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 2.9.48 on Tue Jul 03 20:07:30 2018