Descriptions of the 10 bagged samples collected during 2008-008-FA from offshore Puerto Rico and the U.S. Virgin Islands collected by the U.S. Geological Survey in 2008

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Frequently anticipated questions:

What does this data set describe?

Title:
Descriptions of the 10 bagged samples collected during 2008-008-FA from offshore Puerto Rico and the U.S. Virgin Islands collected by the U.S. Geological Survey in 2008
Abstract:
In 2008, as a collaborative effort between Woods Hole Oceanographic Institution and the U.S. Geological Survey, 20 giant gravity cores were collected from areas surrounding Puerto Rico and the U.S. Virgin Islands. The regions sampled have had many large earthquake and landslide events, some of which are believed to have triggered tsunamis. The objective of this coring cruise, carried out aboard the National Oceanic and Atmospheric Administration research vessel Seward Johnson, was to determine the age of several substantial slope failures and seismite layers near Puerto Rico in an effort to map their temporal distribution. Data gathered from the cores collected in 2008 and 11 archive cores from the Lamont-Doherty Earth Observatory are included in this report. These data include lithologic logs, core summary sheets, x-ray fluorescence, wet-bulk density, magnetic susceptibility, grain-size analyses, radiographs, and radiocarbon age dates.
Supplemental_Information:
For more information on the USGS cruise, please see: https://cmgds.marine.usgs.gov/fan_info.php?fan=2008-008-FA
  1. How might this data set be cited?
    U.S. Geological Survey, 2014, Descriptions of the 10 bagged samples collected during 2008-008-FA from offshore Puerto Rico and the U.S. Virgin Islands collected by the U.S. Geological Survey in 2008: Open-File Report 2014-1227, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Hoy, Shannon K., Chaytor, Jason D., and Uri S. ten Brink, 2014, Core Data From Offshore Puerto Rico and the U.S. Virgin Islands: Open-File Report 2014-1227, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -67.4303
    East_Bounding_Coordinate: -65.80428
    North_Bounding_Coordinate: 19.17558
    South_Bounding_Coordinate: 17.552930
  3. What does it look like?
    https://pubs.usgs.gov/of/2014/1227/data/10-BaggedSamples/2008PR_bagged.jpg (JPEG)
    Map of bag sample locations
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 17-Mar-2008
    Ending_Date: 23-Mar-2008
    Currentness_Reference:
    ground condition; bag samples collected in 2008
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    Although the core bag sample descriptions are not geospatial, they are related to the core locations which are available in the PRcore_locations shapefile available from https://pubs.usgs.gov/of/2014/1227/data/1-CoreLocations/PRcore_locations.zip
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Jason D. Chaytor
    U.S. Geological Survey
    Research Geologist
    384 Woods Hole Road
    Woods Hole, MA

    (508) 548-8700 x2351 (voice)
    (508) 457-2310 (FAX)
    jchaytor@usgs.gov

Why was the data set created?

This provides the descriptions of the 10 bag samples collected from the core catcher or cutting head during 2008-008-FA.

How was the data set created?

  1. From what previous works were the data drawn?
    GGC (source 1 of 1)
    Hoy, Shannon K., Chaytor, Jason D., and Uri S. ten Brink, 2014, Core data from offshore Puerto Rico and the U.S. Virgin Islands: Open-File Report 2014-1227, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: physical samples
    Source_Contribution:
    The gravity cores collected during U.S. Geological Survey field activity 2008-008-FA. The Woods Hole Oceanographic Giant Gravity Corer (GGC) was used to collect the 20 cores in 2008. The gravity corer is a large diameter (10 centimeter) sampler that collects cores up to 6.5 meters in length. During field activity 2008-008-FA the corer was not rigged with liner longer than approximately 3 meters. Although cores were attempted at 40 core sites, core was recovered at only 20 sites. Seven additional sites yielded only samples (bagged) from the core catcher or cutting head. Of the 20 successful cores, three also have cutter/catcher bag samples.
  2. How were the data generated, processed, and modified?
    Date: 2008 (process 1 of 5)
    The samples from the core catcher or cutting head were collected and bagged up during 2008-008-FA. This and the subsequent step were performed by the same person. Person who carried out this activity:
    Jason D. Chaytor
    U.S. Geological Survey
    Research Geologist
    384 Woods Hole Road
    Woods Hole, MA

    (508) 548-8700 x2351 (voice)
    (508) 457-2310 (FAX)
    jchaytor@usgs.gov
    Data sources produced in this process:
    • Bag
    Date: unknown (process 2 of 5)
    Back on shore, the bagged samples were analyzed by Jason Chaytor for compositional, color and textural information. These observations were denoted in a Microsoft Word document and saved as a doc and a txt file. Data sources used in this process:
    • Bag
    Date: 03-Oct-2017 (process 3 of 5)
    Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Added additional online links in the Identification section. Fixed a link to data in the entity and attribute overview section. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 20-Jul-2018 (process 4 of 5)
    USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 08-Sep-2020 (process 5 of 5)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    Files were double checked that description matched the core that was being described.
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This document includes observations from the 10 sites during 2008-008-FA that yielded bag samples. The sites with only bag samples are: 1GGC, 2GGC, 3GGC, 6GGC, 11GGC, 32GGC, and 35GGC. Three sites provided a bag sample along with a core: 7GGC, 8GGC, and 9GGC. Missing numbers are due to failed sites as well as sites with a successful core but no bag sample.
  5. How consistent are the relationships among the observations, including topology?
    This includes all bag samples from the 2008-008-FA. These samples either came from the core catcher or the cutting head or both. The naming convention is ##GGC, with GGC standing for giant gravity corer.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
The Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
  1. Who distributes the data set? (Distributor 1 of 1)
    Jason D. Chaytor
    U.S. Geological Survey
    Research Geologist
    384 Woods Hole Road
    Woods Hole, MA

    (508) 548-8700 x2351 (voice)
    (508) 457-2310 (FAX)
    jchaytor@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: The WinZip version 18 file contains a doc and a txt file of the descriptions of the 10 bag samples from 2008-008-FA from offshore Puerto Rico and the U.S. Virgin Islands. As well as FGDC metadata. in format DOC (version Micrsoft Word 2010) microsoft word document Size: 0.02
      Network links: https://pubs.usgs.gov/of/2014/1227/data/10-BaggedSamples/2008PR_bagged.zip
      Data format: The WinZip version 18 file contains a doc and a txt file of the descriptions of the 10 bag samples from 2008-008-FA from offshore Puerto Rico and the U.S. Virgin Islands. As well as FGDC metadata. in format txt (version Microsoft 2010) text file Size: 0.02
      Network links: https://pubs.usgs.gov/of/2014/1227/data/10-BaggedSamples/2008PR_bagged.zip
    • Cost to order the data: None.

  5. What hardware or software do I need in order to use the data set?
    The user must be able to unzip a WinZip18 file along with view a doc and a txt file.

Who wrote the metadata?

Dates:
Last modified: 16-Nov-2021
Metadata author:
U.S. Geological Survey
Attn: Shannon K. Hoy
Research Associate II
384 Woods Hole Road
Woods Hole, MA
United States

(508) 548-8700 x2297 (voice)
(508) 457-2310 (FAX)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2014-1227/2008PR_baggedmeta.faq.html>
Generated by mp version 2.9.50 on Tue Nov 16 10:06:52 2021