Zobrazeno 1 - 7
of 7
pro vyhledávání: '"John C. Pinkston"'
Autor:
W. L. Du Frane, Ryan Lu, Steven Constable, Laura A. Stern, Jeffery J. Roberts, John C. Pinkston
Publikováno v:
Journal of Geophysical Research: Solid Earth. 124:10877-10892
Publikováno v:
Marine and Petroleum Geology. 28:394-403
Using cryogenic scanning electron microscopy (CSEM), powder X-ray diffraction, and gas chromatography methods, we investigated the physical states, grain characteristics, gas composition, and methane isotopic composition of two gas-hydrate-bearing se
Autor:
William B. Durham, M. B. Helgerud, Amos Nur, Laura A. Stern, Stephen H. Kirby, John C. Pinkston, William F. Waite
Publikováno v:
Annals of the New York Academy of Sciences. 912:1003-1010
Simultaneous measurements of compressional and shear wave speeds through polycrystalline methane hydrate have been made. Methane hydrate, grown directly in a wave speed measurement chamber, was uniaxially compacted to a final porosity below 2%. At 27
Autor:
Stephen H. Kirby, Gregor Rehder, Edward T. Peltzer, William B. Durham, John C. Pinkston, Peter G. Brewer, Laura A. Stern
Publikováno v:
Geochimica et Cosmochimica Acta. 68:285-292
To help constrain models involving the chemical stability and lifetime of gas clathrate hydrates exposed at the seafloor, dissolution rates of pure methane and carbon-dioxide hydrates were measured directly on the seafloor within the nominal pressure
Autor:
John C. Pinkston, Jeffery J. Roberts, Laura A. Stern, Steven Constable, Karen Weitemeyer, Wyatt L. Du Frane
Publikováno v:
Geophysical Research Letters. 38
[1] Electromagnetic (EM) remote-sensing techniques are demonstrated to be sensitive to gas hydrate concentration and distribution and complement other resource assessment techniques, particularly seismic methods. To fully utilize EM results requires
Publikováno v:
Geophysical Research Letters. 29:82-1
[1] Using von Herzen and Maxwell's needle probe method, we measured thermal conductivity in four porous mixtures of quartz sand and methane gas hydrate, with hydrate composing 0, 33, 67 and 100% of the solid volume. Thermal conductivities were measur
Publikováno v:
Journal of Geophysical Research. 95:19257
The basal slip systems of biotite and their mechanical expressions have been investigated by shortening single crystals oriented to maximize and minimize shear stresses on (001). Samples loaded at 45° to (001) exhibit gentle external rotations assoc