Digital Geologic Map of Oregon

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Frequently anticipated questions:


What does this data set describe?

Title: Digital Geologic Map of Oregon
Abstract:
Oregon lithology. Faults are in a separate coverage. The legend for southeastern Oregon is in the coverage orlegend.
  1. How might this data set be cited?
    Hintze, L.F., 1994, Digital Geologic Map of Oregon.

    Online Links:

    Other_Citation_Details: ARC/INFO export .e00 files.
  2. What geographic area does the data set cover?
    North_Bounding_Coordinate: 46.275
    South_Bounding_Coordinate: 42.0
    East_Bounding_Coordinate: -116.459
    West_Bounding_Coordinate: -124.564
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 1993
    Currentness_Reference:
    Final update
  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.
    2. What coordinate system is used to represent geographic features?
      The map projection used is Lambert Conformal Conic.
      Projection parameters:
      Standard_Parallel: 33.0
      Standard_Parallel: 45.0
      Longitude_of_Central_Meridian: -121.0
      Latitude_of_Projection_Origin: 0.0
      False_Easting: 500000
      False_Northing: 500000
      Planar coordinates are encoded using coordinate pair
      Planar coordinates are specified in meters
      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
  7. How does the data set describe geographic features?
    ORGEOL.AAT
    Linear geologic features (Source: USGS-Geologic map of Oregon)
    ORLTYPE
    Line type (Source: USGS-Geologic map of Oregon)
    ValueDefinition
    0Nonprinting polygon boundaries for ARC/INFO limitations
    1contact
    Entity_and_Attribute_Overview:
    ORGEOL.PAT (polygon and point coverage):
    ORLEGEND.PAT (Same attributes as ORGEOL.PAT except attribute FMTNSYM
    in which a few of the letters in PTYPE have been changed):
    
    PTYPE  AGE-EPOCH                   LITHOLOGY
    
    Qyb    Holocene                    YOUNGEST BASALT AND BASALTIC
                                       ANDESITE
    Qal    Holocene                    ALLUVIAL DEPOSITS
    Qpl    Holocene                    PLAYA DEPOSITS
    Qd     Holocene                    DUNE SAND
    Qt     Holocene, Pleistocene       TERRACE, PEDIMENT, AND LAG
                                       GRAVELS
    Qls    Holocene, Pleistocene       LANDSLIDE AND DEBRIS-FLOW
                                       DEPOSITS
    Qf     Holocene?, Pleistocene      FANGLOMERATE
    Qlb    Holocene, Pleistocene       LATE BASALT
    Qg     Pleistocene                 GLACIAL DEPOSITS
    Qs     Pleistocene                 LACUSTRIAN AND FLUVIAL
                                       SEDIMENTARY ROCKS
    Qb     Holocene, Pleistocene       BASALT AND BASALTIC ANDESITE
    QTp    Holocene, Pleistocene,
           Pliocene, Miocene?          PYROCLASTIC ROCKS OF BASALTIC
                                       AND ANDESITIC CINDER CONES:
                                       BASALTIC AND ANDESITIC EJECTA
    QTps   Holocene, Pleistocene,
           Pliocene, Miocene?          PYROCLASTIC ROCKS OF BASALTIC
                                       AND ANDESITIC CINDER CONES:
                                       SUBAQUEOUS BASALTIC AND
                                       ANDESITIC EJECTA
    QTvs   Pleistocene, Pliocene       SILICIC VENT DEPOSITS
    QTvm   Pleistocene, Pliocene,
           Miocene?                    MAFIC VENT DEPOSITS
    QTg    Pleistocene, Pliocene       TERRACE AND PEDIMENT GRAVELS
    QTs    Pleistocene, Pliocene       SEDIMENTARY ROCKS
    QTb    Pleistocene, Pliocene       BASALT
    Tvs    Pliocene, Miocene,
           Oligocene, Eocene?          SILICIC VENT ROCKS
    Tob    Pliocene, Miocene           OLIVINE BASALT
    Ts     Pliocene, Miocene           TUFFACEOUS SEDIMENTARY ROCKS
                                       AND TUFF
    Tat    lower Pliocene,
           upper Miocene               SILICIC ASH-FLOW TUFF
    Tstv   Pliocene?, Miocene          STRAWBERRY VOLCANICS
    Trh    Pliocene?, Miocene          RHYOLITIE AND DACITE
    Tvm    Pliocene?, Miocene          MAFIC AND INTERMEDIATE VENT
                                       ROCKS
    Tvm    Pliocene?, Miocene          PYROCLASTIC ROCKS OF BASALTIC
                                       CINDER CONES
    Tp     lower Pliocene?, Miocene?   BASALTIC AND ANDESITIC EJECTA
    Tps    lower Pliocene?, Miocene?   SUBAQUEOUS PYROCLASTIC ROCKS
                                       OF BASALTIC CINDER CONES
    Tb     upper and middle Miocene    BASALT
    Tlf    Miocene                     LACUSTRIAN AND FLUVIAL
                                       DEPOSITS
    Tc     Miocene                     COLUMBIA RIVER BASALT GROUP
                                       AND RELATED FLOWS
    Twt    upper? and middle Miocene   WELDED TUFFS AND TUFFAECOUS
                                       SEDIMENTARY ROCKS
    Tts    Miocene                     TUFFACEOUS SEDIMENTARY ROKCS,
                                       TUFFS, PUMICITES, AND SILCIC
                                       FLOWS
    Tba    Miocene                     BASALT AND ANDESITE
    Tbas                               ANDESITIC AND BASALTIC ROCKS
                                       ON STEENS MOUNTAIN
    Tr     Miocene, upper Eocene?      RHYOLITE AND DACITE DOMES AND
                                       FLOWS AND SMALL HYPABYSSAL
                                       INTRUSIVE BODIES
    Tsf    lower Miocene, Oligocene,
           upper Eocene?               RHYOLITIC TUFF, TUFFACEOUS
                                       SEDIMENTARY ROCKS, AND LAVA
                                       FLOWS
    Tas    Miocene?, Oligocene         ANDESITE AND DACITE AND
                                       SEIDMENTARY ROCKS
    Tca    lower Oligocene?,
           Eocene, Paleocene?          CLASTIC ROCKS AND ANDESITE
                                       FLOWS
    Js     Jurassic                    SEDIMENTARY ROCKS
    JTRsv  Jurassic and upper Triassic SEDIMENTARY AND VOLCANIC ROCKS
    JTRs   Jurassic and upper Triassic SEDIMENTARY ROCKS (JURASSIC
                                       AND UPPER TRIASSIC)
    TRs    upper and middle Jurassic
           and upper Triassic          MARINE SEDIMENTARY ROCKS
    TRv    uppper Triassic             VOLCANIC AND METAVOLCANIC
                                       ROCKS
    TRv    Triassic and Paleozoic      ULTRAMAFIC AND MAFIC INTRUSIVE
                                       ROCKS AND SERPENTINIZED
                                       EQUIVALENTS
    TRPZu  Triassic and Paleozoic      ULTRAMAFIC ROCKS
    TRPZg  Triassic and Paleozoic      GABBROIC ROCKS
    mr     Mesozoic and Paleozoic      MIXED ROCKS
    TRPZs  Triassic and Paleozoic      SEDIMENTARY ROCKS, PARTLY
                                       METAMORPHOSED
    TRPZsn Triassic and Paleozoic      MARBLE
    TRPv   Triassic and Permian        VOLCANIC ROCKS
    PZs    Paleozoic                   SEDIMENTARY ROCKS, PARTLY
                                       METAMORPHOSED
    PZsv   Paleozoic                   SEDIMENTARY AND VOLCANIC
                                       ROCKS, PARTLY METAMORPHOSED
    Tim    Pliocene, Miocene           MAFIC AND INTERMEDIATE
                                       INTRUSIVE ROCKS
    Tvi    Eocene?                     MAFIC VENT AND INTRUSIVE ROCKS
    KJi    Cretaceous and Jurassic     INTRUSIVE ROCKS
    JTRgd  Jurassic and Triassic       GRANITE AND DIORITE
    Kc     upper and lower Cretaceous  CLASTIC SEDIMENTARY ROCKS
    Qma    Holocene                    MAZAMA ASH DEPOSITS
    Qmp    Holocene                    MAZAMA PUMICE DEPOSITS
    Qba    Holocene?, Pleistocene      BASALTIC ANDESITE AND BASALT
    QTmv   Pleistocene, Pliocene,
           Miocene                     MAFIC VENT COMPLEXES
    QTba   Pleistocene, Pliocene       BASALT AND BASALTIC ANDESITE
    Trb    Pliocene, upper Miocene     RIDGE-CAPPING BASALT AND
                                       BASALTIC ANDESITE
    Tmv    Miocene                     MAFIC VENT COMPLEXES
    Tu     Miocene, Oligocene          UNDIFFERENTIATED TUFFACEOUS
                                       SEDIMENTARY ROCKS, TUFFS, AND
                                       BASALT
    Tus    Miocene, Oligocene          SEDIMENTARY AND VOLCANICLASTIC
                                       ROCKS
    Tub    Miocene, Oligocene          BASALTIC LAVA FLOWS
    Tib    Pliocene, Miocene,
           Oligocene                   BASALT AND ANDESITE INTRUSIONS
    
    Entity_and_Attribute_Detail_Citation: More information can be found in file ORGEOL.README.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Hintze, L.F.
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Raines, Gary Lee
    USGS-GEO-WRG-MRS
    MacKay School Of Mines
    Reno, NV
    US

    775-784-5596 (voice)
    graines@usgs.gov

Why was the data set created?

To provide to the public a digital geologic map database of Oregon.

How was the data set created?

  1. From what previous works were the data drawn?
    Walker and MacLeod (1991) (source 1 of 1)
    Walker, G.W., and MacLeod, N.S., 1991, Geologic map of Oregon.

    Type_of_Source_Media: mylar
    Source_Scale_Denominator: 500000
    Source_Contribution:
    Source map for creating digital geologic map database of Oregon.
  2. How were the data generated, processed, and modified?
    Date: 1992 (process 1 of 2)
    The map was originally compiled on 1:400,000-scale quarters of the early 1980's version of the Oregon base map for publication at 1:500,000. These data were digitized by USGS NMD Thematic Map Unit and then reprojected to the new (late 1980's) Oregon 1:500,000-scale state base map. This digital work was done primarily in the Scitex sytem. Conversion of scitex products for publication to ARC/INFO format was done to create this coverage. The major task in this conversion was translation of the Scitex color parameters to the map unit names used in ARC/INFO.
    Date: 03-Dec-2002 (process 2 of 2)
    Creation of original metadata record Person who carried out this activity:
    Peter N Schweitzer
    U.S. Geological Survey, ER
    Geologist
    Mail Stop 954
    12201 Sunrise Valley Drive
    Reston, VA
    USA

    703-648-6533 (voice)
    703-648-6252 (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?
    The map was originally compiled on 1:400,000-scale quarters of the early 1980's version of the Oregon base map for publication at 1:500,000. These data were digitized by USGS NMD Thematic Map Unit and then reprojected to the new (late 1980's) Oregon 1:500,000-scale state base map.

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)
    USGS Information Services
    Box 25286, Denver Federal Center
    Denver, Colorado
    USA

    1-888-ASK-USGS (voice)
    1-303-202-4695 (FAX)
    infoservices@usgs.gov
  2. What's the catalog number I need to order this data set? US Geological Survey Geologic map of Oregon
  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.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 05-Feb-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 for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://geo-nsdi.er.usgs.gov/metadata/provisional/geol-maps/oregon.faq.html>
Generated by mp version 2.9.47 on Wed Mar 14 10:38:48 2018