Abstract：There exists close relationship between intermediate-acid intrusive rock and regional mineralization in the southeast of Hubei Province. According to the features of rock bodies and geophysical properties of the ores and the model put forward by geologists, the authors set up a geological-geophysical model which is characterized by multi-identifying information and identifying mark. And then, the authors used actual data to prove it. The authors extracted weak local gravity and magnetic anomalies to compare theoretical model's combination with local gravity and magnetic anomalies on different scales with the effect of the theoretical model through wavelet multi-scale decomposition, from which the authors have drawn the conclusion that low gravity-high magnetic local anomalies are caused by rocks, whereas high gravity-high magnetic local anomalies are caused by large scale mineralized body on large scale details; high gravity-high magnetic local anomalies are caused by mineralized body on small scale details. On such a basis, the authors delineated 13 low gravity-high magnetic local anomalies and high gravity-high magnetic local anomalies areas which may have concealed rock bodies or mineralized bodies (orebodies). The authors infer that the northeast high gravity-high magnetic local anomaly stripe of Luosishan-ZKI01-Chenjiashantou, the ringlike high gravity-high magnetic local anomaly of Shizishan-Yupingshan and the high local gravity anomaly are further ore-prospecting targets, as shown by the features of known drill holes' relation to high gravity-high magnetic local anomalies.
朱丹, 刘天佑, 杨宇山. 鄂东南地区岩体重磁异常场特征及找矿方向[J]. 物探与化探, 2017, 41(4): 587-593.
ZHU Dan, LIU Tian-You, YANG Yu-Shan. Gravity and magnetic anomalies characteristics of rock bodies and ore-prospecting orientation in the southeast of Hubei Province. Geophysical and Geochemical Exploration, 2017, 41(4): 587-593.
[1] 周涛发,范裕,袁峰.长江中下游成矿带成岩成矿作用研究进展[J].岩石学报,2008,24(8):1665-1678. [2] 张国胜.鄂东南燕山期构造特征及其控岩控矿作用[J].湖北地质,1992,6(2):16-29. [3] 王瑜,李朗田,苏绍明.鄂东铁矿成矿地质特征与找矿预测[J].地质与勘探,2007,43(1):17-25. [4] 刘晓妮,孔繁河,杨培,等.鄂东南小岩体分布及其基本特征[J].资源环境与工程,2009,23(4):390-395. [5] 夏金龙.湖北大冶灵乡铁矿床接触带构造及其成矿控矿意义[D].武汉:中国地质大学(武汉),2010. [6] 刘天佑,刘大为,詹应林,等.磁测资料处理新方法及在危机矿山挖潜中的应用[J].物探与化探,2006,30(5):377-381. [7] 刘天佑,吴招才,詹应林,等.磁异常小波多尺度分解及危机矿山的深部找矿:以大冶铁矿为例[J].地球科学—中国地质大学学报,2007,32(1):135-141. [8] 侯遵泽.小波分析及其在勘察地球物理中的应用[J].物探与化探,1998,22(1):71. [9] 张恒磊,刘天佑.基于小波分析的磁测数据处理流程及解释方法[J].物探与化探,2009,33(6):686-690. [10] 苏欣栋.鄂东南成矿区壳幔结构及其特征[J].地质与勘探,1995,31(1):18-25. [11] 张国胜.鄂东南地区构造特征及其控岩控矿规律[J].湖北地矿,1998,12(2):16-23. [12] 谢桂青.鄂东南地区晚中生代铜铁金多金属矿的区域成矿模型探讨[J].矿物岩石地球化学通报,2013,32(4):418-426. [13] 胡清乐.鄂东南地区中生代成岩成矿构造背景与时空分布规律[J].资源环境与工程,2014,28(6):768-776. [14] 周安保,张国胜,徐磊,等.鄂东南隐伏岩体的推断及其找矿前景[J].资源环境与工程,2013,27(2):120-124. [15] Snezana I,Ivana V,Milenko B,et al.2D geological-geophysical model of the Timok Complex(Serbia,SE Europe):a new perspective from aeromagnetic and gravity data[J].Swiss Journal of Geosciences,2014,107(1):1-12. [16] Zhang X,Zhang D,Tan HD,et al.Geological and Geophysical Model of Thrust Controlling on Iron ore deposits in the Southwestern Fujian Province[J].Earth Science,2012,37(6):1243-1251. [17] Song L J,Zhu J Y. The model of geophysical metallogenic prognosis of Baimazhai nickel-deposit of Jinping county[J].Progress in Geophysics,2004,19(1):186-190. [18] 薛迪康.鄂东南铜金矿成矿模式与找矿模型[M].武汉:中国地质大学出版社,1997.
