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Palaeophysiology : the organic origin of some minerals occurring in sedimentary rocks

Published online by Cambridge University Press:  14 March 2018

J. V. Samoilov*
Affiliation:
High School of Agriculture, Moscow

Extract

During the last few years I have applied myself to the study of some minerals occurring in the sedimentary rocks of a definite geological horizon. The success of my investigations was greatly favoured by the fact that the mineralogical material was collected during the course of the systematic geological exploration of the phosphate deposits of Russia, which during the past eight years has been under my immediate supervision.

The explorations just mentioned were begun in the north-eastern part of European Russia, and several occurrences of barite were found in the first year during the field study of the phosphate deposits in the government of Kostroma.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1917

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References

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page 98 note 4 There are, thus, in the blood of different kinds of animals the following metals: iron, manganese, copper, and vanadium. But what have all these metals in common ? They stand near to each other in their atomic weight in the following order: V=51, Cr=52, Mn=55, Fe=56, Co=59, Ni=59, Cu=68. Perhaps as the result of further investigations, there will be discovered organisms whose blood contains metals occupying the intervals in the range just adduced, namely chromium, cobalt, and nickel.