Isopachs—Point Sur to Point Arguello, California

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Samuel Y. Johnson
Originator: Stephen R. Hartwell
Originator: Janet T. Watt
Originator: Jeffrey W. Beeson
Originator: Peter Dartnell
Originator: Susan A. Cochran
Publication_Date: 2019
Title: Isopachs—Point Sur to Point Arguello, 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/P97CZ0T7
Online_Linkage: 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:
Description:
Abstract:
This part of DS 781 presents data for the isopachs of the Point Sur to Point Arguello, California, region. The vector data file is included in the “Isopachs_PointSurToPointArguello.zip,” which is accessible from https://doi.org/10.5066/P97CZ0T7. 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 Point Sur and Point Arguello was generated from seismic-reflection data collected between 2008 and 2014, and supplemented with geologic structure (fault and fold) 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 Point Sur to Point Arguello 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=B0511CC https://cmgds.marine.usgs.gov/fan_info.php?fan=S609SC https://cmgds.marine.usgs.gov/fan_info.php?fan=S608SC https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-632-FA
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: 20080609
Ending_Date: 20140802
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: -121.930323
East_Bounding_Coordinate: -120.422454
North_Bounding_Coordinate: 36.262156
South_Bounding_Coordinate: 34.430992
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5c9137fce4b09388245480ce
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: Point Sur
Place_Keyword: Lafler Rock
Place_Keyword: Gamboa Point
Place_Keyword: Gorda
Place_Keyword: Ragged Point
Place_Keyword: Piedras Blancas
Place_Keyword: Cambria
Place_Keyword: Point Estero
Place_Keyword: Morro Bay
Place_Keyword: Point Buchon
Place_Keyword: Avila Beach
Place_Keyword: oceano Beach
Place_Keyword: Point Sal
Place_Keyword: Point Purisma
Place_Keyword: Point Arguello
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: 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: Originator: Samuel Y. Johnson
Originator: Stephen R. Hartwell
Originator: Janet T. Watt
Originator: Jeffrey W. Beeson
Originator: P Dartnell
Publication_Date: 2019
Title:
Offshore shallow structure and sediment distribution, Point Sur to Point Arguello, central California
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2018-1158
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/ofr20181158
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 800–1,000 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 Seisworks 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: Johnson, S.Y.
Originator: Hartwell, S.R.
Originator: Sliter, R.W.
Originator: Beeson, J.W.
Publication_Date: 2017
Title:
Minisparker seismic-reflection data of field activity B–05–11–CC, from Point Sur to Morro Bay, offshore central California, 2011–09–12 to 2011–09–26
Geospatial_Data_Presentation_Form: SEG-Y
Publication_Information:
Publication_Place: USGS National Archive of Marine Seismic Surveys database
Publisher: U.S. Geological Survey
Online_Linkage: https://walrus.wr.usgs.gov/namss/survey/b-05-11-cc/
Type_of_Source_Media: SEG-Y
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2011
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2011 seismic
Source_Contribution:
digital seismic data from Point Sur to Estero Bay used to interpret subsurface geologic structure
Source_Information:
Source_Citation:
Citation_Information:
Originator: Sliter, R.W.
Originator: Triezenberg, P.J.
Originator: Hart, P.E.
Originator: Watt, J.T.
Originator: Johnson, S.Y.
Originator: Scheirer, D.S.
Publication_Date: 2009
Title:
High-resolution seismic-reflection and marine magnetic data along the Hosgri Fault Zone, central California
Geospatial_Data_Presentation_Form: SEG-Y
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: OFR 2009-1100
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2009/1100/
Type_of_Source_Media: SEG-Y
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2009
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2009 seismic
Source_Contribution:
digital seismic data from Point Piedras Blancas to Point Sal used to interpret subsurface geologic structure
Source_Information:
Source_Citation:
Citation_Information:
Originator: Sliter, R.W.
Originator: Triezenberg, P.J.
Originator: Hart, P.E.
Originator: Watt, J.T.
Originator: Johnson, S.Y.
Originator: Scheirer, D.S.
Publication_Date: 2009
Title:
High-resolution seismic-reflection and marine magnetic data along the Hosgri Fault Zone, central California
Geospatial_Data_Presentation_Form: SEG-Y
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: OFR 2009-1100
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2009/1100/
Type_of_Source_Media: SEG-Y
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2008
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2008 seismic
Source_Contribution:
digital seismic data from Point Estero to San Luis Obispo Bay used to interpret subsurface geologic structure
Source_Information:
Source_Citation:
Citation_Information:
Originator: Johnson, S.Y.
Originator: Hartwell, S.R.
Originator: Beeson, J.W.
Publication_Date: 2016
Title:
Marine geophysical data—Point Sal to Refugio State Beach, southern California
Geospatial_Data_Presentation_Form: SEG-Y
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/F7SX6BCD
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7SX6BCD
Type_of_Source_Media: SEG-Y
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2014
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2014 seismic
Source_Contribution:
digital seismic data from Point Sal to Gaviota used to interpret subsurface geologic structure
Source_Information:
Source_Citation:
Citation_Information:
Originator: Samuel Y. Johnson
Originator: Stephen R. Hartwell
Originator: Janet T. Watt
Originator: Jeffrey W. Beeson
Originator: Peter Dartnell
Publication_Date: 2019
Title: Faults—Point Sur to Point Arguello, California
Geospatial_Data_Presentation_Form: shapefile
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: doi: 10.5066/P97CZ0T7
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P97CZ0T7
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 Point Sur to Point Arguello were used to interpret subsurface geologic structure
Source_Information:
Source_Citation:
Citation_Information:
Originator: Samuel Y. Johnson
Originator: Stephen R. Hartwell
Originator: Janet T. Watt
Originator: Jeffrey W. Beeson
Originator: Peter Dartnell
Publication_Date: 2019
Title: Folds—Point Sur to Point Arguello, California
Geospatial_Data_Presentation_Form: shapefile
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: doi: 10.5066/P97CZ0T7
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P97CZ0T7
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: folds
Source_Contribution:
folds from Point Sur to Point Arguello 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 Seisworks software. The difference between the two horizons was exported from Seisworks 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:
all sources listed above were used in the creation of this layer
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 2.5 m intervals. Further refinement of this sediment thickness map and the isopach shapefile (see https://pubs.usgs.gov/ds/781/PointSurToPointArguello/data/Isopachs_PointSurToPointArguello.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:
Edits were made as needed to correct data download links. No data were changed. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version.
Process_Date: 2020715
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Susan A Cochran
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission St.
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States
Contact_Voice_Telephone: 831-460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov
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: 589
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: ID
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: thickness measure
Attribute:
Attribute_Label: Type
Attribute_Definition: Type of contour
Attribute_Definition_Source: This report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Index
Enumerated_Domain_Value_Definition: Contour at 10m interval
Enumerated_Domain_Value_Definition_Source: This report
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Intermediate
Enumerated_Domain_Value_Definition: Contours at 2.5m interval
Enumerated_Domain_Value_Definition_Source: This report
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 downloadable data include a shapefile and associated files as well as FGDC-compliant metadata for the Isopach data layer in the Point Sur to Point Arguello 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 downloadable data include a shapefile and associated files as well as FGDC-compliant metadata for the Isopach data layer in the Point Sur to Point Arguello region of California.
File_Decompression_Technique: Winzip
Transfer_Size: 5.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
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 shapefile. Users should download the ArcGIS Project File (https://www.sciencebase.gov/catalog/item/5c91390fe4b09388245480e1?name=PointSurToPointArguelloGIS.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 "Point Sur to Point Arguello" 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

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/SeriesReports/DS_DDS/DS_781/XMLs_on_ScienceBase/P97CZ0T7_PtSurToPtArguello/Isopachs_PointSurToPointArguello_metadata.html>
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