Biogeochemical investigations of the tin ore deposits of the Soviet Far East

Ivashov, P.V.; Bardyuk, V.V.

Geokhimiya 2: 228-232


ISSN/ISBN: 0016-7525
Accession: 030304787

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Biogeochemical methods of exploration for tin deposits may be very effective in the Soviet Far East. Tin contents ranging from 0.001 to 0.3 percent were found in the ash of plants growing in mixed evergreen-deciduous forests on brown upland forest soils. Greatly increased tin contents of 0.1 to 0.3 percent (200-600 times average) were noted directly over ore bodies in the following botanical concentrators: Artemisia, Carex, and the mosses Polytrichum and Mnium. The accumulation of tin in botanical concentrators is several times higher than in soils and is thus a better indicator of tin deposits than secondary dispersion halos in soils.