Laser-derived, particle size data from CRP-2/2A: implications for sequence and seismic stratigraphy
Gravel-free, high-resolution (1-metre spacing, 32 channel) particle size data from the
CRP-2/2A drill core indicate that many of the diamictites were likely deposited from floating
ice. Textural dislocations occur at most sequence boundaries and provide independent
corroboration of the sequence stratigraphic interpretation. Likewise the data largely support the
correlation drawn (Fielding et al., this volume) between the sequence stratigraphic cycles and
the regional seismic stratigraphy (an alternative correlation to Reflector ‘f’ is also suggested).
The gravel-free data appear to be reflecting predominantly regional (global?) forcing with some
possible local effects, and long-term trends persisting through gravelly textural dislocations.
Authors: Woolfe, K.J., Stewart, L.K., Fielding, C.R., Lavelle, M.
1 January, 2000
Terra Antarctica / 7