资源调查与环境
資源調查與環境
자원조사여배경
RESOURCES SURVEY & ENVIRONMENT
2012年
4期
225-228
,共4页
重力异常%Tilt梯度%线性构造
重力異常%Tilt梯度%線性構造
중력이상%Tilt제도%선성구조
gravity anomaly%Tilt-angle derivatives%linear structure
线性构造识别是区域重力资料解释中的重要一步。本文介绍了用于探测重力异常边界和场源深度的Tilt梯度法;同时,应用Tdr零值线及±π/4曲线距离半值或零值与＋π/4（或-π/4）曲线距离对研究区重力异常源的位置和埋深进行了推断,并把推断结果与区内大地电磁测深剖面解释成果进行了对比。结果表明,应用Tilt梯度对区域重力资料进行线性构造识别是可行的。
線性構造識彆是區域重力資料解釋中的重要一步。本文介紹瞭用于探測重力異常邊界和場源深度的Tilt梯度法;同時,應用Tdr零值線及±π/4麯線距離半值或零值與＋π/4（或-π/4）麯線距離對研究區重力異常源的位置和埋深進行瞭推斷,併把推斷結果與區內大地電磁測深剖麵解釋成果進行瞭對比。結果錶明,應用Tilt梯度對區域重力資料進行線性構造識彆是可行的。
선성구조식별시구역중력자료해석중적중요일보。본문개소료용우탐측중력이상변계화장원심도적Tilt제도법;동시,응용Tdr령치선급±π/4곡선거리반치혹령치여＋π/4（혹-π/4）곡선거리대연구구중력이상원적위치화매심진행료추단,병파추단결과여구내대지전자측심부면해석성과진행료대비。결과표명,응용Tilt제도대구역중력자료진행선성구조식별시가행적。
The identification of linear structures is an important step in interpretation of regional gravimetric data.In this paper,we introduce the method of Tilt-angle derivatives for detecting of boundaries of gravity anomalies and depths of gravity field sources;besides,the location and depths of gravity field sources are inferred using zero Tdr contours,and half distances between +π/4 contours or distances between zero and +π/4 or-π/4 contours of Tdr,and the results are compared with the interpretation of the magnetotelluric vertical sounding profile of the studied area.The results show that the identification of linear structure in interpretation of regional gravimetric data by using of method of Tilt-angle derivatives is feasible.
