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Summary Information for Field Activity 1995-040-FA

Area of Operations: Blake Ridge, Cape Fear, North Carolina, United States, North America, North Atlantic

Dates: October 31, 1995 to December 19, 1995

Chief scientist: Bill Dillon

   Charlie Paull - UNC; Ryo Matsumoto - U. Tokyo

Objectives: 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.

Type of Activity:

Information to be derived:

Summary: Results available in ODP Leg 164 preliminary results.

Contact: Bill Winters (bwinters@usgs.gov)

InfoBank: uses the identifier R-47-95-EC. Visit this site for more information.

Related Links: http://www-odp.tamu.edu/publications/164_SR/chap_01/chap_01.htm

Platform Info:

Publications resulting from these data

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: p. S342. (Also available at http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=sm99&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=dillon&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2fsm99%2fsm99|537|3089|T51A-08%20%20Anomalous%2c%20Nearly%20Horizontal%2c%20Seismic%20Reflection%20at%20the%20Blake%20Ridge:%20Evidence%20for%20a%20Gas%20%20Trap%20that%20C%20*%20Anton%2c%20C%20H%20Dillon%2c%20W%20P%20Lee%2c|TEXT|localhost:0|%2fdata%2fepubs%2fwais%2findexes%2fsm99%2fsm99|5522885%205525974%20%2fdata2%2fepubs%2fwais%2fdata%2fsm99%2fsm99.txt)

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. RG4003:38p.. (Also available at http://dx.doi.org/10.1029/2008RG000279)

Data Types and Locations:

 

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