globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116597
论文题名:
Water on Mars: Insights from apatite in regolith breccia Northwest Africa 7034
作者: Davidson J.; Wadhwa M.; Hervig R.L.; Stephant A.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 552
语种: 英语
中文关键词: apatite ; crustal fluid exchange ; H-isotopes ; martian crust ; NWA 7034 ; regolith breccia
英文关键词: Apatite ; Hydrogen ; Isotopes ; Rocks ; Atmospheric process ; Crustal fluids ; Crustal materials ; Hydrogen isotope ; Impact process ; Martian atmospheres ; Source material ; Water on Mars ; Reservoirs (water) ; apatite ; breccia ; crustal structure ; hydrogen isotope ; isotopic composition ; Mars ; meteorite ; regolith
英文摘要: Determining the source of planetary water from the hydrogen isotope compositions of crustal samples is complicated by the overprinting of isotopically diverse source material by geologic and atmospheric processes. As Mars has no plate tectonics, crustal material, which may have isotopically exchanged with the martian atmosphere, is not recycled into the mantle keeping the water reservoirs in the mantle and atmosphere mostly isolated, buffered by the crust. As the only known martian samples that are regolith breccias with a composition representative of the average crust of Mars, Northwest Africa (NWA) 7034 and its paired stones provide an important opportunity to investigate the water content and hydrogen isotope composition of the martian crust. In particular, apatites in distinct clasts as well as the brecciated matrix of NWA 7034 record a complex history including magmatic and impact processes, and exchange with crustal fluids. © 2020 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164935
Appears in Collections:气候变化与战略

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作者单位: Center for Meteorite Studies, Arizona State University, 781 East Terrace Road, Tempe, AZ 85287-6004, United States; School of Earth and Space Exploration, Arizona State University, 781 East Terrace Road, Tempe, AZ 85287-6004, United States

Recommended Citation:
Davidson J.,Wadhwa M.,Hervig R.L.,et al. Water on Mars: Insights from apatite in regolith breccia Northwest Africa 7034[J]. Earth and Planetary Science Letters,2020-01-01,552
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