• The Purimetla gabbros, Prakasam District, Andhra Pradesh, India

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/094/03/0305-0313

    • Keywords

       

      Gabbro; tholeiite; corona; diffusion; differentiation index; Andhra Pradesh(Purimetla/Prakasam District)

    • Abstract

       

      Gabbros at Purimetla occur in close association with the alkaline pluton. Petrography and petrochemistry of these gabbros indicate their tholeiitic nature. Chemical variation of these tholeiites suggests that an initial undersaturated tholeiitic magma yielded oversaturated fractions in the final stages of differentiation. Their regional distribution suggests that basic magmatism preceded the emplacement of the alkaline rocks in the Prakasam alkaline province.

    • Author Affiliations

       

      J Ratnakar1 2 C Leelanandam1

      1. Geology Department, Osmania University, Hyderabad - 500007, India
      2. P.G. College of Science, Saifabad, Hyderabad - 500004, India
    • Dates

       
  • Journal of Earth System Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.