Detailed correlations of ancient glacial deposits, based on temporal records of carbon and strontium isotopes in seawater, indicate four (and perhaps five) discrete ice ages in the terminal Proterozoic Eon. The close and repeated stratigraphic relationship between C-isotopic excursions and glaciogenic rocks suggests that unusually high rates of organic carbon burial facilitated glaciation by re...

The goal of the Stratigraphy project of the STRATAFORM program is to understand the creation of the preserved stratigraphic record on continental shelves and slopes as the product of physical processes acting with spatial and temporal heterogeneities. I am using numerical models to provide insight into the formation and preservation of stratigraphic sequences at margins. My goal is to obtain a ...

When dealing with a large stratigraphic data set, it is difficult to get a general idea of the excavation’s main features and their chronological sequence because the Harris diagram will become very big. It is hard to understand a diagram consisting of hundreds of equally sized boxes, if no hints are given how to structure them. Large Harris diagrams are seldom published owing to the high costs...

A key goal of the STRATAFORM program has been to use observations of sedimentary processes operating on short time scales to improve our understanding of the development of stratigraphic sequences over time scales of 10 10 years. Tremendous progress in modeling sedimentary processes has been made under the program. However, further work is needed to achieve the goal of a processbased model for ...

In the context of STRATAFORM and EuroSTRATAFORM, the long-term goal of this project is to contribute toward simultaneously understanding (i) short term oceanic processes that erode, transport and deposit sediment in the margin system and (ii) the creation of the preserved stratigraphic architecture, seafloor morphology and sediment facies on continental margins. In order for models at such disp...

The assessment of age uncertainty in stratigraphically aligned records is a pressing need in paleoceanographic research. The alignment of ocean sediment cores is used to develop mutually consistent age models for climate proxies and is often based on the δO of calcite from benthic foraminifera, which records a global ice volume and deep water temperature signal. To date, δO alignment has been p...