Past endolithic life in metamorphic ocean crust
文献类型：期刊论文
| 作者 | Peng, X.5; Guo, Z.4,5; Du, M.5; Czaja, A. D.3; Papineau, D.1,2; Chen, S.5; Xu, H.5; Li, J.5; Ta, K.5; Bai, S.5 |
| 刊名 | GEOCHEMICAL PERSPECTIVES LETTERS
 |
| 出版日期 | 2020-06-26 |
| 卷号 | 14页码:14-19 |
| ISSN号 | 2410-339X |
| DOI | 10.7185/geochemlet.2017 |
| 英文摘要 | The known deep subsurface biosphere on Earth persists in diversified habitats, including deep within igneous rocks of the oceanic crust. Here, we extend the range of the deep subsurface biosphere to metamorphic ocean crust of a subduction zone. We report fossilised life in zeolite fades rocks, which formed by low grade metamorphism, from the southern Mariana trench. Dense carbonaceous spheroids, filaments, and Frutexites-ble structures are preserved in these rocks, which are enriched in organic carbon but depleted in C-13. The distinct difference in the GDGT-0 vs. crenarchaeol and the branched vs. isoprenoid tetraether values between the inner and outer portions of these rocks indicate the in situ production of organic carbon. We demonstrate that these structures may result from the past activity of potential chemolithoautotrophs within the metamorphic crust, as implied by their morphologies, Raman spectra, carbon isotopes, and biomarker signatures, as well as the Fe oxidation state within whole rocks. We propose that fluid-rock reactions at temperatures within the tolerance of life during low grade metamorphism contributed to microbial subsistence within the biotope. The low grade metamorphic ocean crust of the subduction zone likely represents Earth's deepest, and one of its largest, microbial ecosystems, which may potentially influence the deep carbon cycle. |
| WOS关键词 | MEMBRANE-LIPIDS ; SEA |
| 资助项目 | National key research and development plan of China[2018YFC0309902] ; National key research and development plan of China[2018YFC0309802] ; National key research and development plan of China[2016YFC0302301] ; Doctoral Fund of Hebei Normal University[L2020B24] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | EUROPEAN ASSOC GEOCHEMISTRY |
| WOS记录号 | WOS:000544339900001 |
| 资助机构 | National key research and development plan of China ; Doctoral Fund of Hebei Normal University |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/7743]  |
| 专题 | 专家咨询委员会 深海科学研究部_深海地质与地球化学研究室 深海科学研究部_深海生物学研究室_海洋病毒与分子生物学研究组 |
| 通讯作者 | Guo, Z.; Guo, Zixiao |
| 作者单位 | 1.UCL, Ctr Planetary Sci, 17-19 Gordon St, London WC1H 0AH, England 2.UCL, London Ctr Nanotechnol, Dept Earth Sci, 17-19 Gordon St, London WC1H 0AH, England 3.Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA 4.Hebei Normal Univ, Coll Resource & Environm Sci, Shijiazhuang 050024, Hebei, Peoples R China 5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, X.,Guo, Z.,Du, M.,et al. Past endolithic life in metamorphic ocean crust[J]. GEOCHEMICAL PERSPECTIVES LETTERS,2020,14:14-19. |
| APA | Peng, X..,Guo, Z..,Du, M..,Czaja, A. D..,Papineau, D..,...&Chen, Shun.(2020).Past endolithic life in metamorphic ocean crust.GEOCHEMICAL PERSPECTIVES LETTERS,14,14-19. |
| MLA | Peng, X.,et al."Past endolithic life in metamorphic ocean crust".GEOCHEMICAL PERSPECTIVES LETTERS 14(2020):14-19. |
入库方式： OAI收割
来源：深海科学与工程研究所
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