The Forty Fours, a small group of islets east of Chatham Island, consist of hard, sparsely stratified feldsarenite sandstone belonging to metamorphic textural zone I. The sandstone is correlated with the “Matarakau Greywacke” of Chatham Island and the Torlesse terrane of Canterbury and Wellington. It is composed predominantly of granodiorite-derived detritus. © 1978 Taylor & Francis Group, LLC.
CITATION STYLE
Andrews, P. B., Campbell, H. J., & Watters, W. A. (1978). The Forty Fours: The most easterly outcrop of Mesozoic basement in the New Zealand region (Note). New Zealand Journal of Geology and Geophysics, 21(5), 649–652. https://doi.org/10.1080/00288306.1978.10424092
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