TY JOUR TI Crustal shortening during mountain building: A case study in the Pamir-Tien Shan and Altay-Mongolia region KW crustal shortening KW rifting KW plate tectonics KW underplating. JO Russian Journal of Earth Sciences AU Yakovlev, F.L. AU Yunga, S.L. PY 2001 IS 3 PB Geophysical Center of the Russian Academy of Sciences