A method for gravity anomaly separation based on preferential continuation and its application  

作　　者：Meng Xiaohong Guo Lianghui Chen Zhaox Li Shuling Shi Lei 

机构地区：[1]State Key laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China [2]Key Laboratory of Geo-detection （China University of Geosciences, Beijing）, Ministry of Education, Beijing 100083, China

出　　处：《Applied Geophysics》2009年第3期217-225,299,共10页应用地球物理（英文版）

基　　金：supported jointly by projects of the 863 Program (Grant Nos.2006AA06Z111,2006AA06A201-3,and 20060109A1002-0201-03)

摘　　要：Based on the preferential continuation method proposed by Pawlowski （1995）, we propose a method and procedure for gravity anomaly separation with the preferential upward continuation operator in the case that the various sources are uncorrelated with one another and the continuation height is enough large. We also present a method for estimating optimum upward-continuation height, based on analyzing the characteristics of the preferential upward continuation operators of a synthesized gravity anomaly varying with different continuation heights. The method is tested on the raw Bouguer gravity data over an iron deposit. The result shows that the method separates the data into regional anomaly and residual anomaly efficiently and clearly.基于 Pawlowski (1995 ) 建议的优先的继续方法，我们在各种各样的来源互相是 uncorrelated 与，继续高度足够大的情况中与优先的向上的继续操作员为严肃异例分离建议一个方法和过程。我们也为估计最佳介绍一个方法向上继续的高度，与不同继续高度基于分析一个综合严肃异例的优先的向上的继续操作员的特征变化。方法在铁存款上在未加工的 Bouguer 严肃数据上被测试。结果证明方法高效地并且清楚地把数据分开成地区性的异例和剩余异例。

关 键 词：Preferential continuation GRAVITY anomaly separation continuation height 

分 类 号：P631.1[天文地球—地质矿产勘探] TU753[天文地球—地质学]