Start Date
27-11-2023 3:45 PM
End Date
27-11-2023 5:00 PM
Access Type
Open Access
Abstract
Sri Lanka records one of the longest and most complete tectonic evolution from the mid-latitude in the southern hemisphere (during the Jurassic) to the equatorial northern hemisphere. Therefore, onshore and offshore sedimentary basins in Sri Lanka provide the natural laboratory to reconstruct paleoenvironmental and paleoclimatic during its northward voyage from Gondwana to Asia. Prof. Ratnayake will explain geological evidence for arid climate during the Early Campanian, the separation of the Laxmi Ridge-Seychelles and Seychelles from the Indian plate, sea-level regression during the Late Campanian to Late Maastrichtian, the mass extinction of coccolithophores/foraminifera at the Late Maastrichtian, Late Paleocene to the Early Oligocene weak oceanic circulation under a greenhouse climate, the development of the present- day South Asian monsoon system during the Middle-Upper Miocene, etc.
Biography
Prof. Amila Ratnayake completed his B.Sc.(Sp) degree in Geology at University of Peradeniya and completed his M.Sc. and Ph.D. at Shimane University, Japan. He is the current Head of the department of Applied earth Sciences at Uva Wellassa University. Prof. Amila specialized in Geology and carries out multidisciplinary research in several subfields such as marine geology, petroleum geology, Earth surface processes, and economic geology. According to the AD Scientific Index, he ranked 5th in the field of Earth Sciences in Sri Lanka. He published 49 indexed peer-reviewed journal articles and obtained 1 patent. He received more than 1000 citations for his publications. He is the first Sri Lankan participant in the International Ocean Discovery Program (IODP) Expedition.
Additional Links
ORCID
Gondwana to Asia from Jurassic to Holocene: Tectonics, Marine Geology, Paleoclimatology, Petroleum Geology Sedimentology
Sri Lanka records one of the longest and most complete tectonic evolution from the mid-latitude in the southern hemisphere (during the Jurassic) to the equatorial northern hemisphere. Therefore, onshore and offshore sedimentary basins in Sri Lanka provide the natural laboratory to reconstruct paleoenvironmental and paleoclimatic during its northward voyage from Gondwana to Asia. Prof. Ratnayake will explain geological evidence for arid climate during the Early Campanian, the separation of the Laxmi Ridge-Seychelles and Seychelles from the Indian plate, sea-level regression during the Late Campanian to Late Maastrichtian, the mass extinction of coccolithophores/foraminifera at the Late Maastrichtian, Late Paleocene to the Early Oligocene weak oceanic circulation under a greenhouse climate, the development of the present- day South Asian monsoon system during the Middle-Upper Miocene, etc.