Page 2 - i1052-5173-30-6

Structural and Thermal Evolution of the
Himalayan Thrust Belt
in Midwestern Nepal

By P.G. DeCelles, B. Carrapa, T.P. Ojha,
G.E. Gehrels, and D. Collins
Spanning eight kilometers of topographic relief, the
Himalayan fold-thrust belt in Nepal has accommo-
dated more than 700 km of Cenozoic convergence
between the Indian subcontinent and Asia. Rapid
Special Paper 547 tectonic shortening and erosion in a monsoonal
Structural and Thermal Evolution of
climate have exhumed greenschist to upper amphi-
bolite facies rocks along with unmeta morphosed
the Himalayan Thrust Belt in Midwestern Nepal rocks, including a 5–6-km-thick Ceno zoic foreland
basin sequence. This Special Paper presents
By P .G. DeCelles et al.
new geochronology, multisystem thermochro-
nology, structural geology, and geological
mapping of an approximately 37,000 km region
2
in midwestern and western Nepal. This
work informs enduring Himalayan debates,
including how and where to map the Main
Central thrust, the geometry of the seismi-
cally active basal Himalayan detachment,
processes of tectonic shortening in the
context of postcollisional India-Asia con-
vergence, and long-term geodynamics of
the orogenic wedge.

SPE547, 77 p. + insert
ISBN 9780813725475
IN PRESS
Structural and Thermal Evolution of the Himalayan Thrust Belt in Midwestern Nepal

By P .G. DeCelles, B. Carrapa, T .P . Ojha, G.E. Gehrels, and D. Collins PRESS
IN

GSA Special Paper 547

GSA BOOKS } https://rock.geosociety.org/store/

toll-free 1.800.472.1988 | +1.303.357.1000, option 3 | gsaservice@geosociety.org