Source provenance
Hildebrand, P.R., Noble, S.R., Searle, M.P., Parrish, R.R. & Shakirullah (2001). Tectonic significance of 24 Ma crustal melting in the eastern Hindu Kush, Pakistan. Geology, 29(3), 227-230.
Cited by 1 unit (1 published) · 0 field-level citations · 1 revision note.
U-Pb (monazite/xenotime/uraninite) dating of the Garam Chashma two-mica leucogranite (eastern Hindu Kush) at ~24 Ma, with the Tirich Mir, Shushar and Kafiristan plutons; records Miocene crustal melting during continued northward Hindu Kush subduction. Notes that the metamorphic host rocks (Arkari Formation of Leake et al. 1989; staurolite-grade schists to sillimanite-K-feldspar migmatites) are the SW continuation of the Permian-Triassic-fossiliferous Wakhan slates, exposed NW of the Tirich Mir fault.
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Units citing this source
- Paleozoic Wakhan Formation
- Age: Hildebrand et al. (2001): the metamorphic host rocks of the eastern Hindu Kush (the Arkari Formation of Leake et al. 1989 — staurolite-grade schists grading SW into sillimanite-K-feldspar migmatites) are regarded as the southwestward, higher-grade continuation of the Wakhan slates, which carry Permian-Triassic fossils and crop out NW of the Tirich Mir fault. These host rocks were intruded by the ~24 Ma Garam Chashma leucogranite, dating Miocene crustal melting in the Hindu Kush. Corroborates the Permian-Triassic Wakhan age and its regional metamorphic context.