Geologic Map of the Scotts Mills, Silverton, and Stayton Northeast 7.5 Minute Quadrangles, Northwest Oregon: A Digital Database: Scotts Mills Quadrangle

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

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: Scotts Mills Quadrangle

Geospatial_Data_Presentation_Form: map
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 99-0141

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This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits of the Scotts Mills 7.5 minute quadrangle along the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: -122.75
East_Bounding_Coordinate: -122.63
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: surficial 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: f41005 = Clackamas
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:

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
Planar_Distance_Units: meters

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: SCM_GEO.PAT
Entity_Type_Definition: Scotts Mills 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: Qls
Enumerated_Domain_Value_Definition: Landslide deposits (Pleistocene to Holocene)

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

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tlb
Enumerated_Domain_Value_Definition:

Little Butte Volcanics (late Eocene(?) to Oligocene(?)) - Grande Ronde Basalt

Detailed_Description:

Entity_Type:

Entity_Type_Label: SCM_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: contact, inferred, queried
Enumerated_Domain_Value_Definition: a contact whose position is questionable

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, 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: SCM_GEO.PAT
Entity_Type_Definition: Geologic unit at specific points
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: 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: Qls
Enumerated_Domain_Value_Definition: Landslide deposits (Pleistocene to Holocene)

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

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Tlb
Enumerated_Domain_Value_Definition:

Little Butte Volcanics (late Eocene(?) to Oligocene(?)) - Grande Ronde Basalt

Detailed_Description:

Entity_Type:

Entity_Type_Label: SCM_STX.AAT
Entity_Type_Definition:

Linear structures including fold-axis location and cross-section lines.

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., anticline, certainm
Enumerated_Domain_Value_Definition: Anticline fold-axis that was observed

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, concealed
Enumerated_Domain_Value_Definition: Anticline fold-axis that is concealed

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, concealed, queried
Enumerated_Domain_Value_Definition:

Anticline fold-axis whose position is concealed and questionable.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: f.a., anticline, inferredm
Enumerated_Domain_Value_Definition: anticline fold-axis whose position is mainly(?) inferred.

Detailed_Description:

Entity_Type:

Entity_Type_Label: SCM_STX.PAT
Entity_Type_Definition: Information on 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_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: vert joint
Enumerated_Domain_Value_Definition: Vertical joint

Attribute:

Attribute_Label: DIP
Attribute_Definition: Bedding Dip
Attribute_Definition_Source: OFR-99-0141
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 90
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: STRIKE
Attribute_Definition: Bedding strike
Attribute_Definition_Source: OFR-99-0141
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 357
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 1

Overview_Description:

Entity_and_Attribute_Overview:

GEOLOGY

SCM_GEO:
scm_geo
contact, inferred
contact, inferred, queried
map boundary
normal fault, concealed
normal fault, inferred
normal fault, inferredm

STRUCTURE

SCM_STX:
cross-section
f.a., anticline, certainm
f.a., anticline, concealed
f.a., anticline, concealed, queried
f.a., anticline, inferred
f.a., anticline, inferred, queried
f.a., anticline, inferredm

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 point measurements
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 Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/99-141/scottsmill.html>