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Methane then seeped into the burrows and AOM occurred in its deeper parts, promoted by a supply of seawater via callianassid activity, resulting in an increase in the concentration of hydrogen sulfide ions. Thiobacteria flourished in the shallower parts of the burrows, which were enriched in dissolved oxygen, and provided a source of food for the callianassids. In the deeper parts of the burrows, acicular aragonite precipitated around suspended carbonate nuclei and sank to the bottoms of the burrows, forming geopetal-like carbonate structures. 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"千葉県君津市川谷地域に露出する中部更新統柿ノ木台層から産出する冷湧水化石群集: その時空分布と共産する自生炭酸塩"}, {"subitem_title": "Cold-seep-dependent fossil assemblages in the middle Pleistocene Kakinokidai Formation at Kawayatsu, Kimitsu City, Japan", "subitem_title_language": "en"}]}, "item_type_id": "4", "owner": "18", "path": ["2148"], "permalink_uri": "https://doi.org/10.24517/00067132", "pubdate": {"attribute_name": "公開日", "attribute_value": "2022-09-29"}, "publish_date": "2022-09-29", "publish_status": "0", "recid": "60887", "relation": {}, "relation_version_is_last": true, "title": ["千葉県君津市川谷地域に露出する中部更新統柿ノ木台層から産出する冷湧水化石群集: その時空分布と共産する自生炭酸塩"], "weko_shared_id": -1}
千葉県君津市川谷地域に露出する中部更新統柿ノ木台層から産出する冷湧水化石群集: その時空分布と共産する自生炭酸塩
https://doi.org/10.24517/00067132
https://doi.org/10.24517/000671327ca39f61-79e4-48a0-99da-94ad0287d24c
名前 / ファイル | ライセンス | アクション |
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FR-PR-SATO-K-125-655.pdf (12.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-09-29 | |||||
タイトル | ||||||
タイトル | 千葉県君津市川谷地域に露出する中部更新統柿ノ木台層から産出する冷湧水化石群集: その時空分布と共産する自生炭酸塩 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Cold-seep-dependent fossil assemblages in the middle Pleistocene Kakinokidai Formation at Kawayatsu, Kimitsu City, Japan | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
ID登録 | ||||||
ID登録 | 10.24517/00067132 | |||||
ID登録タイプ | JaLC | |||||
著者 |
間嶋, 隆一
× 間嶋, 隆一× 越智, 眞弓× 三浦, 美佐× 人見, 真紀子× 齋藤, 猛× 並木, 勇樹× 大塚, 悠佑× 清水, 秀倫× 野崎, 篤× 宇都宮, 正志× 楠, 稚枝× 佐藤, 圭× 河潟, 俊吾× 和仁, 良二× 中村, 栄子× 坂井, 三郎× 和田, 秀樹× 北里, 洋 |
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著者別表示 |
Majima, Ryuichi
× Majima, Ryuichi× Ochi, Mayumi× Miura, Misa× Hitomi, Makiko× Saito, Takeshi× Namiki, Yuuki× Ohtsuka, Yusuke× Shimizu, Hidetomo× Nozaki, Atsushi× Utsunomiya, Masayuki× Kusu, Chie× Sato, Kei× Kawagata, Shungo× Wani, Ryoji× Nakamura, Eiko× Sakai, Saburo× Wada, Hideki× Kitazato, Hiroshi |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学国際基幹教育院 GS教育系 | |||||
書誌情報 |
地質学雑誌 en : The Journal of the Geological Society of Japan 巻 125, 号 9, p. 655-683, 発行日 2019-09-15 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0016-7630 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-9963 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00141768 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.5575/geosoc.2019.0016 | |||||
出版者 | ||||||
出版者 | 日本地質学会 = The Geological Society of Japan | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 冷湧水性群集が房総半島の中部更新統柿ノ木台層の陸棚相から産出する.群集は,化学合成二枚貝類から排他的になり,著しく13Cに枯渇した自生炭酸塩と共産することから,AOM(嫌気的メタン酸化)に依存していたと考えられる.自生炭酸塩は巣穴壁面と巣穴周囲の堆積物中に沈殿し,巣穴からスナモグリ類の爪化石と糞化石が産出することから,これらはスナモグリ類の巣穴であると考えられる.スナモグリ類はメタン生成帯まで巣穴を堀り,海水を巣穴深部へ供給し,AOMを活性化させることによって巣穴中の硫化水素イオン濃度を上昇させた.溶存酸素濃度が高い巣穴浅部では,硫黄酸化菌が繁茂し,スナモグリ類の食糧となった.巣穴深部では,浮遊する生物源炭酸塩などを核とした針状アラゴナイトが重力方向に沈下して炭酸塩ジオペタル状構造を形成し,巣穴周囲の堆積物中では,リン酸イオン濃度の上昇により高Mgカルサイトが,また硫酸イオンの枯渇によりドロマイトが沈殿した. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Cold-seep-dependent molluscan assemblages occur in the outer-shelf facies of the middle Pleistocene Kakinokidai Formation of the Kazusa Group, a forearc basin-fill sequence on the Pacific side of central Japan, in strata corresponding to the interval 707.6-667.0 ka. The assemblages consist exclusively of chemosymbiotic bivalves (lucinids, thyasirids, and solemyids) and are associated with 13C-depleted authigenic carbonates (δ13C = −61.60‰ to −10.96‰ VPDB), which suggest that their main carbon source was anaerobic oxidation of methane (AOM). Authigenic carbonate precipitates are common on burrow walls (mainly acicular aragonite) and the surrounding sediments (mainly micritic high-Mg calcite and dolomite). The burrows are cylindrical, 1.5-3.0 cm in diameter, and >1 m long. Callianassid claws and the trace fossil Palaxius (probable callianassid fecal pellets) in the burrow carbonates suggest that the burrows were produced by sediment-dwelling callianassid decapods. \nWe propose the following formation mechanism of burrows and their related authigenic carbonates. Firstly, callianassids produced deep burrows, penetrating the AOM zone and reaching the methanogenic zone. Methane then seeped into the burrows and AOM occurred in its deeper parts, promoted by a supply of seawater via callianassid activity, resulting in an increase in the concentration of hydrogen sulfide ions. Thiobacteria flourished in the shallower parts of the burrows, which were enriched in dissolved oxygen, and provided a source of food for the callianassids. In the deeper parts of the burrows, acicular aragonite precipitated around suspended carbonate nuclei and sank to the bottoms of the burrows, forming geopetal-like carbonate structures. In the surrounding sediment, high-Mg calcite precipitated in response to an increase in the concentration of phosphate ions (due to the decomposition of organic matter), and dolomite precipitated in response to decreasing concentrations of sulfate ions (caused by active AOM). |
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権利 | ||||||
権利情報 | Copyright © 日本地質学会 The Geological Society of Japan | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.jstage.jst.go.jp/browse/geosoc/-char/ja/ | |||||
関連名称 | https://www.jstage.jst.go.jp/browse/geosoc/-char/ja/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.geosociety.jp/publication/content0002.html | |||||
関連名称 | http://www.geosociety.jp/publication/content0002.html | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.geosociety.jp | |||||
関連名称 | http://www.geosociety.jp |