GEO_LPRV24



I. Identification Information:

Abstract: The data represents a 1:24,000 polygonal delineation of the surficial geology for the lower Portneuf River valley in southeast Idaho. The data was produced by the Idaho Geological Survey in Moscow, Idaho.
Theme Keyword: Geology
Place Keyword: Idaho
Bounding Coordinates: -112.629, 42.624; -112.250, 43.001; North American Datum 1983
Purpose: Identification of surficial geology within the lower Portneuf River valley
Native data set environment: Unknown
Cross reference: Regional Geographic Initiative
Time period of content:
      Calendar Date: Unknown
      Currentness reference: Unknown
Progress: Complete pending review
Maintenance and update frequency: As requested

II. Projection Information:

Map projection name: Transverse Mercator
Coordinate System: State Plane Coordinate System Idaho East
Horizontal datum name: North American Datum 1983
Ellipsoid name: Geodetic Reference System 1980
Altitude datum name: National Geodetic Vertical Datum of 1929
Planar distance units: Feet
Altitude distance units: Feet
UTM Zone number: 12
SPCS Zone identifier: 1101
Longitude of central meridian: -112 10 00
Latitude of projection origin: 41 40 00
False easting: 200,000 meters
False northing: 0
Coordinate precision: Single

III. Spatial Data Organization:

Indirect spatial reference: Lower Portneuf River valley
Direct spatial reference: Vector
SDTS Point and vector object type: GT-Polygon (polygon)

IV. Contact Information:

Contact organization (primary): GIS Training and Research Center, Idaho State University
Contact address:
      Address: Campus box 8104
      City: Pocatello
      State: Idaho
      Postal Code: 83209-8104
Contact voice telephone: (208) 236-3606
Contact fax number: (208) 236-5802
Hours of service: 8:00am to 5:00pm MST Monday through Friday

V. Data dictionary:

Entity and attribute overview: Polygon attribute table of geologic units and descriptions for the Lower Portneuf River Valley
Entity and attribute detail citation:
Entity (table) elements:       Entity type label: geo_lprv24.pat
      Entity type definition: Polygon attribute table for surface geology. Note: Arc software generated files are not described.
Attribute elements:
    Attribute (field) no.: 1
      Attribute label: Geo_units
      Attribute definition: Geologic unit
      Attribute definition source: Unknown
      Attribute domain: Cb, Cbb, Cbo, Ce, Cg, Cga, Cgb, Cgc, Cls, Cn, Csw, CZc, Db, Dh, m, Mdl, Mdu, Mgl, Ml, Mlf, Mmc, Null, OCsu, Of, Og, Os, Pzr, Qal, Qalo, Qam, Qap, Qat Qbg, Qc, Qcg, QcgQl, Qfg, Qfgo, QfgoQl, Qfgp, QfgpQl, Qfl, Qfm, Qfp, Ql, Qls, Qm, Qmg, Qp, Qs, Qt, QTb, QTgv, Qtn, QTp, QTr, Sl, Tb, Td, TdQl, Tr Ts, Tsc, Tsf, Tsg, TsgQl, Tsl, Tsla, Tslb, Tsld, Tslf, Tslh, Tslr, Tslt, Tslx, TslxQl, Tsma, TsmaQL, TsQl, Tst, Tsu, Tsub, Tsuc, Tsug, Tsup Tsup1, Tsup2, Tsur, Tsur1, Tsur2, Tsur3, Tsur4, Tsuv, Tw, water, Zb, Zc, Zcd, Zcl, Zcu, Zi, Zm, Zpa, Zpb, Zpc, Zpd, Zps, Zpsd, Zpsl1, Zpsl2 Zpsl3, Zpsm, Zpsq, Zpsu, Zpsud, Zpsus, Zpu, Zpua, Zpub.
      Attribute format type: Character
      Attribute format length: 10
      Attribute measurement resolution: Not applicable
      Attribute units of measure: Not applicable
      Attribute value accuracy: Unknown
      Attribute value accuracy explanation: Unknown
      Attribute measurement frequency: Unknown

    Attribute (field) no.: 2
      Attribute label: Geo_desc
      Attribute definition: Name of the Surface Geology
      Attribute definition source: Unknown
      Attribute domain: Sand commonly reworked into wind dunes (Holocene to Late Pleistocene); Aberdeen Terrace Deposits (Upper Pleistocene); Alluvial fan deposits of the lower Portneuf R. Valley (Holocene); Alluvial fan gravel of Mink Cr. Valley(Holocene); Alluvial fan gravel of Pinedale age (Late Pleistocene); Alluvial fan gravels undifferentiated (Upper Pleistocene); Alluvial fans predominantly composed of reworked loess (Holocene); Alluvium (Holocene); Alluvium of the Pocatello Cr. Valley (Holocene); Aluvial fan gravel and alluvium of the ancestral Pocatello Cr. (Pleistocene); American Falls Lake Beds (Upper Pleistocene); Andesite Porphyry (Lower Pleistocene or Upper Pliocene); Basalt (Pleistocene or Pliocene); Basalt (Pliocene?); Basalt of Portneuf Valley (Upper Pleistocene); Beirdneau Formation (Upper Devonian); Blackrock Canyon Limestone (Late Proterozoic); Blacksmith and Bancroft Limestones undifferentiated (Middle Cambrian); Blacksmith Limestone (Middle Cambrian); Bloomington Formation (Middle Cambrian); Caddy Canyon Dolomite (Late Proterozoic); Caddy Canyon Quartzite (Late Proterozoic); Caddy Canyon Quartzite, Lower Member (Late Proterozoic); Caddy Canyon Quartzite, Upper Member (Late Proterozoic); Camelback Mountain Quartzite (Lower Cambrian and Late Proterozoic); Colluvium and talus deposits(Holocene and Pleistocene); Diacmictite (upper Miocene?); Diacmictite coverd by loess(upper Miocene?); Elkhead Limestone, (Middle Cambrian); Fish Haven Dolomite (Upper Ordovician); Garden City Formation (Lower Ordovician); Gibson Jack Formation (Middle and Lower Cambrian); Gravel and conglomerate (Middle and Upper Miocene); Gravel and conglomerate concealed by loess (Middle and Upper Miocene); Gravel deposits of the Bonneville Flood undifferentiated (Late Pleistocene); Gravel(Pleistocene or Pliocene); Gravelly collumvium. (Pleistocene); Gravelly current bar remnants of Michaud gravel (Late Pleistocene); Hyrum Dolomite (Upper Devonian); Inkom Formation (Late Proterozoic); Laketown Dolomite (Upper and Middle Silurian); Landslide deposits (Holocene and Late Pleistocene); Limestone, mostly float (Middle Cambrian); Little Flat Formation (Upper to Lower Mississippian); Lodgepole Limestone (Lower Mississippian); Loes that mantles Pleistocene gravelly colluvium (Pleistocene); Loess (Holocene and Pleistocene); Loess that mantles the early Pleistocene alluvial fan of Pocatello Creek. (Pleistocene); Loess thickly blanketing alluvial fans of Pinedale age (Late Pleistocene); Lower limestone member Great Blue Limestone (Upper Mississippian); Lower member Basalt flows (Upper Miocene); Lower member Basaltic breccia (Upper Miocene); Lower member Basaltic breccia concealed by loess (Upper Miocene); Lower member Basaltic tuff (Upper Miocene); Lower member Porphyritic basalt_Interstratified in basaltic tuff (Upper Miocene); Lower member Sedimentary breccia (diamictite); (Upper Miocene); Lower siltstone member Deep Creek Formation (Upper Mississippian); Member A Gibson Jack Formation (Lower Cambriain); Member B Gibson Jack Formation (Lower Cambriain); Member C Gibson Jack Formation (Lower Cambriain); Michaud Gravel (Upper Pleistocene); Middle member Tuff of Arbon Valley (Middle and Upper Miocene); Middle member Tuff of Arbon Valley-- concealed by loess (Middle and Upper Miocene); Modified artificially (Holocene); Monroe Canyon Limestone (Upper Mississippian); Mututal Formation (Late Proterozoic); Nounan Formation(Upper and Middle Cambrian); Null; Older Alluvium (Upper Pleistocene); Paleozoic Rocks (Paleozoic); Papoose Creek Formation (Late Proterozoic); Poc. Form. Scout Mountain Member, uppter quartzite part (Late Proterozoic); Poc. Form., Scout Mountain Member, lower cobble conglomerate part (Late Proterozoic); Poc. Form., Scout Mountain, middle diamictite part (Late Proterozoic); Poc. Form., Bannock Volcanic Member (Late Proterozoic); Poc. Form., Scout Mtn. Mem., lower diamictite unit (Late Proterozoic); Poc. Form., Scout Mtn. Mem., lower quartzite unit (Late Proterozoic); Poc. Form., Scout Mtn. Mem., lower sandstone unit 1 (Late Proterozoic); Poc. Form., Scout Mtn. Mem., lower sandstone unit 2 (Late Proterozoic); Poc. Form., Scout Mtn. Mem., lower sandstone unit 3 (Late Proterozoic); Poc. Form., Scout Mtn. Mem., middle unit (Late Proterozoic); Poc. Form., Scout Mtn. Mem., upper diamictite unit (Late Proterozoic); Poc. Form., Scout Mtn. Mem., upper sandstone and limestone unit (Late Proterozoic); Poc. Form., Scout Mtn. Mem., upper unit (Late Proterozoic); Pocatello Formation, Upper Member (Late Proterozoic); Pocatello Formation, Upper Member, unit a (Late Proterozoic); Pocatello Formation, Upper Member, unit b (Late Proterozoic); Rhyolite (Lower Pleistocene or Upper Pliocene); Rhyolite (Pleistocene or Pliocene); Salt Lake Formation (Pliocene and Miocene); Salt Lake Formation, Conglomerate memeber(Pliocene and Miocene); Salt Lake Formation, Frothy member(Pliocene and Miocene); Salt Lake Formation, Tuff memeber(Pliocene and Miocene); Starlight Formation (Middle Pliocene); Starlight Formation, Lower Member, rhyolite (Upper Miocene); Starlight Formation, Lower Member, Rhyolite of Two and a Half Mile Creek (Upper Miocene); Starlight Formation, Lower Member, ryolitic tuff (Upper Miocene); Starlight Formation, Rhyolite Porphyry, unit 1 (Middle and Upper Miocene); Starlight Formation, Rhyolite Porphyry, unit 2 (Middle and Upper Miocene); Starlight Formation, Undifferentiated, loess covered (Middle and Upper Miocene); Starlight Formation, Upper Member (Middle and Upper Miocene); Starlight Formation, Upper Member, Aphanitic basalt (Upper Miocene); Starlight Formation, Upper Member, conglomerate unit (Middle and Upper Miocene); Starlight Formation, Upper Member, gravity slide block (Middle and Upper Miocene); Starlight Formation, Upper Member, rhyolite air-fall tuff #1 (Middle and Upper Miocene); Starlight Formation, Upper Member, rhyolite air-fall tuff #2 (Middle and Upper Miocene); Starlight Formation, Upper Member, rhyolite air-fall tuff #3 (Middle and Upper Miocene); Starlight Formation, Upper Member, rhyolite air-fall tuff #4 (Middle and Upper Miocene); Starlight Formation, Upper Member, rhyolite air-fall tuff, undif. (Middle and Upper Miocene Swan Peak quartzite, undifferentiated (Middle Ordovician); Talus(Holocene and Pleistocene); Travertine (Upper Pleistocene); Upper chart-banded member Deep Creek Formation (Upper Mississippian); Upper member Rhyolite Porphyry (Middle and Upper Miocene); Upper member Vitrophyre (Middle and Upper Miocene); Walcott Tuff (Middle Pliocene); water; Worm Creek Quartzite Member St. Charles Formation (Upper Cambrian).
      Attribute format type: Character
      Attribute format length: 104
      Attribute measurement resolution: Not applicable
      Attribute units of measure: Not applicable
      Attribute value accuracy: Unknown
      Attribute value accuracy explanation: Unknown
      Attribute measurement frequency: Unknown

VI. Source information:

Source citation:
      Title: Geology of the Pocatello 30 x 60 Minute Quadrangle
      Originator: Idaho Geologic Survey, Moscow, Idaho
      Publication date: Unpublished
Source contribution: Unknown
Source scale denominator: 1:24,000
Type of source media: Digital

VII. Processing steps:

Process description: Prior processing was performed by the Idaho Geologic Survey (IGS) in Moscow, Idaho. The data is unpublished at this time. For more information regarding how the data was produced, contact Louden R. Standford, IGS, Moscow, Idaho. The data was provided to the ISU GIS Center through the IGS, Department of Geology at Idaho State University. Original processing performed at the ISU GIS Center is unknown with the exception of data projection into State Plane Idaho East NAD83, and data was exported as a shapefile for use in ArcView software. As of November 1999, the data was imported into ArcView and adjacent polygons with the same attribute information were dissolved using the ArcView Geoprocessing Wizard. The geologic description attributes were joined to the polygon attribute table. The shapefile was imported into ArcInfo (ShapeArc). The topology was built (ArcClean) and attribute information retained (RegionPoly). The unneeded attributes were dropped (Dropitem), and coverage was exported as an Arc Interchange File (e00).

Process contact: GIS Training and Research Center - Idaho State University. Prior data processor: Loudon R. Stanford, GIS/CAD production and data manager, Idaho Geological Survey, Morrill Hall, Room 332, University of Idaho, Moscow, ID 83844-3014, Phone: (208)885-7991, Fax: (208)885-5826, e-mail: stanford@uidaho.edu, web page: http://www.uidaho.edu/igs/igs.html

VIII. Data quality:

Horizontal positional accuracy value: Unknown
Horizontal positional accuracy explanation: Unknown
Vertical positional accuracy statement: Unknown
Vertical positional accuracy explanation: Not applicable
Attribute accuracy value: Unknown
Attribute accuracy explanation: Unknown
Logical consistency report: The polygon topology is present. Every polygon has the appropriate label and all polygons are closed.
Completeness report: Complete pending review

IX. Metadata Reference:

Metadata date: March 3, 2000
Metadata contact organization: Michelle Byrd, GIS Training and Research Center - Idaho State University
Metadata standard name: Idaho Metadata Profile
Metadata standard version: 4.0
Metadata access constraints: Person(s) not working in this organization must first contact the data custodian before using the metadata.
Metadata use constraints: This metadata set may not be distributed outside this organization.

X. Access Information:

Non-digital form: Graphical printout
Format Name: Arc interchange file compressed with WinZip version 7.0. The file size < 3.5MB in interchange file format (e00)
Online option: http://giscenter.isu.edu/data/RGI/RGI-home.htm
Access instructions: Contact custodian for passwords to data directory and compression
Offline option: Contact custodian
Access constraints: Available to RGI members only
Use constraints: Restricted to RGI members
Distribution liability: Custodian does not assume liability
Fees: None for RGI members
Ordering instructions: E-mail, phone, or standard mail to custodian
Turn-around: 3-5 working days
Technical prerequisites: Should have ArcView 3.x or Arc/Info 7.x
Security classification: Restricted
Security handling description: Check with data custodian on access restrictions