NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars

	NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars
	Lin, Yangting 1; El Goresy, Ahmed 2; Hu, Sen 1; Zhang, Jianchao 1; Gillet, Philippe 3; Xu, Yuchen 1; Hao, Jialong 1; Miyahara, Masaaki 4; Ouyang, Ziyuan5 ; Ohtani, Eiji 4
刊名	METEORITICS & PLANETARY SCIENCE
	2014-12-01
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 (delta D up to +1183 parts per thousand) 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 (delta C-13 = -12.8 to -33.1 parts per thousand) 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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000345762800006
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6455]
专题	国家天文台_月球与深空探测研究部
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.Univ Bayreuth, Bayer Geoinst, D-95447 Bayreuth, Germany 3.Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland 4.Tohoku Univ, Inst Mineral Petrol & Econ Geol, Grad Sch Sci, Sendai, Miyagi 9808578, Japan 5.Chinese Acad Sci, Inst Geochem, Guiyang, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Lin, Yangting,El Goresy, Ahmed,Hu, Sen,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 & PLANETARY SCIENCE,2014,49(12):2201-2218.
APA	Lin, Yangting.,El Goresy, Ahmed.,Hu, Sen.,Zhang, Jianchao.,Gillet, Philippe.,...&Ozawa, Shin.(2014).NanoSIMS analysis of organic carbon from the Tissint Martian meteorite: Evidence for the past existence of subsurface organic-bearing fluids on Mars.METEORITICS & PLANETARY SCIENCE,49(12),2201-2218.
MLA	Lin, Yangting,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 & PLANETARY SCIENCE 49.12(2014):2201-2218.