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A. V. Snachev
Institute of Geology of the Ufa Federal Research Centre of the Russian Academy of Sciences, 16/2 Karl Marx Str., Ufa 450077, Russia
Russian Federation
Head of Lab, Dr.Geol.-Min.Sci
E. P. Shchulkin
Chelyabinskgeosyemka Ltd, 89 Omskaya Str., Chelyabinsk 454048, Russia
Russian Federation
Geologist
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