Density and porosity of the lunar crust from gravity and topography

	Density and porosity of the lunar crust from gravity and topography
	Huang, Qian 1,2; Wieczorek, Mark A.2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
	2012-05-11
卷号	117 期号:1 页码:1
英文摘要	Newly obtained gravity and topography data of the Moon, combined with a lithospheric flexure model that considers both surface and subsurface loading, are used to place constraints on the density of the upper crust from a localized spectral admittance analysis. Subsurface loads are found to be relatively unimportant in the highlands, and when subsurface loads are neglected, the best fitting bulk densities for a number of highland regions are found to vary from 2590 to 2870 kg m(-3), with a mean value of 2691 kg m(-3). Crustal rock densities estimated from geochemical considerations and global iron and titanium abundances imply somewhat greater densities, which we interpret as porosity affecting the gravity-derived bulk density estimates. The average porosity in the upper few kilometers of crust is calculated to be about 7.7%, which is consistent with porosity estimates of impact-fractured meteorites and terrestrial impact craters.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Geochemistry & Geophysics
研究领域[WOS]	Geochemistry & Geophysics
关键词[WOS]	POLE-AITKEN BASIN ; ELASTIC THICKNESS ; THERMAL STATE ; CONSTRAINTS ; MOON ; SPHERE ; MANTLE ; MINERALOGY ; MODEL ; COMPENSATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000304011100002
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18152]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Inst Phys Globe, Sorbonne Paris Cite, St Maur Des Fosses, France
推荐引用方式 GB/T 7714	Huang, Qian,Wieczorek, Mark A.. Density and porosity of the lunar crust from gravity and topography[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2012,117(1):1.
APA	Huang, Qian,&Wieczorek, Mark A..(2012).Density and porosity of the lunar crust from gravity and topography.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,117(1),1.
MLA	Huang, Qian,et al."Density and porosity of the lunar crust from gravity and topography".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 117.1(2012):1.