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Report on the Sixth and Seventh Victoria University of Wellington Antarctic Expedition 1962-63: VUWAE 6 & 7
(a) Metasediments
(a) Metasediments.
The metasedimentary rocks were divided into two formations. The stratigraphic relationship of these are unknown.
| (i) | A series of interbedded white massive and finely bedded granular marbles, quartzo-felspathic schists, paragneiss and massive schistose metaquartzites, occur in two separate belts. An inland belt near the snout of the Taylor Glacier is 500 feet thick. The other belt, several thousand feet thick, strikes across Mt. Nussbaum in mid Taylor Valley. Bands of calc silicate minerals occur interbedded with the marble bands. No fossils were found and order of superposition could not be established. Constant strike, steep dips and repetition of sections indicate that the metasediments have been isoclinally folded. This formation is correlated with the Asgard formation distinguished to the north (McKelvey and Webb, 1962; Allen and Gibson, 1962) and the basal part of the Hobbs distinguished in the south in the Koettlitz region (Blank, Cooper, Willis - in press). |
| (ii) | Several thousand feet of coarse white and grey, massive to thinly-bedded marble occurs from Hjorth Hill north-east to Marble Point. Very subordinate pure massive metaquartzite and quartzo-felspathic schist bands are interbedded. Bands of calcsilicate minerals are commonly associated. The structure is complex, partly due to extensive intrusion or fine-grained leucocratic granite into the marble. |