Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2014 Title: 2008PR_radiographs: TIFF image format of radiographs of gravity cores collected in 2008 by the U.S. Geological Survey around Puerto Rico and the U.S. Virgin Islands and accompanied by CSV and XLS files containing image lists and section information Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2014-1227 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2014/1227/data/4-CoreRadiographs/2008PR_radiographs.zip Larger_Work_Citation: Citation_Information: Originator: Shannon K. Hoy Originator: Jason D. Chaytor Originator: Uri S. ten Brink Publication_Date: 2014 Title: Core Data From Offshore Puerto Rico and the U.S. Virgin Islands Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2014-1227 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/ofr20141227 Description: 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. Purpose: To provide radiographs of some of the cores collected on USGS Field Activity 2008-008. The radiographs highlight sedimentary structures, especially bioturbation and the fine tails of turbidites. Supplemental_Information: For more information on the USGS cruise, please see . Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20080318 Ending_Date: 20080324 Currentness_Reference: ground condition; cores collected in 2008 Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -67.0795 East_Bounding_Coordinate: -64.82283 North_Bounding_Coordinate: 19.17558 South_Bounding_Coordinate: 17.55293 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: cores Theme_Keyword: gravity cores Theme_Keyword: Cruise ID SJHN08008 Theme_Keyword: WHSC field activity 2008-008-FA Theme_Keyword: R/V Seward Johnson Theme_Keyword: radiographs Theme_Keyword: TIFF Theme_Keyword: XLS spreadsheet Theme_Keyword: CSV file Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: oceans and coastal Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: Puerto Rico Place_Keyword: U.S. Virgin Islands Place_Keyword: Atlantic Place_Keyword: Caribbean Place_Keyword: Caribbean Sea Place_Keyword: Puerto Rico Trench Place_Keyword: Mona Passage Place_Keyword: Arecibo Amphitheater Place_Keyword: Loiza Amphitheater Place_Keyword: Whiting Basin Place_Keyword: Virgin Island Basin Place_Keyword: Anegada Passage 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. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jason D. Chaytor Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2351 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: jchaytor@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2014/1227/data/4-CoreRadiographs/2008PR_radiograph.jpg Browse_Graphic_File_Description: JPEG image of a sample of a radiograph image. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Due to the confusing naming convention, these images were checked over and over to make sure the naming convention matched the actual interval being described. Logical_Consistency_Report: The file naming convention is as follows: CCCC_SSSSS_I. CCCC is the core number (ie 5GGC), SSSSS is the section number (ie sect1), and I is the interval number (ie 1). Section number increase from bottom of the core to the top of the core, while interval numbers increase from the top of the core to the bottom and start over at 1 in each section. The exception to this naming convention is the additional file in core 5GGC, which is the core cutter section at the very bottom of the core and has the filename 5GGC_cc_1. Instead of offering a composite JPEG with all of the individual intervals compiled and aligned, the radiographs are offered as individual intervals. This is due to the fact that when the radiographs are taken, the outer edges decrease in accuracy and therefore lying one edge on top of the other creates inaccurate composites. > An example of a core and the order of the images from top to bottom is as follows: > >5GGC_sect2_1 >5GGC_sect2_2 >5GGC_sect2_3 >5GGC_sect2_4 >5GGC_sect2_5 >5GGC_sect1_1 >5GGC_sect1_2 >5GGC_sect1_3 >5GGC_sect1_4 >5GGC_sect1_5 >5GGC_cc_1 Completeness_Report: These data represent all the cores that were radiographed. Some cores were not radiographed due to core length and (or) time constraints. Radiographs are available for cores 5, 7, 8, 9, 13, 17, 18, 20, 21, 22, 33, 38, and 40. Core 33GGC ran past the ruler so the last section interval is approximated. The bottom section of core 38GGC was not scanned. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2014 Title: Core data from offshore Puerto Rico and the U.S. Virgin Islands Edition: 1.0 Series_Information: Series_Name: Open File Report Issue_Identification: 2014-1227 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2014/1227/ Type_of_Source_Media: physical samples Source_Citation_Abbreviation: GGC 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. Process_Step: Process_Description: Each core was cut into sections on the ship after collection. The cores were then split into halves back onshore. This process step and subsequent process steps were performed by the same person. Process_Date: 2008 Source_Produced_Citation_Abbreviation: Split_cores Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jason D. Chaytor Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2351 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: jchaytor@usgs.gov Process_Step: Process_Description: Once back onshore, digital x-radiographs of each core section were acquired at Falmouth Hospital (Falmouth, Massachusetts). The x-ray machine took approximately 30 cm interval photos of the cores. Each photo should overlap on each side with the preceding and succeeding interval by a few centimeters. The files were named for the core (ex 5GGC) then the section (1, 2, or 3) and then the interval (1, 2, 3, 4, or 5). The section numbers increase from bottom to top, while the interval numbers increase from top to bottom. The number in the photo is the frame number which increments consecutively from top to bottom. The excel spreadsheet (2008PR_radiographs.xls) give the image filename, the core from which is came, the interval of the total core represented, the frame number, and any additional notes. Within the images, the ruler measurement has a maximum value of 115 cm, so only represents the location within the section, not the core as a whole. For core 5GGC, the bottom-most section of the core is from the core cutter and indicates that in the filename (5GGC_cc_1) as opposed to having a section and interval number. *The interval for core 33GGC is approximate because the core ran past the ruler. ** The bottom 47 cm of core 38GGC was not scanned An example of a core and the order of the images from top to bottom is as follows: > >5GGC_sect2_1 >5GGC_sect2_2 >5GGC_sect2_3 >5GGC_sect2_4 >5GGC_sect2_5 >5GGC_sect1_1 >5GGC_sect1_2 >5GGC_sect1_3 >5GGC_sect1_4 >5GGC_sect1_5 >5GGC_cc_1 Source_Used_Citation_Abbreviation: Split_cores Process_Date: 2010 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Although the core radiograph images are not geospatial, they are related to the core locations which are available in the PRcore_locations shapefile available from http://pubs.usgs.gov/of/2014/1277/1-CoreLocations/PRcore_locations.zip. In addition to the radiograph images, an Excel 2010 spreadsheet is provided with the following columns of information: FileName, Core, Interval(cm), Ruler_inFrame(cm), FrameNum, Notes. A CSV (comma-delimited text) file is also provided with the same columns of information. The FileName is the prefix of the TIFF image, the Core indicates which core the image comes from, the Interval indicates the top and bottom interval in centimeters of the image location within the whole core, the FrameNum indicates the frame number which occurs in the lower portion of each TIFF image, and the Notes field contains additional information as necessary. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jason D. Chaytor Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2351 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: jchaytor@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Version_Number: tell software and version used to create image Format_Specification: TIFF image format Format_Information_Content: The zip file (WinZip version18) contains the individual radiograph TIFF images of intervals from each core x-rayed, an Excel 2010 spreadsheet containing the order and information for the images, and a CSV file containing the same information as the Excel spreadsheet, along with FGDC metadata. File_Decompression_Technique: WinZip Transfer_Size: 71 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2014/1227/data/4-CoreRadiographs/2008PR_radiographs.zip Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Version_Number: Excel 2010 Format_Specification: comma separated values Format_Information_Content: The zip file (WinZip version18) contains the individual radiograph TIFF images of intervals from each core x-rayed, an Excel 2010 spreadsheet containing the order and information for the images, and a CSV file containing the same information as the Excel spreadsheet, along with FGDC metadata. File_Decompression_Technique: WinZip Transfer_Size: 71 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2014/1227/data/4-CoreRadiographs/2008PR_radiographs.zip Digital_Form: Digital_Transfer_Information: Format_Name: XLS Format_Version_Number: Excel 2010 Format_Specification: MS Excel Format Format_Information_Content: The zip file (WinZip version18) contains the individual radiograph TIFF images of intervals from each core x-rayed, an Excel 2010 spreadsheet containing the order and information for the images, and a CSV file containing the same information as the Excel spreadsheet, along with FGDC metadata. File_Decompression_Technique: WinZip Transfer_Size: 71 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2014/1227/data/4-CoreRadiographs/2008PR_radiographs.zip Fees: None. Technical_Prerequisites: The end user must be capable of uncompressing a zip file and viewing a TIFF image. Metadata_Reference_Information: Metadata_Date: 20140313 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Shannon Hoy Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2297 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: shoy@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time