U.S. Geological Survey
2014
2008PRcores_mscl: CSV and XLS tables of multi-sensor core logger data collected from 19 cores collected by the U.S. Geological Survey in 2008 from offshore Puerto Rico and the U.S. Virgin Islands
1.0
Open-File Report
2014-1227
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://pubs.usgs.gov/of/2014/1227/data/5-Multi-SensorCoreLogger/2008PRcores_mscl.zip
Shannon K. Hoy
Jason D. Chaytor
Uri S. ten Brink
2014
Core Data From Offshore Puerto Rico and the U.S. Virgin Islands
1.0
Open-File Report
2014-1227
Reston, VA
U.S. Geological Survey
https://dx.doi.org/10.3133/ofr20141227
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.
To provide XLS and CSV files of multi-sensor core logger data from 19 cores collected during USGS Field Activity 2008-008-FA from offshore Puerto Rico and the U.S. Virgin Islands. There are separate tables for each individual core.
For more information on the USGS cruise, please see <http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2008-008-FA>.
20080318
20080324
ground condition; cores collected in 2008
None planned
-67.0795
-64.82283
19.17558
17.55293
General
U.S. Geological Survey
USGS
Woods Hole Coastal and Marine Science Center
WHSC
Coastal and Marine Geology Program
CMGP
cores
gravity cores
Cruise ID SJHN08008
WHSC field activity 2008-008-FA
R/V Seward Johnson
XLS spreadsheet
CSV file
MSCL
multi-sensor core logger
ISO 19115 Topic Category
oceans
oceans and coastal
geoscientificInformation
General
Puerto Rico
U.S. Virgin Islands
Atlantic
Caribbean
Caribbean Sea
Puerto Rico Trench
Mona Passage
Arecibo Amphitheater
Loiza Amphitheater
Whiting Basin
Virgin Island Basin
Anegada Passage
None.
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.
Jason D. Chaytor
U.S. Geological Survey
Research Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2351
(508) 457-2310
jchaytor@usgs.gov
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Attributes were double checked that file name was in fact the correct core that the data belonged to.
The file naming convention is as follows: CCCC_mscl. CCCC stands for the core name which is ##GGC, GGC stands for giant gravity core. MSCL stands for multi-sensor core logger. There are 2 files for each core: an XLS and a CSV. The same data is in both tables, the only difference is that the CSV file marks erroneous data points with an (*) and the XLS table marks erroneous data points by putting the text in red. The core name is only marked in the file name, so take caution if renaming files.
These data represent all of the cores that were analyzed with the GEOTEK MSCL-S. 19 of the 20 2008-008-FA cores yielded usable MSCL data. There is MSCL data for core: 5, 7, 8, 9, 10, 12, 13, 17, 18, 20, 21, 22, 23, 24, 31, 33, 34, 38, and 40. The only core without MSCL data is 28GGC, this core had only about 7 cms of readable data, and therefore it was not included.
U.S. Geological Survey
2014
Core data from offshore Puerto Rico and the U.S. Virgin Islands
1.0
Open File Report
2014-1227
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2014/1227/
physical samples
GGC
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.
Each core was cut into sections on the ship after collection. The cores were then split into halves back onshore.
2008
Split_cores
Jason D. Chaytor
U.S. Geological Survey
Research Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
(508) 548-8700 x2351
(508) 457-2310
jchaytor@usgs.gov
Once back onshore physical properties were collected from the split sections of the SJ8 cores using a GEOTEK MSCL-S multi-sensor core logger. The cores were analyzed at ambient room temperature (20-25 degrees Celsius). Gamma-ray attenuation (wet-bulk density) and magnetic susceptibility were measured at 1-cm intervals for each core with a 10 second count time.
Split_cores
Brian Buczkowski
U.S. Geological Survey
Geologic Samples Curator and Data Librarian
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
(508) 548-8700 x2361
(508) 457-8700
bbuczkowski@usgs.gov
Data were compiled into individual tables for each core and exported as an XLS and a CSV.
Shannon K. Hoy
U.S. Geological Survey
Research Associate
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
(508) 548-8700 x2297
(508) 457-2310
shoy@usgs.gov
Erroneous data points caused by the beginning and end of sections were flagged by either marking the text red (XLS) or adding an (*) for the CSV table. Some lines had errors in only one parameter, these data points were flagged, but they were not considered erroneous, therefore they were not removed for corrected depth.
2013
Shannon K. Hoy
U.S. Geological Survey
Research Associate
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
(508) 548-8700 x2297
(508) 457-2310
shoy@usgs.gov
SB_Depth
Depth of core not corrected for erroneous data points caused by the beginning, middle, and end of cores (meters)
USGS
meters
Core_Sect
Core section being analyzed
USGS
1
Section 1
2
Section 2
3
Section 3
Sect_Depth
Depth in centimeters within the section, starting from the top. Restarts count at new section.
USGS
centimeters
CT
Core Thickness in centimeters
USGS
centimeters
Den1
Wet bulk density of core in g/cm3
USGS
grams per centimeter cubed
MS1
Magnetic susceptibility of core in SI
USGS
SI
Depth_corrected
Relative depth of core in centimeters corrected for erroneous data points and continuous among sections
USGS
centimeters
Although the core MSCL data 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/2014/1227/1-CoreLocations/PRcore_locations.zip. The attributes listed belong to each of the 19 core table files (both CSV and XLS).
Jason D. Chaytor
U.S. Geological Survey
Research Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
(508) 548-8700 x2351
(508) 457-2310
jchaytor@usgs.gov
Downloadable Data
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.
CSV
Excel 2010
comma separated values
The zip file (WinZip version18) contains the individual tables (both XLS and CSV) for the multi-sensor core logger data from 19 cores and the associated FGDC metadata file.
WinZip
0.265
https://pubs.usgs.gov/of/2014/1227/data/5-Multi-SensorCoreLogger/2008PRcores_mscl.zip
XLS
Excel 2010
MS Excel Format
The zip file (WinZip version18) contains the individual tables (both XLS and CSV) for the multi-sensor core logger data from 19 cores and the associated FGDC metadata file.
WinZip
0.265
https://pubs.usgs.gov/of/2014/1227/data/5-Multi-SensorCoreLogger/2008PRcores_mscl.zip
None.
The end user must be capable of uncompressing a zip file and reading an XLS or CSV table.
20140313
U.S. Geological Survey
Shannon Hoy
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
(508) 548-8700 x2297
(508) 457-2310
shoy@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time