Anyone know of methane d13C AND dD data for serpentinite springs? In particular, I am looking for both d13C AND dD for the Cedars, Oman, and Turkey. Thanks in advance!
These papers contain isotopic data for methane+hydrogen gas seeps associated with serpentinite in the Philippines:
Abrajano, T.A., Sturchio, N.C., Böhlke, J.K., Poreda, R.J., Lyon, G.L., and Stevens, C.M., 1988, Methane-hydrogen gas seeps, Zambales, Philippines: Deep or shallow origin. Chemical Geology, v. 71, p. 211-222, http://www.sciencedirect.com/science/article/pii/0009254188901167.
Abrajano, T.A., Jr., Sturchio, N.C., Kennedy, B.M., Lyon, G.L., Muehlenbachs, K., and Böhlke, J.K., 1990, Geochemistry of reduced gas related to serpentinization of the Zambales ophiolite, Philippines. Applied Geochemistry, v. 5, p. 625-630, http://www.sciencedirect.com/science/article/pii/088329279090060I.
You can find a lot of of data on C and H isotopes of methane in springs issuing from ophiolitic rocks all over the world in the papers of Giuseppe Etiope