dc.contributor.author |
Egodawatta, EADMU |
|
dc.contributor.author |
De Zoysa, GDP |
|
dc.contributor.author |
Prasanna, DAKDG |
|
dc.contributor.author |
Mohommedshiffa, J |
|
dc.contributor.author |
Ratnayake, NP |
|
dc.contributor.author |
Weerawarnakula, S |
|
dc.contributor.editor |
Ratnayake, NP |
|
dc.contributor.editor |
Abeysinghe, AMKB |
|
dc.contributor.editor |
Premasiri, HMR |
|
dc.contributor.editor |
Karunaratne, S |
|
dc.date.accessioned |
2022-06-29T05:37:06Z |
|
dc.date.available |
2022-06-29T05:37:06Z |
|
dc.date.issued |
2010-09 |
|
dc.identifier.citation |
Egodawatta, E.A.D.M.U., De Zoysa, G.D.P., Prasanna, D.A.K.D.G., Mohommedshiffa, J. Ratnayake, N.P., & Weerawarnakula, S. (2010). Occurrence and depositional character of monazite deposit in the offshore and coastal zone around South-West region in Sri Lanka.
In N. P. Ratnayake, A.M.K.B. Abeysinghe, H.M.R. Premasiri & S. Karunarathna (Eds.), Proceedings of the 5th Annual Conference on Earth Resources for National Development (pp. 5-8). Department of Earth Resources Engineering, University of Moratuwa. |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/18397 |
|
dc.description.abstract |
Onshore or offshore, ocean offers us a larger number of industrial
minerals. Monazite is one of these minerals found on beach placers in north eastern
and south western coastal region of Sri Lanka. Our study area, both onshore and
offshore from south western region, encompasses Induruwa and Polkotuwa. This
research is focused on analyzing the depositional character of monazite and to
evaluate the suitability as an ore deposit. Our methodology comprised of in-situ
sampling periodically in predetermined locations and laboratory testing for
monazite concentration by grain size analysis and observation though microscope.
Results show significant correlation between the monazite concentration in the
coastal zone and monsoonal changes. Further, accumulation of this Monazite is
significantly controlled by coastal morphology. However, the absence of monazite
in the offshore region contradicts with United Nations Revolving Fund for Natural
Resources Exploration results. In this study, we have identified three coastal areas;
Maha Induruwa, Kalutara and Polkotuwa for exploiting Monazite as an ore deposit.
In these hotspots, Monazite concentration ranges from 2.2 % to 9.1%, especially
during south western monsoon. Therefore we propose to mine them only during
south western monsoon, digging lm surface layer and extracting monazite by
collecting only <256fim fraction. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Earth Resources Engineering |
en_US |
dc.subject |
Monazite |
en_US |
dc.subject |
Kalu ganga |
en_US |
dc.subject |
offshore |
en_US |
dc.subject |
Monsoon |
en_US |
dc.subject |
Sediments |
en_US |
dc.title |
Occurrence and depositional character of monazite deposit in the offshore and coastal zone around South-West region in Sri Lanka |
en_US |
dc.type |
Conference-Full-text |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Earth Resources Engineering |
en_US |
dc.identifier.year |
2010 |
en_US |
dc.identifier.conference |
5th Annual Conference on Earth Resources for National Development |
en_US |
dc.identifier.place |
Katubedda |
en_US |
dc.identifier.pgnos |
pp. 5-8 |
en_US |
dc.identifier.proceeding |
Proceedings of the 5th Annual Conference on Earth Resources for National Development |
en_US |
dc.identifier.email |
nalin@uom.lk |
en_US |