Open data
Download the dataset
Every geological unit on this site, as an open, machine-readable dataset — free to use for research, teaching and applications under a CC BY 4.0 licence. Please cite the archived release when you use it.
Peer-archived & citable
Version 4.2.0 · deposited on Zenodo with a permanent DOI · CC BY 4.0
- Units
- 363
- Provinces
- 19
- Geolocated
- 173
- Source-cited
- 362
- Contacts
- 480
- Published
- 340
All 363 units with every field, plus dataset metadata. Best for developers and APIs.
One row per unit, UTF-8 with BOM. Opens cleanly in Excel, Google Sheets, R or pandas.
173 units with a resolved type-locality point. Drop into QGIS, Leaflet or kepler.gl.
Linked data (schema.org Dataset + one DefinedTerm per unit). For knowledge graphs and semantic tooling.
By basin
Need just one sedimentary basin? Each basin below offers the same four formats, scoped to its units (grouped the same way as the correlation and basin pages). Programmatic access: append .json, .csv, .geojson or .jsonld to /data/basin/<slug>.
Use offline
This site already works offline for pages you’ve opened. Save the whole reference to your device — every unit, period and province page — so it’s available in the field with no signal.
Downloads a few megabytes of pages. Re-run after a site update to refresh. Needs a browser that supports service workers.
Fields
- id
- Stable URL slug (also the deep-link: /formation/{id})
- name
- Unit name
- rank
- formation · group · member
- status
- published · under-review
- era / period / epoch / age
- Chronostratigraphy as recorded
- introducedBy
- Author(s) who first defined the unit
- typeLocality / coordinates / lat / lng
- Type section; lat/lng parsed to decimal degrees where possible
- thickness
- Recorded thickness (free text with units)
- lithology / lithologyType
- Dominant rock description and its normalised class
- environment
- Depositional environment(s)
- basin / region / provinces
- Geographic & tectonic setting
- fossils
- Recorded fossil taxa
- synonyms
- Alternative / historical names
- economic
- Economic significance (free text)
- economicResources
- Classified resource roles: Source rock · Reservoir · Seal · Coal & lignite · Salt & evaporites · Cement & lime · Building stone · Metals & minerals · Groundwater ("; "-joined)
- overlies / underlies / lowerContact / upperContact
- Stratigraphic neighbours & contact types
- references
- Count of cited sources for the unit
The JSON keeps arrays as arrays; the CSV joins multi-value fields (provinces, fossils, synonyms) with a semicolon. lat/lng are decimal degrees, parsed from the recorded type-locality where a coordinate exists.
Cite the dataset
If you use the data, please cite the archived, DOI-registered release:
Qudsi, L. (2026). Pakistan Stratigraphy Dataset (Version 4.2.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21363991
@misc{qudsi2026pakistanstratigraphy,
author = {Qudsi, Lareb},
title = {{Pakistan Stratigraphy Dataset}},
year = {2026},
version = {4.2.0},
publisher = {Zenodo},
doi = {10.5281/zenodo.21363991},
url = {https://doi.org/10.5281/zenodo.21363991}
} Archived on Zenodo: doi.org/10.5281/zenodo.21363991 — the concept DOI always resolves to the latest version. Licensed under Creative Commons Attribution 4.0. Compiled from the published geological literature on Pakistan; see each unit's Sources for provenance.