Browsing ISERME - 2021 by Author "Dharmaratne, PGR"

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  • Critical evaluation of industrial mineral mining methods in Sri Lanka 
    Jeewandara, JTP; Senarathna, MKT; Wickramarathna, CH; Sirisena, KMW; Hemalal, PVA; Lasantha, MML; Dharmaratne, PGR; Chaminda, SP; Jayawardena, CL [Conference-Full-text]
    Sri Lanka is rich in industrial minerals, including graphite, apatite, ilmenite, rutile, quartz, feldspar, kaolin, apatite, garnet sand, mica, calcite, and dolomite. Even though lots of mining methods are used to extract ...
  • Determination of depleted rock volume in open cast mines using photogrammetric techniques for the purpose of royalty calculation 
    Ariyarathne, RCDK; Samaraweera, SACV; Maduwantha, LSE; Insaf, MJM; Hemalal, PVA; Illankoon, IMTN; Dharmaratne, PGR; Chaminda, SP; Lasantha, MML [Conference-Full-text]
    In Sri Lanka, Geological Survey and Mines Bureau (GSMB) imposed royalty levy for aggregate production volume using an equation (indirect method) which utilises the quantity of explosives for the calculation. Since the ...
  • Exploration for potential sources of rare earth elements in Sri Lanka 
    Batapola, NM; Ratnayake, NP; Abeysinghe, AMKB; Premasiri, HMR; Rohitha, LPS; Dushyantha, NP; Ilankoon, IMSK; Dissanayake, DMDOK; Dharmaratne, PGR [Conference-Abstract]
    The global demand for rare earth elements (REEs) has been skyrocketing lately due to their excessive usage in numerous high-technologies. Therefore, the current study explores the REE potential in different geological ...
  • A study of underground and surface mining methods in Sri Lanka and its suitability assessment 
    Thanujan, T; Brinthan, K; Shivadhahini, S; Subasinghe, MAIIJ; Vettinathan, S; Dharmaratne, PGR; Hemalal, PVA; Chaminda, SP; Jayawardena, CL [Conference-Full-text]
    The demand for minerals is rapidly increasing with industrialization, urbanization, and population growth. Sri Lanka has the potential to penetrate the world market with its endowed rich base of minerals despite its small ...