The Salt Range Hills, Pakistan
The rocks in the Salt ranges are generally folded and are typically marked by large and small scale faulting as well as local over-thrusting with movements towards south. The sedimentary sequence ranges from Pre-Cambrian to the Eocene and recent age. It is also marked by several unconformities. In our field visit to the Salt range, we have visited only eastern and western Salt range of the main Salt ranges. In the Eastern Salt range, we studied the Khewra Gorge, while in the western Salt range we studied the Nammal Gorge and Zaluch Nala section. We have studied the stratigraphy and detailed litology of the various formation exposed in the above said Gorges. We also observed some of the very important mineral deposits e.g. Khewra Salt mine, Coal deposits, Iron ores etc. STRATIGRAPHY OF THE REGION The rocks of the Salt ranges stratigraphic units ranges in the age from Pre-Cambrian to the Tertiary with the marked absence of Ordovician , Silurian, Devonian and Carboniferous age throughout the region. Locally a given stratigraphic rock sequence pinches out laterally to the point of vanishing e.g Mesozoic sequence is well developed in the western salt range and Trans-Indus ranges but the Triassic and Jurassic and perhaps all the cretaceous formations are conspicuously absent in the most of the central and eastern Salt range.
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