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Barium-Rich Alkali Feldspar in Basanite from Central Kachchh, Northwestern India


Affiliations
1 Geological Survey of India, Western Region, State Unit, Gujarat, Gandhinagar 382 010, India
2 Geological Survey of India, North Eastern Region, Dimapur, Nagaland 797 113, India
 

Alkali feldspar with barium (Ba) is often present in alkaline, potassic, ultrapotassic, lamprophyre and alkaline silicic volcanic rocks (refs 1–3, and references therein). It provides valuable information regarding the behaviour of Ba during crystallization of magma and its characterization. Here we report the occurrence of Ba-rich alkali feldspar (hyalophane) rim around plagioclase from basanite (Kumari Dungar, Figure 1) intrusive into the Mesozoic Bhuj sandstone in the central part of the Kachchh, northwestern Deccan Traps (NWDT), Gujarat, India.
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  • Barium-Rich Alkali Feldspar in Basanite from Central Kachchh, Northwestern India

Abstract Views: 345  |  PDF Views: 113

Authors

Md. Naushad
Geological Survey of India, Western Region, State Unit, Gujarat, Gandhinagar 382 010, India
P. V. R. Murthy
Geological Survey of India, North Eastern Region, Dimapur, Nagaland 797 113, India
Monalisa Chakra
Geological Survey of India, Western Region, State Unit, Gujarat, Gandhinagar 382 010, India

Abstract


Alkali feldspar with barium (Ba) is often present in alkaline, potassic, ultrapotassic, lamprophyre and alkaline silicic volcanic rocks (refs 1–3, and references therein). It provides valuable information regarding the behaviour of Ba during crystallization of magma and its characterization. Here we report the occurrence of Ba-rich alkali feldspar (hyalophane) rim around plagioclase from basanite (Kumari Dungar, Figure 1) intrusive into the Mesozoic Bhuj sandstone in the central part of the Kachchh, northwestern Deccan Traps (NWDT), Gujarat, India.

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DOI: https://doi.org/10.18520/cs%2Fv116%2Fi10%2F1637-1638