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Tuatara: Volume 15, Issue 3, December 1967

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 generatio…

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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).

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).

Previous Figure | Table of Contents | Figure in Context | Next Figure