Identification_Information: Citation: Citation_Information: Originator: Russell C. Evarts Publication_Date: 2001 Title: Geologic map of the Silver Lake quadrangle, Cowlitz County, Washington Geospatial_Data_Presentation_Form: vector digital data Description: Abstract: This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits of the Silver lake 7.5 minute quadrangle. 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. Purpose: This database and accompanying plot files depict the distribution of geologic materials and structures at a regional (1:24,000) scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide potential, mineral hazards, seismic velocity, and earthquake faults. In addition, the report contains new information and interpretations about the regional geologic history and framework. However, the regional scale of this report does not provide sufficient detail for site development purposes. In addition, this map does not take the place of fault-rupture hazard zones designated by the Oregon State Geologist (REF?). Similarly, the database cannot be used to identify or delineate landslides in the region. Supplemental_Information: Procedures_Used: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are in either GRID (ARC/INFO raster data) format or COVERAGE (ARC/INFO vector data) format. Coverages are stored in uncompressed ARC export format (ARC/INFO version 7.x). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.1 to 3.11 is available for free from ESRI's web site: http://www.esri.com). The digital compilation was done in version 7.1.1 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The geologic map information was digitized from stable originals of the geologic maps at 1:24,000 scale. The author manuscripts (pen on mylar and pen on paper) were scanned using a Anatek rasterizing color scanner with a resolution of 600 and 400 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, color boundaries were tagged as appropriate, and scanning artifacts visible at 1:24,000 were removed. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.875284 East_Bounding_Coordinate: -122.749430 North_Bounding_Coordinate: 46.374998 South_Bounding_Coordinate: 46.250002 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: geology Theme_Keyword: bedrock geology Theme_Keyword: surficial geology Theme_Keyword: geologic history Theme_Keyword: geologic structures Theme_Keyword: fault offset Theme_Keyword: Silver Lake Theme_Keyword: Pacific Northwest Theme_Keyword: Washington Place: Place_Keyword_Thesaurus: none Place_Keyword: Silver Lake, Washington Place_Keyword: Cowlitz County, Washington Access_Constraints: None Use_Constraints: Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:24,000 means that higher resolution information is 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 below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. 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Entity_Type: Entity_Type_Label: sl_clay.pat Attribute: Attribute_Label: FID Attribute: Attribute_Label: SHAPE Attribute: Attribute_Label: AREA Attribute: Attribute_Label: PERIMETER Attribute: Attribute_Label: SL_CLAY# Attribute: Attribute_Label: SL_CLAY-ID Attribute: Attribute_Label: PTTYPE Attribute: Attribute_Label: SAMPNO Attribute: Attribute_Label: SEL Attribute: Attribute_Label: SYMB Attribute: Attribute_Label: $ID Attribute: Attribute_Label: $POLYGONID Attribute: Attribute_Label: $SCALE Attribute: Attribute_Label: $ANGLE Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 4637 Column_Count: 3220 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Transverse Mercator Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -123.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 3.000000 Ordinate_Resolution: 3.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_Clarke_1866 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.400000 Denominator_of_Flattening_Ratio: 294.978698 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Database Coordinator Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 345 Middlefield Rd., M/S 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-4935 Contact_Facsimile_Telephone: 650-329-4936 Contact_Electronic_Mail_Address: kwheeler@usgs.gov Contact_Instructions: Resource_Description: USGS Miscellaneous Field Studies MF-2371 consists of both traditional geologic map products and ARC/INFO format geospatial databases. Furthermore, the traditional geologic map products (map sheets and pamphlets) can be obtained either as paper or as digital plot files. Distribution_Liability: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this publication 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: PostScript plotfile package, 2371ps.tar.gz Format_Version_Number: 1.0 Format_Version_Date: 2001 Format_Specification: PostScript files generated by ARC/INFO v. 7.2.1 (PS-Adobe-2.0 EPSF-1.2) Format_Information_Content: 1 PostScript plotfiles, for the map sheet. File_Decompression_Technique: TAR and gzip (see the pamphlet (readme.ps, readme.pdf, or readme.txt) for more information about TAR and gzip). Transfer_Size: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/2001/2371/2371ps.tar.gz Offline_Option: Offline_Media: CD-R Recording_Capacity: .7 GB Recording_Format: TAR file compressed with gzip Compatibility_Information: Digital_Form: Digital_Transfer_Information: Format_Name: PDF plotfile package, SL.PDF Format_Version_Number: 1.0 Format_Version_Date: 2001 Format_Specification: Adobe Acrobat PDF files, v. 4.0 Format_Information_Content: 2 PDF (Adobe Acrobat) plotfiles, one for the map sheet and one for the readme. File_Decompression_Technique: TAR and gzip (see the readme (readme.pdf, or readme.txt) for more information about TAR and gzip). Transfer_Size: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/2001/2371/SL.PDF Offline_Option: Offline_Media: CD-R Recording_Capacity: .7 GB Recording_Format: TAR file compressed with gzip Compatibility_Information: Digital_Form: Digital_Transfer_Information: Format_Name: Digital Database package, 2371db.tar.gz Format_Version_Number: 1.0 Format_Version_Date: 2001 Format_Specification: ARC/INFO v. 7.2.1 Format_Information_Content: 18 ARC/INFO export (.e00) files, along with supporting readme, plotfiles, revisions list, metadata (this file), and import AML. See the readme (readme.ps, readme.pdf, or readme.txt) or above for more information about the content of the digital database. File_Decompression_Technique: TAR and gzip (see the readme (readme.ps, readme.pdf, or readme.txt) for more information about TAR and gzip). Transfer_Size: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/2001/2371/2371db.tar.gz Offline_Option: Send a request with an Exabyte tape to the Database Coordinator via the contact information given above. Specify the Digital Database package (2371db.tgz). Offline_Media: CD-R Recording_Capacity: .7 GB Recording_Format: TAR file compressed with gzip Compatibility_Information: Fees: No fees for digital forms of the report. Ordering_Instructions: Digital files (both plotfiles and database files) can be obtained on-line as described above at the publication web-site, or by sending a request with an 8 mm Exabyte tape (described above) to the Database Coordinator at the address shown above. Be sure to include the name of the digital package you are requesting (PostScript plotfile package 2371ps.tgz, PDF plotfile package 2371pdf.tgz, OR ARC/INFO database package 2371db.tgz) Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing address Address: Box 25286, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: (303) 202-4200 Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: (303) 202-4695 Contact_Electronic_Mail_Address: infoservices@usgs.gov Hours_of_Service: Contact_Instructions: Resource_Description: USGS Miscellaneous Field Studies 01-XXX consists of both traditional geologic map products and ARC/INFO format geospatial databases. Furthermore, the traditional geologic map products (map sheets and pamphlets) can be obtained either as paper or as digital plot files. Distribution_Liability: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this publication 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. Standard_Order_Process: Non-digital_Form: Paper copies of the map sheets and pamphlet can be obtained by contacting USGS Information Services via the contact information listed above. Fees: Plotting fees are set by USGS Information Services, and may be obtained by contacting them via the contact information given above. Ordering_Instructions: Paper copies of the map sheets and pamphlet can be obtained by contacting USGS Information Services via the contact information listed above. Metadata_Reference_Information: Metadata_Date: 20010323 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey Contact_Person: Karen L. Wheeler Contact_Address: Address_Type: 345 Middlefield Rd. MS 975 City: Menlo Park State_or_Province: California Postal_Code: 94025 Contact_Voice_Telephone: 650-329-4935 Contact_Facsimile_Telephone: 650-329-4936 Contact_Electronic_Mail_Address: kwheeler@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile