Titlebook: Gold metallogeny and exploration; R. P. Foster Book 1991 Blackie and Son Ltd 1991 chemistry.database.deposits.distribution.environment.gol

向下

Pre-operative Measurement of X-Rays,allochthonous in relation to the bedrock they overlie. In the context of almost totally glaciated landscapes, which includes most of North America north of 40°N, Greenland and Iceland, most of Europe north of 50°N, extensive parts of Asia north of 60°N, parts of South America, and Antarctica, the se

语源学

hazard

Low Invasive Pediatric Cardiac Surgeryand, then, mining, recovering and selling gold from them. Thus, economic deposits are the focal point of the gold-supply process. The economic characteristics of gold deposits are shaped by their geological features. Gold deposits are initially unknown and, once discovered, are fixed in size and hig

割公牛膨胀

变异

Clinch

Archaean lode gold deposits,situated in most major cratonic areas (e.g. Australia, Brazil, Canada, India, South Africa, Zimbabwe: Foster, 1984; Macdonald, 1986; Ho and Groves, 1987). Even relatively small cratons typically contain some Archaean gold deposits (e.g. Tanzania; van Straaten, 1984), and the Archaean belts of China

偶像

Project

琐事

Intrusion-related gold deposits,osits (Figure 6.1). Here the spectrum is subdivided into: (a) intrusion-hosted stock-work/disseminated deposits of both porphyry and non-porphyry types, the former possessing all the essential geological attributes (especially multidirectional stock-works) of typical porphyry copper and/or molybdenu

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