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DOI10.1002/2014JE004707
Near-infrared spectroscopy of lacustrine sediments in the Great Salt Lake Desert: An analog study for Martian paleolake basins
Lynch, Kennda L.1; Horgan, Briony H.2; Munakata-Marr, Junko1; Hanley, Jennifer3; Schneider, Robin J.4; Rey, Kevin A.5; Spear, John R.1; Jackson, W. Andrew6; Ritter, Scott M.5
通讯作者Lynch, Kennda L.
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
ISSN2169-9097
EISSN2169-9100
出版年2015
卷号120期号:3页码:599-623
英文摘要

The identification and characterization of aqueous minerals within ancient lacustrine environments on Mars are a high priority for determining the past habitability of the red planet. Terrestrial analog studies are useful both for understanding the mineralogy of lacustrine sediments, how the mineralogy varies with location in a lacustrine environment, and for validating the use of certain techniques such as visible-near-infrared (VNIR) spectroscopy. In this study, sediments from the Pilot Valley paleolake basin of the Great Salt Lake desert were characterized using VNIR as an analog for Martian paleolake basins. The spectra and subsequent interpretations were then compared to mineralogical characterization by ground truth methods, including X-ray diffraction, automated scanning electron microscopy, and several geochemical analysis techniques. In general, there is good agreement between VNIR and ground truth methods on the major classes of minerals present in the lake sediments and VNIR spectra can also easily discriminate between clay-dominated and salt-dominated lacustrine terrains within the paleolake basin. However, detection of more detailed mineralogy is difficult with VNIR spectra alone as some minerals can dominate the spectra even at very low abundances. At this site, the VNIR spectra are dominated by absorption bands that are most consistent with gypsum and smectites, though the ground truth methods reveal more diverse mineral assemblages that include a variety of sulfates, primary and secondary phyllosilicates, carbonates, and chlorides. This study provides insight into the limitations regarding the use of VNIR in characterizing complex mineral assemblages inherent in lacustrine settings.


英文关键词Mars paleolakes lacustrine sediments evaporites spectroscopy phyllosilicates
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000352855100014
WOS关键词CHLORIDE-BEARING MATERIALS ; SPECTRAL REFLECTANCE ; DEATH-VALLEY ; CARBONATE MINERALS ; EVAPORITE DEPOSITS ; PYROXENE MIXTURES ; MARS ; SURFACE ; IDENTIFICATION ; BONNEVILLE
WOS类目Geochemistry & Geophysics
WOS研究方向Geochemistry & Geophysics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/188716
作者单位1.Colorado Sch Mines, Dept Civil & Environm Engn, Golden, CO 80401 USA;
2.Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA;
3.SW Res Inst, Boulder, CO USA;
4.Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA;
5.Brigham Young Univ, Dept Geol Sci, Provo, UT 84602 USA;
6.Texas Tech Univ, Dept Civil Engn, Lubbock, TX 79409 USA
推荐引用方式
GB/T 7714
Lynch, Kennda L.,Horgan, Briony H.,Munakata-Marr, Junko,et al. Near-infrared spectroscopy of lacustrine sediments in the Great Salt Lake Desert: An analog study for Martian paleolake basins[J],2015,120(3):599-623.
APA Lynch, Kennda L..,Horgan, Briony H..,Munakata-Marr, Junko.,Hanley, Jennifer.,Schneider, Robin J..,...&Ritter, Scott M..(2015).Near-infrared spectroscopy of lacustrine sediments in the Great Salt Lake Desert: An analog study for Martian paleolake basins.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,120(3),599-623.
MLA Lynch, Kennda L.,et al."Near-infrared spectroscopy of lacustrine sediments in the Great Salt Lake Desert: An analog study for Martian paleolake basins".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 120.3(2015):599-623.
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