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• W1518184791 abstract "A previous study interpreted extremely 13 C‐depleted excursions of planktonic and benthic foraminifera in last glacial sediments (17,500 to 25,400 cal years B.P.) of the core retrieved from off Shimokita Peninsula and off Hokkaido, Japan, as evidence for periodic releases of methane, arising from the dissociation of methane hydrate. To better understand the formation process of the 13 C‐depleted excursions, we conducted high‐resolution natural radiocarbon measurements and biogeochemical analyses. We found highly depleted 13 C excursions ranging from −10.2‰ to −1.6‰ and −6.8‰ to −1.6‰ in planktonic and benthic foraminifera, respectively. Most of the foraminiferal tests in these horizons were brown, most likely as a result of postdepositional alteration, reflecting the formation of authigenic carbonate on the surface of tests. These alterations were also supported by high levels of Mg‐calcite and the acid‐leaching test for anomalous foraminifera. To evaluate the carbon sources in the altered foraminifera tests, we quantified the relative contributions of 14 C‐free methane‐derived carbon sources to the formation of authigenic carbonates in foraminifera with depleted 13 C excursions using a coupled mass balance isotopic model ( 14 C/C and 13 C/ 12 C). The radiocarbon ages of both planktonic and benthic 13 C‐depleted foraminifera were approximately 600 to 2000 years older than those of normal tests from nearby horizons. The relative contributions of authigenic carbonates derived from the methane oxidizing process reached to ∼22 wt% for planktonic foraminifera and ∼15 wt% for benthic foraminifera. The δ 13 C values of methane calculated from the mass balance model were between −29‰ and −68‰ for planktonic foraminifera and between −40‰ and −108‰ for benthic foraminifera, consistent with δ 13 C values reported for thermogenic and abiogenic methane in global methane hydrate reservoirs. These data consistently suggest that methane‐related drastic environmental change occurred in the horizons that included δ 13 C anomalies. This study provides important information for interpreting geological records of the methane hydrate instability associated with climate." @default.
• W1518184791 created "2016-06-24" @default.
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• W1518184791 date "2008-04-01" @default.
• W1518184791 modified "2023-09-27" @default.
• W1518184791 title "Radiocarbon-based carbon source quantification of anomalous isotopic foraminifera in last glacial sediments in the western North Pacific" @default.
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• W1518184791 cites W1529766254 @default.
• W1518184791 cites W1531433086 @default.
• W1518184791 cites W1587103052 @default.
• W1518184791 cites W1634682841 @default.
• W1518184791 cites W1710313745 @default.
• W1518184791 cites W1883049440 @default.
• W1518184791 cites W1927648166 @default.
• W1518184791 cites W1965949949 @default.
• W1518184791 cites W1967072856 @default.
• W1518184791 cites W1968883486 @default.
• W1518184791 cites W1973596864 @default.
• W1518184791 cites W1975257256 @default.
• W1518184791 cites W1977279711 @default.
• W1518184791 cites W1979195198 @default.
• W1518184791 cites W1984610159 @default.
• W1518184791 cites W1987028436 @default.
• W1518184791 cites W1989218371 @default.
• W1518184791 cites W1990860463 @default.
• W1518184791 cites W1991487937 @default.
• W1518184791 cites W1995015275 @default.
• W1518184791 cites W1998218018 @default.
• W1518184791 cites W2000103641 @default.
• W1518184791 cites W2003648426 @default.
• W1518184791 cites W2008680648 @default.
• W1518184791 cites W2010007345 @default.
• W1518184791 cites W2020661576 @default.
• W1518184791 cites W2022981724 @default.
• W1518184791 cites W2027259272 @default.
• W1518184791 cites W2032854853 @default.
• W1518184791 cites W2038442416 @default.
• W1518184791 cites W2039311538 @default.
• W1518184791 cites W2041635560 @default.
• W1518184791 cites W2043110792 @default.
• W1518184791 cites W2043959425 @default.
• W1518184791 cites W2049422448 @default.
• W1518184791 cites W2052736701 @default.
• W1518184791 cites W2055119561 @default.
• W1518184791 cites W2055303152 @default.
• W1518184791 cites W2064118420 @default.
• W1518184791 cites W2067594137 @default.
• W1518184791 cites W2077708531 @default.
• W1518184791 cites W2082317586 @default.
• W1518184791 cites W2083114431 @default.
• W1518184791 cites W2083266142 @default.
• W1518184791 cites W2090726911 @default.
• W1518184791 cites W2094362919 @default.
• W1518184791 cites W2094591409 @default.
• W1518184791 cites W2094953080 @default.
• W1518184791 cites W2109486701 @default.
• W1518184791 cites W2113362448 @default.
• W1518184791 cites W2114232764 @default.
• W1518184791 cites W2118392962 @default.
• W1518184791 cites W2120537950 @default.
• W1518184791 cites W2124605432 @default.
• W1518184791 cites W2126767348 @default.
• W1518184791 cites W2127471727 @default.
• W1518184791 cites W2129502339 @default.
• W1518184791 cites W2131350560 @default.
• W1518184791 cites W2138169388 @default.
• W1518184791 cites W2148653368 @default.
• W1518184791 cites W2149539240 @default.
• W1518184791 cites W2152368443 @default.
• W1518184791 cites W2152780077 @default.
• W1518184791 cites W2154523481 @default.
• W1518184791 cites W2168237454 @default.
• W1518184791 cites W2298803304 @default.
• W1518184791 cites W2317206062 @default.
• W1518184791 cites W2487201253 @default.
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• W1518184791 doi "https://doi.org/10.1029/2006gc001558" @default.
• W1518184791 hasPublicationYear "2008" @default.
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