【摘要】 本文用动态秩亏自由水准网平差和拟稳平差处理关中地区七十年代以来的全部水准资料,描述了本区近期垂直形变场演变特征,指出1977年前后本区地壳形变曾发生反向,并对此进行了粗浅的讨论。更多还原

【Abstract】 The dynamic adjustment of free levelling network and the quasi-stable adjustment is used to process the levelling data obtained in the Guanzhong area since 1970 year.This paper deals with the difference of vertical deformation obtained from four-term levelling, and points out that abnormal deformation occurred before and after 1977 yearoAdditionally, the possible factors of the abnormal deformation are discussed.更多还原