登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Lake Tecopa Zeolite deposit, Lake Tecopa Basin, Inyo Co., California, USA

This page is currently not sponsored. Click here to sponsor this page.
 
 
A zeolite-B-borate-clay deposit located in sec. 9, T25N, R6E, SBM, 6.2 km (3.9 miles) SSE of Shoshone and 8.4 km (5.2 miles) N of Tecopa, in the basin of the former Pleistocene Lake Tecopa. Owner-Operator was East West Minerals Inc. (1988). Operated by Rook and Messer Excavating Co., California (1980). MRDS database stated accuracy for this location is 100 meters.

Mineralization is a B-borate-zeolite deposit (Mineral occurrence model information: Model code: 171; USGS model code 25ob; BC deposit profile: D02; Deposit model name: Sedimentary zeolites: Zeolites in tuffs of saline, alkaline-lake deposits), hosted in mudstone and tuff. Associated rocks include Pliocene-Pleistocene basalt. Local rocks include Quaternary alluvium and marine deposits.

Zeolites are found in tuffs of Pleistocene Lake Tecopa. Three diagenic mineral facies are present. The zeolite-bearing tuffs form a horseshoe-shaped map pattern open to the SE. Towards the lake margins, the zeolite-bearing facies grades into the fresh-glass facies. The central part of the basin is composed of the K-feldspar facies, which is a mixture of feldspar and/or searlesite. It is very difficult to distinguish between the zeolite and K-feldspar facies in the field. The deposits are essentially undisturbed (except for erosion), with dips of 0 to 7 degrees basinward.

Local geologic structures include normal faults which cut lake deposits in the SE part of the basin. The deposits of Lake Tecopa cover about 90 square miles and the 220 foot section contains 12 distinct tuff layers. Much of the lake deposits have been eroded away by the Amargosa River.

Production was processed at an 8,000 TPA plant in the Amargosa Valley of nevada. Production in 1988 was only about 10% of capacity. This operation supplies customers throughout the United States, Europe, and the Far East.

Mineral List



13 entries listed. 7 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sheppard, R.A. and Gude, A.J. (1968) Distribution and genesis of authigenic silicate minerals in tuffs of Pleistocene Lake Tecopa, Inyo County, California. USGS Professional Paper 597, 38 pp.: 13, 14, 15, 15-16.

Sheppard, R.A. and Gude, A.J. (1969b) Chemical composition and physical properties of the related zeolites offretite and erionite. American Mineralogist: 54: 877, 882-883.

Boles, J.R. (1972), Composition, optical properties, cell dimensions and thermal stability of some heulandite group zeolites: American Mineralogist: 57: 1463-1493.

Surdam, R.C. (1977), Zeolites in Closed Hydrologic Systems, in Mumpton, F.A., editor, Mineralogy and Geology of Natural Zeolites, Mineralogical Society of America Reviews in Mineralogy, volume 4: 65-91.

Starkey, H.C. and Blackmon, P.D. (1979) Clay mineralogy of Pleistocene Lake Tecopa, Inyo County, California. USGS Professional Paper 1061, 34 pp.: 13, 18.

Pemberton, H. Earl (1983), Minerals of California: 351 & 353, 368, 374, 381, 439, 441.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10100710.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270148.

 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.2.17 18:21:44 Page generated: 2015.1.12 18:00:19
Go to top of page