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Mesozoic • Triassic member In GSP lexicon

Khatkiara Sandstone Member

Triassic

Part of Tredian Formation

Triassic in the time scale →

Cited in 4 sources Last reviewed Aug 10, 2026

Unit summary
Rank
member
Status
Published
Age
Mesozoic · Triassic · TriassicTriassic
Named by
Kummel & Teichert (1966)
Type locality
Not recorded
Thickness
150 ft (46 m) SE of Paniala
Lithology
Brown and white soft friable micaceous sandstone, fine to medium grained; dolomitic near the top with thin gray/black shale; disconformable conglomeratic base.
Synonyms
Not recorded

Upper member of the Tredian Formation: friable micaceous sandstone with a disconformable conglomeratic base; forms cliffs with the overlying Kingriali Dolomite. 150 ft thick SE of Paniala.

Fossils

Not recorded

Contacts

In the Salt Range column
  1. Narmia MemberTriassic
  2. Landa MemberTriassic
  3. Khatkiara Sandstone Member ◀Triassic
  4. Tobra FormationFossils recordedPermian
  5. Warchha SandstoneFossils recordedPermian
LimestoneSandstoneMixedFossils recordedContact not recorded

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

Salt Range Kohat Basin Potwar Basin
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

Research notes (3)

Field-by-field findings drawn from the cited literature. Every statement is traced to a registered source — follow a citation for the full reference.

Name & nomenclature (1)

  • Attested in Shah (2009), Geological Survey of Pakistan Memoir 22, which describes it as Khatkiara Member, upper member of the Tredian Formation (Danilchik & Shah 1967). Adds the definitional GSP/SCP lexicon citation.

    Shah, S.M.I. (2009)

Lithology (2)

  • Kazmi & Jan (1997): the 'Khatkiara Member' (Danilchik et al. 1967) is the upper part of the Middle Triassic Tredian Formation — 38–59 m of massive-to-thick-bedded sandstone with thin dolomite interbeds above the Landa Member, grading up into the Kingriali Formation.

    Kazmi, A.H. & Jan, M.Q. (1997)

  • Hemphill & Kidwai (1973, USGS PP 716-B): the Khatkiara Sandstone Member (upper Tredian; name of Danilchik & Shah 1973 replacing Gee's 'Kingriali sandstone') is ~150 ft of brown/white soft friable micaceous sandstone, dolomitic near the top with grey/black shale; its base is disconformable (a basal conglomerate with limonitized plant fragments).

    Hemphill, W.R. & Kidwai, A.H. (1973)

Sources (5)
  • Hemphill, W.R. & Kidwai, A.H. (1973). Stratigraphy of the Bannu and Dera Ismail Khan Areas, Pakistan. U.S. Geological Survey Professional Paper 716-B, 36 p.
  • Hemphill, W.R. & Kidwai, A.H. (1973). Stratigraphy of the Bannu and Dera Ismail Khan Areas, Pakistan. U.S. Geological Survey Professional Paper 716-B (Geological Investigations in Pakistan), 36 p.
  • Shah, S.M.I. (2009). Stratigraphy of Pakistan. Geological Survey of Pakistan, Memoir Vol. 22.
  • Kazmi, A.H. & Jan, M.Q. (1997). Geology and Tectonics of Pakistan. Graphic Publishers, Karachi.
  • Kazmi, A.H. & Abbasi, I.A. (2008). Stratigraphy and Historical Geology of Pakistan. Department & National Centre of Excellence in Geology, University of Peshawar, Peshawar. 524 pp. ISBN 978-969-9119.

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.

Spotted an error? Suggest a sourced correction →

Cite this unit
APA

Qudsi, L. (2026). Khatkiara Sandstone Member. In Pakistan Stratigraphy Dataset [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21363991

BibTeX 
@misc{stratigraphypk_khatkiarasandstone,
  author    = {Qudsi, Lareb},
  title     = {{Khatkiara Sandstone Member} --- 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/khatkiara-sandstone (accessed October 29, 2026).

To cite the unit's original definition instead, see: Kummel & Teichert (1966).

Below · older

Landa Member

Triassic

Above · younger

Kingriali Formation

Triassic

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