A note on the occurrence of potassium-rich trachytes in the Kaiserstuhl carbonatite complex, West Germany
Published online by Cambridge University Press: 14 March 2018
Summary
Specimens of trachyte obtained on a recent visit to the Kaiserstuhl are compared with similar potassium-rich rocks from carbonatite complexes in Africa. Two new chemical analyses are given, in which the values for alkalis (Na2O 1·21, K2O 12·63; Na2O 0·92, K2O 12·18 %) are of interest.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 36 , Issue 279 , September 1967 , pp. 334 - 341
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1967
References
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