摘要
区域重力调查工作,对断裂的空间位置及区域构造分区是主要地质任务之一。本文利用布格重力异常,进行深部场、浅部场的分析。通过场的分离对区域场与剩余场特征分析;经过异常转换信息划分区域地质构造界线,特别是对Ⅲ级构造单元的划分从重力异常成果中,获得三高二低趋势,通过深大断裂划分确定区域地质构造分区界线,从而重新划分该区Ⅲ级以上构造区块位置,本次工作成果将为今后该区研究工作带来新的信息。
Regional gravity survey is one of the main geological tasks to the spatial location of the fracture and the regional structure district.In this paper,the deep field and the shallow field were analyzed by Bouguer gravity anomalies.By the regional field and residual field characteristics analysis,anomalous information exchange,divided regional geological tectonic boundaries,especially for grade Ⅲdivision of tectonic units in the results from the gravity anomaly,given the three high and two low trend in the study area,identified regional tectonics district boundaries by the deep fault division,and results of the work in the study area for future research work to bring new information.
出处
《吉林地质》
2011年第3期73-77,共5页
Jilin Geology
关键词
布格重力异常
重力场分区及地质意义
构造单元划分
深部构造的特征
Bouguer gravity anomaly
gravity partition and geological significance
tectonic units
deep structural features
