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Abiogenic processes

Hopanoic acids have been found in many recent and ancient sediments (12,18). The polycyclic acids found in the bitumen of Aleksinac shale may have originated from bacterial hopanes (19), and may serve as evidence of bacterial or abiogenic oxidation processes occurring during diagenesis of organic matter in Aleksinac shale. [Pg.48]

Relatively positive 6 C(CH4) values observed in some TVZ and Taranaki Basin samples might suggest abiogenic generation of CH4 by serpentinization of ultrabasic rocks at depth (Berndt et ai, 1996). In this process relatively high H2 concentrations are required to reduce... [Pg.79]

See other pages where Abiogenic processes is mentioned: [Pg.3]    [Pg.194]    [Pg.197]    [Pg.361]    [Pg.244]    [Pg.70]    [Pg.117]    [Pg.137]    [Pg.39]    [Pg.80]    [Pg.321]    [Pg.3]    [Pg.194]    [Pg.197]    [Pg.361]    [Pg.244]    [Pg.70]    [Pg.117]    [Pg.137]    [Pg.39]    [Pg.80]    [Pg.321]    [Pg.31]    [Pg.222]    [Pg.136]    [Pg.280]    [Pg.541]    [Pg.542]    [Pg.122]    [Pg.136]    [Pg.201]    [Pg.195]    [Pg.206]    [Pg.3568]    [Pg.3931]    [Pg.492]    [Pg.224]    [Pg.26]    [Pg.406]    [Pg.259]    [Pg.730]    [Pg.408]    [Pg.332]    [Pg.56]    [Pg.117]    [Pg.172]    [Pg.172]    [Pg.181]    [Pg.462]    [Pg.908]    [Pg.1]    [Pg.351]    [Pg.82]    [Pg.38]    [Pg.243]    [Pg.245]   
See also in sourсe #XX -- [ Pg.321 ]



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Abiogenic

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