Online Links:
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
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 FormationPLABL 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.
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
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 standardL-SYMB calls up the appropriate line symbol from the lineset geoscamp2.lin (included in the data package)
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 standard3) apache_pts - geological 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
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, inclinedP-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).
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 plane5) apache_sample - sample localities
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
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
Mapping of the Apache Canyon quadrangle benefitted from field visits by S.A. Minor, K.S. Kellogg, and R.G. Stanley. Tephrochronologic data and interpretations provided by A.M. Sarna-Wojcicki were invaluable for refining the age of the Morales Formation. F.K. Miller generously scribed the geologic base in preparation for scanning. Zenon Valin and Karen Wheeler provided advice and assistance in scanning and subsequent processing of the topographic base. Russell W. Graymer provided a thorough scientific review of the manuscript and David Bedford reviewed the digital files, database pamphlet, and metadata.
The data set for the Apache Canyon quadrangle has been prepared by the Southern California Areal Mapping Project (SCAMP), a cooperative project sponsored jointly by the U.S. Geological Survey and the California Division of Mines and Geology, as part of an ongoing effort to utilize a Geographical Information System (GIS) format to create a regional digital geologic database for southern California. This regional database is being developed as a contribution to the National Geologic Map Data Base of the National Cooperative Geologic Mapping Program of the USGS.
The digital geologic map database for the Apache Canyon quadrangle has been created as a general-purpose data set that is applicable to other land-related investigations in the earth and biological sciences. The Apache Canyon database is not suitable for site-specific geologic evaluations at scales greater than 1:24,000 (1 in = 2,000 ft).
Online Links:
Scale (X,Y) = (609.269,609.863) Skew (degrees) = (-0.005)
Rotation (degrees) = (0.000) Translation = (-6238.780,-1419.455)
RMS Error (input,output) = (0.000,0.281)
Affine X = Ax + By + C
Y = Dx + Ey + F
A = 609.269 B = -0.056 C = -6238.780
D = 0.002 E = 609.863 F = -1419.455
Are there legal restrictions on access or use of the data?Access_Constraints: None
Use_Constraints:The Apache Canyon 7.5' geologic-map database should be used to evaluate and understand the geologic character of the Apache Canyon quadrangle as a whole. The data should not be used for purposes of site-specific land-use planning or site-specific geologic evaluations. The database is sufficiently detailed to identify and characterize many actual and potential geologic hazards represented by faults and landslides. However, it is not sufficiently detailed for site-specific determinations or evaluations of those features. Faults shown do not take the place of fault-rupture hazard zones designated by the California State Geologist (see Hart, 1988).
Use of the Apache Canyon geologic-map database should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of any derivative maps, the detail and accuracy issues inherent in map scale limitations are also present in the digital data. The fact that this database was edited at a scale of 1:24,000 means that higher-resolution data generally are not present in the dataset. Plotting at scales larger than 1:24,000 will not yield greater, real detail, although it may reveal fine-scale irregularities beyond the intended resolution of the database. Similarly, although higher-resolution data is incorporated at a few places, the resolution of the combined output will be limited by the lower-resolution data.
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Hart, E. W., 1988, Fault-rupture zones in California; Alquist-Priolo Special Studies Zones Act of 1972 with index to special studies zones maps: California Division of Mines and Geology Special Publication 42
The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by USGS.
This digital, geologic map database of the Apache Canyon 7.5'quadrangle, 1:24,000 map-scale, and any derivative maps thereof, is not meant to be used or displayed at any scale larger than 1:24,000 (e.g., 1:12,000).
| Data format: | Contacts, fault traces, geologic units, and structural attitude measurements in format ARCE (version 7.x) |
|---|---|
| Network links: |
http://pubs.usgs.gov/of/2000/0359/apache.tar.gz |