Precambrian formation GSP memoir

Harmosh Formation

Precambrian (undifferentiated)

Northern Indus Suture · Nanga-Parbat-Harmosh Massif

Cited in 3 sources Last reviewed Jun 29, 2026

Unit summary

Rank: formation
Status: Published
Age: PrecambrianPrecambrian (undifferentiated)
Named by: Not recorded
Type locality: Harmosh (Haramosh) Range, Gilgit District
Thickness: Not recorded
Lithology: Amphibolite-grade biotite schist and gneiss, marble, calc-silicate gneiss and amphibolite.
Synonyms: Not recorded

The amphibolite-grade gneiss and schist of the Nanga Parbat–Haramosh Massif — Indian-plate basement.

Harmosh formation named after the Harmosh Range and consists of amphibolite,-grade biotite schist and gneiss, marble, calc-silicate gneiss and amphibolite. The age is Late Proterozoic (Madin et al. 1989). Shingus gneiss is named after Shingus village in the Indus gorge and consists of amphibolite-grade biotite gneiss, amphibolite, calc-silicate gneiss, biotite schist and marble (Madin et al. 1989). . 2600-2200 Ma Proterozoic

Fossils

Not recorded

Contacts

In the Nanga Parbat Massif column

MetamorphicConformable

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

Nanga Parbat Massif

Basin: Northern Indus Suture
Region: Nanga-Parbat-Harmosh Massif
Depositional environment: metamorphic
Coordinates: Not recorded

Correlation

Not recorded. Compare this unit against other basins on the correlation panel →

Economic significance

Not recorded

Remarks

The amphibolite-facies crystalline schist-and-gneiss sequence of the Nanga Parbat–Haramosh Massif, part of the Precambrian Indian-plate basement re-exposed in the massif; it corresponds to the Nanga Parbat Group of Madin (1986).

Sources (2)

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

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: Appears in a single-author Geological Survey of Pakistan memoir (Malkani & Mahmood 2017), not cross-confirmed against the Shah lexicon. The Stratigraphic Committee of Pakistan is largely inactive, so documented provenance — not formal ratification — is the available signal.

Cite this unit

APA

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

BibTeX

@misc{stratigraphypk_harmoshformation,
  author    = {Qudsi, Lareb},
  title     = {{Harmosh 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/harmosh-formation (accessed September 5, 2026).