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Peter Clift
Peter Clift is a British marine geologist and geophysicist specializing in the geology of Asia and the western Pacific. He is currently the Charles T. McCord Professor of Petroleum Geology at Louisiana State University, which he joined in 2012.
==Scientific Research==
Clift is a geologist who applies marine geophysical, geochemical and classical geological methods to understand the history of geological basins over the last 50 million years. In particular, he works on understanding the relationships between mountain building in the Himalaya and Tibet Plateau and the intensification of the Asian monsoon.〔Clift, P. D., K. Hodges, D. Heslop, R. Hannigan, L. V. Hoang, and G. Calves (2008), Greater Himalayan exhumation triggered by Early Miocene monsoon intensification, Nature Geosci., 1, 875-880, .〕 Clift has worked on evolution the Indus River, which he dated to being older than 45 million years.〔Clift, P. D. (2002), A brief history of the Indus River, in The Tectonic and Climatic Evolution of the Arabian Sea Region, edited by P. D. Clift, D. Kroon, C. Gaedicke and J. Craig, Geol. Soc. Lond. Spec. Publ., 195, Geological Society, London, pp. 237-258.〕 He has proposed that the Indus captured the four major rivers of the Punjab region into its basin after around 5 million years ago.〔Clift, P. D., and J. S. Blusztajn (2005), Reorganization of the western Himalayan river system after five million years ago, ''Nature'', 438, 1001-1003.〕 Prior to this time the Chenab, Ravi, Sutlej and Jellum Rivers would have flowed eastwards into the Ganges River, not westwards into the Indus. A project funded by the Leverhulme Trust allowed his to show that the reorganisation of rivers in SW Asia greatly predated the collapse of the Indus Valley Civilization.〔Clift, P. D., A. Carter, L. Giosan, J. Durcan, A. R. Tabrez, A. Alizai, S. VanLaningham, G. A. T. Duller, M. G. Macklin, D. Q. Fuller, and M. Danish (in press), U-Pb zircon dating evidence for a Pleistocene Sarasvati River and Capture of the Yamuna River, Geology.〕 He showed that a river, possibly the mythical Sarasvati River used to flow from the region of Chandigarh in Punjab (India) but ceased to flow after 4500 years ago, possibly due to weakening of the monsoon.
Clift has also used the sediment records of the South China Sea to propose a start to the monsoon after 24 million years ago, compared to the more popular 8 million year age.〔Clift, P. D. (2006), Controls on the erosion of Cenozoic Asia and the flux of clastic sediment to the ocean, Earth Planet. Sci. Lett., 241, 571-580.〕 He is involved with efforts to have the Integrated Ocean Drilling Program collect samples in the Asian marginal seas for monsoon studies. Clift also works with the tectonics and nature of mass recycling in subduction zones.〔Clift, P., and P. Vannucchi (2004), Controls on tectonic accretion versus erosion in subduction zones; implications for the origin and recycling of the continental crust, Rev. Geophys., 42, .〕 Prior to Louisiana he was Kilgour Professor of Geology at the University of Aberdeen from 2004 to 2012. Clift worked for the Woods Hole Oceanographic Institution as a research scientist (1995–2004), was a staff scientist with the Ocean Drilling Program at Texas A&M University (1993–1995) and was a research fellow at the University of Edinburgh (1990–1993) sponsored by BP and the Royal Society of Edinburgh.
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