Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Analytical Studies of Stream Sediments of Sri Lanka for Identification of Gold-Bearing Areas and Delineation of Ultramafic Bodies


Affiliations
1 Centre for Analytical Research and Development, University of Colombo, Sri Lanka
2 Departrnent of Chemistry, Biochemistry and Biophysics, Masscy University, New Zealand
3 Trace Analysis Research Centre, Dalhousie University, Halifax, Canada
     

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Trace element analyses of stream sediments in Sri Lanka have been carried out to identify existtncc of ultrarnafic rocks in areas other than those demarcated as serpentinite zones. Residual soil analysis was used to confirm the results of delineation of a scrpentinite zone by photogrammetric study. Inter-element correlations are shown to be significant in these studies. The analyses also indicate anomalous levels of gold (>20 ng/g), along the Highland Group and the Highland-Eastern Vijayan boundary as demarcated by Abeysinghe.
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  • Analytical Studies of Stream Sediments of Sri Lanka for Identification of Gold-Bearing Areas and Delineation of Ultramafic Bodies

Abstract Views: 187  |  PDF Views: 2

Authors

R. S. Ramakrishnal
Centre for Analytical Research and Development, University of Colombo, Sri Lanka
D. Dharmadasa
Centre for Analytical Research and Development, University of Colombo, Sri Lanka
R. R. Brooks
Departrnent of Chemistry, Biochemistry and Biophysics, Masscy University, New Zealand
D. E. Ryan
Trace Analysis Research Centre, Dalhousie University, Halifax, Canada

Abstract


Trace element analyses of stream sediments in Sri Lanka have been carried out to identify existtncc of ultrarnafic rocks in areas other than those demarcated as serpentinite zones. Residual soil analysis was used to confirm the results of delineation of a scrpentinite zone by photogrammetric study. Inter-element correlations are shown to be significant in these studies. The analyses also indicate anomalous levels of gold (>20 ng/g), along the Highland Group and the Highland-Eastern Vijayan boundary as demarcated by Abeysinghe.