{"type":"FeatureCollection","name":"Pakistan Stratigraphy Explorer — Karakoram-Hindukush Basin (Laurasia) type localities","license":"CC BY 4.0","source":"https://stratigraphy.pk","generated":"2026-10-29","features":[{"type":"Feature","geometry":{"type":"Point","coordinates":[76.62,36.18]},"properties":{"id":"aghil-limestone","name":"Aghil Limestone","url":"https://stratigraphy.pk/formation/aghil-limestone","rank":"","era":"Mesozoic","period":"Triassic–Jurassic","age":"Middle Triassic to Early Jurassic","basin":"","region":"","provinces":"Karakoram","lithology":"Grey and white limestone and dolomite.","economicResources":"","status":"published"}},{"type":"Feature","geometry":{"type":"Point","coordinates":[73.38,36.85]},"properties":{"id":"ailak-formation","name":"Ailak Formation","url":"https://stratigraphy.pk/formation/ailak-formation","rank":"formation","era":"Mesozoic","period":"Triassic","age":"Late Permian–Late Triassic","basin":"Karakoram-Hindukush Basin","region":"Central Karakoram Batholith","provinces":"Karakoram","lithology":"Massive dolomite and limestone.","economicResources":"","status":"published"}},{"type":"Feature","geometry":{"type":"Point","coordinates":[71.8,36.2]},"properties":{"id":"arkari-formation","name":"Arkari Formation","url":"https://stratigraphy.pk/formation/arkari-formation","rank":"formation","era":"Paleozoic","period":"Permian–Jurassic","age":"Permian–Jurassic","basin":"Karakoram-Hindukush Basin","region":"Central Karakoram Batholith","provinces":"Karakoram","lithology":"Schist, phyllite, quartzite and extensive marble (metasediments up to lower-amphibolite facies).","economicResources":"","status":"published"}},{"type":"Feature","geometry":{"type":"Point","coordinates":[74.5,36.72]},"properties":{"id":"ashtigar-formation","name":"Ashtigar Formation","url":"https://stratigraphy.pk/formation/ashtigar-formation","rank":"formation","era":"Mesozoic","period":"Jurassic","age":"Jurassic","basin":"Karakoram-Hindukush Basin","region":"Central Karakoram Batholith","provinces":"Karakoram","lithology":"Thick, dark grey marly shale interbedded with fine-grained turbidites, calcarenite and volcanic debris.","economicResources":"","status":"published"}},{"type":"Feature","geometry":{"type":"Point","coordinates":[75.7533,35.9481]},"properties":{"id":"baintha-group","name":"Baintha Group","url":"https://stratigraphy.pk/formation/baintha-group","rank":"group","era":"","period":"","age":"","basin":"Karakoram-Hindukush Basin","region":"Southern Metamorphic Belt","provinces":"Karakoram","lithology":"Massive beds of marble, locally intruded by granite.","economicResources":"","status":"under-review"}},{"type":"Feature","geometry":{"type":"Point","coordinates":[74.6667,36.3167]},"properties":{"id":"baltit-group","name":"Baltit Group","url":"https://stratigraphy.pk/formation/baltit-group","rank":"group","era":"Precambrian","period":"Precambrian","age":"Precambrian","basin":"Karakoram-Hindukush Basin","region":"Southern Metamorphic Belt","provinces":"Karakoram","lithology":"Slate, quartzite and crystalline limestone/marble (metasediments).","economicResources":"","status":"published"}},{"type":"Feature","geometry":{"type":"Point","coordinates":[76.3,35.75]},"properties":{"id":"baltoro-granite","name":"Baltoro Granite","url":"https://stratigraphy.pk/formation/baltoro-granite","rank":"","era":"Cenozoic","period":"Neogene","age":"Early Miocene (~21 Ma; 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