Newly Discovered Ring-Moat Dome Structures in the Lunar Maria: Possible   Origins and Implications

doi:10.1002/2017GL074416

CORC > 北京大学 > 地球与空间科学学院

	Newly Discovered Ring-Moat Dome Structures in the Lunar Maria: Possible Origins and Implications
	Zhang, Feng ; Head, James W. ; Basilevsky, Alexander T. ; Bugiolacchi, Roberto ; Komatsu, Goro ; Wilson, Lionel ; Fa, Wenzhe ; Zhu, Meng-Hua
刊名	GEOPHYSICAL RESEARCH LETTERS
	2017
关键词	the Moon mare volcanism morphology surface process SOURCE DEPTHS LAVA FLOWS MOON EMPLACEMENT INSIGHTS ERUPTION GANYMEDE AGES STRATIGRAPHY GENERATION
DOI	10.1002/2017GL074416
英文摘要	We report on a newly discovered morphological feature on the lunar surface, here named Ring-Moat Dome Structure (RMDS). These low domes (a few meters to similar to 20 m height with slopes <5 degrees) are typically surrounded by narrow annular depressions or moats. We mapped about 2,600 RMDSs in the lunar maria with diameters ranging from tens to hundreds of meters. Four candidate hypotheses for their origin involving volcanism are considered. We currently favor a mechanism for the formation of the RMDS related to modification of the initial lava flows through inflated flow squeeze-ups and/or extrusion of magmatic foams below a cooling lava flow surface. These newly discovered features provide new insights into the nature of emplacement of lunar lava flows, suggesting that in the waning stages of a dike emplacement event, magmatic foams can be produced, extrude to the surface as the dike closes, and break through the upper lava flow thermal boundary layer (crust) to form foam mounds and surrounding moats.; Science and Technology Development Fund of Macau [075/2014/A2, 039/2013/A2]; National Natural Science Foundation of China [41590851]; Russian Science Foundation [14-22-00197]; SCI(E); ARTICLE; 18; 9216-9224; 44
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/484834]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhang, Feng,Head, James W.,Basilevsky, Alexander T.,et al. Newly Discovered Ring-Moat Dome Structures in the Lunar Maria: Possible Origins and Implications[J]. GEOPHYSICAL RESEARCH LETTERS,2017.
APA	Zhang, Feng.,Head, James W..,Basilevsky, Alexander T..,Bugiolacchi, Roberto.,Komatsu, Goro.,...&Zhu, Meng-Hua.(2017).Newly Discovered Ring-Moat Dome Structures in the Lunar Maria: Possible Origins and Implications.GEOPHYSICAL RESEARCH LETTERS.
MLA	Zhang, Feng,et al."Newly Discovered Ring-Moat Dome Structures in the Lunar Maria: Possible Origins and Implications".GEOPHYSICAL RESEARCH LETTERS (2017).