Cosmogenic nuclide data for glacial erratics - Marble Hills, Ellsworth Mountains, Antarctica

This data set consists of cosmogenic nuclide concentrations in glacial erratics
from the Marble Hills, a group of peaks in the southern Heritage Range,
Antarctica. Approximately one-third of these samples have Holocene exposure
ages, indicating that they have been exposed by thinning of the West Antarctic
Ice Sheet since the last glacial maximum (LGM). The remainder of the samples
contain high concentrations of cosmogenic Be-10 and Al-26, indicating more
prolonged exposure, either at their present locations or at a source further
inland.

The primary data are sample locations, correction factors relating to
calculation of exposure ages, and concentrations of the cosmic-ray-produced
nuclides Be-10 and Al-26, measured in quartz. We list conventional exposure
ages for the samples, but have also provided sufficient information to allow
the ages to be recomputed if nuclide production rates or correction factors are
revised in future.