USGS - science for a changing world

Open-File Report 02-491

Geologic map and digital database of the Pinto Mountain 7.5 minute quadrangle, Riverside County, California

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Robert E. Powell
Originator: Pamela M. Cossette (digital cartography)
Publication_Date: 2002
Title:
Geologic map and digital database of the Pinto Mountain 7.5 minute quadrangle, Riverside County, California
Edition: Version 1.0
Geospatial_Data_Presentation_Form: Vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: USGS OF 02-XXX
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: URL:<http://geopubs.wr.usgs.gov/open-file/of02-xxx>
Description:
Abstract:
This data set maps and describes the geology of the Pinto Mountain 7.5 minute quadrangle, Riverside County, southern California. The quadrangle, situated in Joshua Tree National Park in the eastern Transverse Ranges physiographic and structural province, encompasses parts of the northeastern Hexie Mountains, central Pinto Mountains, and central Pinto Basin.

The quadrangle is underlain by a basement terrane comprising Proterozoic metamorphic rocks, Mesozoic plutonic rocks, and Mesozoic and Mesozoic and (or) Cenozoic hypabyssal dikes. The basement terrane is capped by a widespread Tertiary erosion surface preserved in remnants in the Hexie and Pinto Mountains and buried beneath Cenozoic deposits in Pinto Basin. Locally, a cover of Miocene sedimentary deposits and basalt overlie the erosion surface. Quaternary and (or) Tertiary lacustrine deposits crop out in the center of Pinto Basin and interfinger laterally with sandstone, conglomerate, and debris flows originating in the Pinto and Hexie Mountains. A sequence of at least three Quaternary pediments is planed into the north piedmonts of the Hexie and Eagle Mountains, each in turn overlain by successively younger residual and alluvial, surficial deposits. The Tertiary erosion surface is deformed and broken by north-northwest-trending, high-angle, dip-slip faults in the Pinto and Eagle Mountains and an east-west trending system of high-angle dip- and left-slip faults along the range fronts facing Pinto Basin. In and around the Pinto Mountain quadrangle, faults of the north-northwest-trending set displace Miocene sedimentary rocks and basalt deposited on the Tertiary erosion surface and some of the faults may offset Pliocene and (or) Pleistocene deposits that accumulated on the oldest pediment. Faults of this system appear to be overlain by Pleistocene deposits that accumulated on younger pediments. East-west trending faults are younger than and perhaps in part coeval with faults of the northwest-trending set.

The Pinto Mountain database was created using ARCVIEW and ARC/INFO, which are geographical information system (GIS) software products of Envronmental Systems Research Institute (ESRI). The database comprises eight coverages: (1) a geologic layer showing the distribution of geologic contacts and units; (2) a structural layer showing the distribution of faults (arcs) and fault ornamentation data (points); (3) a layer showing the distribution of dikes (arcs); structural point data layers showing (4) bedding attitudes, (5) foliation attitudes, (6) lineations, (7) minor fold axes; and (8) cartographic map elements, including unit label leaders and geologic unit annotation. The dataset also includes a scanned topographic base at a scale of 1:24,000. Within the database coverages, geologic contacts , faults, and dikes are represented as lines (arcs and routes), geologic units as areas (polygons and regions), and site-specific data as points. Polygon, region, arc, route, and point attribute tables uniquely identify each geologic datum and link it to descriptive tables that provide more detailed geologic information.

The digital database is accompanied by two derivative maps: (1) A portable document file (.pdf) containing a navigable graphic of the geologic map on a 1:24,000 topographic base and (2) a PostScript graphic-file containing the geologic map on a 1:24,000 topographic base. Each of these map products is accompanied by a marginal explanation consisting of a Description of Map Units (DMU), a Correlation of Map Units (CMU), and a key to point and line symbols. The database is further accompanied by three document files: (1) a readme that lists the contents of the database and describes how to access it, (2) a pamphlet file that describes the geology of the quadrangle, and (3) this metadata file.

Purpose:
The data set for the Pinto Mountain 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 Geological Survey. The Pinto Mountain data set represents part of an ongoing effort to create a regional GIS geologic database for southern California. This regional digital database, in turn, is being developed as a contribution to the National Geologic Map Database of the National Cooperative Geologic Mapping Program of the USGS. The Pinto Mountain database has been prepared in cooperation with the National Park Service as part of an ongoing project to provide Joshua Tree National Park with a geologic map base for use in managing Park resources and developing interpretive materials.

The digital geologic map database for the Pinto Mountain quadrangle has been created as a general-purpose data set that is applicable to land-related investigations in the earth and biological sciences. Along with geologic map databases in preparation for adjoining quadrangles, the Pinto Mountain database has been generated to further our understanding of bedrock and surficial processes at work in the region and to document evidence for seismotectonic activity in the eastern Transverse Ranges. The database is designed to serve as a base layer suitable for ecosystem and mineral resource assessment and for building a hydrogeologic framework for the Pinto Basin.

Supplemental_Information:
Map nomenclature and symbols

Within the geologic map database, map units are identified by standard geologic map criteria such as formation-name, age, and lithology. The authors have attempted to adhere to the stratigraphic nomenclature of the U.S. Geological Survey and the North American Stratigraphic Code, but the database has not received a formal editorial review of geologic names.

Geologic map unit labels are present in three forms in the database. First, map unit labels are entered into the database through various items in the polygon attribute table, dike arc attribute table, and region attribute tables. Geologic map units are tabulated in items such as UNIT_LABEL and POLY_LABEL, where they are identified by plain-text unit labels (e.g., Qyam1, Prjgg). These labels do not show subscript offsets and do not contain conventional stratigraphic age symbols, i.e., Proterozoic appears as 'Pr'. Second, for the purpose of plotting the map, the item PLOT_LABEL, located in the polygon attribute and map display tables, identifies the unit label as it is plotted by Arc/Info (e.g., Qyam1, <jgg), again without subscripts and containing substitute characters for conventional stratigraphic age symbols: Proterozoic appears as '<'. The substitute character in PLOT_LABEL invokes its corresponding symbol from the GeoAge font group to generate map plots that display conventional stratigraphic symbols. Third, annotation labels for map units, derived from the item PLOT_LABEL but showing subscripts (e.g., Qyam1), are stored in the annotation subclass anno.geo of the arc coverage pmtn_carto/.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1964
Ending_Date: 2002
Currentness_Reference: New data
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As Needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -115.87509139
East_Bounding_Coordinate: -115.74990861
North_Bounding_Coordinate: 33.99999995
South_Bounding_Coordinate: 33.87498418
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: geologic map
Theme_Keyword: geology
Theme_Keyword: surficial geology
Theme_Keyword: bedrock geology
Theme_Keyword: fault
Theme_Keyword: erosion surface
Theme_Keyword: pediment
Theme_Keyword: soil
Theme_Keyword: alluvial deposits
Theme_Keyword: dike
Theme_Keyword: batholith
Theme_Keyword: metamorphic rocks
Theme_Keyword: plutonic rocks
Theme_Keyword: hypabyssal rocks
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: southern California
Place_Keyword: Riverside County
Place_Keyword: Joshua Tree National Park
Place_Keyword: eastern Transverse Ranges
Place_Keyword: Pinto Mountains
Place_Keyword: Hexie Mountains
Place_Keyword: Pinto Basin
Place_Keyword: Pinto Mountain 7.5' quadrangle
Place_Keyword: Hexie Mountains 15' quadrangle
Place_Keyword: Eagle Mountains 30' x 60' quadrangle
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Pinto Gneiss
Stratum_Keyword: Granite of Pinto Wash
Stratum_Keyword:
Porphyritic quartz monzonite, monzogranite, and granodiorite of San Bernardino Wash
Stratum_Keyword: Sedimentary strata of Pinto Basin
Stratum_Keyword: Quartzite of Pinto Mountain
Stratum_Keyword: Dolomite of Iron Chief mine
Stratum_Keyword: Alluvium
Access_Constraints: None
Use_Constraints:
Spatial Resolution. Use of this digital geologic map should not violate the spatial resolution of the data. The Pinto Mountain geologic map and database was developed using digital orthophotograph quarter quadrangles (DOQQs) as a base. DOQQs have a pixel resolution of 1 m and are accurate to a scale of 1:12,000 (1 in = 1,000 ft). Any enlargement beyond 1:12,000 exceeds the spatial resolution of the geologic data and should not be used in lieu of a more detailed site-specific geologic evaluation. Similarly, the digital topographic base map is derived from the U.S. Geological Survey, 1:24,000-scale Pinto Mountain 7.5 minute quadrangle (provisional edition, 1986); any enlargement beyond 1:24,000 exceeds the spatial resolution of the topographic data. Plotting or viewing of the data at scales larger than 1:12,000 on the DOQQ base, or larger than 1:24,000 on the topographic base, will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Where the geologic data is used in combination with the topographic data, the resolution of the combined output is limited by the lower resolution of the topographic data. Where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data.

Content. This database, identified as "Geologic map and digital database of the Pinto Mountain 7.5 minute quadrangle, Riverside County, California" has been approved for release and publication by the Director of the U.S. Geological Survey. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on the condition that neither the USGS nor the United States Government may be held responsible for any damages resulting from its authorized or unauthorized use. This database 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.

Faults. The Pinto Mountain database is sufficiently detailed to identify and characterize many actual and potential geologic hazards represented by faults, but it is not sufficiently detailed for site-specific determinations or evaluations of these features. Faults shown do not take the place of fault-rupture hazard zones designated by the California State Geologist (see, for example, Hart, 1988; Hart and Bryant, 1997).

Hart, E. W., 1988, Fault-rupture zones in California; Alquist-Priolo Special Studies Zones Act of 1972 with index to special studies zones maps (revised, 1988): California Division of Mines and Geology Special Publication 42.

Hart, E. W., and Bryant, W.A., 1997, Fault-rupture zones in California; Alquist-Priolo Special Studies Zones Act of 1972 with index to special studies zones maps (revised, 1997): California Division of Mines and Geology Special Publication 42.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Robert E. Powell
Contact_Organization:
U.S.Geological Survey, Western Region, Earth Surface Processes Team
Contact_Position: Project geologist
Contact_Address:
Address_Type: mailing address
Address:
U.S. Geological Survey Room 202 West 904 Riverside Avenue
City: Spokane
State_or_Province: Washington
Postal_Code: 99201-1087
Country: USA
Contact_Voice_Telephone: (509) 368-3120
Contact_Facsimile_Telephone: (509) 368-3199
Contact_Electronic_Mail_Address: rpowell@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<http://geopubs.wr.usgs.gov/open-file/of02-xxx/images/pmtn_browse.jpg>
Browse_Graphic_File_Description:
Non-navigable .jpg image of the geologic map, topographic base, Correlation of Map Units, Description of Map Units and key to point and line symbols.
Browse_Graphic_File_Type: .jpg
Browse_Graphic:
Browse_Graphic_File_Name:
<http://geopubs.wr.usgs.gov/open-file/of02-xxx/images/pmtn_map.pdf>
Browse_Graphic_File_Description:
Navigable portable document file (.pdf) image of the geologic map, topographic base, Correlation of Map Units, Description of Map Units and key to point and line symbols.
Browse_Graphic_File_Type: .pdf
Data_Set_Credit:
Geologic mapping, topical studies, and digital preparation for this report were sponsored jointly by the following: (1) the National Cooperative Geologic Mapping Program of the U.S. Geological Survey, (2) California Geological Survey, and (3) the National Park Service (Joshua Tree National Park).

This database was prepared in the GIS laboratory at the Spokane Field Office of the USGS in Spokane, Washington. The facility is maintained primarily by the Mineral Resource Surveys Program and supported in part by the National Geologic Mapping Program.

Technical review by Fred K. Miller has led to significant improvements in the database and in the map plot file. Digital review by Rachel Hauser Alvarez has allowed us to further improve the digital database.

Native_Data_Set_Environment:
SunOS, 5.8, sun4u UNIX ARC/INFO version 8.1
Cross_Reference:
Citation_Information:
Originator: Robert E. Powell
Publication_Date: 2002
Title:
Geologic map and digital database of the San Bernardino Wash 7.5 minute quadrangle, Riverside County, California
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: USGS OF 02-XXX
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: URL:<http://geopubs.wr.usgs.gov/open-file/of02-xxx>
Cross_Reference:
Citation_Information:
Originator: Robert E. Powell
Publication_Date: 2001
Title:
Geologic map and digital database of the Conejo Well 7.5 minute quadrangle, Riverside County, California
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: USGS OF 01-31
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: URL:<http://geopubs.wr.usgs.gov/open-file/of01-31>
Cross_Reference:
Citation_Information:
Originator: Robert E. Powell
Publication_Date: 2001
Title:
Geologic map and digital database of the Porcupine Wash 7.5 minute quadrangle, Riverside County, California
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: USGS OF 01-30
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: URL:<http://geopubs.wr.usgs.gov/open-file/of01-30>
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
This initial version of the Pinto Mountain geologic map database relies extensively on interpretation of aerial photographs; field study of bedrock units was conducted in the context of smaller-scale regional mapping and field study of surficial deposits has been minimal. The map represents the state of knowledge for the quadrangle and provides a basis for gathering additional field data to resolve questions raised in making the map. Attributes assigned to regions, polygons, lines, and points in the Pinto Mountain database are reasonably accurate as determined by the normal range of checks and balances applied in making a geologic map by a combination of hands-on and remote field observation, sampling, and interpretation of aerial photographs. Additional field investigation, however, is required to verify the accuracy of polygon (map unit) attributes and to establish relations among units. Where anomalous descriptive characteristics lead to particular uncertainty of unit assignment of a polygon, the polygon is included within the region feature subclass IDENT, where it is assigned a value of "questionable" in the item UNIT_IDENT. In the Pinto Mountain quadrangle, this attribution has been used chiefly for unit assignments of unvisited polygons that appear anomalous on aerial photographs.
Logical_Consistency_Report:
Polygon and chain-node topology present.

The areal extent of the map is represented digitally by an appropriately projected (Polyconic projection), mathematically generated box. Consequently, polygons intersecting the lines that comprise the map boundary are closed by that boundary. Polygons internal to the map boundary are completely enclosed by line segments which are themselves a set of sequentially numbered coordinate pairs. Point data are represented by coordinate pairs.

Completeness_Report:
The geologic map and digital database of the Pinto Mountain 7.5 minute quadrangle contain new data that have been subjected to rigorous review and are a substantially complete representation of the current state of knowledge concerning the geology of the quadrangle.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Geologic lines are considered to be accurately located if the linear geologic features that they represent are discrete, well exposed, and the horizontal location of the line representing the feature is judged to lie within limits defined by national map accuracy standard. These standards are 1/50 in or +/-40 ft (12 m) for features located on 1:24,000 scale topographic maps and 1/30 in or +/-33.3 ft (10 m) for features located on 1:12,000 scale digital orthophotograph quarter quadrangles (DOQQs). Linear features are considered discrete if they are sharply defined with a width less than or equal to 1/100 in at scale of map (20 ft for features located on 1:24,000 scale topographic maps and 10 ft for features located on 1:12,000 scale DOQQs).

Geologic lines that are not discrete (e.g., gradational or transitional contacts), are not well exposed, or cannot be located within the limits defined by the national map accuracy standard are considered to be approximately located. Linear features in the Pinto Mountain geologic map database are represented as solid, dashed, and dotted lines. Using a DOQQ base, linear features represented by solid lines are located to within 33.3 ft (10 m) or less of their position on the ground. Linear features represented as dashed or dotted lines may or may not be located to within 10 m of their position on the ground. Linear features represented by dotted lines are concealed beneath overlying mapped units.

The accuracy of point features in the Pinto Mountain database is +/-10 ft for points located on the DOQQ base, +/-33 ft for points located on a 1:24,000-scale topographic base, and +/-52 ft for points located on a 1:62,000-scale topographic base. Contacts between lithologic domains that make up surficial deposits as mapped on the DOQQs typically are readily located to within 10 m, but to make domains that can be resolved at 1:24,000 contacts are often drawn by approximating the dominant unit on a percentage basis. Interspersal of well- and approximately located segments is common among the many thousands of contacts present in the Pinto Mountain quadrangle. Given that many quadrangles are being mapped in a relatively short time interval, it was deemed too time-consuming to distinguish well-located and approximately located contacts between surficial deposits; therefore, all surficial contacts are represented as approximately located and shown with a dashed line symbol.

Lineage:
Process_Step:
Process_Description:
Geologic mapping for Ph.D. dissertation (Powell, 1981), supported in part by U.S. Geological Survey Earthquake Hazards Program, and in part by the National Science Foundation grants (EAR 76-23153 and EAR 74-00155) awarded to Leon T. Silver at the California Institute of Technology. Bedrock units and faults mapped in field on 1:36,000 true-color aerial photographs (USGS, 1973), compiled onto a 1:62,500 topographic base map of the Hexie Mountains 15' quadrangle (1963, paper copy), then reduced onto a 125,000 topographic base (base-stable mylar greenline). Bedrock units in the Hexie Mountains quadrangle were mapped, described, and interpreted by conducting field traverses and interpolating between the traverses by interpretation of aerial photographs. This mapping was part of a regional study of the geology and structure of the eastern Transverse Ranges province south of the Pinto Mountain fault.

Powell, R.E., 1981, Geology of the crystalline basement complex, eastern Transverse Ranges, southern California: Constraints on regional tectonic interpretation [Ph.D. thesis]: Pasadena, California Institute of Technology, 441 p.

USGS, 1973, True color aerial photographs labeled GS-SE. Photographs taken along northwest-southeast oriented flight lines covering the eastern Transverse Ranges south of the Pinto Mountain fault. Lines flown at moderate to low sun-angle in October 1973; scale 1:36,000.

Process_Date: 1973-1981
Process_Step:
Process_Description:
Additional observations were made in bedrock units of the Hexie Mountains quadrangle during the course of ongoing geologic studies in the eastern Transverse Ranges province (Powell, 1993).

Powell, R.E., 1993, Balanced palinspastic reconstruction of pre-late Cenozoic paleogeology, southern California: Geologic and kinematic constraints on evolution of the San Andreas fault system, in Powell, R.E., Weldon, R.J., II, and Matti, J.C., eds., The San Andreas fault system: Displacement, palinspastic reconstruction, and geologic evolution: Geological Society of America Memoir 178, p. 1-106.

Process_Date: 1982-1995
Process_Step:
Process_Description:
The geologic map and database for the Pinto Mountain quadrangle was generated by combining the bedrock mapping of previous process-steps with new, larger-scale mapping both of bedrock units and surficial deposits. The new mapping is based chiefly on interpretation of 1:24,000 color photographs (USGS, 1998), 1:40,000 NAPP infrared color photographs (USGS, 1996), and 1:80,000 NHAP infrared color photographs (USGS, 1983-1984) with minimal new fieldwork at this stage. Using ARCVIEW and its Image Analysis extension, geologic contacts, faults, and dikes were mapped on georeferenced USGS digital orthophotograph quarter quadrangles (DOQQs). The lines generated in ARCVIEW were assigned basic attributes and exported to ARCINFO where a line-polygon coverage was generated for the geology layer. This coverage was exported back to ARCVIEW as line and polygon shape files. Polygons were assigned their basic attributes in ARCVIEW and re-exported to ARCINFO for more complete attribution in the full coverage. Polygons in the coverage are attributed to generate the plot-file map. These plot-file map units, as well as other mapped units and aggregates of units that are included in the database but not shown on the plot-file map, are further attributed as region features (groups of polygons). Polygons were aggregated into regions to facilitate the identification, description and subsequent display of either individual rock units or stratigraphic groups of units at various hierarchical levels. Arcs representing fault segments were transferred to a separate coverage and aggregated into routes.

USGS, 1998, True color aerial photographs labeled J.T.N.P. Photographs taken along east-west oriented flight lines covering part of Joshua Tree National Park in Pinto Basin and parts of the Coxcomb, Pinto, Eagle, Cottonwood, Hexie, and Little San Bernardino Mountains. Lines flown at high sun-angle in May 1998; scale 1:24,000.

Process_Date: 1997-2002
Process_Step:
Process_Description:
The source of the base hypsography, hydrography, and culture for the geologic map is the U.S. Geological Survey, 1:24,000-scale topographic map of the Pinto Mountain 7.5 minute quadangle (provisional edition, 1986). The topographic map was photographically reproduced on scale-stable clear film. The resulting blackline photo-positive image was scanned at 500 dpi using an Anatech Eagle 4080 monochrome 800 dpi rasterizing scanner. The raster scan was imported into ARC/INFO, registered and rectified to the Pinto Mountain quadrangle, and saved in GEOTIFF format. Topographic elements on the base map are geospatially located by this process, but no features are attributed. The topographic base map is provided for locational reference only.
Process_Date: 2000
Process_Step:
Process_Description:
To provide a topographic base for the geologic map, the monochromatic raster scan file and the geologic map coverages were converted to ARC/INFO grids, and merged, resulting in the topographic and cultural information drawn in gray and the geologic map unit colors drawn with their respective colors. The combined map is a digital image in which geologic and topographic lines and points are displayed in their proper geospatial locations, but for which no information other than location is attached to the lines and points.
Process_Date: 2002
Process_Step:
Process_Description:
Structural measurements were assembled from three sources. Some measurements of bedding, foliation, lineation, and minor fold axes were located by transferring locations from the 1973 USGS true color aerial photographs (1:36,000) to the digital orthophotograph quarter quadrangles (1:12,000) in ARCVIEW and exporting them to ARCINFO, where the measurement attributes were entered from azimuths recorded in field notes. Other locations of foliation and bedding measurements were transferred from 1:24,000 unpublished field maps of R.A. Hope (University of California, Los Angeles, 1964-1966) to stable-base greenline of the Pinto Mountain 7.5 minute quadrangle and digitized using an Altek Datatab digitizer. Still other foliation locations were transferred from an unpublished geologic map of the Hexie Mountains 15 minute quadrangle by R.A. Hope (University of California, Los Angeles, 1964-1966; U.S. Geological Survey, 1966-1969). Measurement attributes of Hope's data were entered from azimuths recorded in field notes, where available, or by measuring azimuths from strike-and-dip symbols on his maps.
Process_Date: 2002
Process_Step:
Process_Description:
First draft of metadata created by Cossette using FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set /pool5/pool1/cossette/1_joshua/1_pinto/pm_geo1026a
Process_Date: 20011029
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 3303
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 8523
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 3304
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Polyconic
Polyconic:
Longitude_of_Central_Meridian: -115.8125
Latitude_of_Projection_Origin: 33.875
False_Easting: 0.00000
False_Northing: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000001
Ordinate_Resolution: 0.000001
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
The Geologic Map and Digital Database of the Pinto Mountain 7.5 minute quadrangle includes eight double precision ARCINFO coverages: pmtn_geo (geology); pmtn_flt (faults and structural line ornamentation); pmtn_dk (dikes); str_bedding, str_foliation, str_lineatn, and str_mnrflds (structural point data); and pmtn_carto (cartographic elements, geologic unit annotation and leaders). Geospatial entities in ARC/INFO coverages have the following software-defined attributes: <cover>.pat contains AREA, PERIMETER, cover#, and cover-ID; <cover>.aat contains FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, cover#, and cover-ID. User-defined attributes are described in detail below.

(1) The coverage pmtn_geo includes the following feature tables: (a) A polygon attribute table (pmtn_geo.pat) that lists labels for the geological characteristics and identifies plot labels for the rock units represented in the Postscript (.ps) and Portable Document Format (.pdf) plotfiles of the geologic maps; (b) Region subclass attribute tables that describe the geospatial distribution of rock units represented in the Postscript (.ps) and Portable Document Format (.pdf) plotfiles of the geologic maps (pmtn_geo.patrockunit), the hierarchical array of stratigraphic parents of rock units in the crystalline basement (pmtn_geo.patbasement1, pmtn_geo.patbasement2, pmtn_geo.patbasement3, pmtn_geo.patbasement4), the hierarchical array of stratigraphic parents of rock units in sedimentary and volcanic cover to the basement rocks (pmtn_geo.patcover1, pmtn_geo.patcover2), and the hierarchical array of stratigraphic parents of surficial units (pmtn_geo.patsurficial1, pmtn_geo.patsurficial2, pmtn_geo.patsurficial3, pmtn_geo.patsurficial4, pmtn_geo.patsurficial5). This hierarchy of stratigraphic units can be related in ArcInfo, ArcMap or ArcView to display or plot more generalized, derivative geologic maps than that represented in Postscript (.ps) or Portable Document Format (.pdf) files. (c) A region subclass attribute table that describes surface units (veneers) (pmtn_geo.patsurfunit). (d) A region subclass attribute table that describes mixed surface units (pmtn_geo.patmxd_surfunit). (e) A region subclass attribute table that shows those areas where unit identification is uncertain (pmtn_geo.patident). (f) An arc attribute table (pmtn_geo.aat) that describes the contacts that bound rock-unit polygons.

(2) The coverage pmtn_flt contains and displays the complete distribution of fault features within the extent of the Pinto Mountain quadrangle. Structural line ornamentation is included in this layer as point data. Faults are characterized in two route attribute tables (pmtn_flt.ratsegment and pmtn_flt.ratfault).

(3) The coverage pmtn_dk includes an arc attribute table (pmtn_dk.aat) that describes hypabyssal dikes. Dikes are planar intrusive features that intersect the Earth's surface as linear features; they are represented as lines where their surface widths are too narrow to be represented as areal features at a scale of 1:24,000.

(4) The coverages str_bedding, str_foliation, str_lineatn, and str_mnrflds include point attribute tables (<cover_name>.pat) that describe geologic structural point data, including the types and orientation of bedding, foliation, lineation, and minor fold axes, respectively. Annotation subclasses (anno.dip - planar data, anno.plunge - non-planar data) display the dip or plunge value associated with each point datum.

(5) The coverage pmtn_carto includes both geologic unit symbol annotation and an arc attribute table (pmtn_carto.aat) that displays annotation leaders. Unit symbols placed outside the perimeter of a particular polygon are identified by annotation leaders.

Entity_and_Attribute_Detail_Citation: <http://geopubs.wr.usgs.gov/open-file/of02-xx/pmtn_pamph.pdf>
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.pat
Entity_Type_Definition:
Polygon attribute table that stores alphanumeric symbols for units that characterize lithologic type, surface veneer, landform, and age of earth materials represented by each polygon. In addition, the table stores coded stratigraphic unit symbols.
Attribute:
Attribute_Label: POLY_LABEL
Attribute_Definition:
List of alphanumeric symbols that describe geologic characteristics of earth materials represented by each polygon: this attribute is used for data entry.

Concealed units listed in parentheses, surface units in <brackets>.

Map units are described in region feature subclasses.

Attribute:
Attribute_Label: SURF_LABEL
Attribute_Definition:
Alphanumeric symbol for surface material represented by polygon (unique in this dataset)
Attribute:
Attribute_Label: ROCK_LABEL
Attribute_Definition:
Alphanumeric symbol for rock unit represented by polygon (unique in this dataset)
Attribute:
Attribute_Label: POLY_IDENT
Attribute_Definition:
An expression of confidence that a map unit represented by a particular polygon has been correctly identified (certain, likely, or questionable)
Attribute:
Attribute_Label: GMPH_LABEL
Attribute_Definition:
Alphanumeric symbol for geomorphic unit represented by polygon (unique in this dataset).
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: f
Enumerated_Domain_Value_Definition: fan
Enumerated_Domain:
Enumerated_Domain_Value: fp
Enumerated_Domain_Value_Definition: proximal fan
Enumerated_Domain:
Enumerated_Domain_Value: fm
Enumerated_Domain_Value_Definition: medial fan
Enumerated_Domain:
Enumerated_Domain_Value: fd
Enumerated_Domain_Value_Definition: distal fan
Enumerated_Domain:
Enumerated_Domain_Value: vb
Enumerated_Domain_Value_Definition: valley bottom
Attribute:
Attribute_Label: PLOT_LABEL
Attribute_Definition:
Coded symbols used to plot label of geologic units shown on geologic map in Postscript (.ps) and Portable Document Format (.pdf) files. Item can be related to data table, display.plt.
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patrockunit
Entity_Type_Definition:
Geologic units contained in the database that are displayed on the geologic map in the Postscript (.ps) and Portable Document Format (.pdf) files
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Jmiu
Enumerated_Domain_Value_Definition: Mafic and intermediate intrusive suite, undivided (Jurassic)
Enumerated_Domain:
Enumerated_Domain_Value: Jmid
Enumerated_Domain_Value_Definition: Mafic and intermediate intrusive suite, dark unit (Jurassic)
Enumerated_Domain:
Enumerated_Domain_Value: Jpw
Enumerated_Domain_Value_Definition: Granite of Pinto Wash (Late or Middle Jurassic)
Enumerated_Domain:
Enumerated_Domain_Value: Jsbp
Enumerated_Domain_Value_Definition:
Porphyritic quartz monzonite, monzogranite, and granodiorite of San Bernardino Wash (Middle Jurassic)
Enumerated_Domain:
Enumerated_Domain_Value: Prid
Enumerated_Domain_Value_Definition: Dolomite of Iron Chief mine (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prjgg
Enumerated_Domain_Value_Definition: Granite gneiss of Joshua Tree (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prjgr
Enumerated_Domain_Value_Definition: Porphyritic granite of Joshua Tree (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prjmr
Enumerated_Domain_Value_Definition: Metamorphosed regolith (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpgdu
Enumerated_Domain_Value_Definition: Pinto Gneiss, dark unit, undivided (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpgl
Enumerated_Domain_Value_Definition:
Pinto Gneiss, leucocratic granitic orthogneiss (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prppu
Enumerated_Domain_Value_Definition:
Metasedimentary and (or) metamorphosed hydrothermally altered rocks of Pinkham Canyon, undivided (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prppw
Enumerated_Domain_Value_Definition: Siliceous granofels of Wilson Canyon (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpqgd
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, dark gray unit (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpqgl
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, light gray unit (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpqp
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, pelitic unit (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpqw
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, white unit (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq1
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 1 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq2
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 2 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq3
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 3 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq4
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 4 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq5
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 5 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq6
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 6 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq7
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 7 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq8
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 8 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq9
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Unit 9 (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: QTcq
Enumerated_Domain_Value_Definition: Conglomerate, quartzite-clast (Quarternary and (or) Tertiary)
Enumerated_Domain:
Enumerated_Domain_Value: QTpbc
Enumerated_Domain_Value_Definition:
Sedimentary strata of Pinto Basin, conglomerate beds (Pleistocene and (or) Pliocene)
Enumerated_Domain:
Enumerated_Domain_Value: QTpbd
Enumerated_Domain_Value_Definition:
Sedimentary strata of Pinto Basin, debris flow deposits (Pleistocene and (or) Pliocene)
Enumerated_Domain:
Enumerated_Domain_Value: QTpbl
Enumerated_Domain_Value_Definition:
Sedimentary strata of Pinto Basin, lacustrine beds (Pleistocene and (or) Pliocene)
Enumerated_Domain:
Enumerated_Domain_Value: QTpbs
Enumerated_Domain_Value_Definition:
Sedimentary strata of Pinto Basin, sandstone beds (Pleistocene and (or) Pliocene)
Enumerated_Domain:
Enumerated_Domain_Value: QTsu
Enumerated_Domain_Value_Definition: Sedimentary deposits, undivided (Quaternary and (or) Tertiary)
Enumerated_Domain:
Enumerated_Domain_Value: Qcu
Enumerated_Domain_Value_Definition: Colluvial deposits, undivided (Quaternary)
Enumerated_Domain:
Enumerated_Domain_Value: Qoam1
Enumerated_Domain_Value_Definition:
Old alluvial deposits, middle unit 1 (middle and early Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoam2
Enumerated_Domain_Value_Definition: Old alluvial deposits, middle unit 2 (middle? Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoam3
Enumerated_Domain_Value_Definition: Old alluvial deposits, middle unit 3 (late Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoamu
Enumerated_Domain_Value_Definition: Old alluvial deposits, middle unit, undivided (Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoay
Enumerated_Domain_Value_Definition:
Old alluvial deposits, young unit (Holocene? and late Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoc1
Enumerated_Domain_Value_Definition: Old colluvial deposits, Unit 1 (Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoc2
Enumerated_Domain_Value_Definition: Old colluvial deposits, Unit 2 (Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qocu
Enumerated_Domain_Value_Definition: Old colluvial deposits, undivided (Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvoa
Enumerated_Domain_Value_Definition: Very old alluvial deposits (early Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvya1
Enumerated_Domain_Value_Definition: Very young alluvial deposits, Unit 1 (late Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvya2
Enumerated_Domain_Value_Definition: Very young alluvial deposits, Unit 2 (late Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvyau
Enumerated_Domain_Value_Definition: Very young alluvial deposits, undivided (late Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyamg1
Enumerated_Domain_Value_Definition:
Young alluvial deposits, middle unit, gravelly facies 1 (middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyamg2
Enumerated_Domain_Value_Definition:
Young alluvial deposits, middle unit, gravelly facies 2 (middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyamgu
Enumerated_Domain_Value_Definition:
Young alluvial deposits, middle unit, gravelly facies, undivided (middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyams
Enumerated_Domain_Value_Definition:
Young alluvial deposits, middle unit, sandy facies (middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyamu
Enumerated_Domain_Value_Definition:
Young alluvial deposits, middle unit, undivided (middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaog1
Enumerated_Domain_Value_Definition:
Young alluvial deposits, old unit, gravelly facies 1 (middle and (or) early Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaog1r
Enumerated_Domain_Value_Definition:
Young alluvial deposits, old gravelly facies 1, rough surface (middle and (or) early Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaog2
Enumerated_Domain_Value_Definition:
Young alluvial deposits, old gravelly facies 2 (middle and (or) early Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaog2r
Enumerated_Domain_Value_Definition:
Young alluvial deposits, old gravelly facies 2, rough surface (middle and (or) early Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaogu
Enumerated_Domain_Value_Definition:
Young alluvial deposits, old gravelly facies, undivided (middle and (or) early Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaos
Enumerated_Domain_Value_Definition:
Young alluvial deposits, old oxidized sandy unit (middle and (or) early Holocene and late Pleistocene?)
Enumerated_Domain:
Enumerated_Domain_Value: Qyau
Enumerated_Domain_Value_Definition: Young alluvial deposits, undivided (Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyass
Enumerated_Domain_Value_Definition: Young alluvial sand-skirt deposits (Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyayg
Enumerated_Domain_Value_Definition:
Young alluvial deposits, young gravelly facies (late and (or) middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyays
Enumerated_Domain_Value_Definition:
Young alluvial deposits, young sandy facies (late and (or) middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyayu
Enumerated_Domain_Value_Definition:
Young alluvial deposits, young unit, undivided (late and (or) middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvyye
Enumerated_Domain_Value_Definition: Very young and (or) young eolian deposits (Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvyyp
Enumerated_Domain_Value_Definition: Very young and (or) young playa deposits (Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Ts
Enumerated_Domain_Value_Definition: Sedimentary deposits (late? and middle Miocene)
Enumerated_Domain:
Enumerated_Domain_Value: Tb
Enumerated_Domain_Value_Definition: Basalt (late and middle Miocene)
Enumerated_Domain:
Enumerated_Domain_Value: TJdu
Enumerated_Domain_Value_Definition: Dike rocks, undivided (Tertiary, Cretaceous, and (or) Jurassic)
Enumerated_Domain:
Enumerated_Domain_Value: TJh
Enumerated_Domain_Value_Definition: Hypabyssal intrusive rocks (Tertiary, Cretaceous, or Jurassic)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patbasement1
Entity_Type_Definition:
First-order stratigraphic parents of crystalline basement rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Jmi
Enumerated_Domain_Value_Definition: Mafic and intermediate intrusive suite
Enumerated_Domain:
Enumerated_Domain_Value: Jsb
Enumerated_Domain_Value_Definition:
Quartz monzonite, monzogranite, and granodiorite of San Bernardino Wash (Middle Jurassic)
Enumerated_Domain:
Enumerated_Domain_Value: Prjg
Enumerated_Domain_Value_Definition:
Porphyritic granite and granite gneiss of Joshua Tree (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpp
Enumerated_Domain_Value_Definition:
Metasedimentary and (or) metamorphosed hydrothermally altered rocks of Pinkham Canyon (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpqg
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, gray unit (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq1-4
Enumerated_Domain_Value_Definition:
Quartzite of Pinto Mountain, Units 1 to 4, undivided (Middle or Early Proterozoic)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patbasement2
Entity_Type_Definition:
Second-order stratigraphic parents of crystalline basement rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Prpgd
Enumerated_Domain_Value_Definition: Pinto Gneiss, dark unit (Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpq
Enumerated_Domain_Value_Definition: Quartzite of Pinto Mountain (Middle or Early Proterozoic)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patbasement3
Entity_Type_Definition:
Third-order stratigraphic parents of crystalline basement rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Prems
Enumerated_Domain_Value_Definition:
Metasedimentary rocks of Eagle Mountains assemblage (Middle or Early Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prpg
Enumerated_Domain_Value_Definition: Pinto Gneiss of Miller, 1938 (Early Proterozoic)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patbasement4
Entity_Type_Definition:
Fourth-order stratigraphic parents of crystalline basement rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Pre
Enumerated_Domain_Value_Definition: Eagle Mountains assemblage (Proterozoic)
Enumerated_Domain:
Enumerated_Domain_Value: Prhga
Enumerated_Domain_Value_Definition: Gneiss assemblage of Hexie Mountains (Early Proterozoic)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patsurficial1
Entity_Type_Definition: First-order stratigraphic parents of surficial rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qyamg
Enumerated_Domain_Value_Definition: Young alluvial deposits, middle gravelly facies (Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyaog
Enumerated_Domain_Value_Definition: Young alluvial deposits, old gravelly facies (Holocene)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patsurficial2
Entity_Type_Definition: Second-order stratigraphic parents of surficial rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qoam
Enumerated_Domain_Value_Definition: Old alluvial deposits, middle unit (Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyam
Enumerated_Domain_Value_Definition: Young alluvial deposits, middle unit (middle Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyao
Enumerated_Domain_Value_Definition: Young alluvial deposits, old unit (middle and early Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qyay
Enumerated_Domain_Value_Definition: Young alluvial deposits, young unit (late and middle Holocene)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patsurficial3
Entity_Type_Definition: Third-order stratigraphic parents of surficial rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qoa
Enumerated_Domain_Value_Definition: Old alluvial deposits (Holocene? and Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvya
Enumerated_Domain_Value_Definition: Very young alluvial deposits (late Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qya
Enumerated_Domain_Value_Definition: Young alluvial deposits (Holocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qoc
Enumerated_Domain_Value_Definition: Old colluvial deposits (Pleistocene)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patsurficial4
Entity_Type_Definition: Fourth-order stratigraphic parents of surficial rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qovoa
Enumerated_Domain_Value_Definition: Old and very old alluvial deposits (Pleistocene)
Enumerated_Domain:
Enumerated_Domain_Value: Qvyya
Enumerated_Domain_Value_Definition: Very young and young alluvial deposits (Holocene)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patsurficial5
Entity_Type_Definition: Fifth-order stratigraphic parents of surficial rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qa
Enumerated_Domain_Value_Definition: Alluvial deposits (Quaternary)
Enumerated_Domain:
Enumerated_Domain_Value: Qc
Enumerated_Domain_Value_Definition: Colluvial deposits (Quaternary)
Enumerated_Domain:
Enumerated_Domain_Value: QTa
Enumerated_Domain_Value_Definition: Alluvial deposits (Quaternary and (or) Tertiary)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patcover1
Entity_Type_Definition: First-order stratigraphic parents of cover rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: QTpb
Enumerated_Domain_Value_Definition:
Sedimentary strata of Pinto Basin (Pleistocene and (or) Pliocene)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patcover2
Entity_Type_Definition: Second-order stratigraphic parents of cover rock units
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: QTs
Enumerated_Domain_Value_Definition: Sedimentary deposits (Pleistocene and (or) Pliocene)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patsurfunit
Entity_Type_Definition: Surface units (veneers)
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Surface unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qvyye
Enumerated_Domain_Value_Definition: Discontinuous Qvyye veneer on mapped unit
Enumerated_Domain:
Enumerated_Domain_Value: Qocu
Enumerated_Domain_Value_Definition: Discontinuous Qocu veneer on mapped unit
Enumerated_Domain:
Enumerated_Domain_Value: Qyams
Enumerated_Domain_Value_Definition: Continuous Qyams veneer on underlying Qyaos unit
Enumerated_Domain:
Enumerated_Domain_Value: Qocu, Qvyye
Enumerated_Domain_Value_Definition: Discontinuous Qvyye and Qocu veneers on mapped unit
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patmxd_surfunit
Entity_Type_Definition: Mixed surface units (veneers)
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Surface unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qocu, Qvyye
Enumerated_Domain_Value_Definition: Discontinuous Qvyye and Qocu veneers on mapped underlying unit
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.patident
Entity_Type_Definition: Confidence in rock-unit identification
Attribute:
Attribute_Label: UNIT_IDENT
Attribute_Definition:
An expression of confidence that the rock unit areas encompassed by the region have been identified correctly.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: questionable
Enumerated_Domain_Value_Definition:
Identity of unit is attributed as questionable where unit assignment based on interpretation of aerial photographs is uncertain.
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_geo.aat
Entity_Type_Definition:
Geologic contacts, including fault contacts, that bound rock-unit polygons and map boundary
Attribute:
Attribute_Label: CLASS_TYPE
Attribute_Definition: Classification of contact by type
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: cartographic, map boundary
Enumerated_Domain_Value_Definition:
The map boundary forms part of the perimeter of polygons that occur along the margins of the map.
Enumerated_Domain:
Enumerated_Domain_Value: contact
Enumerated_Domain_Value_Definition:
Boundary between two rock units; formed as fault, intrusive border, bedding plane, or unconformity
Enumerated_Domain:
Enumerated_Domain_Value: facies boundary
Enumerated_Domain_Value_Definition:
Intra-unit lithologic boundary between coeval deposits derived either from different source terranes or from different drainage basins in the same source terrane
Enumerated_Domain:
Enumerated_Domain_Value: fault-line scarp
Enumerated_Domain_Value_Definition: Steep slope formed by differential erosion along a fault line
Attribute:
Attribute_Label: CLASS_ORIG
Attribute_Definition: Classification of contact by origin
Attribute:
Attribute_Label: MOD_SEQ
Attribute_Definition: Sequence of processes by which contact has been modified
Attribute:
Attribute_Label: CLASS_ALT
Attribute_Definition: Alternative classification of type of contact
Attribute:
Attribute_Label: AGE_PREF
Attribute_Definition: Preferred age of contact
Attribute:
Attribute_Label: AGE_LINEAGE
Attribute_Definition: Hierarchical age list of linear feature
Attribute:
Attribute_Label: DESCRIPTION
Attribute_Definition: Contact description
Attribute:
Attribute_Label: SYMB
Attribute_Definition:
Coded integer symbol that relates arc to cartographic line symbol in lineset (geoscamp2.lin)
Attribute:
Attribute_Label: DEFINITION
Attribute_Definition: Degree to which contact is discrete
Attribute:
Attribute_Label: EXPOSURE
Attribute_Definition:
An expression of how well a contact is represented by a line (discrete or nondiscrete)
Attribute:
Attribute_Label: SOURCE_DATA
Attribute_Definition: Data source for contact
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_flt.aat
Entity_Type_Definition: Faults
Attribute:
Attribute_Label: CLASS_TYPE
Attribute_Definition: Classification of fault by type (fault)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: fault
Enumerated_Domain_Value_Definition:
Surface or zone of surfaces separating two bodies of rock and across which one body has slid past the other
Attribute:
Attribute_Label: CLASS_ALT
Attribute_Definition: Alternative classification of fault
Attribute:
Attribute_Label: EXPOSURE
Attribute_Definition: Degree to which fault is exposed
Attribute:
Attribute_Label: LOCATION
Attribute_Definition: Accuracy of horizontal position of fault on input base map
Attribute:
Attribute_Label: SYMB
Attribute_Definition:
Coded integer symbol that relates arc to cartographic line symbol in lineset (geoscamp2.lin)
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_flt.ratsegment
Entity_Type_Definition:
Fault segments: Arcs between or extending from fault intersections
Attribute:
Attribute_Label: FLTSEG_ID
Attribute_Definition: Unique identification of fault segment
Attribute:
Attribute_Label: ANGLE
Attribute_Definition: Classification by angle of dip
Attribute:
Attribute_Label: SEPARATION
Attribute_Definition: Classification by separation on fault segments
Attribute:
Attribute_Label: SLIP
Attribute_Definition: Classification by slip on fault segment
Attribute:
Attribute_Label: FLT_LITH
Attribute_Definition: Lithologic material that constitutes fault segment
Attribute:
Attribute_Label: AGE
Attribute_Definition:
Age interval during which movement has occurred along fault segment
Attribute:
Attribute_Label: FLTSEG_DFN
Attribute_Definition:
An expression of how well a fault segment is represented by a line (discrete or nondiscrete)
Attribute:
Attribute_Label: BASIS
Attribute_Definition: Basis for representation of fault segment
Attribute:
Attribute_Label: CONFIDENCE
Attribute_Definition:
An expression of confidence that a fault segment has been correctly identified
Attribute:
Attribute_Label: SOURCE
Attribute_Definition: Data source for fault segment
Attribute:
Attribute_Label: FLTSEG_DSC
Attribute_Definition: Description of fault segment
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_flt.ratfault
Entity_Type_Definition:
Faults, fault strands, fault zones, fault systems, and fault groups
Attribute:
Attribute_Label: SEPARATION
Attribute_Definition:
Classification by separation on fault, fault strand, fault zone, fault system or fault group
Attribute:
Attribute_Label: SLIP
Attribute_Definition:
Classification by slip on fault, fault strand, fault zone, fault system or fault group
Attribute:
Attribute_Label: AGE
Attribute_Definition:
Age interval during which movement occurred on fault, fault strand, fault zone, fault system or fault group
Attribute:
Attribute_Label: FLTNAME
Attribute_Definition:
Name of fault, fault strand, fault zone, fault system or fault group
Attribute:
Attribute_Label: MECH_REG
Attribute_Definition: Classification of fault by mechanical regime
Attribute:
Attribute_Label: KINEM_REG
Attribute_Definition: Classification of fault by kinematic regime
Attribute:
Attribute_Label: TECT_GEN
Attribute_Definition: Genetic classification of fault by tectonic system
Attribute:
Attribute_Label: FLT_DESC
Attribute_Definition:
Description of fault, fault strand, fault zone, fault system or fault group
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_dk.aat
Entity_Type_Definition: Dikes
Attribute:
Attribute_Label: SYMB
Attribute_Definition:
Coded integer symbol that relates arc to cartographic line symbol in lineset (geoscamp2.lin)
Attribute:
Attribute_Label: UNIT_LABL
Attribute_Definition: Rock-unit label
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: TJdu
Enumerated_Domain_Value_Definition: Dike, undivided (Tertiary, Cretaceous, or Jurassic)
Detailed_Description:
Entity_Type:
Entity_Type_Label: str_bedding.pat
Entity_Type_Definition:
Planar structural point data showing bedding orientation (strike, dip, direction of dip)
Detailed_Description:
Entity_Type:
Entity_Type_Label: str_foliation.pat
Entity_Type_Definition:
Planar structural point data showing foliation orientation (strike, dip, direction of dip)
Detailed_Description:
Entity_Type:
Entity_Type_Label: str_lineatn.pat
Entity_Type_Definition:
Linear structural point data showing lineation orientation (bearing, plunge)
Detailed_Description:
Entity_Type:
Entity_Type_Label: str_mnrflds.pat
Entity_Type_Definition:
Linear structural point data showing minor fold axis orientation (bearing, plunge)
Detailed_Description:
Entity_Type:
Entity_Type_Label: ru_summ.dsc
Entity_Type_Definition:
Table that summarizes name, age, origin, and lithology of rock units.
Attribute:
Attribute_Label: UNIT_LABEL
Attribute_Definition: Alphanumeric symbol
Attribute:
Attribute_Label: UNIT_NAME
Attribute_Definition: Name of rock unit
Attribute:
Attribute_Label: AGEPAR_LS
Attribute_Definition:
List of age names in parent lineage of rock unit stratigraphic age indicated in unit label
Attribute:
Attribute_Label: AGE_LABEL
Attribute_Definition: Name of stratigraphic age of rock unit indicated in unit label
Attribute:
Attribute_Label: AGECHLD_LS
Attribute_Definition:
List of names in child lineage of rock unit stratigraphic age indicated in unit label
Attribute:
Attribute_Label: ARCH_LEVEL
Attribute_Definition:
Present-day architectural level of rock unit (crystalline basement, cover, surficial deposit, surface veneer)
Attribute:
Attribute_Label: ENVIR_ORIG
Attribute_Definition:
Hierarchical list of classification terms for origin and environment of formation of rock unit
Attribute:
Attribute_Label: UNIT_TYPE
Attribute_Definition: Type of rock unit
Attribute:
Attribute_Label: ROCK_FORM
Attribute_Definition: Form or landform of rock unit body
Attribute:
Attribute_Label: LITH_GROUP
Attribute_Definition: List of parent lithologic groups to which rock unit belongs
Attribute:
Attribute_Label: LITH_PRINC
Attribute_Definition: Principal lithologic components of rock unit
Attribute:
Attribute_Label: LTH_SUBORD
Attribute_Definition: Subordinate lithologic components of rock unit
Attribute:
Attribute_Label: LITH_MINOR
Attribute_Definition: Minor lithologic components of rock unit
Detailed_Description:
Entity_Type:
Entity_Type_Label: display.plt
Entity_Type_Definition:
Data table that stores display criteria and data (rock unit colors/SHD, patterns/SHDFIL) to facilitate plotting of derivative maps. Symbolsets represented are: scamp2.shd (colors), geology2.shd (patterns).
Detailed_Description:
Entity_Type:
Entity_Type_Label: overlay.lut
Entity_Type_Definition:
Data (lookup) table that stores symbols that allow surface veneers to be represented as pattern overlays.
Detailed_Description:
Entity_Type:
Entity_Type_Label: mxd_overlay.lut
Entity_Type_Definition:
Data (lookup) table that stores symbols that allow mixed surface veneers to be represented as pattern overlays.
Detailed_Description:
Entity_Type:
Entity_Type_Label: colors
Entity_Type_Definition:
An INFO relate created by the map author relating display.plt by UNIT_LABEL
Detailed_Description:
Entity_Type:
Entity_Type_Label: pmtn_carto.aat
Entity_Type_Definition:
Annotation leaders and rock_unit labels derived from pmtn_geo.pat, plot_label
Attribute:
Attribute_Label: SYMB
Attribute_Definition:
Coded integer symbol (1) that relates arcs to cartographic line symbol in lineset (geoscamp2.lin)
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Information Services
Contact_Address:
Address_Type: mailing address
Address: Box 25286 Denver Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-202-4700
Contact_Facsimile_Telephone: 303-202-4693
Distribution_Liability:
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 delivery, installation, operation, or support by USGS.

This digital, geologic map database of the Pinto Mountain 7.5'quadrangle, and any derivative maps thereof, is not meant to be used or displayed at any map scale larger than 1:12,000 on the DOQQ base or 1:24,000 on the topograhic base.

Metadata_Reference_Information:
Metadata_Date: 20030107
Metadata_Review_Date: 2002
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Pamela M. Cossette
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing address
Address:
U.S. Geological Survey West 904 Riverside Avenue
City: Spokane
State_or_Province: Washington
Postal_Code: 99201-1087
Country: USA
Contact_Voice_Telephone: 509-368-3123
Contact_Facsimile_Telephone: 509-368-3199
Contact_Electronic_Mail_Address: pcossette@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none
Generated by mp version 2.6.0 on Tue Jan 7 15:53:09 2003

 

 

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/2002/0491/pmtn_met.html
Page Contact Information: Contact USGS
Page Last Modified: Wednesday, December 07, 2016, 07:27:55 PM