| DOI: | 10.1002/2013GL058909
|
| 论文题名: | The timing of alluvial activity in Gale crater, Mars |
| 作者: | Grant J.A.; Wilson S.A.; Mangold N.; Calef III F.; Grotzinger J.P.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-10371
|
| EISSN: | 1944-10102
|
| 出版年: | 2014
|
| 卷: | 41, 期:4 | | 起始页码: | 1142
|
| 结束页码: | 1148
|
| 语种: | 英语
|
| 英文关键词: | alluvial fan
; craters
; Gale crater
; Hesperian
; Mars
|
| Scopus关键词: | Geophysics
; Alluvial fans
; craters
; Gale crater
; Hesperian
; Mars
; Earth sciences
; alluvial fan
; astronomy
; data set
; mapping method
; Mars
; Canada
; Northwest Territories
; Yellowknife
; Hesperia
|
| 英文摘要: | The Curiosity rover's discovery of rocks preserving evidence of past habitable conditions in Gale crater highlights the importance of constraining the timing of responsible depositional settings to understand the astrobiological implications for Mars. Crater statistics and mapping reveal the bulk of the alluvial deposits in Gale, including those interrogated by Curiosity, were likely emplaced during the Hesperian, thereby implying that habitable conditions persisted after the Noachian. Crater counting data sets and upper Peace Vallis fan morphology also suggest a possible younger period of fluvial activation that deposited ~10-20 m of sediments on the upper fan after emplacement of the main body of the fan. If validated, water associated with later alluvial activity may have contributed to secondary diagenetic features in Yellowknife Bay. Key Points The bulk of alluvial deposits in Gale were likely emplaced during the Hesperian Habitable conditions persisted in Gale crater after the Noachian Limited evidence for possible younger fluvial activation on Peace Vallis fan ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893869827&doi=10.1002%2f2013GL058909&partnerID=40&md5=14630971885faad3992a7ec137afd6e6
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7635
|
| Appears in Collections: | 气候减缓与适应
|
|
There are no files associated with this item.
|
|
作者单位: | Center for Earth and Planetary Studies, National Air and Space Museum, Smithsonian Institution, Washington DC, United States
|
| Recommended Citation: | |
Grant J.A.,Wilson S.A.,Mangold N.,et al. The timing of alluvial activity in Gale crater, Mars[J]. Geophysical Research Letters,2014-01-01,41(4).
|
|
|