Petrochemistry of the Tokatoka igneous rock suite, Northland
Open Access
- 1 October 1967
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Geology and Geophysics
- Vol. 10 (4), 903-922
- https://doi.org/10.1080/00288306.1967.10423199
Abstract
Fourteen analyses representative of Manukau Breccia (Otaian) rock types in the Tokatoka district are presented and discussed. Chemical features of the suite are high Al203, magnesia to total iron ratio, and alkali-lime index, and low TiO2 and K2O: (Na20 + K2O) ratio; the range in silica is from 41–69%. Basic members show mixed alkaline, tholeiitic, and calc-alkaline affinities.Keywords
This publication has 6 references indexed in Scilit:
- Olivine nodules in olivine nephelinite from Tokatoka, NorthlandNew Zealand Journal of Geology and Geophysics, 1965
- Origin of Basalt Magmas: An Experimental Study of Natural and Synthetic Rock SystemsJournal of Petrology, 1962
- Composition and origin of basaltic magma of the Hawaiian IslandsGeochimica et Cosmochimica Acta, 1955
- AVERAGE CHEMICAL COMPOSITIONS OF SOME IGNEOUS ROCKSGSA Bulletin, 1954
- The geochemistry of some igneous rock seriesGeochimica et Cosmochimica Acta, 1953
- The distribution of trace elements during strong fractionation of basic magma—a further study of the Skaergaard intrusion, East GreenlandGeochimica et Cosmochimica Acta, 1951