Geology and Geochemistry of Some Queensland Tertiary Oil Shales

Lindner, A. W.; Petroleum, Pacific

doi:10.1021/bk-1983-0230.ch006

Cited by 9 publications

(2 citation statements)

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“…Published data from clastic lacustrine sequences appear very similar to the African lakes results, principally as a result of allochthonous input. Elemental data from the Tertiary of Queensland, Australia (Linder 1983) and from the Shahejie Formation, Bohai basin, China (Zhou 1981) suggest a Type II affinity, as do the 'Rock-Eval' data from the Fushun and Maoming regions of China (Nuttall et al 1983). Similar values have been observed in the lacustrine units of the Mesozoic basins of the U.S. east coast, Cretaceous sequences in Brazil (Mello et al 1984) and West Africa and the Tertiary of the Great Basin (Poole & Claypool 1984;Palmer 1984).…”

Section: Discussionmentioning

confidence: 99%

Clastic and carbonate lacustrine systems: an organic geochemical comparison (Green River Formation and East African lake sediments)

Katz¹

1988

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S U M MARY: Source rock properties were determined on samples obtained from three modern African lakes--Tanganyika, Kivu and Edward--and on thermally immature material from Eocene Lake Uinta of Utah and Colorado (Green River Formation). The modern rift lakes represent largely clastic lacustrine systems, whereas Lake Uinta is a carbonate-dominated system. The sediments from both systems exhibit a wide range of organic enrichment: up to ~ 13 wt.~o TOC in the clastic lake samples and sometimes greater than 30 wt.~ TOC in the carbonate-dominated system. Total hydrocarbon generation potentials, as determined by 'Rock-Eval' pyrolyses, also indicate higher yields in the carbonate system (up to ~ 200 mg HC g-1 rock) as compared to the clastic systems (up to -,~ 90 mg HC g-1 rock). Differences in hydrocarbon yield are greater than can be explained by the organic content. They appear to be the combined result of mineral matrix effects and kerogen character. Elemental and visual analyses of isolated kerogen also support the idea of differences in organic character. The kerogen from the Green River Formation was used to define the Type I reference curve. The kerogen isolated from the clastic lakes appears intermediate between the Type I and Type II reference curves and contains varying and, in some cases, very significant proportions of Type III and/or residual (inert) organic material. In both cases, the principal product will be a high-wax crude oil. The primary differences in organic enrichment and character appear to be related to the relative quantity of allochthonous sedimentary material, both organic and inorganic.

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Section: Discussionmentioning

confidence: 99%

Clastic and carbonate lacustrine systems: an organic geochemical comparison (Green River Formation and East African lake sediments)

Katz¹

1988

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“…Studies have shown that chlorination of algae ( 6), algal biomass (7), and extracellular products produced by algae (7)(8)(9)(10) all produce THMs. Although algae vary considerably in their metabolic activity and in the organic products of their metabolism, proteins generally represent the largest single fraction of organic components of many algae (11)(12)(13) and are especially important extracellular products of blue-green algae- (14). For instance, approximately 60-70% of the dry weight of the algae Monodus subterraneus and Spirulina maxima is proteinaceous.…”

Section: Introductionmentioning

confidence: 99%