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Geochemistry of reduced gas related to serpentinization of the Zambales ophiolite, Philippines

January 1, 1990

Methane-hydrogen gas seeps with mantle-like C and noble gas isotopic characteristics issue from partially serpentinized ultramafic rocks in the Zambales ophiolite, Philippines. New measurements of noble gas and 14C isotope abundances, rock/mixed-volatile equilibrium calculations, and previous chemical and isotopic data suggest that these reduced gases are products of periodotite hydration. The gas seeps are produced in rock-dominated zones of serpentinization, and similar gases may be ubiquitous in ultramafic terranes undergoing serpentinization.

Publication Year 1990
Title Geochemistry of reduced gas related to serpentinization of the Zambales ophiolite, Philippines
DOI 10.1016/0883-2927(90)90060-I
Authors T.A. Abrajano, N.C. Sturchio, B. M. Kennedy, G.L. Lyon, K. Muehlenbachs, J.K. Böhlke
Publication Type Article
Publication Subtype Journal Article
Series Title Applied Geochemistry
Index ID 70016004
Record Source USGS Publications Warehouse