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Автор(ы):Goldfarb R.J., Hart C.J.R.
Издание:2002 г., 9 стр.
Язык(и)Английский
Distinguishing intrusion-related from orogenic gold systems / Отличие золоторудных систем, связанных с интрузиями, от орогенных

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 are recognized throughout the Tintina Gold Province of the northern North American Cordillera. Because such examples may have many features in common with orogenic gold deposits, such as anomalous Bi, W, and Te,

ТематикаПолезные ископаемые
Выпуск 19
Автор(ы):Bucci L.A., Groves D.I., Hagemann S.G., Stranding J.G.
Издание:Journal Ore geology reviews, 2002 г., 45 стр.
Язык(и)Английский
The Archean Chalice gold deposit: a record of complex, multistage, high-temperature hydrothermal activity and gold mineralisation associated with granitic rocks in the Yilgarn Craton, Western Australia

Золоторудное месторождение Архейская чаша: свидетельство сложной, многоступенчатой, высокотемпературной гидротермальной активности и золотого оруденения, связанного с гранитными породами на кратоне Йилгарн, Западная Австралия. 

 

The Chalice gold deposit (~ 20 t Au produced), in the southwestern portion of the Late-Archean Norseman-Wiluna greenstone belt of the Yilgarn Craton, Western Australia, is hosted both in a sequence of intercalated mafic and ultramafic amphibolites and a post-peak metamorphism monzogranite dike. The deposit is flanked on the western side by calc-alkaline plutonic rocks, and to the east by a predominantly monzogranitic pluton, with at least four generations of monzogranitic dikes that intrude the local mine stratigraphy. Locally, four deformation events (D1–D4) have affected this sequence of amphibolites, and two stages of gold mineralisation are recognised, controlled by the progressive D2 event.

ТематикаПолезные ископаемые
МеткиArchean Chalice gold deposit, Calc-silicate alteration, Hypozonal, Monzogranite, Orogenic-gold, Золото, Карбонат-силикатные изменения, Монцограниты
Ленты новостей
1144.12