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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1991-027-FA

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Other ID: CH-15-91

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): William Dillon

Affiliate Investigator(s): Charles Paull - UNC; Richard von Herzen - WHOI

Information Specialist(s):

Data Type(s): Environmental Data: Conductivity, Environmental Data: Temperature, Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Sampling: Geology

Scientific Purpose/Goals: Study of geological/geochemical/physical controls on gas hydrate distribution in sediments of the continental rise off North Carolina using seismics, heat flow measurements and chemistry of core samples.

Vehicle(s):

Start Port/Location: Beaufort, NC

End Port/Location: Beaufort, NC

Start Date: 1991-08-19

End Date: 1991-08-30

Equipment Used: Piston corer, Heat flow, YSI multiparameter sonde, GPS (wh), Air gun, Single channel hydrophone

Information to be Derived: Morphology;

Summary of Activity and Data Gathered: Seismic profiles: 12 (626 km); Piston cores: 12 (nearly 40 ft. long); Heat flow measurements: 3 transects (32 sites).

Staff: William Dillon, Kristen Fehlhaber, Thomas O'Brien

Affiliate Staff:
Charles Paull - co-Ch. Sci.
UNC; William Ussler - UNC; Walter Borowski - UNC; Collin Mellor - UNC; Sutton Edlick - UNC; Richard von Herzen - co-Ch. Sci.
WHOI; Alain Bonneville - WHOI
Paul Fucile - WHOI

Notes:

Location:

Blake Ridge, Cape Fear, North Carolina, United States, North America, North Atlantic;

Boundaries
North: 33.48083583 South: 32.46291079 West: -76.58508891 East: -74.6661613

Platform(s):

photo of Cape Hatteras
Cape Hatteras

Publications

Anton, C., Dillon, W.P., and Lee, M., 1999, Anomalous, nearly horizontal, seismic reflection at the Blake Ridge--Evidence for a gas trap crosses the base of gas hydrate stability [abs.]: , Eos, Transactions, American Geophysical Union, Spring Meeting.

Portals/Viewers

Documents associated with this activity

Title Survey Equipment Description
Cruise report (document not focused on specific equipment) Chief Scientist's cruise report including personnel, data collected, start and end of line positions, piston core locations, heat flow station locations, and trackmap.

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Piston corer --- Geology
Heat flow --- Temperature
YSI multiparameter sonde --- Conductivity
Dissolved Oxygen
ORP
pH
Temperature
1991-027-FA-OM-001 (SAIL Information - (text file) Data collected from a number of meterological, oceanographic and maritime devices aboard the RV CAPE HATTERAS. The scan rate for the system is user-selectable, usually 5 minutes.)
GPS (wh) --- Navigation
1991-027-FA-LN-001 (Navigation trackline plot for field activity 91027)
1991-027-FA-LN-003 (CD ROM disk of SEG-Y 1,4,11,12, NAV,LOGS, )
1991-027-FA-LN-002-03 (Cruise navigation)
1991-027-FA-LN-002-01 (Locations for piston cores and heat flow stations.)
1991-027-FA-LN-002-02 (Seismic line end locations.)
Air gun --- Air Gun / Water Gun
Single channel hydrophone --- Air Gun / Water Gun
Boomer
Bubble Gun
Sparker
Sub Bottom Profiler
1991-027-FA-SE-001 ( Collection of paper record displays of seismic data( AIR) for lines )
1991-027-FA-SE-003 (Digital tape(s) of AIRGUN LINE 1, AIRGUN LINE 1-5, AIRGUN LINE TEST,6-10, AIRGUN LINE 11-12, )
1991-027-FA-SE-002 (microfilm of )
1991-027-FA-SE-004 (CD ROM disk of SEG-Y 1,4,11,12, NAV,LOGS, )

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