First discovery and formation process of authigenic siderite from gas hydrate-bearing mud volcanoes in fresh water

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First discovery and formation process of authigenic siderite from gas hydrate-bearing mud volcanoes in fresh water : Lake Baikal, eastern Siberia. / Krylov, Alexey; Khlystov, Oleg; Zemskaya, Tamara; Minami, Hirotsugu; Hachikubo, Akihiro; Nunokawa, Yutaka; Kida, Masato; Shoji, Hitoshi; Naudts, Lieven; Poort, Jeffrey; Pogodaeva, Tatiana.

в: Geophysical Research Letters, Том 35, № 5, L05405, 16.03.2008.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Krylov, Alexey ; Khlystov, Oleg ; Zemskaya, Tamara ; Minami, Hirotsugu ; Hachikubo, Akihiro ; Nunokawa, Yutaka ; Kida, Masato ; Shoji, Hitoshi ; Naudts, Lieven ; Poort, Jeffrey ; Pogodaeva, Tatiana. / First discovery and formation process of authigenic siderite from gas hydrate-bearing mud volcanoes in fresh water : Lake Baikal, eastern Siberia. в: Geophysical Research Letters. 2008 ; Том 35, № 5.

BibTeX

@article{32b227db680a493cb2d2c18891cddf68,

title = "First discovery and formation process of authigenic siderite from gas hydrate-bearing mud volcanoes in fresh water: Lake Baikal, eastern Siberia",

abstract = "We report on the first authigenic siderite (FeCO3) concretions recovered from near-bottom sediments at gas hydrate-bearing mud volcanoes in fresh water (Lake Baikal, Eastern Siberia). The carbonates appear as firm 'plate-type' formations at the Malenky mud volcano (Southern Baikal Basin) and as soft nodules at the K-2 mud volcano (Central Baikal Basin). Calcium is the main divalent component which substitutes iron in the carbonate lattice (7 to 20 mol%). The δ 13C values of the carbonates (+3.3 to +6.8‰ at Malenky, and +16.5 to +21.9‰ PDB at K-2) indicate that their formation is due to methanogenesis. The latter was most likely caused by the microbial methyl-type (acetate) fermentation that is suggested from the isotopic composition of the accompanying methane hydrates and dissolved methane. General depletion of the siderites in 18O (-11.6 to -9.9‰ at Malenky, and -13.9 to -12.3‰ PDB at K-2) is mainly inherited from the isotope composition of pore water (-15.2 to -15.4‰ SMOW) at ambient temperature (3.5°C).",

author = "Alexey Krylov and Oleg Khlystov and Tamara Zemskaya and Hirotsugu Minami and Akihiro Hachikubo and Yutaka Nunokawa and Masato Kida and Hitoshi Shoji and Lieven Naudts and Jeffrey Poort and Tatiana Pogodaeva",

year = "2008",

month = mar,

day = "16",

doi = "10.1029/2007GL032917",

language = "English",

volume = "35",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

number = "5",

}

RIS

TY - JOUR

T1 - First discovery and formation process of authigenic siderite from gas hydrate-bearing mud volcanoes in fresh water

T2 - Lake Baikal, eastern Siberia

AU - Krylov, Alexey

AU - Khlystov, Oleg

AU - Zemskaya, Tamara

AU - Minami, Hirotsugu

AU - Hachikubo, Akihiro

AU - Nunokawa, Yutaka

AU - Kida, Masato

AU - Shoji, Hitoshi

AU - Naudts, Lieven

AU - Poort, Jeffrey

AU - Pogodaeva, Tatiana

PY - 2008/3/16

Y1 - 2008/3/16

N2 - We report on the first authigenic siderite (FeCO3) concretions recovered from near-bottom sediments at gas hydrate-bearing mud volcanoes in fresh water (Lake Baikal, Eastern Siberia). The carbonates appear as firm 'plate-type' formations at the Malenky mud volcano (Southern Baikal Basin) and as soft nodules at the K-2 mud volcano (Central Baikal Basin). Calcium is the main divalent component which substitutes iron in the carbonate lattice (7 to 20 mol%). The δ 13C values of the carbonates (+3.3 to +6.8‰ at Malenky, and +16.5 to +21.9‰ PDB at K-2) indicate that their formation is due to methanogenesis. The latter was most likely caused by the microbial methyl-type (acetate) fermentation that is suggested from the isotopic composition of the accompanying methane hydrates and dissolved methane. General depletion of the siderites in 18O (-11.6 to -9.9‰ at Malenky, and -13.9 to -12.3‰ PDB at K-2) is mainly inherited from the isotope composition of pore water (-15.2 to -15.4‰ SMOW) at ambient temperature (3.5°C).

AB - We report on the first authigenic siderite (FeCO3) concretions recovered from near-bottom sediments at gas hydrate-bearing mud volcanoes in fresh water (Lake Baikal, Eastern Siberia). The carbonates appear as firm 'plate-type' formations at the Malenky mud volcano (Southern Baikal Basin) and as soft nodules at the K-2 mud volcano (Central Baikal Basin). Calcium is the main divalent component which substitutes iron in the carbonate lattice (7 to 20 mol%). The δ 13C values of the carbonates (+3.3 to +6.8‰ at Malenky, and +16.5 to +21.9‰ PDB at K-2) indicate that their formation is due to methanogenesis. The latter was most likely caused by the microbial methyl-type (acetate) fermentation that is suggested from the isotopic composition of the accompanying methane hydrates and dissolved methane. General depletion of the siderites in 18O (-11.6 to -9.9‰ at Malenky, and -13.9 to -12.3‰ PDB at K-2) is mainly inherited from the isotope composition of pore water (-15.2 to -15.4‰ SMOW) at ambient temperature (3.5°C).

UR - http://www.scopus.com/inward/record.url?scp=43549110302&partnerID=8YFLogxK

U2 - 10.1029/2007GL032917

DO - 10.1029/2007GL032917

M3 - Article

AN - SCOPUS:43549110302

VL - 35

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 5

M1 - L05405

ER -

ID: 47750554