publication . Article . 2013

Amount of Asian lithospheric mantle subducted during the India/Asia collision

Anne Replumaz; Anne Replumaz; Anne Replumaz; Antonio Villaseñor; Antonio Villaseñor; Antonio Villaseñor; Ana M. Negredo; Ana M. Negredo; Ana M. Negredo; Stéphane Guillot; ...
Open Access
  • Published: 01 Jan 2013 Journal: Gondwana Research, volume 24, pages 936-945 (issn: 1342-937X, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Spain
Abstract
Body wave seismic tomography is a successful technique for mapping lithospheric material sinking into the mantle. Focusing on the India/Asia collision zone, we postulate the existence of several Asian continental slabs, based on seismic global tomography. We observe a lower mantle positive anomaly between 1100 and 900 km depths, that we interpret as the signature of a past subduction process of Asian lithosphere, based on the anomaly position relative to positive anomalies related to Indian continental slab. We propose that this anomaly provides evidence for south dipping subduction of North Tibet lithospheric mantle, occurring along 3000 km parallel to the Sout...
Subjects
free text keywords: Budget of continental subduction, Amount of convergence, India–Asia collision, Tibet, Asian continental slab, Seismology, Lithosphere, Continental collision, Collision zone, Subduction, Tectonics, Mantle (geology), Slab window, Geology, Seismic tomography
Any information missing or wrong?Report an Issue