Urak Formation
Pliocene
Pishin Basin · Quetta–Pishin (Tungi Syncline)
Neogene in the time scale →Cited in 1 source Last reviewed Aug 2, 2026
- Rank
- Not recorded
- Status
- Published
- Age
- Cenozoic · Neogene · PliocenePliocene
- Named by
- Not recorded
- Type locality
- Not recorded
- Thickness
- Not recorded
- Lithology
- Conglomerate, sandstone and shale (molasse).
- Synonyms
- Not recorded
A Pliocene molasse unit of the Quetta–Pishin region, northern Balochistan, forming the core of the Tungi Syncline. It comprises conglomerate, sandstone and shale in three members — the Uzdapasha, Shinmati and Urak Conglomerate members — and is in thrust contact with older units (the Allozai, Parh/Bibai, Loralai, Sembar and Dungan formations).
Fossils
Not recorded
Contacts
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.
Distribution & setting
- Basin
- Pishin Basin
- Region
- Quetta–Pishin (Tungi Syncline)
- Depositional environment
- fluvial, alluvial
- Coordinates
- Not recorded
Correlation
Not recorded. Compare this unit against other basins on the correlation panel →
Economic significance
Not recorded
Remarks
Not recorded
Sources (1)
- Waliullah, Khan, J.A. & Akhtar, W. Preliminary geology and mineral potential of the Karezat and Barshor quadrangles (toposheets 34 N/6 and 5), district Pishin, Balochistan. Geological Survey of Pakistan, Quetta (abstract).
Reviewer confidence: low
Every fact on this page is source-cited. This entry is part of the peer-archived Pakistan Stratigraphy Dataset (doi.org/10.5281/zenodo.21363991, CC‑BY‑4.0).
Lexicon status: Defined in journal or other literature; not found in a GSP memoir. There is no body currently ratifying unit status, so provenance is shown in place of a formal ruling.
Cite this unit
Qudsi, L. (2026). Urak Formation. In Pakistan Stratigraphy Dataset [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21363991
@misc{stratigraphypk_urakformation,
author = {Qudsi, Lareb},
title = {{Urak Formation} --- Pakistan Stratigraphy Dataset},
year = {2026},
publisher = {Zenodo},
doi = {10.5281/zenodo.21363991},
url = {https://doi.org/10.5281/zenodo.21363991}
} Archived dataset: doi.org/10.5281/zenodo.21363991 (CC‑BY‑4.0) · Direct link to this entry: https://stratigraphy.pk/formation/urak-formation (accessed August 30, 2026).
Related units
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