Geologic Map and Digital Database of the Apache Canyon 7.5' Quadrangle, Ventura and Kern Counties, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/00-359/metadata.faq.html
Description This data set maps and describes the geology of the Apache Canyon 7.5' quadrangle, Ventura and Kern Counties, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map
Originators Stone, Paul A. and Cossette, Pamela M.
Publication U.S. Geological Survey Open-File Report 00-359

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Overview of attributes

The ARC/INFO version of the Digital Geologic Map of the Apache
Canyon 7.5'quadrangle consists of seven coverages:
1)	apache_geo - geology
Geologic units are delineated by geologic line entities and
described by polygons which are attributed with the following
set of attribute items in apache_geo.pat.  For display
purposes, the geology coverage contains a single annotation
subclass: anno.geo contains unit labels.
>
>APACHE_GEO.PAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   8    18     F      5
>    9  PERIMETER              8    18     F      5
>   17  APACHE_GEO#            4     5     B      -
>   21  APACHE_GEO-ID          4     5     B      -
>   25  LABL                  35    35     C      -
>   60  PLABL                 35    35     C      -
>   95  NAME                 200   200     C      -
>  295  SHDPS                  3     3     I      -
LABL	geologic map unit label, in plain text
Alphabetized list of map units symbols (LABL) and the corresponding
map unit names (NAME) specified in the Apache Canyon geologic map
database (apache_geo.pat):
>
>Mzd		Diorite
>Mzg		Granite
>Pgn		Gneiss
>Qam		Alluvium of modern stream channels
>Qda		Debris-apron deposits
>Qls		Landslide deposits, talus, and colluvium
>Qoa		Old alluvium
>Qt		Tuff(?)
>QTm		Morales Formation
>Qya		Young alluvium
>Tac		Sandstone and conglomerate of lower Apache Canyon,
>			conglomerate unit
>Tap		Sedimentary breccia of Apache Potrero
>Tas		Sandstone and conglomerate of lower Apache Canyon,
>			sandstone unit
>Tba		Basalt
>Tbr		Sandstone of Blue Rock Spring
>Tcl		Caliente Formation, lower part
>Tcp		Sedimentary breccia and sandstone of Cowhead Potrero
>Tcu		Caliente Formation, upper part, undivided
>Tcu1		Caliente Formation, upper part, unit 1
>Tcu2		Caliente Formation, upper part, unit 2
>Tlc		Lockwood Clay
>Tnc		Sandstone of Nettle Spring and upper part of Caliente
>			Formation, undivided
>Tns		Sandstone of Nettle Spring
>Tq		Quatal Formation
>Tql		Quatal Formation, lower part
>Tsc		Sandstone and conglomerate
>Tsh		Sandstone and shale, lower thin-bedded sandstone and
>			shale unit
>Tsi		Simmler(?) Formation
>Tss		Sandstone and shale, upper sandstone unit
>Tv		Vaqueros Formation
>
PLABL	coded geologic map unit label used to generate plot labels
with relevant stratigraphic symbols. The geologic units with LABL
Mzd and Mzg (Mesozoic), and Pgn (Proterozoic) appear as }d, }g, and
<gn respectively in the item PLABL.  The replacement characters
call their corresponding symbols from the Stratagem Font Group,
currently publicly available at the following Web site
http://pubs.usgs.gov/of/1999/of99-430/
Geologic map unit labels will plot on derivative  map plots
with appropriate stratigraphic symbols if PLABL is used as
the source of unit labels.
NAME	geologic name of each unit
SHDPS	polygon color from shadeset scamp2.shd (included in the
data package)
Geologic lines, which include features such as faults, contacts,
and marker horizons  are attributed with the following set of feature
attribute items contained in apache_geo.aat.
(A complete description of each line type is available in the data
table, lines.rel.)
>
>APACHE_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                 8    18     F      5
>   25  APACHE_GEO#            4     5     B      -
>   29  APACHE_GEO-ID          4     5     B      -
>   33  L-TAG                 25    25     C      -
>   58  L-SYMB                 3     3     I      -
>
>
L-TAG	line tag which consists of a character and numerical value,
e.g.  C17, allows the user to relate the line entity to its
corresponding definition in lines.rel
List of line types used in the Apache Canyon geologic map coverage
(apache_geo.aat), including abbreviated descriptions from lines.rel:
>C1	Contact, generic, observable, location meets map accuracy
>		standard
>C17	Contact, landslide, observable, location meets map
>		accuracy standard
>C19	Contact. landslide, inferrred, location may not meet map
>		accuracy standard
>C29	Contact, sedimentary, observable, location meets map
>		accuracy standard
>C30	Contact, sedimentary, observable, location may not meet
>		map accuracy standard
>C31	Contact, sedimentary, inferred, location may not meet map
>		accuracy standard
>C34	Contact, sedimentary, questionable, location may not meet
>		map accuracy standard
>C50	Contact, igneous, observable, location may not meet map
>		accuracy standard
>CL1	Cartographic line, map boundary
>F1	Fault, high-angle, generic, observable, location meets
>		map accuracy standard
>F13	Fault, high angle, generic, inferred, location may not
>		meet map accuracy standard
>F177	Fault, low angle, thrust, location meets map accuracy standard
>F180	Fault, low angle, thrust, location may not meet map accuracy
>		standard
>F19	Fault, high-angle, slip unspecified, inferred, location may
>		not meet map accuracy standard
>F22	Fault, high-angle, normal slip, covered, location may not
>		meet map accuracy standard
>F34	Fault, high-angle, normal slip, questionable, location may
>		not meet map accuracy standard
>F35	Fault, high-angle, reverse, questionable, location may not
>		meet map accuracy standard
>F4	Fault, high-angle, normal slip, certain, location meets
>		map accuracy standard
>F40	Fault, high-angle, normal fault, inferred, location may not
>		meet map accuracy standard
>F41	Fault, high-angle, reverse, questionable, location may not
>		meet map accuracy standard
>F5	Fault, high-angle, reverse, certain, location meets map
>		accuracy standard
>F73	Fault, low angle, slip unspecified, certain, location meets
>		map accuracy standard
>GF9	Ground-failure crown scarp, located well but may not meet
>		map accuracy standard
>MH11	Mapped marker horizon, located well but may not meet map
>		accuracy standard
>
L-SYMB	calls up the appropriate line symbol from the lineset
geoscamp2.lin (included in the data package)
2)	apache_str - structural lines
The attribute values, L-TAG and L-SYMB, link the line tag to the
data table, lines.rel and call up the appropriate line symbol from
the lineset geoscamp2.lin respectively.
>
>APACHE_STR.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  APACHE_STR#            4     5     B      -
>   29  APACHE_STR-ID          4     5     B      -
>   33  L-TAG                 25    25     C      -
>   58  L-SYMB                 3     3     I      -
>
>
List of line types used in the Apache Canyon structural map coverage
(apache_str.aat), including abbreviated descriptions from lines.rel:
>FA34	Fold axial trace, anticline, upright, observable, location
>		may not meet map accuracy standard
>FA35	Fold axial trace, anticline, upright, questionable, location
>		may not meet map accuracy standard
>FA36	Fold axial trace, anticline, upright, inferred beneath
>		mapped covering unit, location may not meet map
>		accuracy standard
>FA50	Fold axial trace, anticline, overturned, observable, location
>		may not meet map accuracy standard
>FA51	Fold axial trace, anticline, overturned, inferred, location
>		may not meet map accuracy standard
>FA52	Fold axial trace, anticline, overturned, inferrerd beneath
>		mapped covering unit, location may not meet map
>		accuracy standard
>FA98	Fold axial trace, syncline, upright, observable, location
>		may not meet map accuracy standard
>FA99	Fold axial trace, syncline, upright, inferred, location may
>		not meet map accuracy standard
>FA100	Fold axial trace, syncline, upright, inferred beneath mapped
>		covering unit, location may not meet map accuracy
>		standard
>
3)	apache_pts - geological point data
Geological point data includes information describing the types and
the orientation of bedding and foliation. One annotation subclass is
included in the geologic points coverage: value displays the
respective dip values associated with individual point data.
>
>APACHE_PTS.PAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   8    18     F      5
>    9  PERIMETER              8    18     F      5
>   17  APACHE_PTS#            4     5     B      -
>   21  APACHE_PTS-ID          4     5     B      -
>   25  P-TAG                 25    25     C      -
>   50  P-SYMB                 3     3     I      -
>   53  P-DIP                  3     3     I      -
>   56  P-STRIKE               3     3     I      -
>   59  P-DIPDIR               3     3     I      -
>
>
P-TAG		point tag which consists of a character(s) and
numerical value, e.g. FN42, allows the user to relate
the point entity to its corresponding definition in
the data table, points.rel
P-SYMB		calls the point-type from the markerset geoscamp2.mrk
(included in the data package)
P-DIP		the dip of planar features
P-STRIKE	the azimuth strike of planar features
Point types (quantitative orientation data) in apache_pts.pat and
their corresponding, abbreviated descriptions from points.rel:
>
>B1	Bedding attitude, sedimentary, horizontal
>B2	Bedding attitude, sedimentary, inclined
>B4	Bedding attitude, sedimentary, vertical
>B6	Bedding attitude, sedimentary, overturned
>FC4	Fault dip direction
>FN2	Foliation attitude, inclined
>FN42	Foliation attitude, metamorphic, inclined
>
P-DIPDIR	azimuthal direction of dip
To date, there is no other way to indicate to the user the
cardinal direction of dip using the traditional convention
(traditional geologic notation allows a quadrant
designation following the dip value).
4)	apache_ptsorn - structural line ornamentation
The point data included in apache_ptsorn allow a visual representation of
the type of structural linear feature, e.g. anticline and syncline
symbols.  The items P-TAG and P-SYMB link the point tag to its full
description in points.rel and call up the appropriate point symbol from
geoscamp2.mrk.
>
>APACHE_PTSORN.PAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   8    18     F      5
>    9  PERIMETER              8    18     F      5
>   17  APACHE_PTSORN#         4     5     B      -
>   21  APACHE_PTSORN-ID       4     5     B      -
>   25  P-TAG                 25    25     C      -
>   50  P-SYMB                 3     3     I      -
>
>
Point types (fold axes ornamentation) in ap_ptsorn.pat and their
corresponding, abbreviated descriptions from points.rel:
>
>FC1	Fault attribute, bar and ball on downdropped block
>FAC4	Fold ornament, anticline, upright axial plane
>FAC5	Fold ornament, anticline, overturned axial plane
>FAC10	Fold ornament, syncline, upright axial plane
>
5)	apache_sample - sample localities
A single sample locality, Tuff locality, is representd in ap_sample.
>
>APACHE_SAMPLE.PAT:
>
>COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
>    1  AREA                   8    18     F      5
>    9  PERIMETER              8    18     F      5
>   17  APACHE_SAMPLE#         4     5     B      -
>   21  APACHE_SAMPLE-ID       4     5     B      -
>   25  LOCALITY              35    35     C      -
>   60  P-SYMB                 3     3     I      -
>
>
6)	apache_ldr - unit annotation leaders
Annotation leaders point to unit labels that are placed outside the
perimeter of a particular geologic polygon.  These cartographic line
entities are attributed with only  a single attribute, L-SYMB, and
all have the same value, 1.
>
>APACHE_LDR.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  APACHE_LDR#            4     5     B      -
>   29  APACHE_LDR-ID          4     5     B      -
>   33  L-SYMB                 3     3     I      -
>
>
7)	apache_xs - cross-section lines
Three cross-section analyses are represented on the Apache Canyon
quadrangle map plot by three lines contained in the coverage
apache_xs.  Their definitions are identical to those contained in
apache_ldr.  These cartographic line entities are similarly
attributed with only a single attribute, L-SYMB, and all have the
same value, 1. The cross-section lines AA', BB', and CC' are
designated by annotation contained in the annotation subclass,
xsection.
The data dictionary tables, lines.rel and points.rel each
contain three items: L-TAG and P-TAG establish the links
between the .aat, and the .pat to the respective data
tables. The items L-DEF and P-DEF, respectively provide the
coded definition for an entity.  The items L-EXP and P-EXP
provide a parsed explanation of the code contained in the
corresponding -DEF items.

A complete description of the polygon, line, and point data coding schemes is available in U.S. Geological Survey Open-File Reports 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