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Pakistan Stratigraphy
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Mesozoic • Jurassic formation

Dark limestone

Jurassic

Karakoram-Hindukush Basin · Central Karakoram Batholith

Jurassic in the time scale →

Stratigraphic position

In the Karakoram column
MarlLimestoneSandstoneShale / mudFossils recordedConformable

Band colour = period; texture = dominant rock type. Lines between bands mark the contact type. True scale makes height ∝ recorded thickness; hatched = thickness not recorded. Ages approximate, for ordering.

This unit (highlighted) within its province column; faded ends continue above and below. Line style marks the contact type.

An Early Jurassic dark limestone unit, about 150 m thick.

Dark limestone is named by Gaetani et al. (1996a) and consists of 150m thick limestone and its age is Liassic (Pliensbachian).

Significance. An Early Jurassic (Liassic, Pliensbachian) limestone of the Karakoram Mesozoic succession.

Lithology
About 150 m of dark limestone.
Thickness
about 150 m
Basin
Karakoram-Hindukush Basin
Region
Central Karakoram Batholith
Environment
marine
Introduced by
Gaetani et al. (1996a)

Provinces

References

  • Malkani, M.S. & Mahmood, Z. (2017). Stratigraphy of Pakistan. Geological Survey of Pakistan, Memoir Vol. 24.

Reviewer confidence: medium

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