Molecular and carbon isotopic variability of hydrocarbon gases from mud volcanos in the Gulf of Cadiz, NE Atlantic.

A. Stadnitskaia; M.K. Ivanov; V. Blinova; R. Kreulen; T.C.E. van Weering

doi:10.1016/j.marpetgeo.2005.11.001

Molecular and carbon isotopic variability of hydrocarbon gases from mud volcanos in the Gulf of Cadiz, NE Atlantic.

A. Stadnitskaia, M.K. Ivanov, V. Blinova, R. Kreulen, T.C.E. van Weering

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Investigations of molecular and carbon isotopic variability of hydrocarbon gases from methane through butanes (pentanes) have been performed on six mud volcanoes from two fluid venting provinces located in the Gulf of Cadiz, NE Atlantic. The main aims were to define the basic gas types, to describe their geochemical characteristics in relationship to their sources, and to determine the secondary effects due to migration/mixing and microbial alteration. Hydrocarbon gas data reveal two groups of gases. Despite the different maturation characteristics, both gas groups are allochthonous to the erupted mud breccia and represent a complex of redeposited, secondary migrated, mixed, and microbially altered hydrocarbons. It may possibly imply the presence of hydrocarbon accumulations in the deep subsurface of the Gulf of Cadiz. © 2005 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	281-296
Journal	Marine and Petroleum Geology
Volume	23
DOIs	https://doi.org/10.1016/j.marpetgeo.2005.11.001
Publication status	Published - 2006

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title = "Molecular and carbon isotopic variability of hydrocarbon gases from mud volcanos in the Gulf of Cadiz, NE Atlantic.",

abstract = "Investigations of molecular and carbon isotopic variability of hydrocarbon gases from methane through butanes (pentanes) have been performed on six mud volcanoes from two fluid venting provinces located in the Gulf of Cadiz, NE Atlantic. The main aims were to define the basic gas types, to describe their geochemical characteristics in relationship to their sources, and to determine the secondary effects due to migration/mixing and microbial alteration. Hydrocarbon gas data reveal two groups of gases. Despite the different maturation characteristics, both gas groups are allochthonous to the erupted mud breccia and represent a complex of redeposited, secondary migrated, mixed, and microbially altered hydrocarbons. It may possibly imply the presence of hydrocarbon accumulations in the deep subsurface of the Gulf of Cadiz. {\textcopyright} 2005 Elsevier Ltd. All rights reserved.",

author = "A. Stadnitskaia and M.K. Ivanov and V. Blinova and R. Kreulen and {van Weering}, T.C.E.",

year = "2006",

doi = "10.1016/j.marpetgeo.2005.11.001",

language = "English",

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pages = "281--296",

journal = "Marine and Petroleum Geology",

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T1 - Molecular and carbon isotopic variability of hydrocarbon gases from mud volcanos in the Gulf of Cadiz, NE Atlantic.

AU - Stadnitskaia, A.

AU - Ivanov, M.K.

AU - Blinova, V.

AU - Kreulen, R.

AU - van Weering, T.C.E.

PY - 2006

Y1 - 2006

N2 - Investigations of molecular and carbon isotopic variability of hydrocarbon gases from methane through butanes (pentanes) have been performed on six mud volcanoes from two fluid venting provinces located in the Gulf of Cadiz, NE Atlantic. The main aims were to define the basic gas types, to describe their geochemical characteristics in relationship to their sources, and to determine the secondary effects due to migration/mixing and microbial alteration. Hydrocarbon gas data reveal two groups of gases. Despite the different maturation characteristics, both gas groups are allochthonous to the erupted mud breccia and represent a complex of redeposited, secondary migrated, mixed, and microbially altered hydrocarbons. It may possibly imply the presence of hydrocarbon accumulations in the deep subsurface of the Gulf of Cadiz. © 2005 Elsevier Ltd. All rights reserved.

AB - Investigations of molecular and carbon isotopic variability of hydrocarbon gases from methane through butanes (pentanes) have been performed on six mud volcanoes from two fluid venting provinces located in the Gulf of Cadiz, NE Atlantic. The main aims were to define the basic gas types, to describe their geochemical characteristics in relationship to their sources, and to determine the secondary effects due to migration/mixing and microbial alteration. Hydrocarbon gas data reveal two groups of gases. Despite the different maturation characteristics, both gas groups are allochthonous to the erupted mud breccia and represent a complex of redeposited, secondary migrated, mixed, and microbially altered hydrocarbons. It may possibly imply the presence of hydrocarbon accumulations in the deep subsurface of the Gulf of Cadiz. © 2005 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.marpetgeo.2005.11.001

DO - 10.1016/j.marpetgeo.2005.11.001

M3 - Article

SN - 0264-8172

VL - 23

SP - 281

EP - 296

JO - Marine and Petroleum Geology

JF - Marine and Petroleum Geology

ER -

Molecular and carbon isotopic variability of hydrocarbon gases from mud volcanos in the Gulf of Cadiz, NE Atlantic.

Abstract

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