New scenario for the India-Asia collision dynamics
Tuesday, July 28, 2020 - 11:20
in Earth & Climate
To elucidate the timing, location and geodynamic models of the India-Asia collision, Yuan and colleagues conducted paleomagnetic and rock magnetic analyses on two key successions that were deposited on the distal northern part of the Indian passive margin (Tethyan Himalaya terrane), where Upper Cretaceous oceanic red beds (CORBs) of the Chuangde Formation are exposed in the Cailangba A and B sections of the Gyangze area, and Upper Cretaceous to Paleocene red siliceous shales of the lower Sangdanlin Formation are exposed in the Sangdanlin and Mubala sections of the Saga area. The lower Sangdanlin Formation contains the first Asian detritus, and thus determines the collision age.