Khaskheli Basalt Formation
Maastrichtian to Danian (Maastrichtian-Danian; ~67.88-64.73 Ma)
Cretaceous-Paleogene in the time scale →Cited in 2 sources Last reviewed Jul 17, 2026
- Rank
- formation
- Status
- Published
- Age
- Cenozoic · Cretaceous-Paleogene · Maastrichtian to DanianMaastrichtian to Danian (Maastrichtian-Danian; ~67.88-64.73 Ma)
- Named by
- N.K. Siddiqui, Pakistan Petroleum Ltd. (written communication, 1987) — split from the Khadro Formation
- Type locality
- Bara Nai, northern Laki Range
- Thickness
- 27-177 m
- Lithology
- Basalt. These lava flows occur at the base of Khadro Formation and were originally included in the same formation. In the outcrops in Laki Range they have a small vertical extent, and are interbedded with mudstone and claystone. However, the wells drilled to the east of the Kirthar fold belt and those drilled in the Badin area encountered much larger thickness of basalts with lesser sedimentary i…
- Synonyms
- Not recorded
Basalt. These lava flows occur at the base of Khadro Formation and were originally included in the same formation. In the outcrops in Laki Range they have a small vertical extent, and are interbedded with mudstone and claystone. However, the wells drilled to the east of the Kirthar fold belt and those drilled in the Badin area encountered much larger thickness of basalts with lesser sedimentary influx within, and overlain by Khadro Fm. In view of their subsurface lateral extent to the east and much increased thickness, they are being proposed as a formation. In the type locality, these basalt…
Fossils
Not recorded
Contacts
Band colour = period; texture = dominant rock type. Lines between bands mark the contact type; dotted = no contact recorded in the sources (not a claim of conformity). 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
- Not recorded
- Region
- Not recorded
- Depositional environment
- Not recorded
- Coordinates
- Not recorded
Correlation
Not recorded. Compare this unit against other basins on the correlation panel →
Economic significance
Not recorded
Remarks
Not recorded
Sources (2)
- Indian Plate Lexicon (indplex.geolex.org), Geological Society of India and international compilation.
- Shah, S.M.I. (2009). Stratigraphy of Pakistan. Geological Survey of Pakistan, Memoir Vol. 22.
Reviewer confidence: high
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: Name attested in the Shah (1977/2009) Geological Survey of Pakistan compilation — the national stratigraphic lexicon. This records where the name is documented; it is not an endorsement of the unit’s definition, age or figures.
Cite this unit
Qudsi, L. (2026). Khaskheli Basalt Formation. In Pakistan Stratigraphy Dataset [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21363991
@misc{stratigraphypk_khaskhelibasalt,
author = {Qudsi, Lareb},
title = {{Khaskheli Basalt 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/khaskheli-basalt (accessed October 29, 2026).
To cite the unit's original definition instead, see: N.K. Siddiqui, Pakistan Petroleum Ltd. (written communication, 1987) — split from the Khadro Formation.
Related units
Saved on this device only.