Other
Scientific paper
Apr 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50..507c&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 50, Issue 4, pp.507-515
Other
2
Scientific paper
The saturated hydrocarbons from the oil seepage at Waiotapu in New Zealand were examined by GC and GCMS techniques of molecular fingerprinting. The petroleum was characterised by a high ratio of phytane / nC 18 (2.37) and low ratios of pr / ph (0.64) and saturates/aromatics (0.60). This study revealed that the oil was derived from terrigenous organic matter and it had neither migrated from its source nor suffered biodegradation. The source rocks were deposited under anoxic conditions and these rocks lay within Pleistocene sediments which were immature with respect to oil generation. The location of the source rocks within a geothermal field had accelerated the generation of petroleum since the source rocks would have been too young and shallow to generate petroleum in the absence of geothermal energy.
Cook Richard A.
Czochanska Zofia
Sheppard Carolyn M.
Weston Roderick J.
Woolhouse Anthony D.
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