Other ID: SEDCO/BP 471
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Principal Investigator(s): William Dillon
Affiliate Investigator(s): Charlie Paull - UNC; Ryo Matsumoto - U. Tokyo
Information Specialist(s): William Winters
Data Type(s): Environmental Data: Gas Hydrates, Location-Elevation: Navigation
Scientific Purpose/Goals: Recover and measure properties of gas hydrates. Transport, under in situ pressure and temperature conditions, intact gas hydrate samples to Woods Hole for testing in GHASTLI. Quantify amount of in situ gas hydrates (GH), lateral extent; assess interaction between BSR and amount/location of GH; investigate sediment fabric near GH; assess physical property changes in sediment associated with formation/decomposition of GH; determine origin of gas in GH, GH influence on authigenic carbonates; measure chemical and isotopic composition, hydration number and crystal structure of GH gas, influence of GH on fluid migration, GH dissociation on slope instability, relationship between Carolina Rise diapirs, GH and origin of diapirs.
Start Port/Location: Halifax, Nova Scotia, Canada
End Port/Location: Miami, FL
Start Date: 1995-10-31
End Date: 1995-12-19
Equipment Used: Gas hydrates sampler, Magnavox satellite positioning system
Information to be Derived:
Summary of Activity and Data Gathered: Results available in ODP Leg 164 preliminary results.
Staff: James S. Booth, David Mason, William Winters
Notes: Original Center People field contained: Bill Winters, onboard; Dave Mason, to help drive samples back from Miami and to handle mechanical requirements of transporting samples under in situ P-T conditions; Jim Booth, possible driver.
Blake Ridge, Cape Fear, North Carolina, United States, North America, North Atlantic;
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, v. 80 no. 17-supplement.
Waite, W.F., Santamarina, J.C., Cortes, D.D., Dugan, B., Espinoza, D.N., Germaine, J., Jang, J., Jung, J.W., Kneafsey, T.J., Shin, H., Soga, K., Winters, W.J., and Yun, T-S., 2009, Physical properties of hydrate-bearing sediments: Reviews of Geophysics, v. 47 no. RG4003, 38 p., doi: 10.1029/2008RG000279.