... DYNAMIC OF RHEOLOGICALY STRATIFIED LITHOSPHERE UNDER CONTINENTAL COLLISION. Electronic version of Ph.D. thesis . ... Purpose of work - constructing of quantitative model of mechanical and thermal processes occurring in the lithosphere, having simplified 3-layers construction (rigid upper, plastic lower crust, rigid mantle lithosphere), under continental collision. ... Stress t xz and strain rate in lower crust, calculated from model M1. a)5 m.y.; b)20 m.y. from the beginning of collision. ...