Metadata: Identification_Information: Citation: Citation_Information: Originator: Terry Tolan Originator: Marvin Beeson Originator: Karen L. Wheeler Publication_Date: 1999 Title: Geologic Map of the Scotts Mills, Silverton, and Stayton Northeast 7.5 Minute Quadrangles, Northwest Oregon: A Digital Database: Silverton Quadrangle Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 99-141 Online_Linkage: http://pubs.usgs.gov/of/1999/0141/ Description: Abstract: This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits of the Silverton 7.5 minute quadrangle along the eastern margin of the Willamette Valley and adjacent lower foothills (Waldo and Silverton Hills) of the Cascade Range. The major emphasis of this investigation was to identify and map Columbia River Basalt Group (CRBG) units and to utilize this detailed CRBG stratigraphy to identify and characterize structural features. Together with the accompanying text file (geol.txt or geol.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. Purpose: 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 plot files containing images of two geologic map sheets with explanation, as well as the accompanying text describing the geology of the area. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Currentness_Reference: Publication of digital geologic map database Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.88 East_Bounding_Coordinate: -122.75 North_Bounding_Coordinate: 45.13 South_Bounding_Coordinate: 45.00 Access_Constraints: none Use_Constraints: none Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geology Theme_Keyword: geologic maps Theme_Keyword: bedrock geologic units Theme_Keyword: geologic structure Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented Theme_Keyword: 3100 - Vector Theme_Keyword: 3110 - ESRI Theme_Keyword: 3112 - export Theme_Keyword: 1100 - Geology Theme_Keyword: 1101 - General Theme_Keyword: 3300 - Non-map Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f41047 = Marion Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Terry Tolan Contact_Organization: Portland State University Contact_Address: Address_Type: mailing Address: Department of Geology, Portland State University City: Portland State_or_Province: Oregon Postal_Code: 97207-0751 Country: USA Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/1999/0141/pdf/svsc.pdf Browse_Graphic_File_Description: A PDF representation of both Scotts Mills and Silverton quadrangles (sheet 1). Browse_Graphic_File_Type: PDF Native_Data_Set_Environment: ARC/INFO version 7.2.1 for NT Data_Quality_Information: Logical_Consistency_Report: This digital map database was compiled from previously published and unpublished data and new mapping by the authors. Completeness_Report: This digital database represents the general distribution of bedrock and surficial deposits of the Scotts Mills, Silverton, and Stayton NE 7.5 minute quadrangles along the eastern margin of the Willamette Valley and adjacent lower foothills (Waldo and Silverton Hills) of the Cascade Range. The major emphasis of this investigation was to identify and map Columbia River Basalt Group (CRBG) units within the Scotts Mills, Silverton, and Stayton NE quadrangles and to utilize this detailed CRBG stratigraphy to identify and characterize structural features. Lineage: Source_Information: Process_Step: Process_Description: Digital compilation Several different coverages were generated during the construction of each of the three geologic quadrangle maps. Negatives of USGS topographic bases and geologic mylar tracings were scanned at 400 dpi, 1-bit TIFF bi-level compression type 1 (uncompressed) with rows per strip = 12000 on an ANATEK rasterizing scanner, then images were converted to ESRI ARC/INFO grids. The raster grids were converted to vector coverages with ARC/INFO's gridline routine. Alacarte and some custom menus and amls were used to project, transform, edit, tag and build, lines, polygons, and points in each map. A digital layout or map collar was made with Adobe Illustrator. The plot amls run in ARC/INFO and call the coverages, grids, and EPS to make uncompressed PostScript files. All maps are in UTM projection, zone 10, units meters, 1:24,000 scale. The pamphlet that describes the geology is saved to EPS from Microsoft Word. Base maps The source of the base maps used is the U.S. Geological Survey, 1:24,000 scale topographic maps, which have a 10-foot contour intervals (provisional edition, 1987). One base map layer for each of the three 7.5 minute quadrangles was prepared from negatives. Topographic bases for Scotts Mills, Silverton, and Stayton NE quadrangles were scanned on an Ideal rasterizing scanner at 400 dpi as 1-bit TIFF images. Scanned TIFF images of the bases were registered and rectified in ARC/INFO and then made into grids. The images were clipped using ARC/INFO grid to conform to the area of the geologic coverages and merged with the geology grid to give an apparent transparent color image of both combined. These base map-geology layers are digital images but no information other than location is attached to the lines. The base-geology maps are provided for reference only. Process_Step: Process_Description: Creation of original metadata record Process_Date: 20000724 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jennifer Lenz Contact_Organization: US Geological Survey Contact_Address: Address_Type: mailing Address: 12201 Surise Valley Drive, Mail Stop 918 City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6974 Contact_Facsimile_Telephone: 703-648-6560 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: entity point SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: complete chain SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: unknown Ordinate_Resolution: unknown Planar_Distance_Units: meters Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: SLV_GEO.PAT Entity_Type_Definition: Silverton Geologic map units Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: PTYPE Attribute_Definition: Polygon type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qal Enumerated_Domain_Value_Definition: Alluvial deposits (Holocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qoal Enumerated_Domain_Value_Definition: Qoal Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tfsh Enumerated_Domain_Value_Definition: Basalt of Sand Hollow (middle Miocene) - Frenchman Springs Member, Wanapum Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tfsf Enumerated_Domain_Value_Definition: Basalt of Silver Falls (middle Miocene) - Frenchman Springs Member, Wanapum Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgsb Enumerated_Domain_Value_Definition: Sentinel Bluffs member (middle Miocene) - Grande Ronde Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgww Enumerated_Domain_Value_Definition: Winter Water member (middle Miocene) - Grande Ronde Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgou Enumerated_Domain_Value_Definition: Ortley and Umtanum members (middle Miocene) - Grande Ronde Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsm Enumerated_Domain_Value_Definition: Scotts Mills Formation-undifferentiated (Oligocene to lower Miocene?) - Grande Ronde Basalt Detailed_Description: Entity_Type: Entity_Type_Label: SLV_GEO.AAT Entity_Type_Definition: Linear geologic map features Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: contact, inferred Enumerated_Domain_Value_Definition: contact whose position is not known and inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: fault, concealed Enumerated_Domain_Value_Definition: Concealed and inferred fault Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: Outside boundary of mapped area Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, concealed Enumerated_Domain_Value_Definition: A normal fault whose position is concealed and inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, concealedm Enumerated_Domain_Value_Definition: Mainly concealed normal fault Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, inferred Enumerated_Domain_Value_Definition: A normal fault whose position was not observed and inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal fault, inferredm Enumerated_Domain_Value_Definition: A normal fault whose position is mainly(?) inferred. Detailed_Description: Entity_Type: Entity_Type_Label: SLV_GEO.PAT Entity_Type_Definition: Geologic unit at specific points Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: PTYPE Attribute_Definition: Point Type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qal Enumerated_Domain_Value_Definition: Alluvial deposits (Holocene) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Qoal Enumerated_Domain_Value_Definition: Qoal Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tfsh Enumerated_Domain_Value_Definition: Basalt of Sand Hollow (middle Miocene) - Frenchman Springs Member, Wanapum Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tfsf Enumerated_Domain_Value_Definition: Basalt of Silver Falls (middle Miocene) - Frenchman Springs Member, Wanapum Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgsb Enumerated_Domain_Value_Definition: Sentinel Bluffs member (middle Miocene) - Grande Ronde Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgww Enumerated_Domain_Value_Definition: Winter Water member (middle Miocene) - Grande Ronde Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tgou Enumerated_Domain_Value_Definition: Ortley and Umtanum members (middle Miocene) - Grande Ronde Basalt Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tsm Enumerated_Domain_Value_Definition: Scotts Mills Formation-undifferentiated (Oligocene to lower Miocene?) - Grande Ronde Basalt Detailed_Description: Entity_Type: Entity_Type_Label: SLV_STX.AAT Entity_Type_Definition: Linear structural features Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: cross-section Enumerated_Domain_Value_Definition: cross-section line Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, concealed Enumerated_Domain_Value_Definition: Monocline fold-axis that is concealed and inferred Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, concealedm Enumerated_Domain_Value_Definition: Monocline fold-axis that is mainly(?) concealed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, inferred Enumerated_Domain_Value_Definition: Monocline fold-axis whose position is inferred. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, inferredm Enumerated_Domain_Value_Definition: Monocline fold-axis whose position is mainly(?) inferred. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: f.a., monocline, plunge Enumerated_Domain_Value_Definition: Plunging monocline fold-axis Detailed_Description: Entity_Type: Entity_Type_Label: SCM_STX.PAT Entity_Type_Definition: Information on a singular bedding type and position Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: PTTYPE Attribute_Definition: Point type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bedding Enumerated_Domain_Value_Definition: bedding plane Attribute: Attribute_Label: DIP Attribute_Definition: Bedding Dip Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 30 Enumerated_Domain_Value_Definition: Bedding plane has a dip of 30 degrees. Attribute: Attribute_Label: STRIKE Attribute_Definition: Bedding strike Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 323 Enumerated_Domain_Value_Definition: Bedding plane has a strike of 323 degrees. Detailed_Description: Entity_Type: Entity_Type_Label: SLV_NEAT.AAT Entity_Type_Definition: Neatline for Silverton and Scotts Mills Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: LTYPE Attribute_Definition: Line Type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: map boundary Enumerated_Domain_Value_Definition: outline of mapped area around both Silverton and Scotts Mills quadrangles Detailed_Description: Entity_Type: Entity_Type_Label: SLV_WELL.PAT Entity_Type_Definition: well sample data Entity_Type_Definition_Source: OFR-99-0141 Attribute: Attribute_Label: PTTYPE Attribute_Definition: Point Type Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: well location Enumerated_Domain_Value_Definition: Location of sample well Attribute: Attribute_Label: SAMPNO Attribute_Definition: Sample number to identify well Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 18259 Range_Domain_Maximum: 50652 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ? Enumerated_Domain_Value_Definition: unknown sample number Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (blank) Enumerated_Domain_Value_Definition: no well information Attribute: Attribute_Label: TOB Attribute_Definition: elevation relative to sea level to top of basalt in feet Attribute_Definition_Source: OFR-99-0141 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -529 Range_Domain_Maximum: +215 Attribute_Units_of_Measure: feet Attribute_Measurement_Resolution: 1 Overview_Description: Entity_and_Attribute_Overview: >LINE TYPES > >GEOLOGY - SLV_GEO: >contact, inferred >fault, concealed >map boundary >normal fault, concealed >normal fault, concealedm >normal fault, inferred >normal fault, inferredm > >STRUCTURE - SLV_STX: >cross-section >f.a., monocline, concealed >f.a., monocline, concealedm >f.a., monocline, inferred >f.a., monocline, inferredm >f.a., monocline, plunge > >NEAT - SLV_NEAT: >map boundary Entity_and_Attribute_Detail_Citation: More information can be found in the included readme file. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Information Services Contact_Address: Address_Type: mailing address Address: Box 25248, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80255-0286 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 1-303-202-4693 Contact_Electronic_Mail_Address: infoservices@usgs.gov Resource_Description: USGS OFR 99-141 Distribution_Liability: 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 Scotts Mills, Silverton, and Stayton Northeast 7.5 Minute Quadrangles: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: ARC/INFO version 7.2.1 for NT Format_Information_Content: geologic units, faults, and structural measurement points Transfer_Size: 10 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/1999/0141/sssofr.tar.gz Fees: none Metadata_Reference_Information: Metadata_Date: 20160610 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Midwest Area Contact_Position: Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/ Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998