Ariyalur District is the evidence of past geological activity for the several million years. Ariyalur formations are due to the transgression and regression of the sea which is indicated by fossiliferrous Limestone, Sandstone, Clay & Marl. The marine successions are mainly confirmed by Sillakudi, Kallankurichi, Ottakovil, Kallamedu & Ninniyur formations.
The minerals such as Limestone, Limekankar & marl available in this district are the important raw material for manufacturing of cement in eight cement plants functioning in Ariyalur District. Fireclay is used for the manufacture of Floor tiles, stoneware pipes, firebricks and in the chemical Industry. The occurrence of Lignite, Oil and gas deposits are reported at Udaiyarpalayam & Andimadam Taluk.
Apart from the above major minerals, the common use minor minerals such as ordinary gravel, Brick earth and Laterite are also available in this district. There are 73 major mineral mining leases granted for mining limestone. Eight quarry leases for fireclay and five quarry leases for gravel are granted for quarrying fireclay and gravel respectively.
For Official Contact
The Deputy Director,
Department of Geology and Mining,