Seasonal and tidal influence for water quality changes in coastal Bolgoda Lake system, Sri Lanka

AS Ratnayake, NP Ratnayake, Y Sampei… - Journal of Coastal …, 2018 - Springer
The variation in physicochemical properties is a notable feature to identify hydrodynamic
and biogeochemical processes in coastal aquatic systems. In this study, the spatial and …

Middle to late Holocene environmental changes in the depositional system of the tropical brackish Bolgoda Lake, coastal southwest Sri Lanka

AS Ratnayake, Y Sampei, NP Ratnayake… - Palaeogeography …, 2017 - Elsevier
Abstract The tropical Bolgoda Lake is one of the largest lagoonal estuaries in Sri Lanka.
Organic constituents in this lake were investigated using 28 surface sediments, three cores …

Play distribution and the hydrocarbon potential of the Mannar Basin, Sri Lanka

E Kularathna, H Pitawala, A Senaratne… - Journal of Petroleum …, 2020 - Springer
Abstract The Mannar Basin is a frontier failed rift basin between India and Sri Lanka. The Sri
Lankan part has an area exceeding 42,000 km 2. Although the recent two gas discoveries …

Characterization of organic matter and depositional environment of the Jurassic small sedimentary basins exposed in the northwest onshore area of Sri Lanka

AS Ratnayake, Y Sampei - Researches in Organic Geochemistry, 2015 - jstage.jst.go.jp
The Jurassic sediments in two small basins formed on the Precambrian metamorphic terrain
of Sri Lanka, which had been located in the eastern Gondwanaland in mid-latitudes of the …

Burial and thermal history modelling of the Mannar Basin, offshore Sri Lanka

U Premarathne, N Suzuki, N Ratnayake… - Journal of Petroleum …, 2016 - Wiley Online Library
The Mannar Basin is a Late Jurassic–Neogene rift basin located in the Gulf of Mannar
between India and Sri Lanka which developed during the break‐up of Gondwana. Water …

Assessment of hydrocarbon generation potential and thermal maturity of the offshore Mannar Basin, Sri Lanka

AS Ratnayake, CW Kularathne, Y Sampei - Journal of Petroleum …, 2018 - Springer
Abstract The Mannar Basin is an under-explored offshore sedimentary basin in terms of
petroleum geology. The Cretaceous to Paleogene cutting samples were collected in three …

Crustal structure and subsidence history of the Mannar basin through potential field modelling and backstrip** analysis: Implications on basin evolution and …

A Singh, GS Rao - Journal of Petroleum Science and Engineering, 2021 - Elsevier
The Mannar basin is a hydrocarbon-bearing rift basin located between the southeast Indian
and the western Sri Lanka margins. In the present study, an integrated analysis of potential …

Organic geochemical evaluation of contamination tracers in deepwater well rock cuttings from the Mannar Basin, Sri Lanka

AS Ratnayake, Y Sampei - Journal of Petroleum Exploration and …, 2019 - Springer
Geochemical data from rock-cutting samples can give rise to faulty interpretations due to
contamination from drilling fluids used in modern deepwater petroleum exploration. In this …

Late Cretaceous to Miocene paleoclimatic changes in the Indian Ocean: insights from the deepwater Mannar Basin, Sri Lanka

AS Ratnayake - Geo-Marine Letters, 2021 - Springer
Abstract The geology of Sri Lanka captures one of the longest and most complete records of
Jurassic to Miocene tectonic evolutions from the mid-latitudes of the southern hemisphere to …

Current status of hydrocarbon exploration in Sri Lanka

AS Ratnayake, Y Sampei… - International Journal of …, 2017 - inderscienceonline.com
The offshore investigations in Sri Lanka have identified three oceanic basins (ie, the
Mannar, Cauvery and Southern Basins) for possible oil and gas generation. These …