Peter Ziegler

Peter Alfred Ziegler (2 November 1928 – 19 July 2013) was a Swiss geologist, who made contributions to the understanding of the geological evolution of Europe and the North Atlantic borderlands, of intraplate tectonics and of plate tectonic controls on the evolution and hydrocarbon potential of sedimentary basins. Ziegler's career consists of 33 years as exploration geologist with the petroleum industry, 30 of which with Shell, and 20 years of university teaching and research.

Life and work

Born in Winterthur, Ziegler took a PhD degree at the University of Zurich in spring 1955 and immediately joined the petroleum industry. Following three years of fieldwork and well sitting in Israel, Madagascar and the Algerian Sahara with American and French oil companies, he joined Shell Canada in Calgary. For six years he was engaged in the exploration of the Cordilleran foothills of British Columbia, the Northwest Territories and the Yukon, as well as of the Pacific shelf. This involved extensive helicopter-supported fieldwork. In view of a growing family, he converted from a structurally oriented field-geologist to a more sedentary, stratigraphic trap hunting subsurface-geologist and chalked-up his first natural gas discoveries in the Alberta down-dip reef belt. After guiding an airborne excursion through the Cordillera during the 1967 Devonian Symposium of Calgary, his guidebook, summarizing "The Development of Sedimentary Basins in Western and Arctic Canada", was published by the Alberta Society of Petroleum Geologists in 1969.

Ziegler was transferred to Shell International in the Netherlands on 1 January 1970, where he supervised Shell's exploration activities in the North Sea area. As the North Sea success story unfolded, Shell and its partners were rewarded with numerous important oil and gas discoveries, including the giant Brent, Statfjord, and Troll fields.