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Digital Geologic Map of the Butler Peak 7.5' Quadrangle, San Bernardino 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: Fred K. Miller

Originator: Jonathan C. Matti

Originator: Howard J. Brown

Originator: Pamela M. Cossette (digital compiler)

Publication_Date: 2000301

Title:

Digital Geologic Map of the Butler Peak 7.5' Quadrangle, San Bernardino 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 00-145

Publication_Information:

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

Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of00-145/>

Description:

Abstract:: This data set maps and describes the geology of the Butler Peak 7.5' quadrangle, San Bernardino County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage showing geologic contacts and units,(2) a scanned topographic base at a scale of 1:24,000, and (3) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) A PostScript graphic plot-file containing the geologic map on a 1:24,000 topographic base accompanied by a Description of Map Units (DMU), a Correlation of Map Units (CMU), and a key to point and line symbols; (2) PDF files of the DMU and CMU, and of this Readme, and (3) this metadata file.
The geologic map data base contains original U.S. Geological Survey data generated by detailed field observation and by interpretation of aerial photographs. The map was created by transferring lines from the aerial photographs to a 1:24,000 mylar orthophoto-quadrangle and then to a base-stable topographic map. This map was then scribed, and a .007 mil, right-reading, black line clear film made by contact photographic processes.The black line was scanned and auto-vectorized by Optronics Specialty Company, Northridge, CA. The non-attributed scan was imported into ARC/INFO, where the database was built. Within the database, geologic contacts are represented as lines (arcs), geologic units as polygons, and site-specific data as points. Polygon, arc, and point attribute tables (.pat, .aat, and .pat, respectively) uniquely identify each geologic datum and link it to other tables (.rel) that provide more detailed geologic information.
Purpose:: The data set for the Butler Peak quadrangle has been prepared by the Southern California Areal Mapping Project (SCAMP), a cooperative project sponsored jointly by the U.S. Geological Survey and the California Division of Mines and Geology, as part of an ongoing effort to utilize a Geographical Information System (GIS) format to create a regional digital geologic database for southern California. This regional database is being developed as a contribution to the National Geologic Map Data Base of the National Cooperative Geologic Mapping Program of the USGS. Development of the dataset for the Butler Peak quadrangle has also been supported by the U.S. Forest Service, San Bernardino National Forest.
The digital geologic map database for the Butler Peak quadrangle has been created as a general-purpose data set that is applicable to other land-related investigations in the earth and biological sciences. For example, the U.S. Forest Service, San Bernardino National Forest, is using the database as part of a study of an endangered plant species that shows preference for particular rock type environments. The Butler Peak database is not suitable for site-specific geologic evaluations at scales greater than 1:24,000 (1 in = 2,000 ft).

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2000

Currentness_Reference: New data

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -117.1250927
East_Bounding_Coordinate: -116.9999073
North_Bounding_Coordinate: 34.37500202
South_Bounding_Coordinate: 34.24998409

Keywords:

Theme:

Theme_Keyword_Thesaurus: none
Theme_Keyword: gelogic map
Theme_Keyword: geology
Theme_Keyword: bedrock geology
Theme_Keyword: surficial geology

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: California
Place_Keyword: San Bernardino County
Place_Keyword: Butler Peak 7.5' quadrangle

Place:

Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0
Place_Keyword: 06071 = San Bernardino

Access_Constraints: None

Use_Constraints:

The Butler Peak 7.5' geologic-map database should be used to evaluate and understand the geologic character of the Butler Peak quadrangle as a whole. The data should not be used for purposes of site-specific land-use planning or site-specific geologic evaluations. The database is sufficiently detailed to identify and characterize many actual and potential geologic hazards represented by faults and landslides. However, it is not sufficiently detailed for site-specific determinations or evaluations of those features. Faults shown do not take the place of fault-rupture hazard zones designated by the California State Geologist (see Hart, 1988).
Use of the Butler Peak geologic-map database should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of any derivative maps, the detail and accuracy issues inherent in map scale limitations are also present in the digital data. The fact that this database was edited at a scale of 1:24,000 means that higher-resolution data generally are not present in the dataset. Plotting at scales larger than 1:24,000 will not yield greater, real detail, although it may reveal fine-scale irregularities beyond the intended resolution of the database. Similarly, although higher-resolution data is incorporated at a few places, the resolution of the combined output will be limited by the lower-resolution data.
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Hart, E. W., 1988, Fault-rupture zones in California; Alquist-Priolo Special Studies Zones Act of 1972 with index to special studies zones maps: California Division of Mines and Geology Special Publication 42

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Fred K. Miller
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: United States of America

Contact_Voice_Telephone: (509) 368-3121

Contact_Facsimile_Telephone: (509) 368-3199

Contact_Electronic_Mail_Address: fmiller@usgs.gov

Data_Set_Credit:

In our mapping in the Butler Peak quadrangle, we were guided in part by the findings of R.S. MacColl 1:36,000-scale mapping of the Rattlesnake Mountain pluton.
Technical review by David M. Miller led to significant improvements in aspects of the data base, the plot file, and in the discription of the geologic units of the Butler Peak quadrangle.
Geologic mapping and digital preparation of this report were sponsored jointly by (1) the National Cooperative Geologic Mapping Program of the U.S. Geological Survey and (2) the U.S. Forest Service (San Bernardino National Forest). In our digital preparation of the data set, carried out in the Geographic Information System laboratory of the Mineral Resources Survey Program of the U.S. Geological Survey in Spokane, Washington, we received valuable assistance from Paul C. Hyndman and from Rachel Hauser at the SCAMP Geographic Information System laboratory in Riverside, California.
Dibblee, T.W., Jr., 1964, Geologic map of the Lucerne Valley quadrangle, San Bernardino County, California: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-426, scale 1:62,500.
MacColl, R.S., 1964, Geochemical and structural studies in batholithic rocks of southern California: Part 1, Structural geology of Rattlesnake Mountain pluton: Geological Society of America Bulletin, v. 75, p. 805-822

Native_Data_Set_Environment:

SunOS, 5.6, sun4u UNIX ARC/INFO version 7.2.1

Cross_Reference:

Citation_Information:

Originator: Fred K. Miller

Originator: Jonathan C. Matti

Originator: Howard J. Brown

Originator: Robert E. Powell

Publication_Date: 1998

Title:

Geologic map of the Fawnskin 7.5' quadrangle, San Bernardino County, California, version 1.0

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: USGS OFR 98-579

Publication_Information:

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

Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of00-145/>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: Nation-wide geologic-map accuracy standards have not been developed and adopted by the U.S. Geological Survey and other earth-science entities. Until such standards are adopted, the SCAMP project has developed internal map-accuracy standards for 1:24,000-scale geologic maps produced by the project.
Geologic lines and points on 1:24,000 scale geologic maps are judged to meet SCAMP's internal map-accuracy standards if they are located to within +/-15 meters, relative to topographic or cultural features on the base map.
Lines and points that meet (or may not meet) the SCAMP internal map-accuracy standard are identified both in the digital database and on derivative geologic-map plots.
Within the database, line and point data that are judged to meet the SCAMP internal map-accuracy standard are denoted by the attribute code .MEE. (meets) in the appropriate data table; line and point data that may not meet the SCAMP internal map-accuracy standard are denoted by the attribute code .MNM. (may not meet).
On any derivative geologic-map plot, line data that are judged to meet the SCAMP internal map-accuracy standard are denoted by solid lines; line data that may not meet the SCAMP internal map-accuracy standard are denoted by dashed or dotted lines. There is no cartographic device for denoting the map-accuracy for geologic-point data (eg. symbols representing bedding, foliation, lineations, etc.).

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 database is considered to be substantially complete in its present form. In future revisions, all polygons will be encoded with polygon-specific geologic data that is currently included in the Description of Map Units in this version (version 1.0). Concentration of geologic observations is lowest in the southwestern part of the quadrangle, but is considered adequate because of the single bedrock unit found there. Granitic rock names follow IUGS (Streckeisen, 1976) nomenclature. Some polygons of the generalized unit Qs, might be assigned to more specific Quaternary units after detailed study.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The maximum transformation RMS error acceptable for 7.5' quadrangle transformation and data input is 0.003 (1.8 meters). Horizontal positional accuracy was checked by visual comparison of hard-copy plots with base-stable source data.
Transformation data (initial DXF scan data format to ARC/INFO coverage) for the Butler Peak quadrangle are as follows:

Scale (X,Y) = (609.489,609.966)  Skew (degrees) = (0.003)
Rotation (degrees) = (-0.025)  Translation = (-6246.250,-537.794)
RMS Error (input,output) = (0.001,0.850)

Affine  X = Ax + By + C
Scale (X,Y) = (609.489,609.966)  Skew (degrees) = (0.003)
Rotation (degrees) = (-0.025)  Translation = (-6246.250,-537.794)
RMS Error (input,output) = (0.001,0.850)

Affine  X = Ax + By + C
        Y = Dx + Ey + F
  A =          609.489   B =            0.300   C =        -6246.250
  D =           -0.266   E =          609.966   F =         -537.794

Lineage:

Process_Step:

Process_Description:: Field mapping and aerial photograph interpretation; iterative process (H.J. Brown).
Process_Date: 1978-1982

Process_Step:

Process_Description:: Field mapping, remapping, and aerial photograph interpretation; iterative process (J.C. Matti).
Process_Date: 1991-1996

Process_Step:

Process_Description:: Field mapping, remapping and aerial photograph interpretation; iterative process (F.K. Miller).
Process_Date: 1975-1976 and 1997-1998

Process_Step:

Process_Description:: Transfer of geologic linework and point data from aerial photographs to a scale-stable cartographic base for northeast part of quadrangle (J.C. Matti).
Process_Date: 1996

Process_Step:

Process_Description:: Transfer of geologic linework and point data from aerial photographs to a scale-stable transparent orthophotoquadrangle (F.K. Miller).
Process_Date: 1999

Process_Step:

Process_Description:: The geologic map information was scanned (initial raster scan in MS-DOS TIF format, 1200 dots per inch) from a clear-film, right-reading, 0.007 mil thickness, base-stable blackline positive (made by contact photograph from a scribeguide) of the author-prepared geologic map at 1:24,000 scale. The auto-vectorized, non-attributed scan was prepared by Optronics Specialty Company, Inc. and converted to an ARC/INFO coverage using standard ARC/INFO commands. Registration and transformation were subsequently completed in Spokane (P.M. Cossette).
Geologic lines, and polygons are represented in the geology coverage. Geologic points such as attitudes were digitized into a separate geologic points coverage using a Mayline Futur-Matic digitizing table (P.M. Cossette).
Lines, points, and polygons were edited and attributed using standard ARC/INFO commands. Digitizing and editing artifacts significant enough to display at a scale of 1:24,000 were corrected (P.M. Cossette).
The base map image was prepared by scanning a scale-stable clear-film of the U.S. Geological Survey, 1:24,000 Butler Peak 7.5'quadrangle (1971) topographic map. Scanning was done using an Anatech Eagle 4080 monochrome 800 dots per inch (dpi) scanner, at a resolution of 500 dpi. The raster scan was converted to a monochromatic image in ARC/INFO. No elements of the base layer are attributed. The base map is provided for reference only (R.M. Hauser and P.M. Cossette).
Process_Date: 1999

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/c/cossette2/butler/btlrpk_of/btlrpk_geo
Process_Date: 20000221

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: 954

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 2569

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 955

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Polyconic

Polyconic:

Longitude_of_Central_Meridian: -117.0625
Latitude_of_Projection_Origin: 34.2500
False_Easting: 0.00000
False_Northing: 0.00000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.0000001
Ordinate_Resolution: 0.0000001

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:

Version 1.0 of the Digital Geologic Map of the Butler Peak 7.5'quadrangle consists of three Arc/Info coverages:
1) btlrpk_geo - geology
Geologic units are delineated by geologic line entities and described by polygons which are attributed with the following set of attribute items in btlrpk_geo.pat. For display purposes, the geology coverage contains one annotation subclass: anno.geo contains unit labels.

BTLRPK_GEO.PAT:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  AREA                   8    18     F      5
    9  PERIMETER              8    18     F      5
   17  BTLRPK_GEO#            4     5     B      -
   21  BTLRPK_GEO-ID          4     5     B      -
   25  TAG                   25    25     C      -
   50  LABL                  35    35     C      -
   85  PLABL                 35    35     C      -
  120  SHD                    3     3     I      -
  123  SHDFIL                 3     3     I      -
  126  SHDPS                  3     3     I      -
  129  NAME                 200   200     C      -

TAG enables identification of polygons, within a unit, of which the geology is sufficiently distinct from that of the overall unit. The default designation is the unit label with the suffix A. Polygons representing unique properties other than the default can be identified with suffixes B, C...etc. All polygons in the Butler Peak quadrangle are designated by the suffix A.
LABL geologic map unit label, in plain text
PLABL coded geologic map unit label used to generate plot labels with relevant stratigraphic symbols. The geologic units with LABL Cbk, Cc, Cw, Cz (Cambrian); Mzu (Mesozoic); PPbs (Pensylvanian); Prcc, Prgsq etc. (Proterozoic); Trf, Trfl, Trlm (Triassic) appear as _bk, _c, _w, _z; }u; &bs; <cc, <gsq etc.; ^f, ^fl, ^lm respectively in the item PLABL. The replacement characters call their corresponding symbols from the Stratagem Font Group. Geologic map unit labels will plot on derivative map plots with appropriate stratigraphic symbols if PLABL is used as the source of unit labels. The Stratagem Font Group is accessed through geofont.txt. However, the Stratagem Font Group is unavailable for general release at this time.
SHD allows assignment of polygon colors from shadesets other than those used in this dataset
SHDFIL polygon fill pattern from shadeset geology2.shd (included in the data package)
SHDPS polygon color from shadeset scamp2.shd (included in the data package)
NAME geologic name of each unit
Geologic lines, which include features such as faults, and contacts are attributed with the following set of feature attribute items contained in btlrpk_geo.aat. (A complete description of each line type is available in the data table, lines.rel.)



BTLRPK_GEO.AAT:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  FNODE#                 4     5     B      -
    5  TNODE#                 4     5     B      -
    9  LPOLY#                 4     5     B      -
   13  RPOLY#                 4     5     B      -
   17  LENGTH                 8    18     F      5
   25  BTLRPK_GEO #           4     5     B      -
   29  BTLRPK_GEO -ID         4     5     B      -
   33  L-SYMB                 3     3     I      -
   36  L-TAG                 25    25     C      -

L-SYMB stores appropriate line symbol value from the lineset geoscamp2.lin (included in the data package)

L-TAG line attribute which consists of a character and numerical value, e.g. C17, allows the user to relate the line entity to its corresponding definition in lines.rel

2) btlrpk_pts - geologic point data
Geological point data includes information describing the types and the orientation of bedding, foliation, and lineations. One annotation subclass is included in the geologic points coverage: dip displays the respective dip and plunge values associated with individual point data.


BTLRPK_PTS.PAT:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  AREA                   8    18     F      5
    9  PERIMETER              8    18     F      5
   17  BTLRPK_PTS#            4     5     B      -
   21  BTLRPK_PTS-ID          4     5     B      -
   25  P-DIP                  3     3     I      -
   28  P-STRIKE               3     3     I      -
   31  P-SYMB                 3     3     I      -
   34  P-TAG                 25    25     C      -
   59  P-UNIQUE             200   200     C      -
  259  P-AGECON              50    50     C      -
  309  P-SOURCE             200   200     C      -
  509  P-AGE                100   100     C      -
  609  P-PLUNGE               3     3     I      -
  612  P-DIPDIR               3     3     I      -

P-DIP the dip of planar features
P-STRIKE the azimuth strike of planar features
P-SYMB stores the point-type value from the markerset geoscamp2.mrk (included in the data package)
P-TAG point attribute which consists of a character(s) and numerical value, e.g. FN42, allows the user to relate the point entity to its corresponding definition in the data table, points.rel
P-UNIQUE allows for the description of attributes uniquely associated with a particular point datum location
P-AGECON indicates the confidence with which a geologic age is assigned to a point feature
P-SOURCE allows identification of sources other than the U.S. Geological Survey authors of this map product from which data were compiled
P-AGE indicates the geologic age assigned to the feature, where determined
P-PLUNGE lineation plunge value
P-DIPDIR azimuthal direction of dip
To date, there is no other way to indicate to the user the cardinal direction of dip using the traditional convention (traditional geologic notation allows a quadrant designation following the dip value).
3) btlrpk_ldr - annotation leaders
Annotation leaders point to unit labels that are placed outside the perimeter of a particular geologic polygon. These cartographic line entities are attributed with only a single attribute, L-SYMB, and all have the same value, 1.


BTLRPK_LDR.AAT:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  FNODE#                 4     5     B      -
    5  TNODE#                 4     5     B      -
    9  LPOLY#                 4     5     B      -
   13  RPOLY#                 4     5     B      -
   17  LENGTH                 8    18     F      5
   25  BTLRPK_LDR#            4     5     B      -
   29  BTLRPK_LDR-ID          4     5     B      -
   33  L-SYMB                 3     3     I      -

Entity_and_Attribute_Detail_Citation:

A complete description of the polygon, line, and point data coding schemes is available in U.S. Geological Survey Open-File Reports 97-859, OFR 97-860, and OFR 97-861 (full source citations follow):
Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., Bunyapanasarn, T.P., Koukladas, Catherine, Hauser, R.M., and Cossette, P.M., 1997b, Geologic-point attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-859
Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., and Cossette, P.M., 1997c, Geologic-polygon attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-860
Matti, J.C., Powell, R.E., Miller, F.K., Kennedy, S.A., Ruppert, K.R., Morton, G.L., and Cossette, P.M., 1997a, Geologic-line attributes for digital geologic-map databases produced by the Southern California Areal Mapping Project (SCAMP), Version 1.0: U.S.Geological Survey Open-File Report 97-861

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey Information Services

Contact_Address:

Address_Type: mailing and physical address
Address: Open-File Reports, Box 25286
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA

Contact_Voice_Telephone: (303) 202-4200

Contact_Electronic_Mail_Address: (distributor email)

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 Butler Peak 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).

Metadata_Reference_Information:

Metadata_Date: 20000403

Metadata_Review_Date: 20000228

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary: