Deep structure of the central uplift belt in the Qiangtang terrane, Tibet Plateau from broadband seismic observations
羌塘中央隆起带深部结构特征研究及其意义

The Qiangtang basin bearing oil and gas is the largest Mesozoic-and Cenozoic marine sediment basin in China. The central uplift belt divides the Qiangtang basin into two sub-basins. So far, there are two contrary arguments for the development of the central uplift belts within Qiangtang terrane. One suggests that it formed under extension setting of the Qiangtang terrane in Carboniferous, which has the same basement with the southern Qiangtang basin and Northern Qiangtang basin. The other is that the central uplift belt was a paleotethyan suture, on its both side are present different evolution processes for the southern Qiangtang basin and norhtern Qiangtang basin. Some information from existing geophysical evidence show that the deep structure of the central uplift belt had been possible to be totally presered. To further accurately evaluate the perspective of the oil-bearing Qiangtang basin, it is very essential to survey the deep structure of the central uplift belt by broadband seismic observations. Also, the study well accords with currently macroscopical development of China.