Abstract:

The Cenozoic rifting and exhumation is very common in West Antarctica and Transantarctic Mountains, though it is rarely documented from East Antarctica. However, based on apatite fission track ages and thermal histories modeled for samples from Larsemann Hills, Prydz Bay, East Antarctica, we conclude that the Cenozoic uplifting and extension may have occurred in the coastal edge of East Antarctica, at 49.8±12 Ma, which is later than the onset of the rifting system (~60-50 Ma), developed in West Antarctica. ...

Key words:

AFT thermochronology, exhumation, normal faulting, Cenozoic, Larsemann Hills, East Antarctica,