Weddell and Scotia Sea
Cenozoic history of the ridge that borders the Weddell and Scotia Sea
Hypotheses relating to the impacts of the opening of Drake Passage and the Scotia Sea that established the world’s largest ocean current, the Antarctic Circumpolar Current (ACC), cannot be fully tested because we do not know the configuration of the continental fragments that were originally between South America and Antarctica at the time of breakup (circa 50 Ma) and their uplift and burial histories during and after breakup.
In collaboration with colleagues at the British Antarctic Survey (BAS) I use a combination of apatite fission track and U-Th-He thermochronometry and detrital zircon U-Pb geochronology to constrain pre-break up locations and rock uplift histories of South Georgia and South Orkney. [sb attached to penguin photo]