Orogenic gold deposits have formed over more than 3 billion years of Earth's history,
episodically during the Middle Archean to younger Precambrian, and continuously …

Metamorphic belts are complex regions where accretion or collision has added to, or
thickened, continental crust. Gold-rich deposits can be formed at all stages of orogen …

Epigenetic gold deposits in metamorphic terranes include those of the Precambrian shields
(approx 23,000-25,000 t Au), particularly the Late Archean greenstone belts and …

Reduced intrusion-related gold systems (RIRGS) are characterized by widespread arrays of
sheeted auriferous quartz veins that preferentially form in the brittle carapace at the top of …

The northern margin of the North China craton is well-endowed with lode gold deposits
hosting a resource of approximately 900 tonnes (t) of gold. The~ 1,500-km-long region is …

Twenty‐five Early and mid‐Cretaceous (145–90 Ma) plutonic suites and belts are defined
across Alaska and Yukon, in the northern North American Cordillera, on the basis of …

Abstract The Tongren-Xiahe-Hezuo polymetallic district in the West Qinling Orogen of
central China has emerged as a promising new gold belt. However, significant debate exists …

The Tombstone, Mayo and Tungsten plutonic suites of granitic intrusions, collectively termed
the Tombstone-Tungsten Belt, form three geographically, mineralogically, geochemically …

Evidence of secondary gold enrichment due to the addition of new gold into an earlier
orogenic quartz-carbonate vein deposit by magmatic-hydrothermal fluids is strongly …

Reduced intrusion-related gold deposits have become a new, low-grade, large-tonnage
exploration target during the last decade. The best recognized examples of such deposits …