Metadata: Identification_Information: Citation: Citation_Information: Originator: Jeff W. Beeson Originator: Samuel Y. Johnson Originator: Susan A. Cochran Publication_Date: 2019 Title: Isopachs--Punta Gorda to Point Arena, California Geospatial_Data_Presentation_Form: shapefile Series_Information: Series_Name: Data Series Issue_Identification: DS 781 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9PNNI9H Online_Linkage: https://www.sciencebase.gov/catalog/item/5d128898e4b0941bde56eb62 Larger_Work_Citation: Citation_Information: Originator: Nadine E. Golden Publication_Date: 2013 Title: California State Waters Map Series Data Catalog Geospatial_Data_Presentation_Form: database Series_Information: Series_Name: Data Series Issue_Identification: DS 781 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/ds/781/ Online_Linkage: https://cmgds.marine.usgs.gov/data/csmp/ PuntaGordaToPointArena/data_catalog_PuntaGordaToPointArena.html Description: Abstract: This part of DS 781 presents data for the isopachs of the Punta Gorda to Point Arena, California, region. The vector data file is included in the "Isopachs_PuntaGordaToPointArena.zip," which is accessible from https://doi.org/10.5066/P9PNNI9H. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Punta Gorda and Point Arena was generated from seismic-reflection data collected between 2010 and 2012, and supplemented with geologic structure (fault) information following the methodology of Wong (2012). Reference Cited: Wong, F. L., Phillips, E.L., Johnson, S.Y., and Sliter, R.W., 2012, Modeling of depth to base of Last Glacial Maximum and seafloor sediment thickness for the California State Waters Map Series, eastern Santa Barbara Channel, California: U.S. Geological Survey Open-File Report 2012-1161, 16 p. (available at https://pubs.usgs.gov/of/2012/1161/). Purpose: To expand geologic mapping to the seafloor within the California's State Waters, to update coastal geologic mapping, and to contribute to a uniform regional geologic database, which can be used geographic information systems. Additionally, to aid in assessments and mitigation of geologic hazards in the Punta Gorda to Point Arena coastal region and to provide sufficient geologic information for land-use and land-management decisions both onshore and offshore. This information is not intended for navigational purposes. Supplemental_Information: Additional information about the field activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=C110NC https://cmgds.marine.usgs.gov/fan_info.php?fan=B510NC https://cmgds.marine.usgs.gov/fan_info.php?fan=B0412NC 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 Esri format, this metadata file may include some Esri-specific terminology. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100809 Ending_Date: 20120925 Currentness_Reference: ground condition at time seismic data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.452888 East_Bounding_Coordinate: -123.702617 North_Bounding_Coordinate: 40.300181 South_Bounding_Coordinate: 39.020333 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5d128898e4b0941bde56eb62 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: environment Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Physical Habitats and Geomorphology Theme_Keyword: Distributions Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: marine geology Theme_Keyword: seismic reflection methods Theme_Keyword: maps and atlases Theme_Keyword: stratigraphic thickness Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: sediment deposition Theme_Keyword: seismic reflection profiling Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: sediment thickness Theme_Keyword: sediment isopach Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: Punta Gorda Place_Keyword: Point Delgada Place_Keyword: Shelter Cove Place_Keyword: Fort Bragg Place_Keyword: Mendocino Place_Keyword: Point Arena Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: Spanish Canyon Place_Keyword: Delgada Canyon Place_Keyword: Noyo Canyon Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: US Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5d1288d4e4b0941bde56eb6b?name=Isopachs_PuntaGordaToPointArena.jpg&allowOpen=true Browse_Graphic_File_Description: Isopachs for the region between Point Sur and Point Arguello Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Esri ArcCatalog 10.0 Cross_Reference: Citation_Information: Originator: Jeff W. Beeson Originator: Originator: Samuel Y. Johnson Publication_Date: 2019 Title: Offshore shallow structure and sediment distribution, Punta Gorda to Point Arena, northern California Series_Information: Series_Name: Open-File Report Issue_Identification: 2019-1072 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20191072 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The data points from seismic-reflection profiles are dense along tracklines (about 1-2 m apart) and sparse between tracklines (typically 1,000 m apart). 50-m cell size for interpolation is better supported along track than between. Logical_Consistency_Report: No formal logical accuracy tests were conducted. All vector geometry and attributes are present. Completeness_Report: Sediment thickness data points exported from Kingdom Suite profiling software were processed within the California 3-nmi limit. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The sparker position may vary as much as 20 m from the navigation reference on the vessel. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Estimated to be approximately 1 m, along the track lines where data is well constrained, but may be much greater in areas where interpolation occurred. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Beeson, J.W. Originator: Johnson, S.Y. Originator: Goldfinger, C. Originator: Hartwell, S.R. Publication_Date: 2016 Title: Marine geophysical data—Point Arena to Cape Mendocino Geospatial_Data_Presentation_Form: SEG-Y Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F7GT5K8R Type_of_Source_Media: SEG-Y Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100809 Ending_Date: 20120925 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: seismic Source_Contribution: digital seismic data from Punta Gorda to Point Arena used to interpret subsurface geologic structure Source_Information: Source_Citation: Citation_Information: Originator: Jeff W. Beeson Originator: Samuel Y. Johnson Publication_Date: 2019 Title: Faults—Punta Gorda to Point Arena, California Geospatial_Data_Presentation_Form: shapefile Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi: 10.5066/P9PNNI9H Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9PNNI9H Type_of_Source_Media: shapefile Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2019 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: faults Source_Contribution: faults from Punta Gorda to Point Arena were used to interpret subsurface geologic structure Process_Step: Process_Description: Water bottom (seabed) and depth to base of the Last Glacial Maximum (LGM) horizons were digitized from seismic-reflection data using Kingdom Suite software. The difference between the two horizons was exported from Kingdom Suite for every shot point as XY coordinates (UTM Zone 10) and two-way travel time (TWT). The thickness was determined by applying a sound velocity to the TWT of 1,500 m/sec in water and 1,600 m/sec velocity in sediment, resulting in sediment thickness values. Source_Used_Citation_Abbreviation: seismic Source_Used_Citation_Abbreviation: faults Process_Date: 2017 Source_Produced_Citation_Abbreviation: SedimentThicknessPoints Process_Step: Process_Description: XY locations and sediment thickness values Z were imported to ArcGIS format as points and interpolated to a preliminary surface with TopoRaster from which isopachs (thickness contours) were extracted at 3.5 m intervals, with an additional contour at 0.25 m. Further refinement of this sediment thickness map and the isopach shapefile (see https://pubs.usgs.gov/ds/781/PuntaGordaToPointArena/data/Isopachs_PuntaGordaToPointArena.zip) was accomplished through several iterations of manual editing to incorporate geology and fault information following the methodology of Wong (2012; see http://pubs.usgs.gov/of/2012/1161/). Source_Used_Citation_Abbreviation: SedimentThicknessPoints Process_Date: 2017 Source_Produced_Citation_Abbreviation: Isopachs Process_Step: Process_Description: Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Process_Date: 20201019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov 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: 1332 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.00000 Latitude_of_Projection_Origin: 0.00000 False_Easting: 500000.0 False_Northing: 0.00 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 50.0 Ordinate_Resolution: 50.0 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.00 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Isopachs Entity_Type_Definition: lines of equal thickness Entity_Type_Definition_Source: standard sedimentology Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: OBJECTID Attribute_Definition: sequential feature number Attribute_Definition_Source: this study Attribute_Domain_Values: Unrepresentable_Domain: sequential feature numbers Attribute: Attribute_Label: CONTOUR Attribute_Definition: line of equal thickness Attribute_Definition_Source: this study Attribute_Domain_Values: Unrepresentable_Domain: lines of equal thickness Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: The .zip file (Isopachs_PointSurToPointArugello.zip) includes the .cpg, .dbf, .prj, .sbn, .sbx, .shp, .shp.xml, and .shx files, as well as FGDC-compliant metadata for the Isopach data layer in the Punta Gorda to Point Arena region of California. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Number: ArcMap (version 10.0, Esri, 2011) Format_Specification: Line features are in shapefile format and are projected in the UTM Zone 10 coordinate system Format_Information_Content: The .zip file includes the .cpg, .dbf, .prj, .sbn, .sbx, .shp, .shp.xml, and .shx files, as well as FGDC-compliant metadata for the Isopach data layer in the Punta Gorda to Point Arena region of California. File_Decompression_Technique: Winzip Transfer_Size: 15.9 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5d128898e4b0941bde56eb62?facet=Isopachs_PuntaGordaToPointArena.zip Network_Resource_Name: https://doi.org/10.5066/P9PNNI9H Network_Resource_Name: https://pubs.usgs.gov/ds/781/ Access_Instructions: The first link will begin a direct download of the data. The second link is a landing page on which all of the downloadable data for a particular region are listed. The third link is a landing page for the entire data catalog. Fees: None. Technical_Prerequisites: The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ArcMap TIFF. Users should download the ArcGIS project file, PuntaGordaToPointArenaGIS.mxd.zip, a compressed (with the "zip" command) version of the ArcMap document (.mxd) that has all the data layers loaded in the table of contents for "Punta Gorda to Point Arena" map region and has all the data symbolized as on the map sheets. Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS. Metadata_Reference_Information: Metadata_Date: 20201019 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998