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Plate Tectonics and Regional Stratigraphic-Metamorphic Relations in the Southern Part of the New Zealand Geosyncline

1972; Geological Society of America; Volume: 83; Issue: 8 Linguagem: Inglês

10.1130/0016-7606(1972)83[2267

1943-2674

C. A. Landis, D. G. Bishop,

earthquake and tectonic studies

Research Article| August 01, 1972 Plate Tectonics and Regional Stratigraphic-Metamorphic Relations in the Southern Part of the New Zealand Geosyncline C. A LANDIS; C. A LANDIS Geology Department, University of Otago, Dunedin, New Zealand PRESENT TEMPORARY ADDRESS (LANDIS): GEOLOGY DEPARTMENT, FRANKLIN AND MARSHALL COLLEGE, LANCASTER, PENNSYLVANIA 17604 Search for other works by this author on: GSW Google Scholar D. G BISHOP D. G BISHOP New Zealand Geological Survey, Box 5342, Dunedin, New Zealand Search for other works by this author on: GSW Google Scholar GSA Bulletin (1972) 83 (8): 2267–2284. https://doi.org/10.1130/0016-7606(1972)83[2267:PTARSR]2.0.CO;2 Article history received: 05 Oct 1971 rev-recd: 06 Mar 1972 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation C. A LANDIS, D. G BISHOP; Plate Tectonics and Regional Stratigraphic-Metamorphic Relations in the Southern Part of the New Zealand Geosyncline. GSA Bulletin 1972;; 83 (8): 2267–2284. doi: https://doi.org/10.1130/0016-7606(1972)83[2267:PTARSR]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The evolution of the New Zealand geosyncline is examined in terms of both the plate tectonics model and such geological constraints as regional metamorphic and biostratigraphic patterns and interrelations between paired sedimentary facies. A common western provenance is tentatively concluded for both major sedimentary facies belts of the geosyncline; the inner (Hokonui) belt acted as a volcanotectonic sediment trap during times of increased volcanic activity, while during periods of volcanic quiescence, quartzo-feldspathic debris from the adjacent "continental" foreland was transported across the inner belt into the outer (Torlesse) basin.In general the Torlesse rocks appear to decrease in age but increase in metamorphic grade toward the inferred western (continental) source, and it is suggested that the older (Carboniferous and Permian) rocks were never overlain by substantial thicknesses of younger strata. Development of an early extensional basin, by strike-slip displacements, in Carboniferous to Jurassic times is consistent with both this concept and with the apparently anomalous regional biostratigraphic zonation of the Torlesse rocks.Differences in geosynclinal evolution between New Zealand and California appear to be accountable in terms of the greater age of the New Zealand geosyncline and the early period of extensional growth. The Late Jurassic-Cretaceous Rangitata orogeny was an important event occurring relatively late in the depositional history of the New Zealand geosyncline, and is interpreted as representing the initiation of the present system of Pacific basin sea-floor spreading. A corresponding early extensional event is not recognized in the Jurassic-Cretaceous Coast Range geosyncline of California, the evolution of which appears to be entirely related to subduction and arc activity related to an East Pacific rise spreading axis.Differences in detailed deformational style and metamorphism between the two areas may result from differences in spreading rates and from the steeper dip of the Jurassic-Cretaceous subduction zone in New Zealand. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.