Metadata: Identification_Information: Citation: Citation_Information: Originator: Janet T. Watt Originator: Michael W. Manson Originator: H. Gary Greene Publication_Date: 2014 Title: Faults--Offshore of Point Reyes Map Area, California Geospatial_Data_Presentation_Form: vector digital data Larger_Work_Citation: Citation_Information: Originator: Janet T. Watt Originator: Peter Dartnell Originator: Nadine E. Golden Originator: H. Gary Greene Originator: Mercedes D. Erdey Originator: Guy R. Cochrane Originator: Samuel Y. Johnson Originator: Stephen R. Hartwell Originator: Rikk G. Kvitek Originator: Michael W. Manson Originator: Charles A. Endris Originator: Bryan E. Dieter Originator: Ray W. Sliter Originator: Lisa M. Krigsman Originator: Erik N. Lowe Originator: John L. Chin Publication_Date: 2015 Title: California State Waters Map Series--Offshore of Point Reyes map area, California Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Open-File Report Issue_Identification: OFR 2015-1114 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2015/1114/ 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/ Description: Abstract: This part of DS 781 presents data for the geologic and geomorphic map of the Offshore of Point Reyes map area, California. The vector data file is included in "Faults_OffshorePointReyes.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshorePointReyes/data_catalog_OffshorePointReyes.html. Faults in the Point Reyes map area are identified on seismic-reflection data based on abrupt truncation or warping of reflections and (or) juxtaposition of reflection panels with different seismic parameters such as reflection presence, amplitude, frequency, geometry, continuity, and vertical sequence. The Point Reyes Fault Zone runs through the map area and is an offshore curvilinear reverse fault zone with predominantly north-side-up motion (Hoskins and Griffiths, 1971; McCulloch, 1987; Heck and others, 1990; Stozek, 2012) that likely connects with the western San Gregorio fault further to the south (Ryan and others, 2008), making it part of the San Andreas Fault System. The Point Reyes Fault Zone is characterized by a 5 to 11 km-wide zone of deformation in the shallow subsurface that is associated with two main fault structures, the Point Reyes Fault and the western Point Reyes Fault. Near the Point Reyes headland, vertical displacement of granitic basement across the Point Reyes Fault is at least 1.4 km (McCulloch, 1987). Offshore Double Point, vertical displacement on the Point Reyes Fault is difficult to assess because subsurface age constraints from nearby wells are lacking, and there are few offset horizons across the fault imaged on available seismic data. However, warping and folding of Neogene strata are clearly visible on high-resolution seismic data . The western Point Reyes Fault is defined by a broad anticlinal structure visible in both industry and high-resolution seismic datasets that exhibits that same sense of vergence (north-side-up) as the Point Reyes Fault. Faults were primarily mapped by interpretation of seismic reflection profile data (see field activity S-8-09-NC). The seismic reflection profiles were collected in 2009. References Cited Heck, R.G., Edwards, E.B., Kronen, J.D., Jr., and Willingham, C.R., 1990, Petroleum potential of the offshore outer Santa Cruz and Bodega basins, California, in Garrison, R.E., Greene, H.G., Hicks, K.R., Weber, G.E., and Wright, T.L., eds. Geology and tectonics of the central California coastal region, San Francisco to Monterey: Pacific Section, American Association of Petroleum Geologists Bulletin GB67, p. 143-164. Hoskins E.G., Griffiths, J.R., 1971, Hydrocarbon potential of northern and central California offshore: American Association of Petroleum Geologists Memoir 15, p. 212-228. McCulloch, D.S., 1987, Regional geology and hydrocarbon potential of offshore central California, in Scholl, D.W., Grantz, A., and Vedder, J.G., eds., Geology and Resource Potential of the Continental Margin of Western North America and Adjacent Oceans Beaufort Sea to Baja California: Houston, Texas, Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 6., p. 353-401. Ryan, H.F., Parsons, T., and Sliter, R.W., 2008, Vertical tectonic deformation associated with the San Andreas Fault offshore of San Francisco, California: Tectonophysics, v. 475, p. 209-223. Stozek, B.A., 2012, Geophysical evidence for Quaternary deformation within the offshore San Andreas fault system, northern California: Masters Thesis, San Francisco State University, 141 p. 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 provide a geologic map for the public and geoscience community to aid in assessments and mitigation of geologic hazards in the Point Reyes 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: Map political location: Marin County, California Compilation scale: 1:24,000 Base maps used are hillshades generated from IfSAR, LiDAR, and multibeam mapping both onshore and offshore (see see Bathymetry--Offshore Point Reyes, California, DS 781 for more information). Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2009 Ending_Date: 2009 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -123.094 East_Bounding_Coordinate: -122.894 North_Bounding_Coordinate: 38.098 South_Bounding_Coordinate: 37.940 Keywords: Theme: Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Theme_Keyword: Oceans > Bathymetry/SeafloorTopography > Bathymetry Theme_Keyword: Oceans > Bathymetry/SeafloorTopography > Seafloor Topography Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: environment Theme_Keyword: oceans Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: Multibeam bathymetry Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: Benthic marine habitat Theme_Keyword: Seafloor mapping Theme_Keyword: Offshore geology Theme_Keyword: GIS Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: Point Reyes Place_Keyword: Drakes Bay Place_Keyword: Marin County Place_Keyword: Drakes Estero Access_Constraints: If physical samples or materials are available, constraints on their on-site access are described in "WR CMG Sample Distribution Policy" at URL: http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html Use_Constraints: This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data. Acknowledge the U.S. Geological Survey in products derived from these data. Share data products developed using these data with the U.S. Geological Survey. This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Pacific Coastal and Marine Science Center Contact_Person: Stephen Hartwell Contact_Position: Geologist Contact_Address: Address_Type: physical address Address: 400 Natural Bridges Drive City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Country: USA Contact_Voice_Telephone: (831) 460-7814 Contact_Facsimile_Telephone: (831) 427-4748 Contact_Electronic_Mail_Address: shartwell@usgs.gov Native_Data_Set_Environment: Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.0.2414 Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/ds/781/OffshorePointReyes/images/Faults_OffshorePointReyes.jpg Browse_Graphic_File_Description: Faults Offshore of Point Reyes map area. Browse_Graphic_File_Type: JPEG Data_Quality_Information: Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, and other errors by the lead authors and by the GIS technician(s) who created the digital database. Review drafts of the map were reviewed internally by at least two other geologists for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: Data are complete: no offshore features that could be accurately identified and represented at the compilation scale of 1:24,000 were eliminated or generalized. The smallest area represented is approximately 100 square meters. All geospatial database elements are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Faults were primarily mapped by interpretation of seismic reflection profile data (see S-15-10-NC). Faults lines were digitized by heads-up screen digitization on to shot-point picks from seismic- line navigation data - each shot point has an associated lat/long in the survey data. Error is introduced from layback, as well as from interpretation of oblique features, so horizontal accuracy of fault and fold location is estimated to be on the order of 10 to 20 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey (USGS) , Coastal and Marine Geology Program (CMGP) Publication_Date: 2013 Title: Subbottom survey data of field activity S-8-09-NC in Stinson Beach to Point Arena (CA) from 09/08/2009 to 09/30/2009 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey (USGS) , Coastal and Marine Geology (CMG) Online_Linkage: http://walrus.wr.usgs.gov/infobank/gos/s-8-09-nc.fmeta.xml Online_Linkage: http://walrus.wr.usgs.gov/infobank/s/s809nc/html/s-8-09-nc.meta.html Type_of_Source_Media: ASCII lat/long shot point files Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20090908 Ending_Date: 20090930 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: S-8-09-NC Source_Contribution: Digital seismic data used to interpret subsurface geologic structure Process_Step: Process_Description: Faults were mapped onto shot lines based on the latitude and longitude of seismic picks from field activity S-8-09-NC. Process_Date: 2011 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: 3 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: WGS 1984 UTM Zone 10N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0001 Ordinate_Resolution: 0.0001 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: D WGS 1984 Ellipsoid_Name: WGS 1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Faults Entity_Type_Definition: lines representing mapped faults Entity_Type_Definition_Source: This report 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: FGDCRefNo Attribute_Definition: FGDC Digital Cartographic Standard for geologic map symbolization Attribute_Definition_Source: This report Attribute_Domain_Values: Unrepresentable_Domain: text field containing the reference number for the FGDC Digital Cartographic Standard for geologic map symbolization Attribute: Attribute_Label: Shape_Leng Attribute_Definition: Length of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-4309 Distribution_Liability: These databases, identified as fault maps of offshore Point Reyes and Vicinity, California have been approved for release and publication by the U.S. Geological Survey (USGS). Although these databases have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at 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. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. These data are not intended for navigational use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: SHP Format_Version_Number: ArcMap (version 10.0, ESRI , 2011) Format_Specification: Point, line, and polygon features are in shapefile format and are projected in UTM Zone 10 coordinates, with datum WGS84. Format_Information_Content: The .zip file for a shapefile includes the .aux, .dbf, .shp, .shx, .sbx, and .sbn files, as well as the text (.txt) and XML (.shp.xml) versions of the metadata for the Faults data layer of Offshore Point Reyes, California. File_Decompression_Technique: WinZip Transfer_Size: 0.2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/781/OffshorePointReyes/data/Faults_OffshorePointReyes.zip Network_Resource_Name: http://pubs.usgs.gov/ds/781/ Access_Instructions: Data can be downloaded via the World Wide Web (WWW) 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 SHP. Users should download the ArcGIS Project File, OffshorePointReyesGIS.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 "Offshore Point Reyes" and has all the data symbolized as on the OFR 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: 20140923 Metadata_Review_Date: 20150610 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Coastal and Marine Geology Program Contact_Person: Stephen R. Hartwell Contact_Address: Address_Type: mailing and physical address Address: 400 Natural Bridges Drive City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: US Contact_Voice_Telephone: 831-460-7814 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: shartwell@usgs.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998