Geological mapping 1:50,000 in the Thundergut area (Olympus and Asgard Range, Taylor Glacier), South Victoria Land

Three specific problems were targeted during this work. Initial mapping found the presence of two granitoid plutions above the lower dolerite sill but the contact relations at this altitude were obscured by the Heimdall Glacier and moraine deposits. Mapping lower on the southern wall of the Wright Valley aimed at observing the contact of these two plutons and determining their relative ages.

The second aim of the mapping was to tie the Bull Pass drillsite core into the intrusive sequence. This would allow samples of this core to be used for geochemical and dating analysis when funding permits. The third aim was to try to tie the U-Pb date from an Olympus Granite Gneiss sample near the Connor Glacier into the intrusive sequences and gain further absolute age control on geologic events in Southern Victoria Land.