Marine geology of San Pedro and Santa Monica Basins and vicinity, California

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: Donn S. Gorsline

Publication_Date: 1958

Title:

Marine geology of San Pedro and Santa Monica Basins and vicinity, California

Geospatial_Data_Presentation_Form: Paper

Publication_Information:

Publication_Place: Los Angeles, CA

Publisher: University of Southern California

Other_Citation_Details:

Support from the California Research Corporation to K.O. Emery. Ship, office, and laboratory facilities support from the Allan Hancock Foundation.

Description:

Abstract: No formal abstract is given.

Purpose:

"It is evident...that the study of the source of basin sediments in a modern basin in a fairly well known area can be a most valuable contribution. Information of this type is of prime importance in working with the economic deposits of ancient basins, and it implements the related studies of basin-sediment characteristics and organic accumulation. It can also form a basis for the development of a systematic picture of the evolution of basin-sediment types, and of the stages in the development of the associations of these various types in time. For such a study the San Pedro and Santa Monica Basins are ideal. They represent basins in an intermediate stage of fill, bordered by areas whose characteristics are quite well known, and they are easily accessible. In addition, they are part of a basin and range area, which offers examples of basins of similar size, origin, and history, and in various stages of that history. It was for these reasons that the two basins were chosen as subjects for the present study."

Supplemental_Information:

All stations were occupied with the University of Southern California's Research Vessel, Velero IV. 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: 1958

Currentness_Reference: Publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -119.904

East_Bounding_Coordinate: -118.097

North_Bounding_Coordinate: 34.064

South_Bounding_Coordinate: 33.019

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: University of Southern California

Theme_Keyword: Allan Hancock Foundation

Theme_Keyword: Piston core

Theme_Keyword: Gravity core

Theme_Keyword: Hayward grab

Theme_Keyword: Campbell grab

Theme_Keyword: Dietz-Emery core

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: Biogenic Sediments

Theme_Keyword: Sediment Chemistry

Theme_Keyword: Sediment Composition

Theme_Keyword: Sedimentary Structures

Theme_Keyword: Sedimentary Textures

Theme_Keyword: Terrigenous Sediments

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)

Place_Keyword: California

Place_Keyword: Continental

Place_Keyword: Borderland

Place_Keyword: San Pedro Basin

Place_Keyword: Santa Monica Basin

Access_Constraints:

None. Report is available at the USGS Library and other libraries.

Use_Constraints:

Cite Donn S. Gorsline and the University of Southern California as originators of the data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Donn S. Gorsline

Contact_Organization: University of Southern California

Contact_Address:

Address_Type: Physical

Address: Zumberge Hall

Address: 3651 Trousdale Parkway

City: Los Angeles

State_or_Province: CA

Postal_Code: 90089

Contact_Voice_Telephone: 213- 740-5125

Contact_Electronic_Mail_Address: gorsline@earth.usc.edu

Browse_Graphic:

Browse_Graphic_File_Name: Gorsline_PhD_1958

Browse_Graphic_File_Description:

Sample distribution with coastline and bathymetry for reference.

Browse_Graphic_File_Type: .jpg

Data_Set_Credit:

Donn S. Gorsline at the University of Southern California for the collection and analysis of data. For inclusion into usSEABED: digitization: Jane Reid (USGS); 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

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Locations, descriptions, statistical data were digitized by hand (typed in), visually compared to source and corrected as needed. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS.

Logical_Consistency_Report: Data fall within normal ranges for analytical results.

Completeness_Report:

For usSEABED, appendices 1,2, and 3 were completely digitized, except pages 262 and 285. Some information from the report text is also included in usSEABED.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Navigational techniques not noted in the report. Locations given to minutes, seconds.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Depth determination techniques not noted in the report. Locations given to nearest fathom.

Lineage:

Process_Step:

Process_Description:

"Surface sediment samples were split in the laboratory and their size parameters determined. In several instances, one cut was given to geochemists of the Allan Hancock Foundation staff for special organic analyses. Carbonate content was also determined for this sample series by the chemists. The sands (coarse fractions) of the sampler were classified using a heavy liquid medium (acetylene tetrabromide, sp. Gr. About 2.9) and the composition of the fractions was then determined by stain techniques and by microscopical examination (LeRoy, 1949; Twenhofel and Tyler, 1941). ... Because of the large number of samples studied (more than 1,200), the writer made many modifications of the standard techniques(Krumbein and Pettijohn, 1941). These modifications include partial textural analyses (Plumley and Davis, 1956), visual composition estimates of coarse fractions (Shepard and Moore, 1954), and comparative techniques after the basic principles discussed (Emery and Gould, 1948). In all textural analyses and computations, the parameter defined by Trask were used (Trask, 1932).

Source_Used_Citation_Abbreviation: LeRoy, 1949

Source_Used_Citation_Abbreviation: Twenhofel and Tyler, 1941

Source_Used_Citation_Abbreviation: Krumbein and Pettijohn, 1941

Source_Used_Citation_Abbreviation: Plumley and Davis, 1956

Source_Used_Citation_Abbreviation: Shepard and Moore, 1954

Source_Used_Citation_Abbreviation: Trask, 1932

Source_Used_Citation_Abbreviation: Emery and Gould, 1948

Process_Date: Unknown

Source_Produced_Citation_Abbreviation: Gorsline_PhD_1958

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Donn S. Gorsline

Contact_Organization: University of Southern California

Contact_Address:

Address_Type: Physical

Address: Zumberge Hall

Address: 3651 Trousdale Parkway

City: Los Angeles

State_or_Province: CA

Postal_Code: 90089

Contact_Voice_Telephone: 213- 740-5125

Contact_Electronic_Mail_Address: gorsline@earth.usc.edu

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

Point_and_Vector_Object_Count: 278

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00028

Longitude_Resolution: 0.00028

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: AHF Sta. #

Attribute_Definition: Station number

Attribute_Definition_Source: Allan Hancock Foundation

Attribute_Domain_Values:

Unrepresentable_Domain: Sequential alpha numeric code

Attribute:

Attribute_Label: Water depth

Attribute_Definition: Water depth

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 13

Range_Domain_Maximum: 903

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 1.0

Attribute:

Attribute_Label: Subsample depth

Attribute_Definition: Depth of subsample in core

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 5.38

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Gravel

Attribute_Definition: Gravel

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 61.4

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Sand

Attribute_Definition: Sand

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Silt

Attribute_Definition: Silt

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.4

Range_Domain_Maximum: 89.6

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Clay

Attribute_Definition: Clay

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.7

Range_Domain_Maximum: 54.4

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Mud

Attribute_Definition: Mud

Attribute_Definition_Source: Krumbein and Pettijohn, 1938

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 11.5

Range_Domain_Maximum: 99.3

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Median

Attribute_Definition: Median grainsize distribution

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.74

Range_Domain_Maximum: 8.38

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Sorting

Attribute_Definition: Standard deviation of grainsize distribution (sorting)

Attribute_Definition_Source: Trask, 1932

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.26

Range_Domain_Maximum: 7.3

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Q1

Attribute_Definition: First quartile of grainsize distribution

Attribute_Definition_Source: Trask, 1932

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.79

Range_Domain_Maximum: 6.64

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Q3

Attribute_Definition: Third quartile of grainsize distribution

Attribute_Definition_Source: Trask, 1932

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.94

Range_Domain_Maximum: 10.2

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: CaCO3

Attribute_Definition: CaCO3 in sample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.8

Range_Domain_Maximum: 9

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Nitrogen

Attribute_Definition: Nitrogen in sample

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.042

Range_Domain_Maximum: 0.441

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Petrographic analyses

Attribute_Definition: Petrographic analyses

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain:

Percents of foraminifera, detrital grains, and mica; grain counts of plagioclase, potash-feldspar, calcite, and quartz.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Southern California

Contact_Address:

Address_Type: Physical

Address: Zumberge Hall

Address: 3651 Trousdale Parkway

City: Los Angeles

State_or_Province: CA

Postal_Code: 90089

Contact_Voice_Telephone: 213-740-6106

Resource_Description: Gorsline PhD 1958

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

Technical_Prerequisites: None

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1958

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.