Jan Veizer

Ján Veizer (born June 22, 1941) is the Distinguished University Professor (emeritus) of Earth Sciences at the University of Ottawa and Institute for Geology, Mineralogy und Geophysis, of Bochum Ruhr University. He held the NSERC/Noranda/CIFAR Industrial Chair in Earth System Isotope and Environmental Geochemistry until 2004. He is an award-winning isotope geochemist; his research interests have included the use of chemical and isotopic techniques in determining Earth's climatic and environmental history.

Born in Pobedim, Slovakia, Veizer has received the Killam Award (Canada Council, 1986), the 1987 W.W. Hutchison Medal for young individuals making exceptional advances in Canadian earth science research; the 1991 Willet G. Miller Medal for outstanding contributions in geology; the 1992 Gottfried Wilhelm Leibniz Prize,which carried a 1.55 million euro value, awarded for understanding of the geochemistry of sediments; the 1995 Logan Medal which is the Geological Association of Canada's highest honour [1]; the 2000 Bancroft Award for contributions furthering the public understanding of the Earth sciences.

During his career, Veizer oversaw the collection of a series of more than 4,500 measurement data of oxygen isotopes in calcite and aragonite shells used to build up climate and sedimentary data of the whole Phanerozoic based on tropical sea surface temperatures.

...
Wikipedia