Other ID: none
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Atwater Valley, Keathley Canyon, Gulf of Mexico, United States, North America, North Atlantic;
Principal Investigator(s): Deborah Hutchinson
Affiliate Investigator(s): GoM Hydrates JIP
Information Specialist(s): Brian Buczkowski
Data Type(s): Sampling: Geology, Location-Elevation: Navigation
Scientific Purpose/Goals: Cruise and project objectives include (1) calibrating geophysical estimates of location and concentration of hydrate and underlying free gas concentrations; (2) determining physical properties (e.g., strength, permeability, compressibility) of hydrate-bearing and underlying sediments in order to evaluate the relationship between gas hydrates, fluid flow, and sea floor/slope stability; (3) evaluating the sources and transport mechanisms for gas and the physical and chemical mechanisms of hydrate formation near the sea floor and at the base of the gas hydrate stability zone; (4) collecting samples of gas hydrate preserved at in situ pressures for investigation both during and post-cruise; (5) collecting and preserving pore water, gas, and sediment samples for post-cruise geochemical and microbiological investigations; and (6) developing a better basis for understanding the impact of gas hydrates on offshore petroleum drilling and production operations.
Start Date: 2005-04-15
Start Port/Location: Mobile, AL
End Date: 2005-05-21
End Port/Location: Galveston, TX
Equipment Used: Well drilling, Starfix navigation system
Information to be Derived: Samples and chemical analysis; Grain size analysis;
Summary of Activity and Data Gathered: Pressurized drilling yielded 210.06 m of core from both Atwater Valley and Keathley Canyon sites. Various geochemical and physical properties analyses were performed on the cores, as well as non-invasive scans using IR cameras, MSCL scanners and X-ray imaging.
Staff: Brian Buczkowski
Notes: Sample and Data Distribution: Scripps Institution of Oceanography (Miriam Kastner and Neal Driscoll): Porewater Geochemistry, Squeeze Cakes, and repository for split cores; Fugro McClelland Marine Geosciences, Inc. (Gary Humphry and Fabian Hippe): Whole Round samples for Geotechnical Properties; Georgia Institute of Technology (Tae Sup Yun and Guillermo Narsilio Ferrero): Whole Round Samples; Rice University (Brandon Dugan): Whole Round samples and Squeeze Cakes; USGS, Menlo Park (Tom Lorenson and Jennifer Dougherty): Free Gas Geochemistry and Head Space Samples; USGS, Woods Hole (Debbie Hutchinson and Bill Winters): Subsamples for Physical Properties and Pressurized Core samples. Original Center People field contained: Brian Buczkowski, sample curator and data management specialist.
Hutchinson, D.R., Hart, P.E., Collett, T.S., Edwards, K.M., Twichell, D.C., and Snyder, F., 2008, Geologic framework of the 2005 Keathley Canyon gas hydrate research well, northern Gulf of Mexico: Marine and Petroleum Geology, v. 25 no. 9, doi: 10.1016/j.marpetgeo.2008.01.012.
Lee, J.Y., Santamarina, J.C., and Ruppel, C., 2008, Mechanical and electromagnetic properties of northern Gulf of Mexico sediments with and without THF hydrates: Marine and Petroleum Geology, v. 25 no. 9, doi: 10.1016/j.marpetgeo.2008.01.019.
Ruppel, C., Boswell, R., and Jones, E., 2008, Scientific results from Gulf of Mexico Gas Hydrates Joint Industry Project Leg 1 drilling; introduction and overview: Marine and Petroleum Geology, v. 25 no. 9, doi: 10.1016/j.marpetgeo.2008.02.007.
Wilcox-Cline, R., and Winters, W.J, 2011, The Influence of Grain Size on the Formation of Natural Gas Hydrate [abs.]: , 2011 Fall Meeing of the American Physical Society-American Assoc. for Physics Teachers-Society of Physics Students. University of Massachusetts, Amherst, MA, November 18-19, 2011.
Winters, W.J., Dugan, Brandon, and Collett, Timothy S., 2008, Physical properties of sediments from Keathley Canyon and Atwater Valley, JIP Gulf of Mexico gas hydrate drilling program: Marine and Petroleum Geology, v. 25 no. 9, doi: 10.1016/j.marpetgeo.2008.01.018.