High-resolution marine seismic reflection data from the San Francisco Bay area, collected in 1993 during USGS Field Activity J8-93-SF

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Metadata:

Identification_Information
Data_Quality_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Jonathan R. Childs
Originator: Patrick Hart
Originator: Terry R. Bruns
Originator: Michael S. Marlow
Originator: Ray Sliter
Publication_Date: 2000
Title:

High-resolution marine seismic reflection data from the San Francisco Bay area, collected in 1993 during USGS Field Activity J8-93-SF

Geospatial_Data_Presentation_Form: ASCII, gif, SEG-Y
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2000-0494

Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.3133/ofr00494
Online_Linkage: http://pubs.usgs.gov/of/2000/0494/
Larger_Work_Citation:

Citation_Information:

Originator: Jonathan R. Childs
Originator: Patrick Hart
Originator: Terry R. Bruns
Originator: Michael S. Marlow
Originator: Ray Sliter
Publication_Date: 2019
Title:

High-resolution marine seismic reflection data from the San Francisco Bay area

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2000-0494

Publication_Information:

Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.3133/ofr00494
Online_Linkage: http://pubs.usgs.gov/of/2000/0494/

Description:

Abstract:

Between 1993 and 1997, the U.S. Geological Survey acquired high-resolution, marine seismic-reflection profile data across submerged portions of known and inferred upper crustal fault zones throughout the greater San Francisco Bay area. This particular dataset was acquired in 1993 during USGS Field Activity J8-93-SF using the vessel David Johnston. The dataset includes navigational data in ASCII format, gif images of the seismic-profile lines, and seismic data in industry-standard SEG-Y format. These data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean (http://www.virtualocean.org/) earth science exploration and visualization applications.

Purpose:

Marine seismic reflection data are used to image and map sedimentary and structural features of the seafloor and subsurface. These data are useful in mapping faults (such as the San Andreas and Hayward Faults) where they pass under the waters of the San Francisco Bay, and in assessing other submarine geologic characteristics and features.

Supplemental_Information:

Additional information about the USGS field activity from which these data were collected may be found at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=J893SF
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 dataset 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: 19930727
Ending_Date: 19930729

Currentness_Reference: ground condition at time data were collected

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.583333
East_Bounding_Coordinate: -122.83333
North_Bounding_Coordinate: 37.5000
South_Bounding_Coordinate: 38.08333

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:c6b9dc50-04b9-4595-938c-2fd9a6be1968

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: marine seismic reflection profile
Theme_Keyword: SEG-Y data
Theme_Keyword: G295SF
Theme_Keyword: Robert Gray
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:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: substrate

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: seismic reflection profiling
Theme_Keyword: marine geophysics

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: seismic reflection methods
Theme_Keyword: sub-bottom profiling
Theme_Keyword: marine geophysics

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: San Francisco Bay
Place_Keyword: San Pablo Bay
Place_Keyword: San Andreas Fault
Place_Keyword: State of California

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Golden Gate
Place_Keyword: Northern California
Place_Keyword: Hayward Fault

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(s) 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

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Data_Quality_Information:

Logical_Consistency_Report: Unknown
Completeness_Report:

Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the accompanying Open-File Report carefully for additional details.

Lineage:

Process_Step:

Process_Description:

Seismic reflection profiles are acquired by means of an acoustic source (usually generated electromagnetically or with compressed air), and a hydrophone or hydrophone array. Both elements are typically towed in the water behind a survey vessel. The sound source emits a short acoustic pulse, which propagates through the water and sediment columns. The acoustic energy is reflected at density boundaries (such as the seafloor or sediment layers beneath the seafloor), and detected at the hydro-phone. This process is repeated at intervals ranging between 250 milliseconds and 10 seconds depending on the source type. Users are advised to read the Instrumentation and Data Processing sections of the accompanying Open-File Report for specifics to each data-collection cruise. Seismic data are stored in SEG-Y format, which is a standard digital format that can be read and manipulated by most seismic-processing software packages. The SEG-Y file format includes a 3200-byte descriptive header that should contain detailed information regarding the data acquisition and processing parameters. The navigation data are stored in flat ASCII files as latitude and longitude values that can be used to plot track maps of the seismic profiles at any scale or map projection desired. The data and format of the navigation files are described in the file prologue. Gif images of the seismic-reflection profiles are also available.

Process_Date: 19991005
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jonathan R. Childs
Contact_Organization: U.S. Geological Survey

Contact_Position: geophysicist
Contact_Address:

Address_Type: mailing and physical address
Address: Mail Stop 999 345 Middlefield Rd.
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025

Contact_Voice_Telephone: 650-329-5195
Contact_Electronic_Mail_Address: jchilds@usgs.gov

Process_Step:

Process_Description:

Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.

Process_Date: 20170124
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt

Contact_Position: Contractor -- Information Specialist
Contact_Address:

Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov

Process_Step:

Process_Description:

Edits were made to bring the metadata up to current PCMSC standards including information about the accompanying Open-File Report, standardizing authors' names, adding a doi# link, correcting typos, refining keywords, and using current access and distribution liability statements. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. 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: 20200102
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

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Seismic-reflection data are available in SEG-Y format, which includes self-contained headers with attribute information; navigation data are available in ASCII format with header information; profiles are available in gif format.

Entity_and_Attribute_Detail_Citation: Producer

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Clint Steele

Contact_Address:

Address_Type: mailing and physical address
Address: Mail Stop 999 345 Middlefield Rd.
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025

Contact_Voice_Telephone: 650-329-5055
Contact_Electronic_Mail_Address: csteele@usgs.gov

Resource_Description:

Downloadable SEG-Y data, navigation information in ASCII format, gif images of seismic-reflection profiles

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: various
File_Decompression_Technique: none

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://pubs.usgs.gov/of/2000/0494/#coverage
Network_Resource_Name: https://pubs.usgs.gov/of/2000/0494/#segy
Network_Resource_Name: https://pubs.usgs.gov/of/2000/0494/nav_meta/j893sf.ebc
Network_Resource_Name: https://pubs.usgs.gov/of/2000/0494/nav_meta/j893sf.txt

Access_Instructions:

Data can be downloaded using the Network_Resource_Name links. The first link takes the user to the section of the Open-File Report where the tracklines for all field activities can be seen in Figure 1. Figures 2 through 5 are zoomed in geographical areas that show the trackline numbers. The second link takes the user to the section of the Open-File Report where one can link to the digital SEG-Y data and profile images based on the geographical areas shown in Figures 2 through 5. The third link is for the header file of the SEG-Y data and describes many of the parameters. The fourth link is for the navigational data for this particular field activity. Users are advised to read the Open-File Report completely.

Fees: none

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: 95060-5792
Country: US

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/OFR/OFR_2000-0494/J8-93-SF.html>