The Eocene Nisai Formation in the Kakarkhorasan Basin, West-Central Pakistan

  • Ahmad Raza Yasin
  • Muhammad Ashraf


 In the Kakarkhorasan Basin, the Nisai Formation overlies a lava sequence, and shows facies such as unroofing conglomerate, deltaic clastics, red gypsiferous shale and sandstone, bioturbated lagoonal carbonates, skeletal build up carbonates, basinal shales, and carbonate turbidites.
The Muslim Bagh uplift created shallow marine environment that was covered partly by a lava flow. The Nisai carbonate and clastic sediments were deposited there over the lava. The Nisai carbonate shelfwas fringed by a clastic shoreline. Basinwards there were submarine carbonate turbidites fans.