Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B35230.1 |
Potential aeolian deposition of intra-crater layering: A case study of Henry crater, Mars | |
Day, Mackenzie D.1; Catling, David C.2 | |
2020-03-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN |
ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2020 |
卷号 | 132期号:3-4页码:608-616 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Layered deposits occur on Mars in a wide variety of settings and morphologies, including inside craters as large mounds. Many origins have been proposed for these intracrater layered deposits, but recent work has suggested the possibility of deposition by ancient aeolian dunes. Distinguishing dune deposits requires identifying cross-strata which may not be resolvable even with the highest spatial resolution imaging of Mars. In this work, we employ an alternative method and attempt to eliminate the possibility of aeolian deposition by comparing martian layer geometries to the angles and thicknesses of aeolian sets on Earth. Layering in Henry crater falls within the expected bounds for aeolian strata, and if ancient dunes deposited these layers, then the sets record the passage of dunes with 10-100 m spacing that were generally migrating toward the center of the crater. The Henry crater mound comprises similar to 8000 km(3) of sediment, and if all layers reflect dune deposition, we estimate mound deposition would then take at least similar to 0.5 m.y. As a whole, similar to 20,000 km(3) of sediment are preserved in intra-crater layered deposits in Arabia Terra. Results from this case study of Henry crater suggest that at least some of this volume may be from aeolian dunes, in which case intra-crater layered mounds may host an untapped record of very ancient martian aeolian activity. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000518916800008 |
WOS关键词 | SEDIMENTARY-ROCK RECORD ; SANDS DUNE FIELD ; GALE CRATER ; BOUNDING SURFACES ; MERIDIANI-PLANUM ; ARABIA TERRA ; ORIGIN ; WIND ; STRATIGRAPHY ; PRESERVATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279431 |
专题 | 地球科学 |
作者单位 | 1.Univ Calif Los Angels, Dept Earth Planetary & Space Sci, 595 Charles Young Dr E, Los Angeles, CA 90095 USA; 2.Univ Washington, Dept Earth & Space Sci, 4000 15th Ave NE,Johnson Hall Rm 070,Box 351310, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Day, Mackenzie D.,Catling, David C.. Potential aeolian deposition of intra-crater layering: A case study of Henry crater, Mars[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2020,132(3-4):608-616. |
APA | Day, Mackenzie D.,&Catling, David C..(2020).Potential aeolian deposition of intra-crater layering: A case study of Henry crater, Mars.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,132(3-4),608-616. |
MLA | Day, Mackenzie D.,et al."Potential aeolian deposition of intra-crater layering: A case study of Henry crater, Mars".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 132.3-4(2020):608-616. |
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