Part I: Lithology of the offshore San Diego area; Part II: Foraminifera, Coronado Bank 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: William S. Butcher

Publication_Date: 1951

Title:

Part I: Lithology of the offshore San Diego area; Part II: Foraminifera, Coronado Bank and vicinity, California

Geospatial_Data_Presentation_Form: Paper

Publication_Information:

Publication_Place: Los Angeles

Publisher: University of California

Other_Citation_Details:

PhD. dissertation. Parts included in Submarine Geology off San Diego, California, by K.O. Emery, W.S. Butcher, H.R. Gould, and F.P. Shepard, Journal of Geology v. 60, number 6, pp. 551-548.

Description:

Abstract:

"The lithology of the land and island areas adjacent to the San Diego area are reviewed briefly. The geology of Los Coronados Islands is presented in more detail than formerly and the importance of faulting is shown. A total of 418 rock samples collected in the offshore San Diego area have been examined and classified lithologically. The rocks have been subdivided into three classifications on the basis of rounding and composition: 1.) rocks essentially in place, 2) transported rocks, and 3) authigenic rocks. Charts of the 3 lithologic classifications are presented. The rocks essentially in place and the transported rocks occupy two belts: 1.) Coronado Bank - Coronado Escarpment and 2) Pt. Loma - Tia Juana River. Cretaceous rocks are exposed off Pt. Loma; and Late Pliocene to Pleistocene, on Coronado Bank. These may be correlatives of the 'Chico' and San Diego formations, respectively. The transported rocks are derived from distant sources for the most part, but a small portion is derived from the outcrop areas. The authigenic rock is phosphorite which is almost confined to Coronado Bank. The age of the formation of the major portion of the phosphorite is believed to be post-Late Pliocene and pre-last glacial. The physiography of the area is dominated by the Coronado Escarpment, a probable fault scarp. North of the Los Coronados Islands, Loma Sea Valley and Coronado Canyon mark other faults. Los Coronados Islands are probably tilted fault blocks."

Purpose:

The study of the lithology of the offshore San Diego area has been undertaken with the purpose of determining the areas of bedrock outcrops, their lithology, and the geologic age. A further purpose of this study is to determine, in so far as possible, the structure of the area. The transported rocks are studied to determine their composition and origin. The authigenic rock, phosphorite, is studied to determine the age and mode of formation in this area.

Supplemental_Information:

Funded by the Office of Naval Research (N6-ori-111, Task 6). 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: 1951

Currentness_Reference: Publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -117.48333

East_Bounding_Coordinate: -117.15500

North_Bounding_Coordinate: 32.74833

South_Bounding_Coordinate: 32.31833

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: University of California, Los Angeles

Theme_Keyword: Grab

Theme_Keyword: Dredge

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 Structures

Theme_Keyword: Terrigenous Sediments

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)

Place_Keyword: California

Place_Keyword: San Diego

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Los Coronados Island

Place_Keyword: Coronado Bank

Temporal:

Temporal_Keyword_Thesaurus: Geologic

Temporal_Keyword: Cretaceous

Temporal_Keyword: Pleistocene

Temporal_Keyword: Late Pliocene

Access_Constraints: None. Report is available at libraries.

Use_Constraints: Cite William S. Butcher and UCLA as originator of the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of California

Contact_Address:

Address_Type: Physical

Address: Department of Earth and Space Sciences

Address: 595 Charles Young Drive East

City: Los Angeles

State_or_Province: CA

Postal_Code: 90095-1567

Contact_Voice_Telephone: 310-825-2779

Contact_Electronic_Mail_Address: info@ess.ucla.edu

Browse_Graphic:

Browse_Graphic_File_Name: Butcher_PhD_51

Browse_Graphic_File_Description:

Sample distribution with coastline and bathymetry for reference.

Browse_Graphic_File_Type: .jpg

Data_Set_Credit:

William S. Butcher at the University of California, Los Angeles 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:

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 are consistent.

Completeness_Report:

All data in Appendix A were digitized; Heavy mineral analyses (unlocated) and foraminiferal identification were not digitized.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Navigational technique not given in paper. Positions given to degrees minutes, tenths. Dredge samples have start and end positions; in usSEABED, point locations for dredged samples are taken at midpoints.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Depth determination technique not given in paper. Depths given in fathoms.

Lineage:

Process_Step:

Process_Description:

No information is given on the processing of the samples. Only simple descriptions are included in the report.

Process_Date: Unknown

Source_Produced_Citation_Abbreviation: Butcher_PhD_1951

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of California

Contact_Address:

Address_Type: Physical

Address: Department of Earth and Space Sciences

Address: 595 Charles Young Drive East

City: Los Angeles

State_or_Province: CA

Postal_Code: 90095-1567

Contact_Voice_Telephone: 310-825-2779

Contact_Electronic_Mail_Address: info@ess.ucla.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: 418

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.03167

Longitude_Resolution: 0.05500

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: Sample number

Attribute_Definition: Sample number

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain: 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: 506

Range_Domain_Maximum: 1570

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 1.0

Attribute:

Attribute_Label: Lithologic description

Attribute_Definition: Sample descriptions

Attribute_Definition_Source: Source report

Attribute_Domain_Values:

Unrepresentable_Domain:

Written text including shape, number of specimens, maximum size (in centimeters), and lithology.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of California

Contact_Address:

Address_Type: Physical

Address: Department of Earth and Space Sciences

Address: 595 Charles Young Drive East

City: Los Angeles

State_or_Province: CA

Postal_Code: 90095-1567

Contact_Voice_Telephone: 310-825-2779

Contact_Electronic_Mail_Address: info@ess.ucla.edu

Resource_Description: Butcher PhD 1951.

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.

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: 1945

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.