The horizontal low velocitylayer, the vertical low velocity zone and the highvelocitylayer in the basement of the lower crust are related to the ore_forming processes.
There is a low velocity-high conductive layer in the mid-crust of the Songliao Basin.
对于地壳的地球物理详细探测发现中地壳普遍存在着高导层和低速层。
3
The geothermal anomaly, low velocity zone and high conductivity layer in crust, and frequent occurrence of strong earthquakes show that the study area is an active area of modern tectonization.