Peculiarities of distribution of trace elements in the major ore types from the Mesozoic gold deposits of east Transbaikalia |
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| Authors: | B N Abramov |
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| Institution: | 1. Institute of Natural Resources, Ecology, and Cryology, Siberian Branch, Russian Academy of Sciences, Chita, Russia
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| Abstract: | It has been established that different ore types from the Mesozoic gold deposits of East Transbaikalia were formed from variously differentiated ore-bearing magmatic chambers at different depths of the upper continental crust. The magmatic chambers, which were sources of gold-quartz-arsenopyrite ores, were most differentiated (Eu/Eu* = 0.29–0.32; Rb/Sr = 0.98–1.40) and shallow-seated (Eu/Sm = 0.08–0.14) in contrast to less differentiated and deeper sources of the gold-quartz and gold-sulfide-quartz ores (Eu/Eu* = 0.53–0.72, Rb/Sr = 0.10–0.54, Eu/Sm = 0.11–0.19). |
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