Dr. Stephen Pekar
Earth Institute Contact: Dr. Stephen Pekar
This project will develop high-resolution isotopic records for the early Miocene from ODP Site 1168, located on the slope of Tasmania. During the late early Miocene (18-16 Ma), large isotopic changes suggest significant climatic and ice volume changes. This study will investigate both ice volume changes and whether oceanic circulation patterns may have been a factor in these changes. Preliminary evidence suggests that variability in the strength of warm saline deep waters from the Indian Ocean may have influenced Antarctic ice volume. Site 1168 is ideally located to detect these changes in deep and intermediate water changes owing to deep water production sources originating from the Indian Ocean.