Microbial Biosignatures Associated with Iddingsite in Hadal Basalts from the Southern Mariana Trench
文献类型：期刊论文
| 作者 | Guo, Zixiao2,3; Hu, Yazhen3; Du, Qingying3; Liu, Yadong3; Qin, Guohong3; Peng, Xiaotong1
|
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2024-09-19 |
| 页码 | 10 |
| 关键词 | geobiology biosignatures iddingsite carbonaceous matter subsurface biosphere Mariana Trench Pacific Ocean |
| ISSN号 | 1000-9515 |
| DOI | 10.1111/1755-6724.15187 |
| 英文摘要 | Iddingsitization is an aqueous alteration that is known to take place in meteorites and continental basalts providing a potential habitat for microbial life. However, little is known about the exact mode by which this reaction occurs in the hadal seafloor and its implication for the deep subsurface biosphere. A comprehensive investigation of hadal basalts from the southern Mariana Trench (SMT) conducted with microscopic examinations shows that iddingsite occurs as augite- hosted veins, rims, and mineral grains formed completely in place of augite within the SMT basalts. Carbon geochemistry indicates that organic matter with homogenous delta 13C values between -27.8 parts per thousand and -27.2 parts per thousand might be biogenically accumulated in the SMT basalts. Furthermore, the close spatial relationships between carbonaceous matter (CM) and goethite in iddingsite point to microbial attachment to iddingsite minerals. Thus, iddingsitization might have fueled H2- utilizing microorganisms inhabiting the hadal oceanic crust, thereby leading to the formation of CM, as implied by oxygen isotopic compositions revealing low alteration temperatures (32-83 degrees C) favorable for microbial growth. In all, microbial biosignatures associated with iddingsite in the SMT basalts are highlighted, and these results could pave the way for deciphering the deep subsurface biosphere at hadal zones. |
| WOS关键词 | ORGANIC-COMPOUNDS ; CARBON ; OLIVINE ; ROCKS ; LIFE ; RIDGE ; FRACTIONATION ; ISOTOPES ; ORIGIN ; WATER |
| 资助项目 | National Natural Science Foundation of China[42206045] ; National Natural Science Foundation of China[42202197] ; Natural Science Foundation of Hebei Province[D2020205007] ; Science and Technology Project of Hebei Education Department[QN2023167] ; Science Foundation of Hebei Normal University[L2020B24] ; Science Foundation of Hebei Normal University[L2021B21] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001315672800001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Science and Technology Project of Hebei Education Department ; Science Foundation of Hebei Normal University |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/11359]  |
| 专题 | 专家咨询委员会 |
| 通讯作者 | Liu, Yadong; Peng, Xiaotong |
| 作者单位 | 1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Hainan, Peoples R China 2.UCL, Dept Earth Sci, London WC1E 6BT, England 3.Hebei Normal Univ, Sch Geog Sci, Hebei Key Lab Environm Change & Ecol Construct, Shijiazhuang 050024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Zixiao,Hu, Yazhen,Du, Qingying,et al. Microbial Biosignatures Associated with Iddingsite in Hadal Basalts from the Southern Mariana Trench[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2024:10. |
| APA | Guo, Zixiao,Hu, Yazhen,Du, Qingying,Liu, Yadong,Qin, Guohong,&Peng, Xiaotong.(2024).Microbial Biosignatures Associated with Iddingsite in Hadal Basalts from the Southern Mariana Trench.ACTA GEOLOGICA SINICA-ENGLISH EDITION,10. |
| MLA | Guo, Zixiao,et al."Microbial Biosignatures Associated with Iddingsite in Hadal Basalts from the Southern Mariana Trench".ACTA GEOLOGICA SINICA-ENGLISH EDITION (2024):10. |
入库方式： OAI收割
来源：深海科学与工程研究所
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