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La'erma Au-Se deposit (Laerma Au-Se deposit), Luqu Co., Gannan Autonomous Prefecture, Gansu Province, China
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Latitude: 34°0'2"N
Longitude: 102°19'12"E
 
Name(s) in local language(s): 拉尔玛金硒矿床, 碌曲县, 甘南藏族自治州, 甘肃省, 中国
 
Carlin-like gold deposit, hosted in Cambrian-Ordovician carbonaceous and siliceous slates, and related to Mesozoic diorite dykes. The deposit also contains minor uranium ores.

Mineral List

Allophane
Antimonselite
Arsenopyrite
'Asphaltum'
Aurostibite
Baryte
Berzelianite
'Bitumen'
Böhmite
Bornite
Calcite
Chalcocite
Chalcopyrite
'Chert'
'Chlorite Group'
Cinnabar
Clausthalite
Clinohedrite
Covellite
var: Selenian Covellite
Dickite
Dolomite
Famatinite
Ferroselite
Fluorite
Galena
Gersdorffite
Goethite
Gold
var: Electrum
Gypsum
'Hydromuscovite'
Kaolinite
Kullerudite
Lautite
Marcasite
Metacinnabar
Molybdenite
Montmorillonite
Muscovite
var: Illite

var: Sericite
Orpiment
Polydymite
Pyrite
var: Arsenian Pyrite
Pyrrhotite
Quartz
var: Chalcedony
Realgar
Siderite
Silver
var: Küstelite

Sphalerite
Stibnite
var: Selenian Stibnite
Tennantite
var: Zincian Tennantite
Tetrahedrite
var: Zincian Tetrahedrite
Tiemannite
'Unnamed (Ni Arsenide Sulphide)'
Uraninite
Vaesite
Vermiculite
Zeolite Group


64 entries listed. 48 valid minerals.

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References

Chuanzhi Luo (1991): Paragenetic relation of the stratabound deposits in the western Qinling fold system. Geology and Prospecting 27(4), 3-13.

Yuanzhen Zhang, Dakang Song, and Jingyao Sun (1992): The discovery and study of Tiemannite in Gansu, China. Acta Mineralogica Sinica 12(1), 83-86.

Minghua Zheng, Jiajun Liu, Jianming Liu, and Wenquan Lu (1993): The first discovery and preliminary study of selenio-sulfantimonide in China. Journal of Mineralogy and Petrology 13(2).

Dequan Shuai and Xiaojiang Hu (1995): Mineral component features and gold migration patterns of Laerma gold deposit in Gansu-Sichuan. Geology and Prospecting 31(5), 28-35.

Zhiping Li, and S.G. Peters (1998): Comparative Geology and Geochemistry of Sedimentary-Rock-Hosted (Carlin-Type) Gold Deposits in the People's Republic of China and in Nevada, USA. USGS Open-File Report 98-466.

Wen Hanjie and Qiu Yuzhou (1999): Organic and inorganic occurrence of selenium in Laerma Se-Au deposit. Science in China, Series D (Earth Sciences), 42(6), 662-669.

Jiajun Liu, Minghua Zheng, Jianming Liu, and Wenchao Su (2000): Geochemistry of the La'erma and Qiongmo Au-Se deposits in the western Qinling Mountains, China. Ore Geology Reviews 17, 91-111.

Liu Jiajun, Liu Jianming, Su Wenchao and Feng Caixia (2001): Ore forming material sources of La'erma gold deposit, western Qinling, China. Presentation at the 11th Annual V.M. Goldschmidt Conference, Abstract no. 3471.

Wen Hanjie and Qiu Yuzhou (2001): Occurrence of Selenium in Laerma Se-Au deposit, China. Presentation at the 11th Annual V.M. Goldschmidt Conference, Abstract no. 3506.

Peters, S.G. (2002): Geology, Geochemistry and Geophysics of Sedimentary-Hosted Au Deposits in P.R. China. USGS Open-File Report 02-131.

Jingwen Mao, Yumin Qiu, Goldfarb, R.J., Zhaochong Zhang, Garwin, S., and Ren Fengshou (2002): Geology, distribution, and classification of gold deposits in the western Qinling belt, central China. Mineralium Deposita 37, 352-377.

Jiajun Liu, Zhiming Li, Jianming Liu, Jianping Wang, Caixia Feng, and Wenquan Lu (2005): Mineralogy of the Stibnite-Antimonselite Series in the Nature. Journal of Jilin University (Earth Science Edition) [Jilin Daxue Xuebao (Diqiu Kexue Ban)] 35(5), 545-553.

Hanjie Wen, Carignan, J., Yuzhuo Qiu, and Shirong Liu (2006): Selenium Speciation in Kerogen from Two Chinese Selenium Deposits: Environmental Implications. Environmental Science and Technology 40(4), 1126-1132.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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