Geologic Map of the Hart Peak Quadrangle, California and Nevada: A Digital Database

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Frequently anticipated questions:

What does this data set describe?

Title:
Geologic Map of the Hart Peak Quadrangle, California and Nevada: A Digital Database
Abstract:
This digital map database represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text files (hpk_geo.txt, hpk_geo.pdf or hpk_geo.ps), 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.
  1. How might this data set be cited?
    Nielson, Jane E., Turner, Ryan D., and Bedford, David R., 1999, Geologic Map of the Hart Peak Quadrangle, California and Nevada: A Digital Database: U.S. Geological Survey Open-File Report 99-34.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -115.13
    East_Bounding_Coordinate: -115.00
    North_Bounding_Coordinate: 35.38
    South_Bounding_Coordinate: 35.25
  3. What does it look like?
    http://pubs.usgs.gov/of/1999/0034/pdf/hpk_map.pdf (PDF)
    PDF representation of map with explanatory text and cross-sections.
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 1999
    Currentness_Reference:
    Publication of this digital database.
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: map
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point
      • Complete Chain
      • GT-polygon composed of chains
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 11
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.9996
      Longitude_of_Central_Meridian: -117
      Latitude_of_Projection_Origin: 0.0
      False_Easting: 500000
      False_Northing: 0
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest unknown
      Ordinates (y-coordinates) are specified to the nearest unknown
      Planar coordinates are specified in meters
      The horizontal datum used is NAD27.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.
      The flattening of the ellipsoid used is 1/294.98.
  7. How does the data set describe geographic features?
    HPK_GEOL.PAT
    Geologic rock units in the Hart Peak 7.5 minute quadrangle (Source: OFR-99-34)
    PTYPE
    Polygon Type (Source: OFR-99-34)
    ValueDefinition
    QyaYounger alluvium (Holocene)
    Qia2bIntermediate alluvium (Holocene and Pleistocene) — Unit 2 (Holocene and Pleistocene) — Younger deposits (Holocene)
    Qia1Intermediate alluvium (Holocene and Pleistocene) — Unit 1 (Holocene? and Pleistocene)
    QoaOlder alluvium (Pleistocene)
    QTgGravel deposits (Pleistocene and Pliocene?)
    TgGravel deposits (Miocene)
    TapPyroxene andesite porphyry (Miocene)
    TcpTuff of Castle Peaks (Miocene)
    TbrVolcanic breccia (Miocene)
    TgGravel deposits (Miocene)
    TjTuff of Juan (Miocene)
    TbBasalt flows (Miocene)
    TbtsBasalt flows, rhyolite tuff, and sedimentary rocks (Miocene)
    TrRhyolite tuff, flows, and intrusive rocks (Miocene)
    TtsTuff, volcanic breccia, and sedimentary rocks (Miocene)
    TrfRhyolite flows (Miocene)
    TvlLahar of volcanic origin (Miocene)
    TvssVolcaniclastic sandstone and conglomerate (Miocene)
    TjwTuff of Jacks Well (Miocene)
    TlssLacustrine and fluvial sedimentary rocks (Miocene)
    TcmVolcanic flows and breccia of the Castle Mountains (Miocene)
    TpsPeach Springs Tuff of Young and Brennan (1974) (Miocene)
    PzlLimestone (Paleozoic)
    TgGravel deposits (Miocene)
    TbBasalt flows (Miocene)
    TbtsBasalt flows, rhyolite tuff, and sedimentary rocks (Miocene)
    TprTuff of the Piute Range (Miocene)
    TaAndesitic flows, breccia, and sedimentary rocks (Miocene)
    TpsPeach Springs Tuff of Young and Brennan (1974) (Miocene)
    TibBasalt sills and dikes (Miocene)
    TiaAndesitic intrusive rocks (Miocene)
    TirRhyolite domes and dikes (Miocene)
    TilLatite dike (Miocene)
    XlgLeucocratic granite and granitic gneiss (Early Proterozoic)
    XmgMigmatitic gneiss (Early Proterozoic)
    HPK_GEOL.AAT
    Linear features on geologic map (Source: OFR-99-34)
    LTYPE
    Line type (Source: OFR-99-34)
    ValueDefinition
    contact, certainObserved contact
    dike, TibBasalt dike (Miocene)
    dike, TirRhyolite dike (iocene)
    fault, approx. locatedFault whose position is not certain
    fault, certainObserved fault
    fault, concealedFault whose position is concealed and inferred.
    fault, inferred, queriedFault whose position is inferred and questionable
    map boundary, certainMap boundary of the Hart Peak 7.5 minute quadrangle
    normal fault, certainObserved normal fault
    normal fault, inferred, queriedA normal fault whose position is questionable and inferred.
    HPK_GEOL.PAT
    Geologic map unit at specific points (Source: OFR-99-34)
    PTYPE
    Point Type (Source: OFR-99-34)
    ValueDefinition
    QyaYounger alluvium (Holocene)
    Qia2bIntermediate alluvium (Holocene and Pleistocene) — Unit 2 (Holocene and Pleistocene) — Younger deposits (Holocene)
    Qia1Intermediate alluvium (Holocene and Pleistocene) — Unit 1 (Holocene? and Pleistocene)
    QoaOlder alluvium (Pleistocene)
    QTgGravel deposits (Pleistocene and Pliocene?)
    TgGravel deposits (Miocene)
    TapPyroxene andesite porphyry (Miocene)
    TcpTuff of Castle Peaks (Miocene)
    TbrVolcanic breccia (Miocene)
    TgGravel deposits (Miocene)
    TjTuff of Juan (Miocene)
    TbBasalt flows (Miocene)
    TbtsBasalt flows, rhyolite tuff, and sedimentary rocks (Miocene)
    TrRhyolite tuff, flows, and intrusive rocks (Miocene)
    TtsTuff, volcanic breccia, and sedimentary rocks (Miocene)
    TrfRhyolite flows (Miocene)
    TvlLahar of volcanic origin (Miocene)
    TvssVolcaniclastic sandstone and conglomerate (Miocene)
    TjwTuff of Jacks Well (Miocene)
    TlssLacustrine and fluvial sedimentary rocks (Miocene)
    TcmVolcanic flows and breccia of the Castle Mountains (Miocene)
    TpsPeach Springs Tuff of Young and Brennan (1974) (Miocene)
    PzlLimestone (Paleozoic)
    TgGravel deposits (Miocene)
    TbBasalt flows (Miocene)
    TbtsBasalt flows, rhyolite tuff, and sedimentary rocks (Miocene)
    TprTuff of the Piute Range (Miocene)
    TaAndesitic flows, breccia, and sedimentary rocks (Miocene)
    TpsPeach Springs Tuff of Young and Brennan (1974) (Miocene)
    TibBasalt sills and dikes (Miocene)
    TiaAndesitic intrusive rocks (Miocene)
    TirRhyolite domes and dikes (Miocene)
    TilLatite dike (Miocene)
    XlgLeucocratic granite and granitic gneiss (Early Proterozoic)
    XmgMigmatitic gneiss (Early Proterozoic)
    HPK_SHR.PAT
    Polygonal layer depicting outlines of shear zones in the Hart Peak 7.5 minute quadrangle (Source: OFR-99-34)
    PTYPE
    Polygon type (Source: OFR_99-34)
    ValueDefinition
    shear zoneareal extent of shear zone
    HPK_SHR.AAT
    Outlines of shear zones in the Hart Peak 7.5 minute quadrangle (Source: OFR-99-34)
    LTYPE
    Line type (Source: OFR-99-34)
    ValueDefinition
    contact, certainObserved contact of a shear zone.
    HPK_SHR.PAT
    Specific points showing a shear zone. (Source: OFR-99-34)
    PTYPE
    Point Type (Source: OFR-99-34)
    ValueDefinition
    shear zoneShear zone location
    HPK_SMPL.PAT
    Dated Sample localities in the Hart Peak 7.5 minute quadrangle (Source: OFR-99-34)
    PTTYPE
    Point type (Source: OFR-99-34)
    ValueDefinition
    samplesample location
    SAMPNO
    Sample number (Source: OFR-99-34)
    Range of values
    Minimum:2
    Maximum:15
    HPK_STR.PAT
    Strike and dip information in the Hart Peak 7.5 minute quadrangle (Source: OFR-99-34)
    PTTYPE
    Point Type (Source: OFR-99-34)
    ValueDefinition
    _l_lineation_i_Orientation of lineation
    beddingbedding orientation
    flat beddinghorizontal bedding
    folationfoliation orientation
    jointJoint orientation
    vert foliation and beddingOrientation of vertical foliation and bedding
    DIP
    Dip of feature (Source: OFR-99-34)
    ValueDefinition
    -99unknown value
    Range of values
    Minimum:1
    Maximum:84
    Units:degrees
    Resolution:1
    STRIKE
    Strike of feature (Source: OFR-99-34)
    Range of values
    Minimum:0
    Maximum:359
    Units:degrees
    Resolution:1
    Entity_and_Attribute_Overview:
    ARC/INFO export files:
    hpk_geol.e00 - Faults, depositional contacts, and rock units in the Hart Peak 7.5 minute quadrangle
    hpk_str.e00 - Strike and dip information in the Hart Peak 7.5 minute quadrangle
    hpk_smpl.e00 - Dated Sample localities in the Hart Peak 7.5 minute quadrangle
    hpk_shr.e00 - Polygonal layer depicting outlines of shear zones in the Hart Peak 7.5 minute quadrangle
    Entity_and_Attribute_Detail_Citation:
    More information can be found in the pamphlet that can be downloaded with the digital database.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Jane E. Nielson
    • Ryan D. Turner
    • David R. Bedford
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Jane E. Nielson
    US Geological Survey
    US Geological Survey, 345 Middlefield Rd. MS 975
    Menlo Park, CA
    USA

Why was the data set created?

This Open-File report is a digital geologic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. The report does include, however, PostScript and PDF plot files containing images of a geologic map sheet, as well as the accompanying text describing the geology of the area.

How was the data set created?

  1. From what previous works were the data drawn?
    Hewell, 1956 (source 1 of 7)
    Hewett, D.F., 1956, Geology and mineral resources of the Ivanpah quadrangle, California and Nevada: U.S. Geological Survey Professional Paper 275.

    Other_Citation_Details: 172 pages
    Type_of_Source_Media: paper
    Source_Contribution:
    Earliest maps and descriptions of the Castle Mountains and Castle Peaks
    Medall, 1964 (source 2 of 7)
    Medall, S.E., 1964, Geology of the Castle Mountains, California: Los Angeles, University of Southern California M.S. thesis.

    Other_Citation_Details: 107 pages
    Type_of_Source_Media: paper
    Source_Contribution:
    earliest maps and descriptions of the Castle Mountains and Castle Peaks
    Balkwill, 1964 (source 3 of 7)
    Balkwill, H.R., 1964, Geology of the central New York Mountains, California: Los Angeles, University of Southern California M.S. Thesis.

    Other_Citation_Details: 93 pages
    Type_of_Source_Media: paper
    Source_Contribution:
    earliest maps and descriptions of the Castle Mountains and Castle Peaks
    Nielson et al., 1987 (source 4 of 7)
    Nielson, J.E., Frisken, J.G., Jachens, R.C., and McDonnell, J.R., Jr., 1987, Mineral resources of the Fort Piute Wilderness Study Area, San Bernardino County, California: U.S. Geological Survey Bulletin 1713-C.

    Other_Citation_Details: 12 pages
    Type_of_Source_Media: paper
    Source_Contribution:
    New geologic mapping in the Castle Mountains and Piute Range produced preliminary stratigraphic summaries.
    Nielson et al., 1993 (source 5 of 7)
    Nielson, J.E., Turner, R.D., and Glazner, A.F., 1993, Tertiary stratigraphy and structure of the Castle Mountains and Castle Peaks, Calif. and Nev., in Sherrod, D.R., and Nielson, J.E., eds., Tertiary stratigraphy of highly extended terranes, California, Arizona, and Nevada: U.S. Geological Survey Bulletin 2053.

    Other_Citation_Details: p. 45-49
    Type_of_Source_Media: paper
    Source_Contribution:
    New geologic mapping in the Castle Mountains and Piute Range produced preliminary stratigraphic summaries.
    Nielson and Nakata, 1993 (source 6 of 7)
    Nielson, J.E., and Nakata, J.K., 1993, Tertiary stratigraphy and structure of the Piute Range, Calif. and Nev., in Sherrod, D.R., and Nielson, J.E., eds., Tertiary stratigraphy of highly extended terranes, California, Arizona, and Nevada: U.S. Geological Survey Bulletin 2053.

    Other_Citation_Details: p. 51-53
    Type_of_Source_Media: paper
    Source_Contribution:
    New geologic mapping in the Castle Mountains and Piute Range produced preliminary stratigraphic summaries.
    Turner, 1985 (source 7 of 7)
    Turner, R.D., 1985, Miocene folding and faulting of an evolving volcanic center in the Castle Mountains, southeastern California and southern Nevada: Chapel Hill, University of North Carolina M.S. Thesis.

    Other_Citation_Details: 56 pages
    Type_of_Source_Media: paper
    Source_Contribution: Defined the Miocene section of the northern Castle Mountains
  2. How were the data generated, processed, and modified?
    (process 1 of 2)
    The geologic map information was digitized from stable originals of the geologic maps at 1:24,000 scale. The author manuscripts (pencil on mylar) were scanned using an 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, unit boundaries were tagged as appropriate, and scanning artifacts were removed.
    Date: 24-Jul-2000 (process 2 of 2)
    Creation of original metadata record Person who carried out this activity:
    Jennifer Lenz
    US Geological Survey
    12201 Surise Valley Drive, Mail Stop 918
    Reston, VA
    USA

    703-648-6974 (voice)
    703-648-6560 (FAX)
    pschweitzer@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    complete
  5. How consistent are the relationships among the observations, including topology?
    This map was compilied from a variety of sources.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: none
Use_Constraints: none
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey Information Services
    Box 25286, Denver Federal Center
    Denver, CO
    USA

    1-888-ASK-USGS (voice)
    1-303-202-4695 (FAX)
    infoservice@usgs.gov
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    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.
    This database, identified as "Geologic Map of the Hart Peak Quadrangle, California and Nevada: A Digital Database" has been approved for release and publication by the Director of the USGS. 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 condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: ARC/INFO export files: 
      hpk_geol.e00  Faults, depositional contacts, and rock units
hpk_str.e00   Strike and dip information
hpk_smpl.e00  Dated Sample localities
hpk_shr.e00   Polygonal layer depicting outlines of shear zones
      in format ARCE (version 7.2.1) Size: 0.3906
      Network links: http://pubs.usgs.gov/of/1999/0034/of99-34_3a.tar.gz
    • Cost to order the data: none

Who wrote the metadata?

Dates:
Last modified: 10-Jun-2016
Metadata author:
Peter N Schweitzer
USGS Midwest Area
Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/
Mail Stop 954
12201 Sunrise Valley Dr
Reston, VA
USA

703-648-6533 (voice)
703-648-6252 (FAX)
pschweitzer@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/99-34/metadata.faq.html>
Generated by mp version 2.9.48 on Tue Jul 03 20:07:19 2018