Objective The term“pockmark”was introduced by King and Mac Lean(1970)to describe small“circular”on echosounder records in Nova Scotia.Pockmarks are usually
Objective The Upper Ordovician Wufeng Formation–Lower Silurian Longmaxi Formation is one of the priority interval for shale gas exploration in the Sichuan Basi
Objective In order to reduce the interfering noise from the earth surface,scientists have carried out multi-geophysical borehole observations and the related st
Objective In recent years,the birth time and evolution of the Three Gorges,Yangtze River has become a focused topic.Different from previous studies,this study u