Diagrammatic Representation of the Geology in the Dry Valleys, McMurdo Sound, Antarctica. — FIG. 1: Deposition of Skelton Group sediments in a geosyncline of Precambrian to Cambrian age, with subsequent igneous intrusion. — FIG. 2: Ordovician Orogeny — folding and metamorphism of the sediments with contemporaneous intrusion of a syntectonic granodiorite batholith (crosses a). Post-tectonic intrusion of a granite of sheet-like form (carets b), with lamprophyre and porphyry dykes of two generations (black lines)
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| Online Access: | http://www.nzetc.org/tm/scholarly/Bio15Tuat03-fig-Bio15Tuat03_121a.html |
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