WEST: Geologic Interpretation of the Geologic LOng-Range Inclined Asdic (GLORIA) composite sidescan sonar mosaic for the U.S. Pacific Coast (California, Oregon, Washington)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1991
Title:
WEST: Geologic Interpretation of the Geologic LOng-Range Inclined Asdic (GLORIA) composite sidescan sonar mosaic for the U.S. Pacific Coast (California, Oregon, Washington)
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 91-396
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage:
<http://coastalmap.marine.usgs.gov/GISdata/regional/westcoast/gloria/shapes/gloria_interp/west.zip>
Larger_Work_Citation:
Citation_Information:
Originator: Molly G. Groome
Originator: Christina E. Gutmacher
Originator: Andrew J. Stevenson
Publication_Date: 1997
Title:
Atlas of GLORIA Sidescan-Sonar Imagery of the Exclusive Economic Zone of the United States: EEZ-View
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 97-540
Publication_Information:
Publication_Place: Western Regional Coastal and Marine Geology, Menlo Park, CA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Description:
Abstract:
The GLORIA image of the Exclusive Economic Zone (EEZ) off California, Oregon, and Washington covers about 830,000 square kilometers (sq km) of sea floor. Many geologic features visible on the imagery are representative of a tectonically active continental margin: volcanic ridges and seamounts, faults, crustal lineaments, channels, levees, slump scars, large sediment bedforms, and varying sediment types. This data layer provides a geologic interpretation of the Geologic LO-Range Inclinded Asdic (GLORIA) data for the U.S. Pacific Coast.
Purpose:
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display information about the deep water Pacific Ocean area of the U.S. westcoast.
Supplemental_Information:
The geologic processes active along this margin differ north and south of about latitude 40º N due to a major change in the nature of the ocean-continent plate boundary. North of latitude 40º N, the North American Plate boundary is a subduction zone; south of 40º N the plate boundary is transform.
In the north, new ocean crust forms along the Juan de Fuca spreading center, as oceanic plates move apart. This spreading center is part of the global ridge system that extends 50,000 km through all the ocean basins. The Blanco Fracture Zone accommodates the offset between the Juan de Fuca Ridge and the Gorda Ridge. Cascadia Channel, a major sediment conduit, can be clearly traced from offshore central Oregon south to where it snakes through the Blanco Fracture Zone, and then heads off the mosaic to the west. The channel transports sediment from the Columbia and Fraser River systems westward more than 500 km across the Juan de Fuca and Pacific Plates. The Cascadia Subduction Zone is active along the Washington, Oregon, and northern California coasts: here the North American continental plate overrides both the Gorda and the Juan de Fuca oceanic plates, causing large earthquakes and creating the string of Cascade volcanoes in Oregon and Washington. The Mendocino Fracture Zone (MFZ) is a right-lateral transform fault that forms the boundary between the young crust of the Gorda Plate to the north and the older, more sediment-covered Pacific Plate to the south and accommodates the relative motion between these two tectonic plates. Use the magnifier tool to see the Gorda Ridge in more detail (bright, NE-SW trending feature between the Blanco and Mendocino Fracture Zones).
South of latitude 40º N, the transform plate boundary is located onshore near the shoreline. The geologic features most visible in the mosaic are deep-sea fans and seamounts. Perhaps the best-studied submarine fan in the area is the Monterey Fan. The continental margin off central California has a narrow shelf and steep slope. The margin extends from the shoreline to depths of 3,000 meters. Monterey Bay is a 40-km (N-S) by 10-km (E-W) reentrant of the coastline that forms a shallow, relatively broad portion of the shelf. The continental slope seaward of Monterey Bay is incised by the large Monterey Canyon system. This canyon system feeds sediment to the Monterey Fan, which covers about 100,000 sq km of sea floor. The Monterey Fan, bounded on the north by the Farallon Fan and on the south by the Murray Fracture Zone, thins to the west, ending more than 400 km from the shoreline.
The large influx of sediment along the central California margin, which created the numerous deep-sea fans, diminishes to the south. A large number of seamounts are visible along the southern California margin draped with only a thin covering of sediment.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 199112
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -131.293930
East_Bounding_Coordinate: -117.330009
North_Bounding_Coordinate: 48.564156
South_Bounding_Coordinate: 30.593853
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Western Region Coastal and Marine
Theme_Keyword: Geologic LO-Range Inclined Asdic
Theme_Keyword: GLORIA
Theme_Keyword: geologic interprepation
Theme_Keyword: geology
Theme_Keyword: polygon
Theme_Keyword: ArcView
Theme_Keyword: shapefile
Theme_Keyword: Exclusive Economic Zone
Theme_Keyword: EEZ
Theme_Keyword: sidescan sonar
Theme_Keyword: digital mosaic
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: U.S. Pacific Coast
Place_Keyword: U.S. west coast
Place_Keyword: North America
Place_Keyword: Pacific Ocean
Place_Keyword: United States
Place_Keyword: California
Place_Keyword: Oregon
Place_Keyword: Washington
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Florence Wong
Contact_Organization: U.S. Geological Survey
Contact_Electronic_Mail_Address: fwong@usgs.gov
Browse_Graphic:
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.2.0.700
Cross_Reference:
Citation_Information:
Originator: EEZ-SCAN 84 Scientific Staff
Publication_Date: 1986
Title:
Atlas of the Exclusive Economic Zone, western conterminous United States
Series_Information:
Series_Name: Miscellaneous Investigation Series
Issue_Identification: I-1792
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 152 p.
Cross_Reference:
Citation_Information:
Originator: Muriel S. Grim
Originator: Joseph M. Coddington
Originator: Russell A. Ambroziak
Originator: E.J. McFaul
Publication_Date: 1991
Title:
GLORIA IMAGERY AND BATHYMETRY from the U.S. EEZ off Washington, Oregon, and California
Series_Information:
Series_Name: Open File Report
Issue_Identification: 91-396
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 1 CD-ROM
Cross_Reference:
Citation_Information:
Originator: J.V. Gardner (editor)
Originator: M.E. Field (editor)
Originator: D.C. Twichell (editor)
Publication_Date: 1996
Title: Geology of the United States Seafloor: The View from GLORIA
Publication_Information:
Publication_Place: Cambridge, U.K.
Publisher: Cambridge University Press
Cross_Reference:
Citation_Information:
Originator: B.A. McGregor
Publication_Date: 1988
Title: Mapping the EEZ: The first million square miles
Series_Information:
Series_Name: U.S. Geological Survey Yearbook
Issue_Identification: Fiscal Year 1987, p. 64-68
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Cross_Reference:
Citation_Information:
Originator: M.L. Somers
Originator: R.M. Carson
Originator: J.A. Revie
Originator: R.H. Edge
Originator: B.J. Barrows
Originator: A.G. Edwards
Publication_Date: 1978
Title: GLORIA II-an improved long range sidescan sonar
Series_Information:
Series_Name:
Processings of the Institute of Electrical Engineering on Offshore Instrumentation and Communications
Issue_Identification: Oceanology International Technical Session J, p.16-24
Publication_Information:
Publication_Place: London, England
Publisher: BPS Publications Ltd.

Data_Quality_Information:
Attribute_Accuracy:
Logical_Consistency_Report:
No additional checks for topological consistency were performed on the data.
Lineage:
Process_Step:

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 6406

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: west.dbf
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of the polygon in native units
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00005
Range_Domain_Maximum: 11.004130
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: .000001
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of polygon in native units
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.012005
Range_Domain_Maximum: 67.797420
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: .000001
Attribute:
Attribute_Label: UNIT
Attribute_Definition: Geologic Unit
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: nodat
Enumerated_Domain_Value_Definition: No Data
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Bfz
Enumerated_Domain_Value_Definition: Basement fracture zone
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Brb
Enumerated_Domain_Value_Definition: Basement ridge with sparse sediment cover
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Brs
Enumerated_Domain_Value_Definition: Basement ridge with thick sediment cover
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Bsb
Enumerated_Domain_Value_Definition: Basement seamounts with sparse sediment cover
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Bss
Enumerated_Domain_Value_Definition: Basement seamounts with thick sediment cover
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: CM
Enumerated_Domain_Value_Definition: Continental margin
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Sb
Enumerated_Domain_Value_Definition: Sediment, basin facies
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Sc
Enumerated_Domain_Value_Definition: Sediment, channeled
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Sdf
Enumerated_Domain_Value_Definition: Sediment, debris flow
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Sdl
Enumerated_Domain_Value_Definition: Sediment, depositional lobe
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Sdf
Enumerated_Domain_Value_Definition: Sediment, fan facies
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Sfbf
Enumerated_Domain_Value_Definition: Sediment - fan facies with large bedforms
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Ss
Enumerated_Domain_Value_Definition: Sediment, slump
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: Ssfs
Enumerated_Domain_Value_Definition: Sediment, sea-floor-spreading texture
Enumerated_Domain_Value_Definition_Source: USGS
Enumerated_Domain:
Enumerated_Domain_Value: V
Enumerated_Domain_Value_Definition: Individual volcano with crater
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: DESCRIPTIO
Attribute_Definition: Character string containing text description of geologic layer.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: USREGION
Attribute_Definition: String defining U.S. region
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string containing "West Coast"
Overview_Description:

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Florence Wong
Contact_Position: GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650) 329-5327
Contact_Facsimile_Telephone: (540) 329-5198
Contact_Electronic_Mail_Address: fwong@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 9.298
Technical_Prerequisites:
These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com.

Metadata_Reference_Information:
Metadata_Date: 20040128
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Valerie Paskevich
Contact_Position: Information Specialist, GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2281
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vpaskevich@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_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.8 on Mon Nov 09 15:40:00 2009