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.