DOI: 10.1002/2017JE005450
Scopus记录号: 2-s2.0-85045255221
论文题名: Constructional Volcanic Edifices on Mercury: Candidates and Hypotheses of Formation
作者: Wright J. ; Rothery D.A. ; Balme M.R. ; Conway S.J.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期: 4 起始页码: 952
结束页码: 971
语种: 英语
英文关键词: edifice
; impacts
; Mercury
; tectonism
; volcanism
; volcano
英文摘要: Mercury, a planet with a predominantly volcanic crust, has perplexingly few, if any, constructional volcanic edifices, despite their common occurrence on other solar system bodies with volcanic histories. Using image and topographical data from the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, we describe two small (<15-km diameter) prominences with shallow summit depressions associated with volcanically flooded impact features. We offer both volcanic and impact-related interpretations for their formation, and then compare these landforms with volcanic features on Earth and the Moon. Though we cannot definitively conclude that these landforms are volcanic, the paucity of constructional volcanic edifices on Mercury is intriguing in itself. We suggest that this lack is because volcanic eruptions with sufficiently low eruption volumes, rates, and flow lengths, suitable for edifice construction, were highly spatiotemporally restricted during Mercury's geological history. We suggest that volcanic edifices may preferentially occur in association with late-stage, postimpact effusive volcanic deposits. The European Space Agency/Japan Aerospace Exploration Agency BepiColombo mission to Mercury will be able to investigate further our candidate volcanic edifices; search for other, as-yet unrecognized edifices beneath the detection limits of MESSENGER data; and test our hypothesis that edifice construction is favored by late-stage, low-volume effusive eruptions. ©2018. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114124
Appears in Collections: 气候减缓与适应
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作者单位: School of Physical Sciences, Open University, Milton Keynes, United Kingdom; CNRS, Laboratoire de Planétologie et Géodynamique, Université de Nantes, Nantes, France
Recommended Citation:
Wright J.,Rothery D.A.,Balme M.R.,et al. Constructional Volcanic Edifices on Mercury: Candidates and Hypotheses of Formation[J]. Journal of Geophysical Research: Planets,2018-01-01,123(4)