Moghal Kot Fm

Mona Jhai Gr – upper formation. Holotype section: Moghal Kot Post section (along Fort Sandeman- Dera Ismail Khan Road). Author: M. D. Williams, 1959. Reference section: None.

Sandy claystone. The formation comprises dark grey, calcareous mudstone and calcareous shale with intercalations of quartzose sandstone and light grey argillaceous limestone. The limestone is well developed in the northern part of SP only. Some yellow to greenish yellow marl and shale beds are present in the upper part of the formation in southern SP. In KrP, grey, silty and calcareous shale is more abundant than the calcareous mudstone and marl. Locally in the Axial Belt region a thick sequence of conglomerate occurs (Kahan conglomerate member of Williams, 1959). The conglomerate represents a facies change of the formation. The conglomerate is dark to greyblack and contains boulders, cobbles and pebbles of basalt in a matrix of the same material.

Thickness: 160-1,170 m. The formation is best developed in SP. It is 1,170 m thick in the type section, 160 m north of Pui and is absent in Duki. However, it attains a maximum thickness north of Duki extending to the northern part of Sulaiman Range where it attains a thickness of 1,048 m in the Moghal Kot Section. The Kahan conglomerate is 770 m thick at Kahan in the Ziarat area.

Omphalocyclus sp., Orbitoides sp., Sidrolites sp., Globotruncana, Globogerina and Gumbelina.

Mainly deposited in shallow water, at least part of this formation contains prodelta and delta-slope sediments.