Himalayan Tectonics: A Modern Synthesis
CONTAINS OPEN ACCESS
The Himalaya–Karakoram–Tibet mountain belt resulted from Cenozoic collision of India and Asia and is frequently used as the type example of a continental collision orogenic belt. The last quarter of a century has seen the publication of a remarkably detailed dataset relevant to the evolution of this belt. Detailed fieldwork backed up by state-of-the-art structural analysis, geochemistry, mineral chemistry, igneous and metamorphic petrology, isotope chemistry, sedimentology and geophysics produced a wide-ranging archive of data-rich scientific papers. The rationale for this book is to provide a coherent overview of these datasets in addressing the evolution of the mountain ranges we see today.
This volume comprises 21 specially invited review papers on the Himalaya, Kohistan arc, Tibet, the Karakoram and Pamir ranges. These papers span the history of Himalayan research, chronology of the collision, stratigraphy, magmatic and metamorphic processes, structural geology and tectonics, seismicity, geophysics, and the evolution of the Indian monsoon. This landmark set of papers should underpin the next 25 years of Himalayan research.
Structural evolution, metamorphism and melting in the Greater Himalayan Sequence in central-western Nepal
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Published:October 08, 2019
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CiteCitation
Rodolfo Carosi, Chiara Montomoli, Salvatore Iaccarino, Dario Visonà, 2019. "Structural evolution, metamorphism and melting in the Greater Himalayan Sequence in central-western Nepal", Himalayan Tectonics: A Modern Synthesis, P. J. Treloar, M. P. Searle
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Abstract
Joining geological mapping, structural analysis, petrology and geochronology allowed the internal architecture of the Greater Himalayan Sequence (GHS) to be unraveled. Several top-to-the-south/SW tectonic–metamorphic discontinuities developed at the regional scale, dividing it into three main units exhumed progressively from the upper to the lower one, starting from c. 40 Ma and lasting for several million years. The activity of shear zones has been constrained and linked to the pressure–temperature–time–deformation (P–T–t–D) evolution of the deformed rocks by the use of petrochronology. Hanging wall and footwall rocks of the shear zones recorded maximum...
- Asia
- crystallization
- deformation
- emplacement
- exhumation
- extrusive rocks
- fabric
- faults
- folds
- foliation
- foot wall
- genesis
- granites
- hanging wall
- Himalayas
- ICP mass spectra
- igneous rocks
- Indian Peninsula
- Kali Gandaki Valley
- leucogranite
- lineation
- Main Central Thrust
- mapping
- mass spectra
- melting
- melts
- metamorphic rocks
- metamorphism
- mineral composition
- models
- mylonites
- Nepal
- outcrops
- P-T conditions
- P-T-t paths
- plutonic rocks
- shear
- shear zones
- spectra
- strain
- structural analysis
- temperature
- thrust faults
- Peshawar Basin
- west-central Nepal
- Sutlej Basin
- South Tibetan Detachment
- Greater Himalayan Sequence
- Main Boundary Thrust
- Toijem shear zone
- Kalopani shear zone
- High Himalayan Discontinuity
- Tiyar shear zone