Staff Profiles

kehelpannala
Prof. Wilbert Kehelpannala
Associate Professor
Department:
Geology
Office:
Block 236, Office 231
Phone:
+267 355 2537

ASSOCIATE PROFESSOR  (Structural Geology)

BSc, MPhil (Peradeniya/Sri Lanka), PhD (Mainz/Germany)

My areas of interest are:

(1) Microfabrics, Structural Geology and Tectonics of lower to middle crustal rocks. (2) Brittle structures and brittle deformation of crustal rocks, (3) Graphite mineralization in high-grade rock terrains, (4) Petrology of high-grade rocks, (5) Lower crustal processes, (6) Hydrogeology and groundwater exploration in hard rock terrains, (7) Plate tectonics and tectonics in the Indian Ocean, (8) Past plate tectonics and break-up and assembly of supercontinents, (9) Earthquakes and tsunamis and their deposits, (10) Landslides in crystalline hard rocks terrains.

Current research: 

1. Structural and metamorphic evolution of the Limpopo Belt exposed in Botswana.

2. Geological, mineralogical, metamorphic and geochemical evolution of a deformed and metamorphosed Archaean layered igneous complex in the Limpopo Belt in NE Botswana, and its associated mineralizations.

3. Causes and mechanisms of fluid-driven potassium -metasomatism and associated mineralizations in cratonic rocks of Botswana.

Selected Publications:

Kehelpannala, K.V.W., 2017. Post-metamorphic K-metasomatism of high-grade rocks – A new cconcept in geology. Journal of the Geological Society of Sri Lanka, Vol. 18, 01-19.

Osanai, Y., Sajeev, K., Nakano, N., Kitano, I., Kehelpannala, K.V.W., Kato, R., Adachi, T. and Malaviarachchi, S.P.K. 2016. UHT granulites of the Highland Complex, Sri Lanka I: Geological and petrological background. Journal of Mineralogical and Petrological Sciences, Vol. 111, 145-156.

Osanai, Y., Sajeev, K., Nakano, N., Kitano, I., Kehelpannala, K.V.W., Kato, R., Adachi, T. and Malaviarachchi, S.P.K. 2016. UHT granulites of the Highland Complex, Sri Lanka II: Geochronological constraints and implications for Gondwana correlation. Journal of Mineralogical and Petrological Sciences, Vol. 111, 157-169.

Kehelpannala, K.V.W., 2016. Intermediate to mafic gneisses of the Wanni Complex of Sri Lanka around Kandy and their deformation-controlled migmatization. In: Malaviarachchi, S.P.K. (ed.), Geological Structures along the Wanni and Highland Complex Boundary, Central Sri Lanka. Guide Book on Field Geology Workshop 20-21, August 2016. Geological Society of Sri Lanka, Special Publication 11, pp. 6-23. (ISBN: 955-8794-03-6).

Kehelpannala, K.V.W., 2016. Strongly deformed and mylonitized granulites of the Highland Complex of Sri Lanka along its boundary with the Wanni Complex. In: Malaviarachchi, S.P.K. (ed.), Geological Structures along the Wanni and Highland Complex Boundary, Central Sri Lanka. Guide Book on Field Geology Workshop 20-21, August 2016. Geological Society of Sri Lanka, Special Publication 11, pp. 21-49. (ISBN: 955-8794-03-6).

Kröner, A., Rojas-Agramonte, Y., Kehelpannala, K.V.W., Zack, T., Hegner, E., Geng, H.Y., Wong, J. And Barth, M. 2013. Age, Nd-Hf isotopes, and geochemistry of the Vijayan Complex of eastern and southern Sri Lanka: A Grenville-age magmatic arc of unknown derivation. Precambrian Research (Elsevier) 234, 288–321.

Kehelpannala, K.V.W., and Yoshida, M., 2009. Permo-Triassic ultra-high temperature metamorphism, Mesozoic magmatism and Pleistocene volcanisms and gold mineralization in the Kyushu Island, SW Japan: An excursion. (Journal of International Geoscience), Vol. 32, pp. 62-65

Kehelpannala, K.V.W., and Collins, A.S., (eds.), 2006. The role of Sri Lanka and associated continental blocks in the assembly and break-up of Rodinia and Gondwana. Journal of Asian Earth Sciences (Elsevier), Special Issue, Volume 28, Number 1, pp. 1-115.

Osanai, Y., Sajeev, K., Owada, M., Kehelpannala, K.V.W., Prame, W.K.B.N and Nakano, N., 2006. Metamorphic evolution of high-pressure and ultrahigh-temperature granulites from the Highland Complex, Sri Lanka. Journal of Asian Earth Sciences (Elsevier), Vol. 28, pp. 20-37

Kehelpannala, K.V.W.,2004. Arc accretion around Sri Lanka during the assembly of Gondwana. Gondwana Research (Elsevier), Vol. 7, pp. 1323-1328

Kröner, A., Kehelpannala, K.V.W., and Hegner, E., 2003. Ca. 750-1100 Ma magmatic events and Grenville-age deformation in Sri Lanka: relevance for Rodinia supercontinent formation and dispersal, and Gondwana amalgamation. Journal of Asian Earth Sciences, Vol. 22, 279-300

Binu Lal S.M, Kehelpannala, K.V.W.,, Satish-Kumar, M. and Wada, H. 2003. Multistage graphite precipitation through protracted fluid flow in sheared metagranitoid, Digana, Sri Lanka: evidence from stable isotope. Chemical Geology (Elsevier), Vol. 197, pp. 253-270.

Kehelpannala, K.V.W.,. and Ratnayake, N.P., 1999. Evidence for post-metamorphic metasomatism of high-grade orthogneisses from Sri Lanka. Gondwana Research, 2:167-184.

Courses:

GEO 111:   General Geology

GEO 112:   Physical Geology

GEO 201:   Structural Geology

GEO 301:   Field Geology (Co-instructor)

GEO 304:   Advanced Structural Geology

GEO 317:   Computer Applications in Geosciences (Co-instructor)

GEO 413, GEO 414:   Research Projects & Supervisor (Current Students: 9)

Previous courses at UB:

GEO 101:   Introduction to Geology

GEO 206:   Petrography

GEO 308:   Metamorphic Petrology

GEO 312:   Research Methods and Computer Applications in Geology (Co-instructor)

GEO 402:   Geotectonics

GEO 401:   Research Projects for Geology Major Students – Coordinator

GEO 406:   Research Projects for Geology Major-Major Students – Coordinator

Research Grants:

Grant RG/96/NR/02, NSF Sri Lanka (1996-1999) Determination of the composition of graphite-bearing fluids in the Earth's Crust and origin of vein graphite in Sri Lanka.
Grant RG/2005/DMM/01, NSF Sri Lanka (2005-2008) Neotectonics, brittle deformation and seismicity in Sri Lanka.

Research Collaborations:

Member and Researcher: Sri Lanka-Japan Research Group (1985-1991) 
Member and Researcher: Sri Lanka-German Research Consortium (1986-1992) 
Sri Lankan Convenor/Researcher: IGCP 368 Project on Proterozoic Events in East Gondwana
Sri Lankan Convenor/Researcher: IGCP 440 Project on Assembly and Break-up of Rodinia

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