Asian margin assembly
Arc, ocean-basin, and accretionary systems established much of the inherited framework later incorporated into the Pamir.
EvidenceTAJIKISTAN FIELD GUIDE
Explore terranes, deep-crust windows, sedimentary archives, and carefully sourced mineral heritage.
REGIONS MAP
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Schematic regional map · markers show broad study areas, never mine entrances or collecting coordinates.
GEOLOGICAL REGIONS
The Kurama range and the Mogoltau mountains belong to a Paleozoic volcanic arc of the Middle Tien Shan; to the south the Fergana basin buries the older rocks beneath young sediments.
Region-level geography Paleozoic host rocks with younger alkaline and hydrothermal mineralisationThe Turkestan, Zeravshan, Gissar and Alai ranges form a Late Paleozoic collision belt; its alkaline massifs and hydrothermal systems host unusually diverse minerals.
Region-level geography Cretaceous–presentA deep sedimentary archive west of the Pamir that records changing seas, rivers, subsidence, and the outward growth of the mountain belt.
Region-level geography Permian–presentThe northern edge of the Pamir records Paleozoic–Mesozoic ocean-basin evolution and later Cenozoic uplift against the Alai and Tajik basins.
Region-level geography Paleogene–Miocene reworking of older crustA chain of metamorphic domes exposes rocks that travelled through the middle crust during collision, melting, and rapid exhumation.
Region-level geography Precambrian protoliths; Cretaceous magmatism; Cenozoic metamorphism and exhumationSouth of the Rushan–Pshart suture: deep crystalline crust in the south-west, exposed in the giant Shakhdara–Alichur dome with the historic Kuh-i-Lal spinel district, and Permian–Jurassic sedimentary cover in the south-east.
Region-level geography Paleozoic–presentA high, actively deforming orogen where pre-Cenozoic Asian terranes were profoundly reworked during the India–Asia collision.
Region-level geographyDEEP TIME
Arc, ocean-basin, and accretionary systems established much of the inherited framework later incorporated into the Pamir.
EvidenceFinal accretion of Central and South Pamir terranes assembled major parts of the pre-collision orogen.
EvidenceA large Cretaceous batholith, including a high-flux event near 105 Ma, records subduction-related magmatism.
EvidencePamir gneiss domes record prograde burial and crustal thickening during India–Asia convergence.
EvidenceGravitational collapse and normal-sense shear zones begin exhuming hot middle-to-lower crust in major gneiss domes.
EvidenceChanges in facies, zircon provenance, and isotopes record middle–late Miocene deformation and uplift.
EvidenceSatellite geodesy measures uplift, shortening, and westward motion where the Pamir overrides the Tajik depression.
Evidence