CSIR (Council of Scientific & Industrial Research) Earth Sciences Earth Materials-Rocks Study Material (Page 1 of 4)

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Rocks

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Introduction

  • The earth is composed of different concentric layers, where one layer differs from the other. The uppermost layer of the earth is called the ‘Lithosphere’ (Lithos- rock) . Thus, this layer is also called the ‘Rock sphere’ .
  • Thus, Rock constitutes the most solid materials of the earth. The smallest component of t…

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Carbonate Precipitation; Classification of Carbonates, Depositional Environments, Diagensis

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Carbonate Precipitation

  • The mineralogy of carbonate rocks has a strong influence on their precipitation, preservation, and alteration. There are significant amounts of three minerals: aragonite, calcite, and dolomite.
  • In sea water (and many pore waters) , the order of solubility is aragonite > calcite > dolomite.
  • Almost all marine surface waters are sup…

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