Gem  Bearing Stream Sediments of Srilanka Geology and Geochmistry
By C.B.Dissanayake and Rohana Chandrajith
Publication of The Gem and Jewellery Research and Training Institute and National Gem and Jewellery Authority
First Published 2003
ISBN 955-9371-02-9
This book contains the summary of the findings of sum pioneering research work carried out by the authors and sum of their colleagues in Sri Lanka and in Germany. The work encompasses the stream sediment geochemistry of the main gem fields of Sri Lanka. It is shown here that in view of the geology, structure, drainage patterns and the physiography, Sri Lanka is well suited for geochemical exploration.
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