Nature of Migrabitumen and Their Relation to Regional Thermal Maturity, Ouachita Mountains, Oklahoma

Cardott, Brian J.; Ruble, Tim E.; Suneson, Neil H.

doi:10.1080/00908319308909026

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…The presence of grahamite deposits in the Ouachita area, and the degree of thermal maturity of the region, support the view that the Page impsonite originated from thermallyaltered grahamite formed from an asphaltene-rich asphalt (Cardott,199 1). The grahamiteimpsonite conversion process, however, has not been documented for the corresponding samples (Cardott et al, 1993).…”

Section: Oxygenic Kerogenization Of Petroleum Asphaltene: Origin Of Imentioning

confidence: 97%

“…Asphaltite (grahamite) and asphaltic pyrobitumen (impsonite) deposits are found in a number of localities in the Ouachita Mountains (Oklahoma, USA); the best known occurrences are in the Page and Windingstair locations, in southern Le Flore County (Cardott et al, 1993), where the deposits occur in pure form as veins or fissure fillings. Grahamite occurs at the Sardis location (northern Pushamataha County).…”

Section: Oxygenic Kerogenization Of Petroleum Asphaltene: Origin Of Imentioning

confidence: 99%

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Oxygenic Kerogenization of Asphaltenes From the Dead Sea Basin (Israel)

Premović

Zlatković

Premović

et al. 1998

Journal of Petroleum Geology

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A kerogen‐like material was generated during a laboratory heating experiment with asphaltenes in the presence of O2. The asphaltenes had been extracted from a floating block of Dead Sea asphalt, and heated at 100 ‐ 200 d̀C for 1–12 days. This oxygenic kerogenization reaction follows first‐order kinetics. The half‐life (t1/2) of the asphaltenes (i.e. the time in which 50% of the asphaltenes had been converted to artificial kerogen) varied from 2,300 days at Od̀C, to 2 days at 100 d̀C. Similar results were obtained with asphaltenes which had been extracted from a number of bitumen‐bearing rocks in the Dead Sea area (from the Amiaz, Ein Boqeq, Nebi Mussa and Ef'e boreholes), and also from sandstones from the Heimar and IPRG boreholes which were impregnated with heavy or asphaltic crudes. These and other results suggest that low‐temperature (≤100d̀C) oxygenic kerogenization of Dead Sea asphaltenes (with or without the mediation of meteoric waters) may be a pathway for the formation of kerogen. Asphaltenes extracted from other bituminous rocks — the La Luna limestone (U. Cretaceous, Venezuela); the Serpiano marl (M. Triassic, Switzerland); the Messel shale (Tertiary, Germany); and the Aleksinac shale (Tertiary, Yugoslavia) — underwent laboratory kerogenization in a similar fashion to the Dead Sea materials. This suggests that oxygenic kerogenization may be widespread in porous and fractured, bitumen‐bearing rocks.

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Section: Oxygenic Kerogenization Of Petroleum Asphaltene: Origin Of Imentioning

confidence: 97%

Section: Oxygenic Kerogenization Of Petroleum Asphaltene: Origin Of Imentioning

confidence: 99%

Oxygenic Kerogenization of Asphaltenes From the Dead Sea Basin (Israel)

Premović

Zlatković

Premović

et al. 1998

Journal of Petroleum Geology

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“…Microprobe analysis is carried out for reworked vitrinite grains and two other vein types of pyrobitumen. Other authors also mentioned the detection limit problem (Belin 1994;Cardott 2007). Pyrite growing over the reworked vitrinite appears in globular framboids or sometimes polyframboids was found only in the first group of samples.…”

Section: Microprobe Analysis For Reworked Vitrinite and Ore Mineralsmentioning

confidence: 99%

Preliminary analysis on roles of metal–organic compounds in the formation of invisible gold

et al. 2021

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The paper comprises new analytical data on the nature and occurrence of gold in solid pyrobitumen, closely associated with the main gold-bearing sulfide arsenic ores of the Bakyrchik gold deposit (Kazakhstan), related to post-collisional magmatic-hydrothermal origin. Gold mineralization of the deposit occurs mainly in the form of an “invisible” type of gold in the structures of arsenian pyrite and arsenopyrite, and the form of gold-organic compounds of pyrobitumen in carbonaceous-terrigenous sequences of Carboniferous formation. Microscopic and electron microscopic analysis, Raman and FT-Infrared analysis, mineralogical and three-step sequential extraction analysis (NH2OH·HCl, H2O2, HNO3 + HCl) has been carried out using 9 ore samples (from 3 different types of ores) for a comprehensive study of pyrobitumen and sulfide arsenic ores focusing mainly on organic matter. The sequentially extracted precious metal content of pyrobitumen reaches up to 7 ppm gold and other metals like Ag 4 ppm, Pt 31 ppb, and Pd 26 ppb, forming metal–organic compounds, while arsenic sulfide minerals incorporate 11 ppm gold, 39 ppm Ag, 0.49 ppm Pt. The enrichment of gold associating with organic matter and sulfide ore minerals was confirmed in this study. Organic matter was active in the migration of gold and the capture of gold by pyrobitumen. Moreover, the reductive organic matter agent released gold, most likely for the sulfide arsenic ore minerals. Pyrobitumen was a decisive factor in the concentration, transportation, and preservation of gold in the deposit.

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