Zaluch Nala — Permian–Triassic boundary section
Salt Range · also Chhidru–Mianwali boundary section · Nammal–Zaluch section
The western Salt Range holds one of the world's most complete shallow-marine Permian–Triassic boundary successions, where the fossil-rich Late Permian Chhidru Formation passes up into the Early Triassic Mianwali Formation across the end-Permian mass-extinction interval — a section studied internationally for the greatest biotic crisis in Earth history.
- Type areas of the Chhidru and Mianwali formations
- Continuous marine record across the end-Permian extinction
- Rich Permian brachiopod, bryozoan and conodont faunas
The geology here
The stratigraphic units exposed at this site — every geological fact above traces to their cited sources.
Chhidru Formation
Late Permian (Changhsingian)Grey to greenish sandstone, siltstone, limestone
Mianwali Formation
Early Triassic (Induan-Olenekian)Grey limestone, dolomite, shale with thin-bedded appearance
Wargal Limestone
Middle–Late Permian (Capitanian–Wuchiapingian)Light grey to cream fossiliferous limestone
Quantitative assessment
Scored with the Brilha (2016) method — each value 0–400. Desk-based first pass; the full score matrix ships with the open dataset.
Nearby geosites
Sources
Every statement on this page traces to a registered source. Full records ship with the open dataset.
This geosite is an editorial selection; the geological facts trace to the cited sources on the linked unit pages. Coordinates are indicative and not surveyed. ← All geosites · Suggest a correction