干旱区生态环境知识资源中心(Arid): Recency of Faulting and Neotechtonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range

Arid

DOI	10.2172/808727
报告编号	DOE/ID/13620
来源ID	OSTI_ID: 808727
	Recency of Faulting and Neotechtonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range
	Steven Wesnousky; S. John Caskey; John W. Bell
英文摘要	We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal development. The approach developed here during our pilot study provides an inexpensive approach to (1) better define the best locations to site geothermal wells within known geothermal fields and (2) to define the location of yet discovered geothermal fields which are not manifest at the surface by active geothermal springs. More specifically, our investigation shows that induced stress concentrations at the endpoints of normal fault ruptures appear to promote favorable conditions for hydrothermal activity in two ways. We conclude that an understanding of the spatial distribution of active faults and the past history of earthquakes on those faults be incorporated as a standard tool in geothermal exploration and in the siting of future boreholes in existing geothermal fields.
出版年	2003
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	15 GEOTHERMAL ENERGY ; BOREHOLES ; EARTHQUAKES ; GEOTHERMAL EXPLORATION ; GEOTHERMAL FIELDS ; GEOTHERMAL WELLS ; HOT SPRINGS ; NEVADA ; RUPTURES ; SPATIAL DISTRIBUTION ; STRESSES Geothermal Legacy
URL	http://www.osti.gov/scitech/servlets/purl/808727
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/268495
推荐引用方式 GB/T 7714	Steven Wesnousky,S. John Caskey,John W. Bell. Recency of Faulting and Neotechtonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range,2003.