Clastic clay mineralogy

Curtis, C.D. (1990) Aspects of climatic influence on the clay mineralogy and geochemistry of soils, lateosols and clastic sedimentary rocks. J. Geol. Soc., London, 147, 351-357. 

Lynch F. L. (1997) Frio shale mineralogy and the stoichiometry of the smectite-to-illite reaction— the most important reaction in clastic sedimentary diagenesis. Clays Clay Mire 45, 618-631. 

From these mineralogical and geochemical data we may reconstruct the formations of the Upper Silurian as potential source rocks for hydrocarbons. The widespread presence of large proportions of iUitic-kaolinitic clay minerals indicates that the Silurian sedimentation took place under relative tectonic stability and that the supply of the clastic material came from a peneplaned region with humid climate resulting in a weathering zone of illito-kaolinitic composition. 

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