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Geologic map and digital database of the San Rafael Mtn. 7.5- minute Quadrangle, Santa Barbara County, California

Metadata also available as - [Questions & Answers] - [Parseable text] - [DIF]

Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Vedder, J.G.

Originator: Stanley, R.G.

Originator: Graham, S.E.

Originator: Valin, Z.C.

Publication_Date: 2001

Title:

Geologic map and digital database of the San Rafael Mtn. 7.5- minute Quadrangle, Santa Barbara County, California

Edition: 1.0

Geospatial_Data_Presentation_Form: geologic map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 01-290

Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey

Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of01-290>

Description:

Abstract:: This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (srm_expl.txt, srm_expl.pdf), it provides current information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.
Purpose:: This database and accompanying plot files depict the distribution of geologic materials and structures at a regional (1:24,000) scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide potential, mineral hazards, mineral and energy resources, seismic velocity, and earthquake faults. In addition, the report contains new information and interpretations about the regional geologic history and framework. However, the regional scale of this report does not provide sufficient detail for site development purposes. In addition, this map does not take the place of fault-rupture hazard zones designated by the California State Geologist (Hart and Bryant, 1997). Similarly, the database cannot be substituted for comprehensive maps that systematically identify and classify landslide hazards.
Supplemental_Information:: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are COVERAGE (ARC/INFO vector data) format. Coverages are stored in uncompressed ARC export format (ARC/INFO version 8.0. 2). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.1 to 3.11 is available for free from ESRI's web site: <http://www.esri.com>). The digital compilation was done in version 7.2.1 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The geologic map information was digitized from stable originals of the geologic maps at 1:24,000 scale. The author manuscripts (pen on mylar) were scanned using a Altek monochrome scanner with a resolution of 800 dots per inch. The scanned images were vectorized and transformed from scanner coordinates to projection coordinates with digital tics placed by hand at quadrangle corners. The scanned lines were edited interactively by hand using ALACARTE, color boundaries were tagged as appropriate, and some scanning artifacts visible at 1:24,000 were removed.
This report consists of a set of geologic map database files (Arc/Info coverages) and supporting text and plotfiles. In addition, the report includes two sets of plotfiles (PostScript and PDF format) that will generate map sheets and pamphlets similar to a traditional USGS Open-File Report. These files are described in the explanatory pamphlets (srm.ps, srm.pdf, and srm.txt). The base map layers used in the preparation of the geologic map plotfiles were scanned from a scale-stable version of the USGS 1:24,000 topographic maps of the San Rafael Mtn. (1959, photorevised 1988) 7.5-minute quadrangle. The map has a 40 foot contour interval.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Currentness_Reference:

The date given is the publication date. The information in the report is the most up-to-date available at the time of publication.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -119.8749999
East_Bounding_Coordinate: -119.74990599
North_Bounding_Coordinate: 34.74999996
South_Bounding_Coordinate: 34.62498399

Keywords:

Theme:

Theme_Keyword_Thesaurus: none
Theme_Keyword: geology
Theme_Keyword: bedrock geology
Theme_Keyword: surficial geology
Theme_Keyword: geologic history
Theme_Keyword: Franciscan complex
Theme_Keyword: geologic structures
Theme_Keyword: Big Pine fault
Theme_Keyword: Hildreth fault
Theme_Keyword: Little Pine fault
Theme_Keyword: Mission Pine anticline
Theme_Keyword: Hurricane Deck Syncline
Theme_Keyword: Camuesa fault
Theme_Keyword: geologic map
Theme_Keyword: digital database

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: United States of America
Place_Keyword: California
Place_Keyword: Santa Barbara County

Stratum:

Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Landslide deposits
Stratum_Keyword: Young alluvium
Stratum_Keyword: Old alluvium
Stratum_Keyword: Paso Robles(?) Formation
Stratum_Keyword: Careaga Sandstone
Stratum_Keyword: Unnamed sandstone intrusive into the Monterey Formation
Stratum_Keyword: Unnamed intrusive and extrusive rocks
Stratum_Keyword: Monterey Formation
Stratum_Keyword: Hurricane Deck Formation of Thomas and others (1988)
Stratum_Keyword: Unnamed mudstone
Stratum_Keyword: Unnamed sandstone
Stratum_Keyword: Vaqueros(?) Formation
Stratum_Keyword: Simmler(?) Formation
Stratum_Keyword: Mudstone and subordinate sandstone
Stratum_Keyword: Sandstone and subordinate mudstone and conglomerate
Stratum_Keyword: Mudstone and subordinate sandstone
Stratum_Keyword: Sandstone, mudstone, and subordinate conglomerate
Stratum_Keyword: Sandstone and subordinate mudstone
Stratum_Keyword: Mudstone and subordinate sandstone
Stratum_Keyword: Espada Formation of Dibblee (1950, 1966)
Stratum_Keyword: Franciscan Complex
Stratum_Keyword: Serpentinite

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: Mesozoic
Temporal_Keyword: Jurassic
Temporal_Keyword: Cretaceous
Temporal_Keyword: Cenozoic
Temporal_Keyword: Tertiary
Temporal_Keyword: Paleocene
Temporal_Keyword: Oligocene
Temporal_Keyword: Miocene
Temporal_Keyword: Pliocene
Temporal_Keyword: Quaternary
Temporal_Keyword: Pleistocene
Temporal_Keyword: Holocene

Place:

Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0
Place_Keyword: 06083 = Santa Barbara

Access_Constraints: None

Use_Constraints:

Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:24,000 means that higher resolution information is 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 below the intended resolution of the database. Similarly, 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.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Western Earth Surface Processes Team
Contact_Person: Database coordinator

Contact_Address:

Address_Type: mailing address
Address: 345 Middlefield Road, MS 975
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA

Browse_Graphic:

Browse_Graphic_File_Name: <http://geopubs.wr.usgs.gov/open-file/of01-290/images/srm.gif>
Browse_Graphic_File_Description:: Reduced-size image of the entire map sheet, 205x202 pixels, 32-bit RGB true color.
Browse_Graphic_File_Type: GIF

Data_Set_Credit:

Reconnaissance geologic mapping by H.E. Clifton, D.L. Durham, H. D. Gower, and J.G. Vedder, April-May 1965. Selective geologic mapping, including helicopter overflights, by Hugh McLean and J. G. Vedder, September 1980; September 1981. Detailed geologic mapping of Franciscan Complex by A.D. Wahl, 1990-1992. Detailed geologic mapping by R.G. Stanley and J.G. Vedder, September 1996; June, September, and October 1997. Detailed geologic mapping by R.G. Stanley, June, September, and October 1998.
We thank the United States Department of Agriculture, U.S. Forest Service, for facilitating access to remote parts of the Los Padres National Forest, and the owners and employees of Rancho San Fernando Rey for providing access to private lands. We also thank R.E. Denison (University of Texas at Dallas) for providing a strontium isotopic age on shell material from the unnamed Miocene sandstone (unit Tss); Scott Graham, Zenon Valin, and Todd Fitzgibbon (U.S. Geological Survey, Menlo Park) for assisting with digital preparation of the map; Robert G. Bohannon (U.S. Geological Survey, Menlo Park) and Scott A. Minor (U.S. Geological Survey, Denver, CO) for technical reviews; and Paul Stone (U.S. Geological Survey, Menlo Park) for suggestions that improved the clarity of the map and accompanying materials.

Native_Data_Set_Environment: SunOS, 5.5.1, sun4u UNIX, ARC/INFO version 7.2.1

Data_Quality_Information:

Logical_Consistency_Report: Polygon and chain-node topology present

Completeness_Report:

The report is intended to describe completely the surficial deposits and bedrock geology at 1:24,000 scale. Geologic information only mappable at larger scale has been omitted.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: Well located data items are intended to have a horizontal positional accuracy within .5 mm at 1:24,000 scale, or within 12 meters on the ground. The general positional accuracy of each line in the database is indicated within the LTYPE field in the Arc Attribute Table (see below). Points in the database are generally considered to be well located. The position of each data item is derived from the USGS topographic base map, and therefore additional inaccuracies arising from inaccuracies in the base map may also be encountered.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Gower, H.D.

Originator: Vedder, J.G.

Originator: Clifton, H.E.

Originator: Post, E.V.

Title: Mineral resources of the San Rafael Primitive Area, California

Publication_Date: 1966

Series_Information:

Series_Name: U.S. Geological Survey Bulletin
Issue_Identification: 1230-A

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1966

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Gower and others (1966)

Source_Contribution:

Geologic mapping of the San Rafael Primitive Area (now the San Rafael Wilderness) by Gower and others (1966) and Vedder and others (1967) did not include all of the San Rafael Mtn. quadrangle, and the part that was mapped was done in reconnaissance fashion. To help resolve some of the structural and stratigraphic ambiguities of the earlier mapping and to complete the mapping of the quadrangle, additional field work was done during short intervals in 1980 and 1981 and from 1996 to 1998.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Vedder, J.G.

Originator: Gower, H.D.

Originator: Clifton, H.E.

Originator: Durham, D.L.

Title:

Reconnaissance geologic map of the central San Rafael Mountains and vicinity, Santa Barbara County, California

Publication_Date: 1967

Series_Information:

Series_Name:: U.S. Geological Survey Miscellaneous Geologic Investigations Map
Issue_Identification: I-487

Source_Scale_Denominator: 48000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1967

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Vedder and others (1967)

Source_Contribution:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Wahl, A.D.

Title:

Cenozoic deformation of the Franciscan Complex, eastern Santa Maria basin, California

Publication_Date: 1998

Series_Information:

Series_Name: U.S. Geological Survey Bulletin
Issue_Identification: 1995-W

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Wahl (1998)

Source_Contribution:

Contacts within the belt of Franciscan rocks at the southwestern corner of the quadrangle were generalized from the detailed map by Wahl (1998).

Process_Step:

Process_Description:: Geologic mapping of the San Rafael Primitive Area (now the San Rafael Wilderness) by Gower and others (1966) and Vedder and others (1967) did not include all of the San Rafael Mtn. quadrangle, and the part that was mapped was done in reconnaissance fashion. To help resolve some of the structural and stratigraphic ambiguities of the earlier mapping and to complete the mapping of the quadrangle, additional field work was done during short intervals in 1980 and 1981 and from 1996 to 1998.
Contacts within the belt of Franciscan rocks at the southwestern corner of the quadrangle were generalized from the detailed map by Wahl (1998).
Because extensive areas were inaccessible owing to impenetrable chaparral, observations from several helicopter overflights (1965, 1980, 1981) and interpretations from aerial photographs were used as compilation aids. Consequently, some of the depicted contacts and faults are highly inferential, particularly within the Upper Cretaceous rocks throughout the middle part of the quadrangle.
Source_Used_Citation_Abbreviation: Gower and others (1966)
Source_Used_Citation_Abbreviation: Vedder and others (1967)
Source_Used_Citation_Abbreviation: Wahl (1998)
Process_Date: 1965 - 1998

Process_Step:

Process_Description:: Geologic linework was scanned, converted to vector data, and edited on-screen to repair errors visible at map scale. Polygon topology was created and each polygon tagged on- screen. Structural information was digitized by hand on- screen. Plotfiles were created in ArcPlot.
Process_Date: 2000

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Polyconic

Polyconic:

Longitude_of_Central_Meridian: -119.8125
Latitude_of_Projection_Origin: 34.625
False_Easting: 0.0
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 1.0
Ordinate_Resolution: 1.0

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: NAD27
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: SRM_GEO.PAT
Entity_Type_Definition: Attribute table of SRM_GEO.PAT.
Entity_Type_Definition_Source: ARC/INFO

Attribute:

Attribute_Label: PTYPE

Attribute_Definition: Geologic unit label

Attribute_Definition_Source: author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJe
Enumerated_Domain_Value_Definition: Espada Formation of Dibblee, 1950 and 1966

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KJf
Enumerated_Domain_Value_Definition: Franciscan Complex

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Km
Enumerated_Domain_Value_Definition: Mudstone and subordinate sandstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ks
Enumerated_Domain_Value_Definition: Sandstone and subordinate mudstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ksm
Enumerated_Domain_Value_Definition: Mudstone and subordinate sandstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Kss
Enumerated_Domain_Value_Definition: Sandstone and subordinate mudstone and conglomerate

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ku
Enumerated_Domain_Value_Definition: Sandstone, mudstone, and subordinate conglomerate

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: QTprf
Enumerated_Domain_Value_Definition: Paso Robles(?) Formation

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qls
Enumerated_Domain_Value_Definition: Landslide deposits

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa1
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa2
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa3
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa4
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa5
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qoa6
Enumerated_Domain_Value_Definition: Old alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qya
Enumerated_Domain_Value_Definition: Young alluvium

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: TKs
Enumerated_Domain_Value_Definition: Mudstone and subordinate sandstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tca
Enumerated_Domain_Value_Definition: Careaga Sandstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Th
Enumerated_Domain_Value_Definition: Hurricane Deck Formation of Thomas and others (1988)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ti
Enumerated_Domain_Value_Definition: Unnamed intrusive and extrusive rocks

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tm
Enumerated_Domain_Value_Definition: Monterey Formation

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tmc
Enumerated_Domain_Value_Definition: Unnamed mudstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Ts
Enumerated_Domain_Value_Definition: Simmler(?) Formation

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tsi
Enumerated_Domain_Value_Definition: Unnamed sandstone intrusive into the Monterey Formation

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tss
Enumerated_Domain_Value_Definition: Unnamed sandstone

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tv
Enumerated_Domain_Value_Definition: Vaqueros(?) Formation

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sp
Enumerated_Domain_Value_Definition: Serpentinite

Detailed_Description:

Entity_Type:

Entity_Type_Label: SRM_GEO.AAT
Entity_Type_Definition: Attribute table of SRM_GEO.
Entity_Type_Definition_Source: ARC/INFO

Attribute:

Attribute_Label: LTYPE

Attribute_Definition:

Type of geologic or geographic feature denoted by a line in the database.

Attribute_Definition_Source: author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, approx. located
Enumerated_Domain_Value_Definition:: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:24,000) or within about 48 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, certain
Enumerated_Domain_Value_Definition:: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has been observed or is closely constrained, so it is well-located as described in Positional_Accuracy.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: contact, inferred
Enumerated_Domain_Value_Definition:: Boundary between two mapped units that retains the original depositional or intrusive relationship (i.e. not faulted). The contact has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground. The existence of the contact is inferred from structural and stratigraphic relationships observed elsewhere.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, approx. located
Enumerated_Domain_Value_Definition:: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:24,000) or within about 48 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, certain
Enumerated_Domain_Value_Definition:: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has been observed or is closely constrained, so it is well-located as described in Positional_Accuracy.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, concealed
Enumerated_Domain_Value_Definition:: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault is obscured by overlying mapped units, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fault, inferred
Enumerated_Domain_Value_Definition:: Structural boundary between mapped units or structural discontinuity within a mapped unit that has experienced relative offset between the rock bodies on either side of the fault. The fault has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground. The existence of the fault is inferred from structural and stratigraphic relationships observed elsewhere.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: map boundary
Enumerated_Domain_Value_Definition:: Edge of the mapped area. Used primarily to bound polygons at the edge of the map database. The location of the boundary is well located as described in Positional_Accuracy.

Detailed_Description:

Entity_Type:

Entity_Type_Label: SRM_STR.PAT
Entity_Type_Definition: Attribute table of SRM_STR.
Entity_Type_Definition_Source: ARC/INFO

Attribute:

Attribute_Label: PTTYPE

Attribute_Definition:

The type of planar feature which was observed and the orientation of which was measured at this point.

Attribute_Definition_Source: author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: apparent dip of beds
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The true strike and dip of the layers could not be ascertained. The angle between the layers and the horizontal was measured by a geologist standing at an observation point that may or may not have been located along the strike of bedding.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: bedding estimated from afar
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The strike and dip of these layers were measured by a geologist standing more than about 12 m from this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: bedding estimated from airphoto
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The strike and dip of these layers were estimated by a geologist using aerial photographs.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: bedding measured on ground
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The strike and dip of these layers were measured by a geologist standing on the ground at this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: flat bedding
Enumerated_Domain_Value_Definition:: Horizontal sedimentary layers were observed at this point, either on the ground or on aerial photographs.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ot bedding estimated from afar
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The strike and dip of these layers were measured by a geologist standing more than about 12 m from this point. In addition, sedimentary structures or other features were observed at or near this point that showed the layers were overturned.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ot bedding estimated from airphoto
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The strike and dip of these layers were estimated by a geologist using aerial photographs. In addition, sedimentary structures or other features were observed at or near this point that showed the layers were overturned.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ot bedding measured on ground
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. The strike and dip of these layers were measured by a geologist standing on the ground at this point. In addition, sedimentary structures or other features were observed at or near this point that showed the layers were overturned.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: vert bedding est. from airphoto
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. These layers are now vertical. The strike of these layers was estimated by a geologist using aerial photographs.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: vert bedding estimated from afar
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. These layers are now vertical. The strike of these layers was measured by a geologist standing more than about 12 m from this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: vert bedding measured on ground
Enumerated_Domain_Value_Definition:: Originally horizontal sedimentary layers were observed at this point. These layers are now vertical. The strike of these layers was measured by a geologist standing on the ground at this point.

Attribute:

Attribute_Label: DIP

Attribute_Definition:

The inclination of planar structures measured in degrees down from horizontal.

Attribute_Definition_Source: author

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 90
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: STRIKE

Attribute_Definition:

The orientation of a horizontal line in an inclined planar structure measured in degrees clockwise from north.

Attribute_Definition_Source: author

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 359
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Detailed_Description:

Entity_Type:

Entity_Type_Label: SRM_STR.AAT
Entity_Type_Definition: Attribute table of SRM_STR.
Entity_Type_Definition_Source: ARC/INFO

Attribute:

Attribute_Label: LTYPE

Attribute_Definition:

The type of fold axis or other structural linear feature that does not bound geologic units. Faults and contacts are described in a separate coverage.

Attribute_Definition_Source: author

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, approx. located
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an anticline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, certain
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an anticline. The axis has been observed or is closely constrained, so it is well-located as described in Positional_Accuracy.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, concealed
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an anticline. The axis is obscured by overlying mapped units, so it is not well located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, inferred
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an anticline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground. The existence of the fold is inferred from structural and stratigraphic relationships observed elsewhere.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., ot anticline, approx. located
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an anticline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:24,000) or within about 48 meters on the ground. Evidence that the anticline is overturned was observed, although that observation may not have been made at this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., ot syncline, approx. located
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an syncline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:24,000) or within about 48 meters on the ground. Evidence that the syncline is overturned was observed, although that observation may not have been made at this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., ot syncline, certain
Enumerated_Domain_Value_Definition:: The surface trace of the axis of a syncline. The axis has been observed or is closely constrained, so it is well-located as described in Positional_Accuracy. Evidence that the syncline is overturned was observed, although that observation may not have been made at this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., ot syncline, inferred
Enumerated_Domain_Value_Definition:: The surface trace of the axis of an syncline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground. Evidence that the syncline is overturned was observed, although that observation may not have been made at this point.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., syncline, approx. located
Enumerated_Domain_Value_Definition:: The surface trace of the axis of a syncline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 2 mm at map scale (1:24,000) or within about 48 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., syncline, certain
Enumerated_Domain_Value_Definition:: The surface trace of the axis of a syncline. The axis has been observed or is closely constrained, so it is well-located as described in Positional_Accuracy.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., syncline, concealed
Enumerated_Domain_Value_Definition:: The surface trace of the axis of a syncline. The axis is obscured by overlying mapped units, so it is not well located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., syncline, inferred
Enumerated_Domain_Value_Definition:: The surface trace of the axis of a syncline. The axis has not been observed, so it is not well-located as described in Positional_Accuracy, but the location is constrained to be within about 5 mm at map scale (1:24,000) or within about 120 meters on the ground.

Overview_Description:

Entity_and_Attribute_Overview:: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California). Almost all the attributes in the various attribute tables of the coverages included in the report are set or calculated by Arc/Info. The exceptions are "coveragename"-ID, LTYPE, PTYPE, PTTYPE, STRIKE, and DIP. "coveragename"-ID is required by internal policy to be sequential. This ensures the highest compatibility of our databases with other GISs. Therefore "coveragename"-ID is calculated equal to "coveragename"#, which is a unique, sequential integer assigned by Arc/Info to each data record. LTYPE, PTYPE, and PTTYPE are author added items to the coverage AAT or PAT that are used to describe the type of line (LTYPE), area (PTYPE), or point (PTTYPE) being recorded. All coverages with AAT and PAT present include these items in the data structure. Each has WIDTH 35, OUTPUT 35, TYPE C. STRIKE and DIP are author added items to the coverage PAT that record information about the orientation of planar geologic structures. Both have WIDTH 3, OUTPUT 3, TYPE I. These items are recorded in the tables SRM-STR.PAT of the structure coverage. The base map layers are included for visual reference only and contain no data attributes or attribute tables.
Entity_and_Attribute_Detail_Citation: <http://geopubs.wr.usgs.gov/open-file/of01-290/srm_expl.pdf>

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Database Coordinator
Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address
Address: 345 Middlefield Rd., M/S 975
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA

Resource_Description: USGS Open-File Report 01-290

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 the delivery, installation, operation, or support by USGS.
This digital, geologic map database of the San Rafael Mtn. 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).
This report is preliminary and has not been reviewed for conformity with the U.S. Geological Survey editorial standards. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Arc/Info export
Format_Version_Number: 7.2.1
Format_Information_Content:: Geologic units, structural features, and ancillary coverages, as well as a geo-referenced black-and-white TIF image of the topographic base map
File_Decompression_Technique: tar and gzip
Transfer_Size: 11.3 megabytes

Digital_Transfer_Option: