地质调查与研究Issue(2):131-135,5.
1:20万重磁综合异常提取及地质意义-以内蒙东乌旗地区为例
Interpretation of 1:200 000 Comprehensive Anomalies of Gravity and Magnetism and Geological Significance in Dongwuqi Area, Inner Mongolia
摘要
Abstract
Vertical first-order derivative of the local gravity anomalies and upward continuation of aeromagnetic anomalies reduced to the pole are calculated based on 1:200 000 gravimetric and magnetic data in Dongwuqi ar-ea, inner Monggolia, for study of the deep structure. The authors have delineated 13 positive anomalies and 13 negative anomalies in the study area. The statistical values R of correlation coefficient in deposit areas mainly fall between-0.4 ~ 0.4. The interpretation shows that the positive and negative anomalies are related to magmatic rocks and Palaeozoic uplift respectively. Some of the inference are proven by the geological data. The study pro-vides reliable information of geophysics for basic geological work and effective method for comprehensive anom-aly analysis of gravity and magnetism.关键词
布格重力异常/航磁化极异常/垂向一阶导数/对应分析Key words
Bouguer gravity anomaly/aeromagnetic anomaly reduced to the pole/vertical first-order derivative/correspondence analysis technique分类
天文与地球科学引用本文复制引用
滕菲,邢怡,张国利,张素荣,高学生,苏永军,匡海阳..1:20万重磁综合异常提取及地质意义-以内蒙东乌旗地区为例[J].地质调查与研究,2014,(2):131-135,5.基金项目
中国地质调查项目:区域地球物理调查成果集成与方法技术研究 ()