Metamorphism in the Southern Alps of New Zealand. Bulletin of the AMNH ; v. 123, article 4

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dc.contributor.authorMason, Brian Harold, 1917-en_US
dc.date.accessioned2005-10-06T15:07:51Z
dc.date.available2005-10-06T15:07:51Z
dc.date.issued1962en_US
dc.descriptionp. 215-247, [9] p. of plates (1 folded) : ill., maps ; 27 cm.en_US
dc.descriptionIncludes bibliographical references (p. 245-247).en_US
dc.description.abstract"The Southern Alps of New Zealand are a mountain range that forms the backbone of the South Island of New Zealand. The range extends in a northeast to southwest direction from about latitude 42 S. to latitude 45 S. and is continued both north and south by subsidiary ranges; it is bounded on the west by the Alpine Fault. Most of the rocks are graywackes and argillites and their metamorphosed equivalents. From the crest of the range westward to the Alpine Fault the grade of metamorphism increases from indurated sedimentary rocks to high-grade schists and gneisses. Four zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Oligoclase zones. The mineralogy and petrology of these zones are described and illustrated by analyses of their rocks and their constituent minerals. The sediments were deposited in a geosyncline in Triassic (and possible Permian and Jurassic) times. An early Cretaceous orogeny resulted in intense folding, followed by regional metamorphism. Erosion reduced the region to a low level by the end of the Cretaceous, and much of it was subjected to a marine transgression in early Tertiary times. Renewed uplift began in the Miocene and reached its peak in strong vertical movements on the Alpine Fault at the end of the Tertiary period"--P. 217.en_US
dc.format.extent21719244 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/1261
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York : [American Museum of Natural History]en_US
dc.relation.ispartofseriesBulletin of the American Museum of Natural History ; v. 123, article 4en_US
dc.subject.lccQH1 .A4 vol.123, art.4, 1962en_US
dc.subject.lcshMetamorphism (Geology) -- New Zealand -- Southern Alps.en_US
dc.subject.lcshGeology -- New Zealand -- Southern Alps.en_US
dc.subject.lcshPetrology -- New Zealand -- Southern Alps.en_US
dc.titleMetamorphism in the Southern Alps of New Zealand. Bulletin of the AMNH ; v. 123, article 4en_US
dc.title.alternativeMetamorphism in Southern Alpsen_US
dc.typetexten_US

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Bulletin of the American Museum of Natural History