The collection consists of over 1 tonne of rock samples from the Theron Mountains, with an emphasis on the mainline of the enscarpment, which was reached by climbing the scree slopes at the base of the cliffs or by traversing the skyline, during the 2004/2005 field season.

Rock samples were collected from the northern LeMay Range, southern Douglas Range and the Lully Foothills of Alexander Island during the 2004-2005 field season, and transferred to the Open University (OU) via the British Antarctic Survey. Samples were stored in the OU rock store during preparation for isotopic work.