Crustal doubling in Tibet and the Himalayas by underthrusting of the Indian plate is thought to require the presence of a mafic layer above the Moho. Here, the authors present seismic data which shows that the middle Lhasa Terrane has very low velocity (Vp < 6.7 km/s) throughout the 80 km thick crust, which they suggest is predominantly felsic in composition.
- Gaochun Wang
- Hans Thybo
- Irina M. Artemieva