Biogeochemical Exploration for Mineral DepositsAleksandr Leonidovich Kovalevsky This work is a translation of the revised and considerably supplemented edition of A.L. Kovalevsky's well-known monograph on biogeochemical methods of prospecting for minerals. The approach is essentially practical. Principles of the formation of biogeochemical haloes for 14 elements are discussed and practical results of biogeochemiacl prospecting for molybdenum and sulphide deposits are presented. An excellent chapter on methodology tells exactly how to undertake the tasks in view, including sample preparation and analysis, interpretation of data and the combination of biogeochemical techniques with other procedures. Perhaps the most important contribution made by this book is the principle of selection of suitable biosamples whose elemental content is proportional to that of the substrate. This book will be of immeasurable assistance to the practical field worker engaged in biogeochemical prospecting. It will also be of interest to geologists, geochemists, geophysicists and specialists in related areas in both academic and industrial spheres. |
Contents
Fundamental Principles of Biogeochemical | 8 |
Principles of the Formation of Biogeochemical | 24 |
vi | 42 |
Niobium and tantalum | 98 |
Practical Results of Biogeochemical Prospecting | 114 |
ix | 157 |
Conclusions | 203 |
Glossary of terms and abbreviations | 210 |
| 218 | |
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Common terms and phrases
aerial anomalies and haloes areas Asian birch barrier bast biogeochemical anomalies biogeochemical exploration biogeochemical haloes biogeochemical method biogeochemical prospecting biogeochemical samples biogeochemistry birch bark breccia cadmium cedar characteristics coefficient common pine concentrations content ppm contrast Dahurian and Siberian Dahurian larch Dahurian rhododendron depth depth-effective detection determined eluvial European and Asian external layers Figure fireweed geochemical geological geophysical goat willow gossan herbaceous plants indicator elements larch bark layers of bark lead content ligneous plants lithobiogeochemical lithogeochemical haloes maximum mercury minimally-anomalous molybdenum molybdenum content molybdenum deposit mountain ash needles non-barrier biosamples observation points ore-bearing orebodies oriental spirea pedogeochemical haloes pine bark pine cones plant ash PSC values quantitative RCBS root zone Siberian fir Siberian larch Siberian pine Siberian spruce silver soil horizon spruce stockwork Table terrain thallium thickness transects trembling aspen trunk bark tufted vetch twigs various wormwood zinc
