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Line 57: − An unusual biomarker is 28, 30-bisnorhopane, which can be extremely abundant in those few samples where it is present. The figure below shows gas chromatograms of two extracts of immature source rock candidates in southern California (Monterey Formation, Santa Maria basin). They contain bisnorhopane as well as a series of monoaromatic steroid hydrocarbons. These two biomarker types, together with the low pristane–phytane ratios shown here, are characteristic of Monterey oils. These distinctive characteristics provide a fairly confident correlation to Monterey oils, despite the very low maturity of the source rocks. − + + +
Gas chromatography: data obtained (view source)
Revision as of 14:37, 4 February 2014
, 14:37, 4 February 2014→Bisnorhopane
==Bisnorhopane==
==Bisnorhopane==
[[file:oiloil-and-oilsource-rock-correlations_fig8-11.png|thumb|{{figure number|8-11}}From Curiale et al.;<ref name=ch08r13>Curiale, J., A., Cameron, D., Davis, D., V., 1985, Biological marker distribution and significance in oils and rocks of the Monterey Formation, California: Geochimica et Cosmochimica Acta, vol. 49, p. 271–288., 10., 1016/0016-7037(85)90210-8</ref> reprinted with permission from Elsevier.]]
[[file:oiloil-and-oilsource-rock-correlations_fig8-11.png|left|thumb|{{figure number|7}}From Curiale et al.;<ref name=ch08r13>Curiale, J., A., Cameron, D., Davis, D., V., 1985, Biological marker distribution and significance in oils and rocks of the Monterey Formation, California: Geochimica et Cosmochimica Acta, vol. 49, p. 271–288., 10., 1016/0016-7037(85)90210-8</ref> reprinted with permission from Elsevier.]]
An unusual biomarker is 28, 30-bisnorhopane, which can be extremely abundant in those few samples where it is present. [[:file:oiloil-and-oilsource-rock-correlations_fig8-11.png|Figure 7]] shows gas chromatograms of two extracts of immature source rock candidates in southern California (Monterey Formation, Santa Maria basin). They contain bisnorhopane as well as a series of monoaromatic steroid hydrocarbons. These two biomarker types, together with the low pristane–phytane ratios shown here, are characteristic of Monterey oils. These distinctive characteristics provide a fairly confident correlation to Monterey oils, despite the very low maturity of the source rocks.
==Other minor components==
==Other minor components==