Magnesio-hastingsite from the anorthosites of Oddanchatram, Palni-Dindigul area, Tamil Nadu

  • P. Narasimha Rao


The characteristic mafic constituent of the anorthosites of Oddanchatram is clinoamphibole. The chemical composition, optical properties and cell parameters indicate it to be magnesio-hastingsite. It is suggested that the mineral is of primary origin and precipitated early from a hydrous gabbroic anorthosite magma that gave rise to the anorthositic suite of rocks of the area.


Olivine Calciferous Amphibole Domical Gabbroic Anorthosite Salem District 
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Copyright information

© Indian Academy of Sciences 1976

Authors and Affiliations

  • P. Narasimha Rao
    • 1
  1. 1.Department of GeologyAnnamalai UniversityAnnamalainagar

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