Identification_Information: Citation: Citation_Information: Originator: Stephen C. Wolf Originator: Christina E. Gutmacher Publication_Date: 2004 Title: Geologic and bathymetric reconnaissance overview of the San Pedro shelf region, southern California Edition: Version 1.0, May 2004 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Open-File Report Issue_Identification: USGS OF 2004-1049 Publication_Information: Publication_Place: Menlo Park, California Publisher: U.S. Geological Survey Other_Citation_Details: Seven oversized sheets with maps at various scales. Online_Linkage: Description: Abstract: This report presents a series of maps that describe the bathymetry and late Quaternary geology of the San Pedro shelf area as interpreted from seismic-reflection profiles and 3.5-kHz and multibeam bathymetric data. Some of the seismic-reflection profiles were collected with Uniboom and 120-kJ sparker during surveys conducted by the U.S. Geological Survey (USGS) in 1973 (K-2-73-SC), 1978 (S-2-78-SC), and 1979 (S-2a-79-SC). The remaining seismic-reflection profiles were collected in 2000 using Geopulse boomer and minisparker during USGS cruise A-1-00-SC. The report consists of seven oversized sheets: 1. Map of 1978 and 1979 uniboom seismic-reflection and 3.5-kHz tracklines used to map faults and folds on San Pedro Shelf. 2. Maps of multibeam shaded bathymetric relief with faults and folds, and bathymetric contours. 3. Isopach map of unconsolidated sediment, seismic-reflection profile across the San Pedro shelf, seismic-reflection profile across San Gabriel paleo-valley. 4. Seismic-reflection profiles across the Palos Verdes Fault Zone. 5. Geologic map and samples of Uniboom and 120-kJ sparker seismic-reflection profiles used to make the map. 6. Map showing thickness of uppermost (Holocene?) sediment layer. 7. Map of San Gabriel Canyon paleo-valley and associated drainage basins. Purpose: These data are intended for science researchers, students, policy makers, and the general public. Supplemental_Information: Additional information about the field activities K-2-73-SC, S-2-78-SC, S-2a-79-SC and A-1-00-SC from which this data set was derived are available online at ; ; ; and . Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -118.33333 East_Bounding_Coordinate: -117.83333 North_Bounding_Coordinate: 33.78333 South_Bounding_Coordinate: 33.46667 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: sediment isopach Theme_Keyword: paleo-valley Theme_Keyword: erosional surface Theme_Keyword: Uniboom Theme_Keyword: Geopulse Theme_Keyword: 120-kJ sparker Theme_Keyword: minisparker Theme_Keyword: 3.5-kHz bathymetry Theme_Keyword: multibeam bathymetry Theme_Keyword: sedimentary basin Theme: Theme_Keyword_Thesaurus: NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 4.2.2 Theme_Keyword: bathymetry Place: Place_Keyword_Thesaurus: None Place_Keyword: Palos Verdes Fault Zone Place_Keyword: Cabrillo Fault Place_Keyword: San Pedro shelf Place_Keyword: Los Angeles River Place_Keyword: San Pedro Sea Valley Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS), USGS, Reston, VA Place_Keyword: Long Beach, California Place_Keyword: Newport Beach, California Place_Keyword: San Pedro Escarpment Place_Keyword: San Pedro, California Place_Keyword: Huntington Beach, California Place_Keyword: Santa Ana River Place_Keyword: Sunset Bay Place_Keyword: San Gabriel River Place_Keyword: San Gabriel Canyon Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Holocene Temporal_Keyword: Quaternary Access_Constraints: None Use_Constraints: The map dimensions may have been distorted in conversion to these graphics. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Christina Gutmacher Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5309 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: cgutmacher@usgs.gov Native_Data_Set_Environment: Adobe Illustrator Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2004/1049/images/minimap.jpg Browse_Graphic_File_Description: preview image of report Browse_Graphic_File_Type: gif or jpg Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Not evaluated. Logical_Consistency_Report: Observations mean the same thing throughout this report. Completeness_Report: Data are complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Not evaluated. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Gardner, James V. Originator: Dartnell, Peter Title: Multibeam mapping of the Los Angeles, California, margin Publication_Date: 2002 Series_Information: Series_Name: U.S. Geological Survey Open-file Report Issue_Identification: 02-162 Online_Linkage: http://geopubs.wr.usgs.gov/open-file/of02-162/ Type_of_Source_Media: map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Gardner and Dartnell (2002) Source_Contribution: bathymetry data and shaded-relief imagery Source_Information: Source_Citation: Citation_Information: Originator: Jennings, C.W. (compiler) Title: Geologic Map of California, Long Beach sheet Publication_Date: 1962 Series_Information: Series_Name: Geologic Atlas of California Issue_Identification: Long Beach sheet Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1962 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Jennings (1962) Source_Contribution: Cabrillo Fault and onshore part of Palos Verdes Fault, offshore bedrock sample locations and ages Process_Step: Process_Description: Shaded relief and bathymetric contours extracted from early Version of Gardner and Dartnell (2002); faults traced from Jennings (1962). All exported to Adobe Illustrator. Michael Hamer. Process_Date: 2000 Process_Step: Process_Description: Seismic-reflection profiles interpreted, sediment isopachs constructed, other geologic structures mapped in Adobe Illustrator. Stephen Wolf. Process_Date: 2000 Process_Step: Process_Description: Smooth Gardner and Dartnell (2002) bathymetry for use in open file maps. Florence Wong. Process_Date: 2003 Process_Step: Process_Description: Assist in editing per reviewer's comments. Christina Gutmacher. Process_Date: 2003 Process_Step: Process_Description: First draft of metadata created by Florence Wong using FGDCMETA.AML ver. 1.35 08/02/2000 on ArcInfo data set /we5/florence/socalmin/covswolf/box Process_Date: 20030812 Process_Step: Process_Description: Corrected metadata format and browse graphic link. Florence Wong Process_Date: 20060504 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: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 11 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -117.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 5.702245332676 Ordinate_Resolution: 5.702245332676 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Sediment thickness expressed as isopachs in meters. Outlines of drainage basins, axes of feeder channels as vectors. Folds and faults identified in seismic-reflection profiles as vectors. Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Person: Christina Gutmacher Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5309 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: cgutmacher@usgs.gov Resource_Description: U.S. Geological Survey Open-File Report 2004-1049. Distribution_Liability: Please recognize the U.S. Geological Survey (USGS) as the source of this information. 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: Format_Name: unspecified Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: URL Fees: No charge. Ordering_Instructions: Download from URL . Metadata_Reference_Information: Metadata_Date: 20060504 Metadata_Review_Date: 200405 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none