Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Jiapigou ore field, Huadian Co., Jilin Prefecture, Jilin Province (Manchuria; Dongbei Region), China

This page is currently not sponsored. Click here to sponsor this page.
 
Name(s) in local language(s): 夹皮沟金矿田, 桦甸市, 吉林市, 吉林省, 中国
 
Located on the easternmost portion of the northern margin of the North China Craton (NCC). The Jiapigou orefield is one of the most important gold-producing districts in China, having been responsible for nearly half of Chinas gold production during the 1960s.

The deposits are hosted by Archaean metamorphic rocks, in a shear zone and fault system that defines the boundary between the NCC and its adjacent orogenic belt to the northeast. They lie within several ductile shear zones cutting late Archean gneissic tonalite, trondhjemite, and granodiorite and amphibolite (2523±6 Ma), which have been retrogressed to greenschist facies. The deposits occur as massive auriferous quartz veins that contain sulphides (<10 vol.%) and, less commonly, disseminated- and stockwork-style mineralisations. While phyllic assemblages are the most common alteration style, potassic and chloritic alteration characterises felsic and mafic host rocks, respectively. No major intrusions are recorded in the area, although felsic, alkaline and mafic dykes are common, usually occupying the same fault system as the gold lodes. Dykes also locally host gold mineralisation. Zircon SHRIMP U­-Pb dates on pre-ore dykes yield ages of around 220 Ma, constraining the maximum age of gold mineralisation, whereas 40Ar/39Ar dates on hydrothermal sericite give an age of approximately 204 Ma suggesting a late Triassic gold-forming event. This timing is coeval with, or slightly later than, the post-orogenic magmatism that followed the final orogenesis of the Inner Mongolian-Daxinganling orogenic belt (IMDOB), which bounds the NCC to the north, suggesting that a post-orogenic tectonic setting is appropriate for the late Triassic gold mineralisation.

More than 100 gold deposits and occurrences have been delineated in this area that extends from southern Jilin Prefecture into western Yanbian Prefecture.

Mineral List

Mineral list contains entries from the region specified including sub-localities


62 entries listed. 49 valid minerals.

Localities in this Region


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

Poulsen, K.H., Taylor, B.E., Robert, F., Mortensen, J.K., Baoqin Lin, Ling Shang, Ershu Shen, and Lidong Zhang (1990): Report on the Sino-Canadian Gold Project 1987-1990. Geological Survey of Canada Open-File Report 2510.

Fengtong Zhao, Guangrong Xu, Yilin Liang, and Hongguang Zhao (1995): Geological characteristics and resources prospect of NW dense Au deposit zone in Huadian-Helong. Geology and Prospecting 31(6), 1-7.

Zhongshi Sun, Jun Deng, Yusheng Zhai, and Benzhi Feng (2001): Dynamic system collision, superimposing, and gold deposit forming in Jiapigou fold belt, Jilin Province. Geology and Prospecting 37(2), 23-27.

Hart, C.J., Goldfarb, R.J., Yumin Qu, 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(3/4), 326-351.

Laicheng Miao, Yumin Qiu, Weiming Fan, Fuqin Zhang, and Mingguo Zhai (2005): Geology, geochronology, and tectonic setting of the Jiapigou gold deposits, southern Jilin Province, China. Ore Geology Reviews 26, 137-165.

External Links


Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 5, 2015 10:38:20 Page generated: January 15, 2015 08:02:25