A restudy of bottom sediments near the entrance of the Golden Gate

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Byron Schatz
Publication_Date: 1963
Title:
A restudy of bottom sediments near the entrance of the Golden Gate
Geospatial_Data_Presentation_Form: Paper
Series_Information:
Series_Name: Hydraulic Engineering Laboratory Technical Report
Issue_Identification: HEL 4-3
Publication_Information:
Publication_Place: Berkeley, CA
Publisher: University of California
Description:
Abstract: No specific abstract is given in the report
Purpose:
"A restudy of the selected offshore samples was initiated in order to determine the existence of zones of heavy minerals or 'pay streaks' of heavy mineral accumulation and their relation to median grain diameters of bottom surface sediments."
Supplemental_Information:
This work was related to NSF Grant G-18123. Several maps were prepared using the mechanical analysis data of Trask 1953. Data digitized by the USGS for inclusion into usSEABED (<http://walrus.wr.usgs.gov/usseabed>)
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1969
Currentness_Reference: Publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.7931
East_Bounding_Coordinate: -122.4831
North_Bounding_Coordinate: 37.8588
South_Bounding_Coordinate: 37.7234
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: University of California, Berkeley
Theme_Keyword: Hydraulic Engineering Laboratory
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans and Estuaries
Theme_Keyword: Location
Theme_Keyword: GeoscientificInformation
Theme:
Theme_Keyword_Thesaurus:
NASA/Global Change Master Directory (GCMD) Earth Science Keyword. Version 5.3.3
Theme_Keyword: Marine Sediments
Theme_Keyword: Sediment Composition
Theme_Keyword: Sedimentary Textures
Theme_Keyword: Terrigenous Sediments
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: California
Place_Keyword: Golden Gate Bridge
Access_Constraints: Available at the USGS library and others
Use_Constraints:
Cite Byron Schatz and the University of California, Berkeley as the source of the information
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of California
Contact_Address:
Address_Type: Mail
Address: Department of Civil and Environmental Engineering
Address: 760 Davis Hall
City: Berkeley
State_or_Province: CA
Postal_Code: 94720-1710
Contact_Voice_Telephone: 510-642-3261
Browse_Graphic:
Browse_Graphic_File_Name: HEL4-3
Browse_Graphic_File_Description: Sample distribution with bathymetry and coastline for reference
Browse_Graphic_File_Type: .jpg
Data_Set_Credit:
Byron Scatz at the University of California at Berkeley for the collection and analysis of data. For inclusion into usSEABED: Digitization: Jennifer Mendonca (USGS, data) and Nadine Golden (USGS, locations); Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado)
Native_Data_Set_Environment:
Tkme: Another editor for formal metadata by Peter N. Schweitzer (U.S. Geological Survey, Reston, VA 22092), version 2.9.13, Microsoft Windows Version 5.1; Microsoft Word 2000 9.0
Cross_Reference:
Citation_Information:
Originator: P.D. Trask
Publication_Date: 1954
Title: San Francisco Bay sediment study
Geospatial_Data_Presentation_Form: Paper
Series_Information:
Series_Name: University of California Institute of Engineering Research
Issue_Identification: 57, issues 1 and 2
Publication_Information:
Publication_Place: Berkeley, CA
Publisher: University of California
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
No estimate made for the accuracy of the data in the original report. Data digitized by the USGS and partners were visually compared to the source data, and corrected. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS.
Logical_Consistency_Report: Data fall within normal ranges for median grain size values.
Completeness_Report:
All data were digitized unless locations or values could not be resolved during digitization. Percents of heavy minerals in the 74 to 177 micron size range was digitized from figure 5. Not digitized were the percent of bottom samples in the 77 to 147 micron size range and the percent of bottom samples in the 105 to 61 micron size range (figures 3 and 4, respectively)
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigational technique not stated, although some samples may have been gathered by Navy divers. Locations were digitized in ArcMap 8.3 using a scanned copy of the figure 1.
Lineage:
Process_Step:
Process_Description:
Grain size processing technique is not given in report. Heavy mineral separation by bromoform; identification technique not stated in report. For usSEABED, locations were digitized using ArcMap 8.3, and sitenames represent median grain size in microns.
Process_Date: 1962
Source_Produced_Citation_Abbreviation: HEL 4-3
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of California
Contact_Address:
Address_Type: Mail
Address: Department of Civil and Environmental Engineering
Address: 760 Davis Hall
City: Berkeley
State_or_Province: CA
Postal_Code: 94720-1710
Contact_Voice_Telephone: 510-642-3261
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 195
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: .0001
Longitude_Resolution: .0001
Geographic_Coordinate_Units: Decimal degrees
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Point
Entity_Type_Definition: SDTS point
Entity_Type_Definition_Source: Source report
Attribute:
Attribute_Label: Median
Attribute_Definition: Median grain size
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 20
Range_Domain_Maximum: 670
Attribute_Units_of_Measure: Microns
Attribute_Measurement_Resolution: 1.0
Attribute:
Attribute_Label: Heavy minerals
Attribute_Definition: Heavy minerals in 74-177 micron size fraction
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 61
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 1.0
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of California
Contact_Address:
Address_Type: Mail
Address: Department of Civil and Environmental Engineering
Address: 760 Davis Hall
City: Berkeley
State_or_Province: CA
Postal_Code: 94720-1710
Contact_Voice_Telephone: 510-642-3261
Resource_Description: HEL Report 2-4
Distribution_Liability:
Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of limitations of the data due to possible imprecision due to navigational inaccuracies and limitations of the statistical data.
Standard_Order_Process:
Non-digital_Form: Report is available at libraries.
Fees: None
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mail and physical
Address: 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Contact_Voice_Telephone: 650.329.5026
Contact_Electronic_Mail_Address: men_lib@usgs.gov
Resource_Description: S(276) UN39hel no. 4-3
Distribution_Liability:
Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of the limitations of the data due to possible imprecision due to navigational inaccuracies, statistical limitations, and digitizing errors.
Standard_Order_Process:
Non-digital_Form:
Report is available for viewing or checkout at the USGS library, Menlo Park, and at other libraries.
Fees: None
Technical_Prerequisites: None
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1964
Metadata_Reference_Information:
Metadata_Date: 2005
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Jane A. Reid
Contact_Position: Geologist
Contact_Address:
Address_Type: Physical and mail
Address: 400 Natural Bridges Drive
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-427-4727
Contact_Electronic_Mail_Address: jareid@usgs.gov
Contact_Instructions: Email preferred
Metadata_Standard_Name: CSDGM Version 2
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
Metadata was written by a user of the data. Any information contained in the physical report is authoritative and supercedes any information given here.
Generated by mp version 2.8.17 on Sun May 21 08:20:07 2006