干旱区生态环境知识资源中心(Arid): National Uranium Resource Evaluation: Marfa Quadrangle, Texas

Arid

DOI	10.2172/6920439
报告编号	PGJ/F-001-82
来源ID	OSTI_ID: 6920439
	National Uranium Resource Evaluation: Marfa Quadrangle, Texas
	Henry, C D; Duex, T W; Wilbert, W P
英文摘要	The uranium favorability of the Marfa 1/sup 0/ by 2/sup 0/ Quadrangle, Texas, was evaluated in accordance with criteria established for the National Uranium Resource Evaluation. Surface and subsurface studies, to a 1500 m (5000 ft) depth, and chemical, petrologic, hydrogeochemical, and airborne radiometric data were employed. The entire quadrangle is in the Basin and Range Province and is characterized by Tertiary silicic volcanic rocks overlying mainly Cretaceous carbonate rocks and sandstones. Strand-plain sandstones of the Upper Cretaceous San Carlos Formation and El Picacho Formation possess many favorable characteristics and are tentatively judged as favorable for sandstone-type deposits. The Tertiary Buckshot Ignimbrite contains uranium mineralization at the Mammoth Mine. This deposit may be an example of the hydroauthigenic class; alternatively, it may have formed by reduction of uranium-bearing ground water produced during diagenesis of tuffaceous sediments of the Vieja Group. Although the presence of the deposit indicates favorability, the uncertainty in the process that formed the mineralization makes delineation of a favorable environment or area difficult. The Allen intrusions are favorable for authigenic deposits. Basin fill in several bolsons possesses characteristics that suggest favorability but which are classified as unevaluated because of insufficient data. All Precambrian, Paleozoic, other Mesozoic, and other Cenozoic environments are unfavorable.
出版年	1982
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS ; TEXAS ; URANIUM DEPOSITS ; EVALUATION ; AERIAL SURVEYING ; DATA ANALYSIS ; EXPERIMENTAL DATA ; GEOCHEMICAL SURVEYS ; GEOLOGICAL SURVEYS ; PETROLOGY ; RADIOMETRIC SURVEYS ; SANDSTONES ; DATA ; FEDERAL REGION VI ; GEOLOGIC DEPOSITS ; GEOLOGY ; GEOPHYSICAL SURVEYS ; INFORMATION ; MINERAL RESOURCES ; NORTH AMERICA ; NUMERICAL DATA ; RESOURCES ; ROCKS ; SEDIMENTARY ROCKS ; SURVEYS ; USA 050200* -- Nuclear Fuels-- Exploration-- (-1987)
URL	http://www.osti.gov/scitech/servlets/purl/6920439
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/263357
推荐引用方式 GB/T 7714	Henry, C D,Duex, T W,Wilbert, W P. National Uranium Resource Evaluation: Marfa Quadrangle, Texas,1982.