Chemical and Mineralogical Changes Associated with the Laxfordian Metamorphism of Dolerite Dykes in the Scourie-Loch Laxford Area, Sutherland, Scotland
- 1 February 1966
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 103 (1) , 19-35
- https://doi.org/10.1017/s001675680005038x
Abstract
Chemical analyses of dolerites and metadolerites from the Scourie-Loch Laxford area have been made, together with analyses of amphiboles and a pyroxene from these rocks.Chemical variation within the dykes as originally emplaced has been investigated. Introduction of material during metamorphism is limited, only potassium showing a marked increase in concentration. In the least-altered dykes a relationship between degree of clouding in felspar and amount of H2O+ present is indicated.Chemical analyses and optical properties of amphiboles show no distinctive trends which could be associated with the progress of the metamorphism.Keywords
This publication has 5 references indexed in Scilit:
- Petrology of the Scourie dyke, Sutherland (Plate XVIII)Mineralogical Magazine and Journal of the Mineralogical Society, 1961
- The accuracy and precision of “rapid methods” of silicate analysisGeochimica et Cosmochimica Acta, 1956
- The pre-Torridonian metamorphic history of the Loch Torridon and Scourie areas in the North-West Highlands, and its bearing on the chronological classification of the LewisianQuarterly Journal of the Geological Society, 1950
- Clouded felspars and thermal metamorphismMineralogical Magazine and Journal of the Mineralogical Society, 1931
- The Metamorphosis of Dolerite into Hornblende-schistQuarterly Journal of the Geological Society, 1885