辽宁地区重力复测成果的综合清理与研究

SYNTHETIC STRAIGHTENING AND RESEARCHING OF REPEATED GRAVITY SURVEY RESUITS IN LIAONING AREA

对辽宁省1972年到1985年的重力复测资料,根据新《规范)》进行了全面的清理与系统研究。研究结果表明,尽管海城7.3级地震前后重力复测存在系统误差,但通过进一步的检查、处理后,证明大震前后,在震中及其附近地区重力场发生变化是客观存在的事实。

According to new standard,resurvey data of gravity from 1972 to 1985 in Liaoning area have been overall Straihgtened and researched. The results show that here exists system error of gravity resurvey before and after Haicheng earthquake with 7. 3 (Ms) in 1975,but forther check has proved objective fact of gravity change in ane around epicehter region before and after Haicheng event.