Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1029/2019EA000720 |
| Studies of a Lacustrine-Volcanic Mars Analog Field Site With Mars-2020-Like Instruments | |
| Martin, Peter E.1; Ehlmann, Bethany L.1,2; Thomas, Nancy H.1; Wiens, Roger C.3; Hollis, Joseph J. R.2; Beegle, Luther W.2; Bhartia, Rohit2; Clegg, Samuel M.3; Blaney, Diana L.2 | |
| 通讯作者 | Martin, Peter E. |
| 来源期刊 | EARTH AND SPACE SCIENCE
 |
| EISSN | 2333-5084 |
| 出版年 | 2020 |
| 卷号 | 7期号:2 |
| 英文摘要 | On the upcoming Mars-2020 rover two remote sensing instruments, Mastcam-Z and SuperCam, and two microscopic proximity science instruments, Scanning for Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) and Planetary Instrument for X-ray Lithochemistry (PIXL), will collect compositional (mineralogy, chemistry, and organics) data essential for paleoenvironmental reconstruction. The synergies between and limitations of these instruments were evaluated via study of a Mars analog field site in the Mojave desert, using instruments approximating the data that will be returned by Mars-2020. A ground truth data set was generated for comparison to validate the results. The site consists of a succession of clay-rich mudstones of lacustrine origin, interbedded tuffs, a carbonate-silica travertine deposit, and gypsiferous mudstone strata. The major geological units were mapped successfully using simulated Mars-2020 data. Simulated Mastcam-Z data identified unit boundaries and Fe-bearing weathering products. Simulated SuperCam passive shortwave infrared and green Raman data were essential in identifying major mineralogical composition and changes in lacustrine facies at distance; this was possible even with spectrally downsampled passive IR data. Laser-induced breakdown spectroscopy and simulated PIXL data discriminated and mapped major element chemistry. Simulated PIXL revealed millimeter-scale zones enriched in zirconium, of interest for age dating. Scanning for SHERLOC-like data mapped sulfate and carbonate at submillimeter scale; silicates were identified with increased laser pulses/spot or by averaging of hundreds of spectra. Fluorescence scans detected and mapped varied classes of organics in all samples, characterized further with follow-on spatially targeted deep-UV Raman spectra. Development of dedicated organics spectral libraries is needed to aid interpretation. Given these observations, the important units in the outcrop would be sampled and cached for sample return. |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA |
| 开放获取类型 | gold, Green Accepted |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000529236000022 |
| WOS关键词 | NEAR-INFRARED SPECTRA ; CHEMCAM INSTRUMENT ; RAMAN-SPECTROSCOPY ; GALE CRATER ; GRAIN-SIZE ; ROCKS ; SUITE ; ROVER ; IDENTIFICATION ; MINERALOGY |
| WOS类目 | Astronomy & Astrophysics ; Geosciences, Multidisciplinary |
| WOS研究方向 | Astronomy & Astrophysics ; Geology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/318501 |
| 作者单位 | 1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 2.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA; 3.Los Alamos Natl Lab, Los Alamos, NM USA |
| 推荐引用方式 GB/T 7714 | Martin, Peter E.,Ehlmann, Bethany L.,Thomas, Nancy H.,et al. Studies of a Lacustrine-Volcanic Mars Analog Field Site With Mars-2020-Like Instruments[J],2020,7(2). |
| APA | Martin, Peter E..,Ehlmann, Bethany L..,Thomas, Nancy H..,Wiens, Roger C..,Hollis, Joseph J. R..,...&Blaney, Diana L..(2020).Studies of a Lacustrine-Volcanic Mars Analog Field Site With Mars-2020-Like Instruments.EARTH AND SPACE SCIENCE,7(2). |
| MLA | Martin, Peter E.,et al."Studies of a Lacustrine-Volcanic Mars Analog Field Site With Mars-2020-Like Instruments".EARTH AND SPACE SCIENCE 7.2(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
