Supplemental data.docx

Text to accompany geological maps that are supplemental to 'Re-visiting the structural and glacial history of the Shackleton Glacier region of the Transantarctic Mountains, Antarctica'. (New Zealand Journal of Geology and Geophysics) <br> Supplemental data: These maps of the Gondwana succession (Devonian to Triassic) are based on a limited distribution of stratigraphic measurements (see Collinson and Elliot 1986), PGC/USGS aerial photograph interpretation, and field photographs. The interpreted geology is superimposed on USGS 1:250,000 topographic maps (Cloudmaker, Shackleton Glacier and Liv Glacier sheets), which have a relatively small number of occupied survey stations and intersected points, and a 200 m contour interval. These supplemental maps are also archived as part of the SCAR digital geological map of Antarctica (Cox et al. 2019). Illustrated faults are based on: 1) field observations, 2) observed offsets visible on air photos, 3) elevation differences of 200-300 m between adjacent outcrops of key horizons (e.g. the Buckley-Fremouw contact), 4) elevation differences of stratigraphic units of 750+ m determined from the topographic maps and REMA data. Fig. S1. Geological map of the Ramsey Glacier area. Fig. S2. Geological map of the Anderson Heights area. Fig. S3. Geological map of the Transantarctic Mountains front from Mount Wade to Mount Smithson, with an inset of the Cape Surprise area. The Cape Surprise region is modified from Barrett (1965) and Miller et al. (2001). Inferred fault north of Mount Munson from Miller et al. (2010). Dotted lines on the areas off the southern (lower) edge of the Shackleton Glacier topographic map are contours taken from the adjacent Liv Glacier topographic map. Fig. S4. Geological map of the Mount Heekin, Mount Rosenwald, and Bennett Platform region. Sirius Group locations are from Hambrey et al. (2003). The lateral extent of the Sirius Group (Bennett Platform Formation) at Matador Mountain was not reported in Hambrey et al. (2003). Fig. S5. Geological map of the lower McGregor Glacier region. Fig. S6. Geological map of the upper McGregor Glacier region. Fig. S7. Geological map of the upper Shackleton Glacier area (modified from fig. 3 in Elliot and Collinson 2022). Sirius Group locations are taken from McGregor (1965), Hambrey et al. (2003), and Elliot and Collinson (2022). The approximate location of the glacigenic strata illustrated by McGregor (1965, figs. 3, 4) is based on the observation that the Roberts Massif is visible in the background of his fig. 3.