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ID 08008
Also Known As J-1-08-PR
08008
Abstract United States Geological Survey, Woods Hole, Massachusetts. Chief Scientists: Jason Chaytor, Uri ten Brink. Coring data (Giant Gravity Corer, 3.5 kHz echosounder) of field activity 08008 (J-1-08-PR) in Mona Canyon, Puerto Rico Trench, Puerto Rico, the Virgin Islands, Virgin Islands Basin, and Whiting Basin, United States, northeast Caribbean, North Atlantic from 03/16/2008 to 03/24/2008
Organization United States Geological Survey, Woods Hole, Massachusetts
Project/Theme Chronology of Slope Failures and Seismites around
Chief Scientist Jason Chaytor
Uri ten Brink
Activity Type Coring
Platform Seward Johnson
Area of Operation Mona Canyon, Puerto Rico Trench, Puerto Rico, the Virgin Islands, Virgin Islands Basin, and Whiting Basin, United States, northeast Caribbean, North Atlantic, Puerto Rico
Bounding Coordinates
20.75000
-68.75000     -63.25000
16.85000
Ports LEAVE San Juan, Puerto Rico
ARRIVE San Juan, Puerto Rico
Dates 03/16/2008 (JD 076) to 03/24/2008 (JD 084)
Analog Materials No analog holdings.
Information Specialist
Jason Chaytor
Crew
Jason Chaytor Chief Scientist
Uri ten Brink Chief Scientist
Jason Chaytor
Uri ten Brink
Matthew Arsenault
Sandy Baldwin
Brian Buczkowski
Mike Casso
Claudia Flores
Kate McMullen
Emily Himmelstoss
Jim Broda WHOI, Coring Technician
George Gunther
Equipment Used
Giant Gravity Corer
3.5 kHz echosounder
Purpose
The objective of this coring cruise is to determine the age
of several significant slope failures and seismite layers around
Puerto Rico in an effort to constrain the temporal distribution of
large slope failures and earthquakes.  Large landslide and
earthquake events in close proximity to Puerto Rico and the U.S.
Virgin Islands are believed to have triggered numerous tsunami,
which have caused significant damage to coastal communities in the
region.  By better constraining the temporal occurrence of such
large tsunami source mechanisms, we hope to gain a better
understanding of the recurrence interval and size of future
landslides, thereby providing valuable input into tsunami hazard
models for the region.  This project is a collaborative effort
between WHOI and the USGS Woods Hole Science Center.  In order to do
this, we aim to collect 30-40 cores from offshore Puerto Rico (Mona
Canyon, north slope and Puerto Rico trench, and the Virgin Island
and Whiting Basins) that intersect landslide or seismite deposits so
as to be able to date the penultimate and potentially older
landslide and/or earthquake events.
Information to be Derived
Samples and Chemical Analysis;sediment stratigraphy;radiocarbon ages
Summary
During the 9 days at sea, 40 gravity cores were attempted in
basins to the northwest of Puerto Rico, south of US Virgin Islands,
within the Puerto Rico trench, and the south and north slopes
offshore Puerto Rico. Over 24 m of core was recovered from 21
successful deployments, in addition to numerous smaller samples
recovered from the corer when only partial sediment penetration
occurred.
Notes
Navigation technique: DGPS.
9 days at sea. 40 stations occupied. The objective of this coring cruise is to determine the age of several significant slope failures and seismite layers around Puerto Rico in an effort to constrain the temporal distribution of large slope failures and earthquakes. Large landslide and earthquake events in close proximity to Puerto Rico and the U.S. Virgin Islands are believed to have triggered numerous tsunami, which have caused significant damage to coastal communities in the region. By better constraining the temporal occurrence of such large tsunami source mechanisms, we hope to gain a better understanding of the recurrence interval and size of future landslides, thereby providing valuable input into tsunami hazard models for the region. This project is a collaborative effort between WHOI and the USGS Woods Hole Science Center. In order to do this, we aim to collect 30-40 cores from offshore Puerto Rico (Mona Canyon, north slope and Puerto Rico trench, and the Virgin Island and Whiting Basins) that intersect landslide or seismite deposits so as to be able to date the penultimate and potentially older landslide and/or earthquake events.
Funding
USGS
Publications
Chaytor, Jason, and ten Brink, Uri, 2008, Gravity Coring Offshore Puerto Rico
and the U.S. Virgin Islands to Investigate the Timing of Submarine Landslides
and Large Earthquakes, USGS Sound Waves, July 2008, available on line at:
http://soundwaves.usgs.gov/2008/07/fieldwork3.html
Got Help? For 08008, we would appreciate any information on -- analog materials, contract, days at sea, dive count, kms of navigation, national plan, NGDC Info, owner, project number, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata         WHSC
Metadata data     txt  data  FAQ  xml data
Navigation data nav      
Times   050.times      

08008 location map of where navigation 

equipment operated

 
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Page Last Modified: Tue Oct 29 12:25:30 PDT 2013  (chd)