The Sea Floor

Among outstanding paradigms within Seibold's many contributions (including geologic education) one might emphasize his insights regarding the role of exchange between marginal basins and the open sea in determining the deposits accumulating in shelf basins. He assigned an estuarine-type exchange to black shale sedimentation and an anti-estuarine type to carbonate deposits. Both types of sediment are prominent in the geologic record (and are conspicuous in the Jurassic of southern Germany, his original training ground). Significantly, black shales are commonly a source for hydrocarbon products, while carbonates often serve as reservoir rocks. Obviously, both rock types help define our time in human history. It is typical for Seibold that he thought we should know about their origin.


Wolfgang Berger is an acclaimed researcher in micropaleontology, marine geology, and oceanography. He has published over 200 research articles and several books on a broad array of topics in oceanography and on climate change. Berger earned numerous medals and prizes during his career, among others the Bigelow Medal, the Humboldt Award, and the Steinmann Medal.


Berger earned in 1961 his Vordiplom degree in geology at the University of Erlangen and in 1963 his master's degree in geology at the University of Colorado in Boulder. In 1968 he received his PhD in oceanography from the University of California, San Diego (UCSD). From 1968 to 1970 he did research at the UCSD's Scripps Institution of Oceanography, and in 1970/1971 he was an Assistant at the Geological Institute of the University of Kiel. In 1971 he became an assistant professor, in 1974 an associate professor, and then in 1981 a professor at the Scripps Institution, where he was in 1996/1997 the interim director. In 1997 Berger became the director of the California Space Institute in San Diego.

His research is especially concerned with the ecology of planktonic foraminifera and the reconstruction of the climate and the marine environment of the Cenozoic.