Comparison of the mineral composition of the sediment found in two Mars dunefields: Ogygis Undae and Gale crater - three distinct endmembers identified

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• 作者：Heather Charles^a ; ^{hcharles@usgs.gov} ; Timothy Titus^b ; Rosalyn Hayward^b ; Christopher Edwards^b ; Caitlin Ahrens^c
• 关键词：Mars ; aeolian ; dunes ; fields ; TES ; THEMIS
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：458
• 期：Complete
• 页码：152-160
• 全文大小：2233 K
• 卷排序：458

文摘

Two dune fields on Mars are analyzed using thermal spectra, one used as a baseline. The composition of the Gale crater dune field is consistent with previous studies. The sediment composition observed at Ogygis Undae may be bimodal. A possible explanation for the bimodal distribution is sorting due to grain size.