Sources and mechanisms of formation of gaseous hydrocarbons in sedimentary rocks

Галимов, Э. М.

doi:10.1016/0009-2541(88)90107-6

Cited by 218 publications

(82 citation statements)

References 7 publications

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“…high maturity product coming from the decomposition of carbonaceous deposits (Tissot and Welte, 1984;Landes, 1967). But giant gas deposits believed to be thermal are found at shallow depths (Galimov, 1988) and oil exists deep in the earth (Price, 1993), exceptions that are not easily explained by conventional ideas. If, however, oil decomposition is not a significant source of natural gas (Mango, 1991(Mango, , 1987 and metal catalysis is, contradictions like these would not exist.…”

Section: Discussionmentioning

confidence: 99%

Transition metal catalysis in the generation of petroleum and natural gas. Final report, September 1, 1992--October 31, 1995

Mango¹

1997

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Section: Discussionmentioning

confidence: 99%

Transition metal catalysis in the generation of petroleum and natural gas. Final report, September 1, 1992--October 31, 1995

Mango¹

1997

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Transition metal catalysis in the generation of petroleum and natural gas. Final report

Mango¹

1997

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“…The origin of CH 4 in gas discharges from sedimentary environments is indeed commonly related to microbial metabolic and biosynthetic activity and/or thermogenic degradation of pre-existing organic matter (e.g. Schoell, 1980Schoell, , 1988Whiticar et al, 1986;Galimov, 1988;Welhan, 1988). At a first approximation, the d 13 C-CH 4 values can provide insights to distinguish these two possible CH 4 sources (e.g.…”

Section: Origin Of Gasesmentioning

confidence: 99%

A combined geochemical and isotopic study of the fluids discharged from the Montecatini thermal system (NW Tuscany, Italy)

Capecchiacci

Tassi

Vaselli

et al. 2015

Applied Geochemistry

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a b s t r a c tThe thermo-mineral fluids discharges of Montecatini Terme (Northern Apennines, Tuscany, Italy) have been exploited since the Roman times and despite the fact that this thermal complex is one of the biggest in Europe, the most recent geochemical investigations were published almost 40 years ago. To fill this gap, in this paper a detailed geochemical and isotopic investigation on the main thermal springs and wells from the Montecatini thermal system (MTS) is presented.The chemical and isotopic features of the Montecatini waters suggested that they are mainly controlled by water-rock interaction processes between meteoric water, permeating at depth from the surrounding reliefs (up to 800 m a.s.l.), and the Triassic evaporites (Burano Formation) belonging to the Tuscan sedimentary series. The local stratigraphic and tectonic framework favors an efficient recharge of the hydrothermal reservoir by the meteoric precipitation from a large catchment area and this aspect plays a fundamental role for the longevity of the Montecatini thermal spas, notwithstanding the huge amount of thermal water exploited. The C-TDIC values were lower than those expected for a mantle/thermometamorphic CO 2 source. This can be explained by: (i) isotopic fractionation occurring during calcite precipitation and/or (ii) mixing with biogenically derived gases, occurring at relatively shallow depth.

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Sources and mechanisms of formation of gaseous hydrocarbons in sedimentary rocks

Cited by 218 publications

References 7 publications

Transition metal catalysis in the generation of petroleum and natural gas. Final report, September 1, 1992--October 31, 1995

Transition metal catalysis in the generation of petroleum and natural gas. Final report, September 1, 1992--October 31, 1995

Transition metal catalysis in the generation of petroleum and natural gas. Final report

A combined geochemical and isotopic study of the fluids discharged from the Montecatini thermal system (NW Tuscany, Italy)

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