Geologic textual research of reliques of Qingming Channel (during the Sui and the Tang dynasties) in campus of Northwest University
Zhi Teng · Journal of Northwest University · 2003
Geologic textual research of D1-D4 transversal section in reliques of Qingming Channel (the Sui and Tang dynasty) have further confirmed the existence of it.On the basis of geologic and geomorphologic characterisitcs,its current,size,characters,and palaeohydrogeologic environment and vicissitudes are also analyzed.Based on incompletely streaked layers,the approximate age of Qingming Channel is estimated.