국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Concretions in Exhumed Channels Near Hanksville Utah: Implications for Mars
저자	Clarke, Jonathan;; Stoker, Carol R.
Keyword	CARBONATES;; CONCRETES;; MARS SURFACE;; PETROGRAPHY;; PHOTOMICROGRAPHS;; PLAINS;; SATELLITE IMAGERY;; STRAITS;; STRUCTURAL BASINS;; TERRAIN;; UTAH
URL	http://hdl.handle.net/2060/20110023235
보고서번호	ARC-E-DAA-TN4106
발행년도	2011
출처	NTRS (NASA Technical Report Server)
ABSTRACT	The landscape near Hanksville, Utah, contains a diversity of Mars analogue features. These included segmented and inverted anatasomosing palaeochannels exhumed from the Late Jurassic Brushy Basin Member of the Morrison Formation that hosts abundant small carbonate concretions. The exhumed and inverted channels closely resemble many seen on the surface of Mars in satellite imagery and which may be visited by surface missions in the near future. The channels contain a wealth of palaeo-environmental information, but intrinsically difficult terrain would make their study challenging on Mars. We show that an unexhumed channel feature can be detected geophysically, this may allow their study in more easily accessed terrain. The concretions morphologically and in their surface expression parallel the haematite blue berries that are strewn across the surface of Meridiani Planum on Mars. They are best developed in poorly cemented medium to coarse channel sandstones and appear to have formed early in the diagenetic history.