Shear zone and quartz vein-type gold deposit, consisting of diseminations and veinlets that occur parallel to schistosity in mylonite. Host rock alterations are albite, silica, sericite, chlorite, pyrite, and carbonate alterations. The deposit is located in a tonalite-trondhjemite-granodiorite belt in the North China Platform. The host rocks are derived from mafic volcanic rocks, volcanic graywackes, and banded iron formations (BIF) that are metamorphosed to granulite, pyroxene gneiss, and amphibolite. The isotopic age of the metamorphic rock is 3.5 Ga. The metamorphosed supracrustal rock is interpreted by some workers as a greenstone belt. Shearing and retrograde metamorphism to greenschist facies probably occurred at 2.5 to 2.6 Ga, 1.7 to 1.8 Ga, or later.
Ref.:
- Hart, C.J.R., Goldfarb, R.J., Yumin Qiu, Snee, L., Miller, L.D., and Miller, M.L. (2002): Gold deposits of the northern margin of the North China Craton: multiple late Paleozoic-Mesozoic mineralizing events. Mineralium Deposita 37, 326-351.
- Rodionov, S.M. et al. (2004): Descriptions of Northeast Asia Metallogenic Belts. In: Rodionov, S.M., Obolenskiy, A.A., Seminskiy, Z.V., Bounaeva, T.V., and Nokleberg, W.J. (eds.): USGS Open-File Report 2004-1252.
- http://www.portergeo.com.au/tours/orientgold2007/orientgold2007deposits.asp
|
|
|
Map Reference: 40°27'15"N , 118°30'5"E
Important Disclaimer: 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.
Switch between Map and Globe
|
