Ridge-like lava tube systems in southeast Tharsis, Mars

doi:10.1016/j.geomorph.2017.08.023

	Ridge-like lava tube systems in southeast Tharsis, Mars
	Zhao, Jiannan 1,2; Huang, Jun 1,2; Kraft, Michael D.3; Xiao, Long 1; Jiang, Yun2
刊名	GEOMORPHOLOGY
	2017-10-15
卷号	295 页码:831-839
关键词	Lava tube Sinuous ridge Volcanism Tharsis Mars
ISSN号	0169-555X
DOI	10.1016/j.geomorph.2017.08.023
通讯作者	Huang, Jun(junhuang@cug.edu.cn)
英文摘要	Lava tubes are widely distributed in volcanic fields on a planetary surface and they are important means of lava transportation. We have identified 38 sinuous ridges with a lava-tube origin in southeast Tharsis. The lengths vary between similar to 14 and similar to 740 km, and most of them occur in areas with slopes <03 degrees. We analyzed their geomorphology in detail with CTX (Context Camera) and HiRISE (High Resolution Imaging Science Experiment) images and DTM (digital terrain model) derived from them. We identified three cross-sectional shapes of these sinuous ridges: round-crested, double-ridged, and flat-crested and described features associated with the lava tubes, including branches, axial cracks, collapsed pits, breakout lobes, and tube-fed lava deltas. Age determination results showed that most of the lava tubes formed in Late Hesperian and were active until the Hesperian-Amazonian boundary. We proposed that these lava tubes formed at relatively low local flow rate, low lava viscosity, and sustained magma supply during a long period. Besides, lava flow inflation is also important in the formation of the ridge-like lava tubes and some associated features. These lava tubes provide efficient lateral pathways for magma transportation over the relatively low topographic slopes in southeast Tharsis, and they are important for the formation of long lava flows in this region. The findings of this study provide an alternative formation mechanism for sinuous ridges on the martian surface. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	KILAUEA VOLCANO ; FLOW-FIELD ; MAUNA-ULU ; HAWAII ; EMPLACEMENT ; EVOLUTION ; MORPHOLOGY ; INFLATION ; PAHOEHOE ; ORIGIN
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000413175000061
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/22802]
专题	中国科学院紫金山天文台
通讯作者	Huang, Jun
作者单位	1.China Univ Geosci, Planetary Sci Inst, Sch Earth Sci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China 3.Western Washington Univ, Geol Dept, Bellingham, WA 98225 USA
推荐引用方式 GB/T 7714	Zhao, Jiannan,Huang, Jun,Kraft, Michael D.,et al. Ridge-like lava tube systems in southeast Tharsis, Mars[J]. GEOMORPHOLOGY,2017,295:831-839.
APA	Zhao, Jiannan,Huang, Jun,Kraft, Michael D.,Xiao, Long,&Jiang, Yun.(2017).Ridge-like lava tube systems in southeast Tharsis, Mars.GEOMORPHOLOGY,295,831-839.
MLA	Zhao, Jiannan,et al."Ridge-like lava tube systems in southeast Tharsis, Mars".GEOMORPHOLOGY 295(2017):831-839.