A new ground water tracing instrument and its principle
features
and applications are described. Signals from G-M tubes are transported through a 3-wire cable. A low-power liquid crystal scan display circuit controlled by a microcomputer is employed. Both groundwater flow direction and velocity can be determined precisely. The instrument can be used in the survey of many parameters
such as coefficient of permeability
vertical flow
effective porosity
transmissivity
coefficient of dispersion and seepage of dam or reservoir bottom.
A preliminary study on dating and tracing of the 40K-40Ca system
Tritium dating of underground water from the Jian River valley and Houjialiang loess platform in the basin side-band of the East-Mountain Region of Taiyuan
Related Author
WANG Junxin1
2 PENG Zicheng1
2 LIU Guijian1 Fang Minghui 1 Gui Herong1 1
房明惠
桂和荣
Yu Songsheng Wu Qinghua
武清华
Related Institution
Department of Earth and Space Science, University of Science and Technology of China, Hefei 230026) 2