Assessing micrometer-scale contamination from organic materials in serpentinite analysis | |
Nan, Jingbo2,3; Zhu, Kechen2; Ren, Jieji1; Yao, Weiqi2; Peng, Xiaotong3 | |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT |
2023-12-10 | |
卷号 | 903页码:10 |
关键词 | Serpentinites Serpentinization Organic contamination Deep carbon cycle |
ISSN号 | 0048-9697 |
DOI | 10.1016/j.scitotenv.2023.166609 |
通讯作者 | Yao, Weiqi ; Peng, Xiaotong |
英文摘要 | Serpentinization of peridotite provides a significant source of energy for the subseafloor biosphere and abiotic organic synthesis. The presence of diverse micrometer-scale organic matter in serpentinites offers insights into deep carbon cycling and the origin of life on Earth. It is critical to maintain stringent lab protocols in analyzing serpentinite samples, limiting the contact with organic materials that could contaminate serpentinites and cause misinterpretations. However, the extent to which these organic materials (e.g. latex gloves or nylon polishing disc) can introduce contamination remains unclear. Here we subject serpentinite samples from the Yap Trench in the western Pacific Ocean to multi-stage cutting and polishing procedures prior to analysis. Our findings from electron microscopy reveal that micrometer-scale organic matter in serpentinites is randomly distributed either on the sample surface or within Cr-spinel fractures. Further analysis using Raman spectroscopy indicates that the organic matter contains several hydrogen bonding moieties, similar to those found in the latex gloves or nylon polishing disc used during the treatment of serpentinite samples. Our results suggest that the detected organic matter is likely due to contamination from the organic materials involved during sample processing. Thus, future studies need to carefully assess micrometer-scale organic contamination and limit the use of organic materials when analyzing organic compounds hosted in serpentinites, not only on Earth but also on other rocky planets. |
资助项目 | National Natural Science Foundation of China[42106069] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[223120] ; China Postdoctoral Science Foundation[2023M731507] |
WOS关键词 | ZONE ; CARBON ; HYDROCARBONS ; MARS |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:001077537400001 |
资助机构 | National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; China Postdoctoral Science Foundation |
内容类型 | 期刊论文 |
源URL | [http://ir.idsse.ac.cn/handle/183446/10531] |
专题 | 深海科学研究部_深海地质与地球化学研究室 |
通讯作者 | Yao, Weiqi; Peng, Xiaotong |
作者单位 | 1.Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai, Peoples R China 2.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China |
推荐引用方式 GB/T 7714 | Nan, Jingbo,Zhu, Kechen,Ren, Jieji,et al. Assessing micrometer-scale contamination from organic materials in serpentinite analysis[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,903:10. |
APA | Nan, Jingbo,Zhu, Kechen,Ren, Jieji,Yao, Weiqi,&Peng, Xiaotong.(2023).Assessing micrometer-scale contamination from organic materials in serpentinite analysis.SCIENCE OF THE TOTAL ENVIRONMENT,903,10. |
MLA | Nan, Jingbo,et al."Assessing micrometer-scale contamination from organic materials in serpentinite analysis".SCIENCE OF THE TOTAL ENVIRONMENT 903(2023):10. |
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