Multi-disciplinary Studies of Major Events in Earth History
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Multi-disciplinary Studies of Major Events in Earth History |
• Current Research Interests
Mass Extinctions and Rapid faunal turnover events:
Paleocene-Eocene thermal maximum
Paleocene recovery and climate changes
Cretaceous-Tertiary mass extinction event
Rapid evolutionary diversification early/late Maastrichtian
transition.
Cenomanian-Turonian global anoxia event
Rates of extinction and evolutionary diversification:
Evidence for gradual or sudden extinctions
Selectivity in species extinctions
Recovery after mass extinctions
Global effects of catastrophic events:
Mass extinction patterns across latitudes
Stable isotope patterns across latitudes
Climate change across latitudes inferred from clay
mineralogy
Multiple unique or catastrophic events across the K-T transition:
Multiple spherule layers in latest Maastrichtian
of Mexico, Guatemala,
Belize and Israel. Continued search for these events
elsewhere.
Multiple iridium and PGE anomalies in early Danian
of Mexico
Haiti and Guatemala
Maastrichtian Paleoclimate:
Long-term climate changes -- deep sea to marginal
marine
First maximum cooling in early Maastrichtian (71..3
Ma)
Latest Maastrichtian short-term warm event
Late Cretaceous climate and sea level fluctuations:
Tunisia, Egypt, Morocco, Madagascar, Guatemala,
Belize, Mexico
Cenomanian-Turonian Event:
Nature and geographic distribution of ocean anoxia
Effects on marine plankton
Climate and sea-level fluctuations
High resolution time control
• Current Research Team Members
Gerta Keller, Professor, Princeton University
Major interests: micropaleontology (planktic foraminifera),
stratigraphy, paleoceanography, paleoclimate, sea-level changes
Thierry Adatte, Research Associate, University of Neuchatel,
Switzerland.
Major interests: whole rock and clay mineralogy, geochemistry,
sequence stratigraphy
Wolfgang Stinnesbeck, Professor, University of Karlsruhe, Germany.
Major interests: paleontology (macrofossils, ammonites),
sedimentology, sedimentary environments, regional stratigraphy
Doris Stüben, Professor, University of Karlsruhe, Germany
Major interests: geochemistry, trace minerals, stable isotopes
Zsolt Berner, Research Associate, University of Karlsruhe, Germany.
Major interests: stable isotope geochemistry
Utz Kramer, Research Associate, University of Karlsruhe, Germany.
Major interests: Trace elements
Valeria Luciani, University of Ferrara, Italy
Major interests:Planktic foraminiferal stratigraphy,
paleoecology, paleoenvironment.
Abdel Aziz Tantawy, Assistant Professor, South Valley University,
Aswan, Egypt.
Major interests: calcareous nannofossil stratigraphy, paleoenvironment.
• Princeton Graduate Students in Paleo and Sedimentary Environments
Current: Brian Gertsch
Topics: Sedimentology, Mineralogy and Geochemistry of major Environmental Changes: Cenomanian Anoxic Events, Campanian-Maastrichtran climate changes, End-Cretaceous Mass extinction.
Former Graduate Students:
