scholarly journals The giant Jiaodong gold province: The key to a unified model for orogenic gold deposits?

2016 ◽  
Vol 7 (3) ◽  
pp. 409-417 ◽  
Author(s):  
David I. Groves ◽  
M. Santosh
Geology ◽  
2021 ◽  
Author(s):  
Iain K. Pitcairn ◽  
Nikolaos Leventis ◽  
Georges Beaudoin ◽  
Stephane Faure ◽  
Carl Guilmette ◽  
...  

The sources of metals enriched in Archean orogenic gold deposits have long been debated. Metasedimentary rocks, which are generally accepted as the main metal source in Phanerozoic deposits, are less abundant in Archean greenstone belts and commonly discounted as a viable metal source for Archean deposits. We report ultralow-detection-limit gold and trace-element concentrations from a suite of metamorphosed sedimentary rocks from the Abitibi belt and Pontiac subprovince, Superior Province, Canada. Systematic decreases in the Au content with increasing metamorphic grade indicate that Au was mobilized during prograde metamorphism. Mass balance calculations show that over 10 t of Au, 30,000 t of As, and 600 t of Sb were mobilized from 1 km3 of Pontiac subprovince sedimentary rock metamorphosed to the sillimanite metamorphic zone. The total gold resource in orogenic gold deposits in the southern Abitibi belt (7500 t Au) is only 3% of the Au mobilized from the estimated total volume of high-metamorphic-grade Pontiac sedimentary rock in the region (25,000 km3), indicating that sedimentary rocks are a major contributor of metals to the orogenic gold deposits in the southern Abitibi belt.


2006 ◽  
Vol 40 (8) ◽  
pp. 874-886 ◽  
Author(s):  
Frank P. Bierlein ◽  
David I. Groves ◽  
Richard J. Goldfarb ◽  
Benoit Dubé

2013 ◽  
Vol 734-737 ◽  
pp. 265-268
Author(s):  
Jun Hao Cui ◽  
Tao Ren

On the basis of predecessors study, this paper found that outbreak frequency of mantle plume is increase, while scale is reduce. The mantle plume provides ore-forming minerals to orogenic gold deposits, as well as affords force to supercontinent formation and decomposition, for the more controls the global tectonic. Supercontinent is the movement of upper crust that could be cause by combine factors of cold and heat mantle plume. Supercontinent supply suitable tectonic environment for orogenic gold deposits. Further, we discuss the relationship between mantle plume, supercontinent and orogenic gold deposit on space and time. With the evolution of the earth, especially the energy loss, the frequency of orogenic gold mineralization is increasing, while the scale is reducing.


Geology ◽  
2017 ◽  
pp. G39018.1 ◽  
Author(s):  
Vikraman Selvaraja ◽  
Stefano Caruso ◽  
Marco L. Fiorentini ◽  
Crystal K. LaFlamme ◽  
Thi-Hao Bui

2018 ◽  
Vol 9 (3) ◽  
pp. 715-726 ◽  
Author(s):  
Biswajit Mishra ◽  
Kamal Lochan Pruseth ◽  
Pranjit Hazarika ◽  
Sakthi Saravanan Chinnasamy

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