Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091651 |
Periodic Bedrock Ridges at the ExoMars 2022 landing site: Evidence for a Changing Wind Regime | |
S. Silvestro; A. Pacifici; F. Salese; D.A. Vaz; A. Neesemann; D. Tirsch; C.I. Popa; M. Pajola; G. Franzese; G. Mongelluzzo; A.C. Ruggeri; F. Cozzolino; C. Porto; F. Esposito | |
2021-01-12 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Wind‐formed features are abundant in Oxia Planum (Mars), the landing site of the 2022 ExoMars mission, which shows geological evidence for a past wet environment. Studies of aeolian bedforms at the landing site were focused on assessing the risk for rover trafficability, however their potential in recording additional climatic fluctuations has not been explored. Here we show that the landing site experienced multiple climatic changes in the Amazonian, which are recorded by an intriguing set of ridges that we interpret as Periodic Bedrock Ridges (PBRs). Clues for a PBR origin result from ridge regularity, defect terminations and the presence of preserved megaripples detaching from the PBRs. PBR orientation differs from superimposed transverse aeolian ridges pointing toward a major change in wind regime. Our results provide constrains on PBR formation mechanisms and offer indications on paleo winds that will be crucial for understanding the landing site geology. This article is protected by copyright. All rights reserved. |
领域 | 气候变化 |
URL | 查看原文 |
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/311388 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. Silvestro,A. Pacifici,F. Salese,et al. Periodic Bedrock Ridges at the ExoMars 2022 landing site: Evidence for a Changing Wind Regime[J]. Geophysical Research Letters,2021. |
APA | S. Silvestro.,A. Pacifici.,F. Salese.,D.A. Vaz.,A. Neesemann.,...&F. Esposito.(2021).Periodic Bedrock Ridges at the ExoMars 2022 landing site: Evidence for a Changing Wind Regime.Geophysical Research Letters. |
MLA | S. Silvestro,et al."Periodic Bedrock Ridges at the ExoMars 2022 landing site: Evidence for a Changing Wind Regime".Geophysical Research Letters (2021). |
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