium (upper? Pleistocene)
>Qbd	Boulder diamicton (Pleistocene)
>Qhc	High-level conglomerate (lower? Pleistocene)
>Tqc	Quatal Formation, sandstone and conglomerate member (Pliocene)
>Tqs	Quatal Formation, sandstone and siltstone member (Pliocene)
>Tqa	Quatal Formation, arkosic member (Pliocene)
>Tqb	Quatal Formation, brown member (Pliocene)
>Tqg	Quatal Formation, green claystone and sandstone member (Pliocene)
>Tlc	Lockwood Clay (Pliocene or Miocene)
>Tc	Caliente Formation, undifferentiated (Miocene)
>Tcs	Caliente Formation, green claystone and sandstone member (Miocene)
>Tjm	Juncal Formation, mixed shale and sandstone member (Eocene)
>Tjs	Juncal Formation, sandstone member (Eocene)
>Tjc	Juncal Formation, conglomerate member (Eocene)
>Kgs	Quartz monzonite of Sheep Creek (Upper Cretaceous)
>Kgl	Granodiorite of Lockwood Mountain (Upper Cretaceous)
>Pag	Frazier Mountain augen gneiss (Lower Proterozoic)
>Pbg	Biotite gneiss  (Lower Proterozoic)
>Pqfg	Quartzofeldspathic gneiss (Lower Proterozoic)
>DEFINITION OF LINECODES IN THE COVERAGES (LINECODES AND DESC IN THE .CON AND .STR
>FEATURES IN THE DATABASE-------------------------
>LINECODE |   DESC
>    1    | contact
>    2    | contact, approximate (dashed)
>    3    | contact, concealed (dotted)
>   41    | water body
>   81    | map boundary (lines of latitude or longitude)
>   88    | limit of overturned strata
>   98    | cross-section line
>  102    | fault, unknown offset, approximate (dashed)
>  103    | fault, unknown offset, concealed (dotted)
>  111    | normal fault
>  112    | normal fault, approximate (dashed)
>  113    | normal fault, concealed (dotted)
>  161    | reverse fault
>  162    | reverse fault, approximate (dashed)
>  163    | reverse fault, concealed (dotted)
>  173    | thrust fault, concealed (dotted)
>  403    | horizontal anticline, concealed
>  404    | plunging anticline, approximate
>  406    | plunging anticline, concealed
>  412    | double plunging anticline (out), concealed
>  413    | horizontal syncline
>  415    | horizontal syncline, concealed
>  416    | plunging syncline
>  417    | plunging syncline, approximate
>  418    | plunging syncline, concealed
>  442    | overturned syncline, concealed

For description of map units, refer to map text (in file ofr-99-0130-p.pdf)