The purpose of the expedition was to examine in detail the pre-Cenozoic geology of the Ford Ranges which comprise the main area of exposed rock in western Marie Byrd Land and the type area of two of the four major rock groups, the Swanson Group and the Ford Granodiorite. Sites visited and examined include Mt Morgan, Wells Ridge, Ranney Nunatuk, Mt Crabtree in Swanson Mountains, Mt Passel, Mt ... Richardson in the Fosdick Mountains, Breeding Nunatak, Mt Jones in the Clark Mountains, the Mackay Mountains, the Allegheny Mountains, Bailey Ridge and east of Mt Warner. Extensive sedimentological and structural measurements were made on the Swanson Group, the intrusive history of the two granite complexes (Ford Granodiorite and the complex Byrd Coast Granite) were examined and described and rock samples were collected for radiometric dating to determine the time of sedimentation and the time of deformation of the Swanson Group and the times of intrusion and deformation of the Ford and Byrd Coast rock units. From the information obtained, the basement geology of Marie Byrd Land formation was evaluated.
All remaining samples and thin sections of all the analysed rocks are kept in the University of Canterbury geological rock collection. Search on the PETLAB database for information on samples. For more information, please contact the investigator or the department.
Adams, C.J. Andrews, P.B. Braddock, P. Bradshaw, J.D. Geology of Ford Ranges, Western Byrd Land, Antarctica. New Zealand Antarctic record 2(1): 30, 1979.
Bradshaw, J.D. Andrews, P.B. Field, B.D. Swanson Formation and related rocks of Marie Byrd Land and a comparison with the Robertson Bay Group of northern Victoria Land. in: Antarctic earth science.Oliver ... R.L. James P.R. Jago J.B. (eds) Canberra: Australian Academy of Science. 1983. pp.274-279
Weaver, S.D. Bradshaw, J.D. Adams, C.J. Granitoids of the Ford Ranges, Marie Byrd Land, Antarctica. in: Geological evolution of Antarctica; proceedings of the Fifth International Symposium on Antarctic Earth Sciences, Cambridge, 1987.Thomson M.R.A. Crame J.A. Thomson J.W. (eds) Cambridge: Cambridge University Press. 1991. pp.345-351
Bradshaw, J.D. 2007. The Ross Orogen and the Lachlan Fold Belt in Marie Byrd Land, Northern Victoria Land and New Zealand: Implications for the tectonic setting of the Lachlan Fold Belt in Antarctica. USGS OF-2007-1047, short research paper 059, 2007.
Adams, C.J., 1986. Geochronological studies of the Swanson Formation of Marie Byrd Land, West Antarctica, and its correlation with northern Victoria Land, East Antarctica and South Island, New Zealand. New Zealand Journal of Geology and Geophysics, 29: 345-358.
Adams, C.J., 1987. Geochronology of granite terranes in the Ford Ranges, Marie Byrd Land, West Antarctica. New Zealand Journal of Geology and Geophysics, 30: 51-72.
Bradshaw, J.D. Dalziel, I.W.D. Di Venere, V. Mukasa, S. Pankhurst, R.B. Storey, B.C. Weaver, S.D. The southern rim of the Pacific: new work on the Pre-Cenozoic rocks of Marie Byrd Land. in: Sixth International Symposium on Antarctic Earth Sciences. Tokyo: National Institute for Polar Research. 1991. pp.80-82
Bradshaw, J.D. Pankhurst, R.J. Weaver, S.D. Storey, B.C. Muir, R.J. Ireland, T. New Zealand superterranes recognized in Marie Byrd Land and Thurston Island. in: Antarctic region: geological evolution and processes; proceedings of the 7th Symposium on Antarctic Geological Sciences, Sienna, Sept 10-15, 1995.Ricci C.A. (ed) Sienna: Terra Antartica Publications. 1997. pp.435-436
Pankhurst, R.J. Weaver, S.D. Bradshaw, J.D. Storey, B.C. Ireland, T.R. Geochronology and geochemistry of pre-Jurassic superterranes in Marie Byrd Land, Antarctica. Journal of geophysical research 103(B10): 2529-2547, 1998.
Weaver, S.D. Storey, B.C. Pankhurst, R.J. Mukasa, S.B. Di Venere, V.J. Bradshaw, J.D. Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity. Geology 22(9): 811-814, 1994.