The Cretaceous Thermal Maximum is the warmest period in Earth’s history in the last ~200 million years. Sea surface temperature data (from geochemical studies of planktic foraminifera and organic biomarkers) suggest that tropical temperatures exceeded 35°C. These temperatures were 5-7°C …
Deep Sea Sediments and Microfossils
As a professional fossil watcher, it is a particular delight to explore deep sea mud–the stuff is literally made out of fossils! Of course, they are rather small (a few microns to a few millimeters), but there is lots of …
My U-Tube moment at the Bremen Core Repository
The University of Bremen has one of the very best core repositories for scientific study of the deep ocean anywhere on Earth. I spent a week there, scaring my hands and getting blisters in the name of ocean science. The …
Drilling Paleogene Sediment Drifts of Newfoundland
In summer 2012, I (and co-chief, Paul Wilson) led IODP Expedition 342 to drill the SE Newfoundland Ridge—a set of sediment drifts of Cretaceous and Paleogene age near the “Titanic Site” where the Titanic collided with an iceberg and sank …
Bocas del Toro Field Work
Bocas del Toro, Panama–coring modern reefs to reconstruct the last 1000 years of reef ecosystem structure and decline
Reef fish teeth as indicators of pre-European fishing impacts in the Caribbean
Post doctoral student Katie Cramer and I are working with Smithsonian Tropical Research Institution scientist, Aaron O’Dea, to collect large-diameter sediment cores in reefs from Bocas del Toro, Panama and the Mesoamerican Reef in Belize. To this end, I built …
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