Pakistan Stratigraphy · stratigraphy.pk
Panjpir Formation
https://stratigraphy.pk/formation/panjpir-formation
Panjpir Formation
Early Devonian
Ordovician–Silurian in the time scale →Stratigraphic position
Band colour = period; texture = dominant rock type. Lines between bands mark the contact type (wavy = unconformity inferred from a missing period). 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.
A slate-and-limestone unit above the Misri Banda Quartzite, dated by conodonts from the Ordovician to the Late Silurian.
Named after Panjpir village. Represents shallow marine to deltaic conditions during Early Devonian.
Significance. A slate-and-phyllite unit overlying the Misri Banda Quartzite (dataset Jobra Formation); its limestones carry crinoids, cephalopods and Ludlovian conodonts, and a crinoidal limestone at the top yields Late Silurian (Pridolian) conodonts, giving a Middle Ordovician(?) to Late Silurian age.
- Lithology
- Slate and phyllite with intercalations of limestone and quartzite, and a basal conglomerate carrying quartzite, dolomite, limestone and argillite clasts.
- Thickness
- 110–1,075 m
- Type locality
- Panjpir village, Mardan District
- Environment
- marine
- Introduced by
- Pogue and Hussain (1986)
Fossils
Provinces
References
- Malkani, M.S. & Mahmood, Z. (2017). Stratigraphy of Pakistan. Geological Survey of Pakistan, Memoir Vol. 24.
- Kazmi, A.H. & Jan, M.Q. (1997). Geology and Tectonics of Pakistan. Graphic Publishers, Karachi.
Reviewer confidence: medium
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