Erdenet copper mine, which located 300 km north-west produces several ... The distance to Erdenet copper mine is 300 km. and travel time of infrasonic wave is ...
Probable cause of signals. Other automatic locations in same time period and general location ... persist over a long period of time (e.g., hours) are observed ...
June 1998: Installation of DFX-PMCC at the PIDC, Arlington ... June 2002: DFX-PMCC run offline, results ... 2003: DFX-PMCC/WinPMCC comparison - Bug corrections ...