Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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On Olivines and Pyroxenes of Amjori Sill, Similipal Complex, Mayurbhanj, Orissa


Affiliations
1 Nagarjun Sagar Engineering College, Hyderabad, A.P., India
2 I.I.T., Bombay-400076, India
     

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Olivine is found to have a short range of composition. Orthopyroxenes take up a significant amount of wollastonite molecule in the later stage. Clinopyroxenes show a large scatter in the endiopside-augite field. Fractionation of Fe and Mg among the minerals characterises crystallization from a slowly cooled layered intrusive. The trend of crystallization, of all the three minerals conform to a tholeiitic parentage.
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  • On Olivines and Pyroxenes of Amjori Sill, Similipal Complex, Mayurbhanj, Orissa

Abstract Views: 188  |  PDF Views: 2

Authors

N. Chennakesavulu
Nagarjun Sagar Engineering College, Hyderabad, A.P., India
K. C. Sahu
I.I.T., Bombay-400076, India

Abstract


Olivine is found to have a short range of composition. Orthopyroxenes take up a significant amount of wollastonite molecule in the later stage. Clinopyroxenes show a large scatter in the endiopside-augite field. Fractionation of Fe and Mg among the minerals characterises crystallization from a slowly cooled layered intrusive. The trend of crystallization, of all the three minerals conform to a tholeiitic parentage.