Abstract
THE discovery of nepheline-syenite and monchiquite in Girnar, Kathiawar, announced by Dr. J. W. Evans in 1901 has, after a lapse of a quarter of a century, been followed by detailed petrographical and field investigations published in recent issues of the Records of the Geological Survey of India and the Journal of Geology respectively. The central mountain forms a dome of plutonic rocks intruded into the overlying Trap. Further investigations in Gujrat and Kathiawar have revealed a fascinating chapter in the history of post-Cretaceous igneous activity in India which is not dissimilar from the Tertiary igneous activity of Scotland. They acquire a special interest in view of the recent theory of magmatic cycles and its application by Dr. G. W. Tyrrell to the British Isles.
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MATHUR, K., DUBEY, V. Post-Cretaceous Igneous Activity in Western India. Nature 118, 769–770 (1926). https://doi.org/10.1038/118769c0
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DOI: https://doi.org/10.1038/118769c0
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