Seminar: Effects of subduction termination on the continental lithosphere – A geophysical extravaganza on northern Borneo
The G&T seminar series have a great seminar coming up. Simone Pilia from the University of Cambridge will present their work on Wednesday, May 12th at 11:00am EDT (3pm UTC and 4pm BST/GMT).
The fragment of continental lithosphere that is now northern Borneo bears the signature of diachronous opposed subduction systems that ceased in the late Miocene. Intriguingly, there are a number of surface features that cannot be explained by our current understanding of the subduction cycle. These features include the presence of Plio-Pleistocene OIB lavas, evidence of sudden subsidence and uplift, and peak exhumation rates of more than 7 mm/year from the latest Miocene to the Early Pliocene in Mt. Kinabalu, bringing the mountain to 4095 m height (towering over most peaks in southeast Asia). New results from the nBOSS (northern Borneo Orogeny Seismic Survey) experiment, coupled with geological observations and a new numerical simulation, provide an explanation to the surface evidence of post-subduction tectonics on the continental lithosphere.