NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars | |
Yangting LIN; Ahmed EL GORESY; Sen HU; Jianchao ZHANG; Philippe GILLET; Yuchen XU; Jialong HAO; Masaaki MIYAHARA; Ziyuan OUYANG; Eiji OHTANI | |
刊名 | Meteoritics and Planetary Science |
2013 | |
卷号 | 49期号:12页码:2201-2218 |
英文摘要 | Two petrographic settings of carbonaceous components, mainly filling open fractures and occasionally enclosed in shock-melt veins, were found in the recently fallen Tissint Martian meteorite. The presence in shock-melt veins and the deuterium enrichments (dD up to +1183&) of these components clearly indicate a pristine Martian origin. The carbonaceous components are kerogen-like, based on micro-Raman spectra and multielemental ratios, and were probably deposited from fluids in shock-induced fractures in the parent rock of Tissint. After precipitation of the organic matter, the rock experienced another severe shock event, producing the melt veins that encapsulated a part of the organic matter. The C isotopic compositions of the organic matter (d13C = 12.8 to 33.1&) are significantly lighter than Martian atmospheric CO2 and carbonate, providing a tantalizing hint for a possible biotic process. Alternatively, the organic matter could be derived from carbonaceous chondrites, as insoluble organic matter from the latter has similar chemical and isotopic compositions. The presence of organic-rich fluids that infiltrated rocks near the surface of Mars has significant implications for the study of Martian paleoenvironment and perhaps to search for possible ancient biological activities on Mars. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.gyig.ac.cn/handle/42920512-1/11149] |
专题 | 地球化学研究所_月球与行星科学研究中心 |
作者单位 | 1.Institute of Geochemistry, CAS, Guiyang, China 2.EPFL, CH-1015, Lausanne, Switzerland 3.Bayerisches Geoinstitut, Universit € €at Bayreuth, 95447 Bayreuth, Germany 4.Guangzhou Institute of Geochemistry, CAS, Guangzhou, China 5.National Astronomical Observatories, CAS, Beijing, China 6.Institute of Mineralogy, Petrology and Economic Geology, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan 7.Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
推荐引用方式 GB/T 7714 | Yangting LIN,Ahmed EL GORESY,Sen HU,et al. NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars[J]. Meteoritics and Planetary Science,2013,49(12):2201-2218. |
APA | Yangting LIN.,Ahmed EL GORESY.,Sen HU.,Jianchao ZHANG.,Philippe GILLET.,...&Shin OZAWA.(2013).NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars.Meteoritics and Planetary Science,49(12),2201-2218. |
MLA | Yangting LIN,et al."NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars".Meteoritics and Planetary Science 49.12(2013):2201-2218. |
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