1. Indus Basin:
* Potwar Plateau: This region is rich in sedimentary rocks of the Siwalik Group, containing fossils and evidence of ancient Himalayan uplift.
* Punjab Plains: Composed primarily of alluvial sediments deposited by the Indus River, forming fertile agricultural lands.
* Sindh Plain: Extensively covered by the Indus River sediments, including sandstone, claystone, and limestone.
2. Balochistan:
* Makran Coastal Range: A complex of folded and faulted sedimentary rocks, including limestone, sandstone, and shale.
* Chagai Hills: Contains sedimentary formations, including sandstone and limestone, often rich in fossils.
* Kharan Desert: Dominated by wind-blown sand and sandstone formations.
3. Khyber Pakhtunkhwa:
* Salt Range: Famous for its extensive salt deposits, as well as sandstone, shale, and limestone.
* Kohat Plateau: Characterized by a thick sequence of sedimentary rocks, including limestone and sandstone.
* Swat Valley: Contains sedimentary formations of the Siwalik Group, rich in fossils.
4. Gilgit-Baltistan:
* Karakoram Mountains: Higher elevations feature sedimentary rocks exposed due to uplift, including sandstone, shale, and limestone.
* Ladakh Range: Holds sedimentary formations, primarily sandstone and shale, often interbedded with volcanic rocks.
5. Azad Jammu and Kashmir:
* Kashmir Valley: Contains sedimentary rocks, including sandstone, shale, and limestone, often deposited in ancient lake basins.
* Pir Panjal Range: Sedimentary rocks are prominently exposed, with limestone, shale, and sandstone formations.
It is important to note that sedimentary rocks are not evenly distributed throughout Pakistan. Their specific occurrence and types vary depending on the geological history and tectonic processes that shaped each region.
