干旱区生态环境知识资源中心(Arid): Photogeologic and kinematic analysis of lineaments at Yucca Mountain, Nevada: Implications for strike-slip faulting and oroclinal bending

Arid

DOI	10.2172/138789
报告编号	USGS-OFR--91-623
来源ID	OSTI_ID: 138789
	Photogeologic and kinematic analysis of lineaments at Yucca Mountain, Nevada: Implications for strike-slip faulting and oroclinal bending
	O`Neill, J.M.; Whitney, J.W.; Hudson, M.R.
英文摘要	The main structural grain at Yucca Mountain, as seen from aerial photographs, is a pronounced north-trending linear fabric defined by parallel east-tilted fault-block ridges. The ridges are bounded on the west by normal faults that are easily recognizable on aerial photographs, mainly as isolated, colinear scarps in alluvium and as offset bedrock units. AH ridge-bounding to adjacent faults, most commonly by short northwest-trending fault splays. The generally north-trending high-angle faults primarily display down-to-the-west normal offset, but also have an auxiliary component of left-lateral slip. Left-lateral slip is indicated by offset stream channels, slickenlines, and en echelon fault splays that are structurally linked, commonly by pull-apart grabens. These grabens, best seen on low-sun angle aerial photographs, rangefrom tens of meters to more than 3 kilometers wide. The smallest pull-apart zones are well developed along the Windy Wash and Solitario Canyon faults on the west side of Yucca Mountain; the largest of these features is interpreted to structurally link the Bow Ridge and Solitario Canyon faults in the north-central part of Yucca Mountain; the pronounced northwest-trending drainage system in this part of Yucca Mountain appears to be controlled by tension fractures related to left-lateral strike-slip movement on these north-trending faults. Midway Valley, directly east of this pull-apart graben, may also owe its origin, in part, to a pull-apart mechanism.
出版年	1992
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	58 GEOSCIENCES ; 05 NUCLEAR FUELS ; YUCCA MOUNTAIN ; SEISMOLOGY ; GEOLOGY ; TOPOGRAPHY ; VOLCANISM ; AERIAL SURVEYING ; HIGH-LEVEL RADIOACTIVE WASTES ; UNDERGROUND DISPOSAL ; Yucca Mountain Project
URL	http://www.osti.gov/scitech/servlets/purl/138789
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/264970
推荐引用方式 GB/T 7714	O`Neill, J.M.,Whitney, J.W.,Hudson, M.R.. Photogeologic and kinematic analysis of lineaments at Yucca Mountain, Nevada: Implications for strike-slip faulting and oroclinal bending,1992.