Results 41 to 50 of about 6,885 (228)

Controls on the Distribution of Invisible and Visible Gold in the Orogenic Gold Deposits of the Yangshan Gold Belt, West Qinling Orogen, China [PDF]

Minerals, 2019
Six orogenic gold deposits constitute the Yangshan gold belt in the West Qinling Orogen. Gold is mostly invisible in solid solution or in the sulfide lattice, with minor visible gold associated with stibnite and in quartz-calcite veins. Detailed textural and trace-element analysis of sulfides in terms of a newly-erected paragenetic sequence for these ...
Nan Li, Jun Deng, David Groves, Ri Han
openaire   +1 more source

The metallogenic evolution of the Greater Antilles [PDF]

, 2011
The Greater Antilles host some of the world's most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium.
Lewis, J.F., López-Kramer, J., Nelson, C.E., Proenza, J.A.   +3 more
core   +6 more sources

Mineral systems: Their advantages in terms of developing holistic genetic models and for target generation in global mineral exploration

Geosystems and Geoenvironment, 2022
Since the concept of mineral systems was first proposed, there have been growing calls for their use in deriving holistic genetic models and in assisting in exploration targeting in a world of diminishing mineral discoveries.
David I. Groves, M. Santosh, Daniel Müller, Liang Zhang, Jun Deng, Li-Qiang Yang, Qing-Fei Wang   +6 more
doaj   +1 more source

LATE-OROGENIC GOLD DEPOSITS IN EGYPT

Mining science and technology, 2018
Egypt belongs to states developing its mineral resource base. Gold-bearing territory of Egypt is located within the Nubian-Arabian shield in the Neoproterozoic collision zone of transverse thrusts. Granitoid massifs are widely developed within this tectonic zone.
openaire   +3 more sources

Occurrence Characteristics of Gold and the Typomorphic Characteristics of Pyrite in the Yizhuxiang Gold Deposit of the Daduhe Metallogenic Belt

Kuangchan zonghe liyong
[Objective] Orogenic gold deposit is widely developed in the Daduhe gold metallogenic belt. The Yizhuxiang gold deposit is one of the representative medium-sized deposits in the Daduhe gold metallogenic belt.
Haijun ZHANG, Tianqi MA, Wenhao ZHAO, Cuihua CHEN, Shuyue LIU, Xiaokong LIU, Rendong DENG   +6 more
doaj   +1 more source

The structural history and mineralization controls of the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania [PDF]

, 2016
The Geita Hill gold deposit is located in the Archean Geita Greenstone Belt and is one of the largest gold deposits in East Africa. The Geita Greenstone Belt experienced a complex deformation and intrusive history that is well illustrated and preserved ...
Blenkinsop, Thomas, Brayshaw, M., Cook, Y. A., Dirks, P. H. G. M., Kolling, S. L., Sanislav, I. V.   +5 more
core   +1 more source

Archaean Gold Mineralization in an Extensional Setting: The Structural History of the Kukuluma and Matandani Deposits, Geita Greenstone Belt, Tanzania [PDF]

, 2018
Three major gold deposits, Matandani, Kukuluma, and Area 3, host several million ouncez (Moz) of gold, along a ~5 km long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania.
Blenkinsop, Thomas, Dirks, Paulus, Kolling, Sergio, Kwelwa, Shimba, Sanislav, Ioan   +4 more
core   +4 more sources

Gold mineralization of the Arctic Belt of the Russian Far East

Руды и металлы
The gold ore-bearing potential of the Early Cretaceous Arctic orogenic belt of the Far Eastern Arctic is characterized. The gold mineralization is represented by the Au-quartz vein, Au-sulfide disseminated in folded and crushed zones, Au-Bi (gold-rare ...
Goryachev N. A.
doaj   +1 more source

The meillers Autunian hydrothermal chalcedony : first evidence of a similar to 295 Ma auriferous epithermal sinter in the Frech Massif Central. [PDF]

, 2004
The Meillers "quartzite" deposit represents a major hydrothermal siliceous sinter, some 50 m thick and covering an area of some 30 ha within Autunian sandstone of the northern Massif Central.
Cocherie, Alain, Le Berre, P., Marcoux, Eric   +2 more
core   +3 more sources

Geology, fluid inclusions, mineral and (S-O) isotope chemistry of the Badran orogenic Au deposit, Yana-Kolyma belt, eastern Siberia: implications for ore genesis

Frontiers in Earth Science
The Badran orogenic gold deposit is located in the Yana-Kolyma belt, Eastern Siberia; it has proven reserves of ∼9.3 t of gold and an average grade of 7.8 ppm. The total gold production at the Badran deposit since 1984 amounts to ∼34 t.
Valery Fridovsky, Sergey Kryazhev, Sergey Kryazhev, Lena Polufuntikova, Maxim Kudrin, Galina Anisimova   +5 more
doaj   +1 more source