Abundance retrieval of hydrous minerals around the Mars Science Laboratory landing site in Gale crater, Mars

被引：6

作者：

Lin, Honglei ^{[1
,2
]}

Zhang, Xia ^{[1
]}

Shuai, Tong ^{[1
,2
]}

Zhang, Lifu ^{[1
]}

Sun, Yanli ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

PLANETARY AND SPACE SCIENCE | 2016年 / 121卷

关键词：

Mars surface; Hydrous mineral; Spectroscopy; Spectral unmixing; Hyperspectral remote sensing; CRISM;

D O I：

10.1016/j.pss.2015.12.007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The detection of hydrous minerals on Mars is of great importance for revealing the early water environment as well as possible biotic activity. However, few studies focus on abundance retrieval of hydrous minerals for some difficulties. In this paper, we studied the area around the Mars Science Laboratory (MSL) landing site, to identify hydrous minerals and retrieve their abundance. Firstly, the distribution of hydrous minerals was extracted using their hydration features. Then, a sparse unmixing algorithm was applied along with the CRISM spectral library to retrieve the abundance of hydrous minerals in this area. As a result, seven hydrous minerals were retrieved, i.e. actinolite, montmorillonite, saponite, jarosite, halloysite, szomolnokite and magnesite and, the total concentration of all hydrous minerals was as high as 40 vol% near the lower reaches of Mount Sharp. Our results were consistent with results from related research and the in-situ analysis of the MSL rover Curiosity. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：76 / 82

页数：7

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