PETROGRAPHIC CHARACTERISTICS OF THE JOGIPATTI CARBONATITES OF THE SAMALPATTI COMPLEX, TAMIL NADU, SOUTHERN INDIA

  • Unique Paper ID: 162837
  • Volume: 10
  • Issue: 11
  • PageNo: 164-168
  • Abstract:
  • Carbonatites are unusual igneous rocks that are primarily composed of carbonate minerals, such as calcite, dolomite, and siderite, rather than silicates like most other igneous rocks. Calcio-carbonatites with calcite as main component that is subdivided into coarse-grained sövite and medium to fine-grained alvikite. Magnesio-carbonatites, also called beforsite and are mainly composed of dolomite. Ferro- and natro-carbonatites are either iron-rich or are composed of sodium or potassium carbonates. The geological setting of the Samalpatti carbonatites, which are associated with the Koratti fault system. The Jogipatti area of the Samalpatti Complex, which belongs to the Southern Indian Granulite Terrain. Geologically, the Samalpatti Complex is classified as Neo-Proterozoic in age. Most of the carbonatite rock bodies occur in drilled wells, small lensed bodies, and outcrops. Carbonatite exposures are limited. dolomite emerges as the dominant mineral, enveloped by iron oxide material. Calcite mineral is distinctly surrounded by iron-rich material.

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