Mesozoic • Jurassic formation In GSP lexicon

Mazar Drik Formation

Middle Jurassic (late Bathonian–early Callovian)

Cited in 4 sources Last reviewed Jul 30, 2026

Unit summary

Rank: formation
Status: Published
Age: Mesozoic · Jurassic · Middle JurassicMiddle Jurassic (late Bathonian–early Callovian)
Named by: Not recorded
Type locality: Not recorded
Thickness: less than 30 m at Mazar Drik (Marri hills type area)
Lithology: Interbedded grey limestone and dark shale.
Synonyms: Not recorded

A thin Middle Jurassic (Upper Bathonian–Lower Callovian) unit of interbedded grey limestone and dark shale, less than 30 m thick in its Mazar Drik (Marri hills) type area, resting transitionally on the Chiltan Limestone (Kadri, 1995). Its upper part carries an early Callovian fauna. Shah (2009) treats the interval as a member of the Takatu Limestone.

Fossils

Early Callovian fauna (upper part)

Contacts

In the Sulaiman Fold Belt column

LimestoneShale / mudFossils 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

Sulaiman Fold Belt

Basin: Not recorded
Region: Not recorded
Depositional environment: marine
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 (2)

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 - the Stratigraphic Committee of Pakistan's compiled lexicon (listed in the memoir's contents). Adds the definitional GSP/SCP lexicon citation. Shah lists this unit as 'Mazar Drik Member'.

Shah, S.M.I. (2009)

Age & correlation (1)

Kazmi & Jan (1997): the Mazar Drik Formation (Callovian to Late Bathonian; type Mazar Drik, Marri Hills) is ~30 m of interbedded grey limestone and dark shale, conformable on the Takatu Limestone and disconformably overlain by the Sembar Formation; a rich Middle-Jurassic ammonite fauna (Macrocephalites, Indocephalites, Bullatimorphites bullatus).

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

Sources (3)

Kadri, I.B. (1995). Petroleum Geology of Pakistan. Pakistan Petroleum Limited, Karachi.
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.

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.

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Cite this unit

APA

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

BibTeX

@misc{stratigraphypk_mazardrikformation,
  author    = {Qudsi, Lareb},
  title     = {{Mazar Drik 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/mazar-drik-formation (accessed October 29, 2026).

Below · older

Chiltan Limestone

Jurassic