山东招远夏甸金矿深部三维成矿可视化定位预测
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摘要
招远夏甸金矿床位于华北板块之胶北隆起区内的招远-平度断裂带(简称招平断裂)中。招平断裂沿玲珑花岗岩体与前寒武纪结晶基底岩系的接触面展布,既是控矿构造,又是导矿和容矿构造,夏甸金矿床主要产于断裂下盘的碎裂状玲珑花岗岩中,在其上盘的基底岩系亦有分布,为一典型的破碎带蚀变岩型金矿床。该文以夏甸金矿田为研究对象,引入三维地质建模(3DGM)及三维可视化技术,研究探索隐伏矿体预测的三维化、定量化及可视化技术,重点突破了复杂地质体三维形态分析、控矿地质因素场模拟、成矿信息三维定量提取等关键技术,初步形成了隐伏矿体三维可视化预测的方法。依据勘探工程数据、矿体圈定规范并结合地质规律进行了矿体三维建模,结合已知的地震、重力、大地电磁等方法获得的各类数据作为研究深部地质构造的基本资料,对深部成矿构造进行了三维重构,对夏甸金矿深部进行了矿化空间分析和三维成矿信息提取,开展了三维定量成矿预测,在此基础上建立了三维定量成矿预测模型。在夏甸金矿田共圈定了Ⅰ号、Ⅱ号两个可视化立体找矿靶区,为今后深部工作优选区位提供了信息资料。
Xiadian gold deposit in Zhaoyuan city is located in Zhaoyuan-Pingdu fault zone in Jiaobei uplift area of North China plate. Zhaoping fault distributes along the contact surface between Linglong granite body and Precambrian crystalline basement rock series, which is not only ore-controlling structure, but also ore-guiding and ore-hosting structure. Xiadian gold deposit occurs mainly in the fractured Linglong granite in the lower wall of the fault, and the basement rock series in the upper wall is also distributed. It is a typical fractured zone altered rock type gold deposit. Taking Xiadian gold field as the research object, by introduing three-dimensional geological modeling(3 DGM), three-dimensional visualization technology, quantitative and visualization technology of the prediction of hidden ore bodies have been studied, key technologies, such as three-dimensional morphological analysis of complex geological bodies, field simulation of ore-controlling geological factors and three-dimensional quantitative extraction of metallogenic information are mainly broken through, and three-dimensional visualization prediction method of hidden ore bodies has been preliminarily formed. Based on exploration data, ore body delineation criteria and geological regularities, three-dimensional modeling has been carried out. Combining with known seismic, gravity and magnetotelluric data, three-dimensional reconstruction of deep metallogenic structures has been carried out, and the mineralization spatial analysis and three-dimensional metallogenic information extraction of deep part in Xiadian gold deposit have been carried out. On the basis of three-dimensional quantitative metallogenic prediction, a three-dimensional quantitative metallogenic prediction model has been established. Two visualized three-dimensional prospecting targets have been delineated in Xiadian gold field. It will provide some references for optimizing the location of deep work in the future.
Xiadian gold deposit in Zhaoyuan city is located in Zhaoyuan-Pingdu fault zone in Jiaobei uplift area of North China plate. Zhaoping fault distributes along the contact surface between Linglong granite body and Precambrian crystalline basement rock series, which is not only ore-controlling structure, but also ore-guiding and ore-hosting structure. Xiadian gold deposit occurs mainly in the fractured Linglong granite in the lower wall of the fault, and the basement rock series in the upper wall is also distributed. It is a typical fractured zone altered rock type gold deposit. Taking Xiadian gold field as the research object, by introduing three-dimensional geological modeling(3 DGM), three-dimensional visualization technology, quantitative and visualization technology of the prediction of hidden ore bodies have been studied, key technologies, such as three-dimensional morphological analysis of complex geological bodies, field simulation of ore-controlling geological factors and three-dimensional quantitative extraction of metallogenic information are mainly broken through, and three-dimensional visualization prediction method of hidden ore bodies has been preliminarily formed. Based on exploration data, ore body delineation criteria and geological regularities, three-dimensional modeling has been carried out. Combining with known seismic, gravity and magnetotelluric data, three-dimensional reconstruction of deep metallogenic structures has been carried out, and the mineralization spatial analysis and three-dimensional metallogenic information extraction of deep part in Xiadian gold deposit have been carried out. On the basis of three-dimensional quantitative metallogenic prediction, a three-dimensional quantitative metallogenic prediction model has been established. Two visualized three-dimensional prospecting targets have been delineated in Xiadian gold field. It will provide some references for optimizing the location of deep work in the future.
引文
[1] 李洪奎,耿科,禚传源,等.胶东金矿构造环境与成矿作用[M].北京:地质出版社,2016:1-8.
[2] 毛先成,邹艳红,陈进,等.隐伏矿体三维可视化预测[M].长沙:中南大学出版社,2011:1-33.
[3] 陈建平,吕鹏,吴文,等,基于三维可视化技术的隐伏矿体预测[J].地学前缘,2007,14(5):54-61.
[4] 毛先成.三维数字矿床与隐伏矿体立体定量预测研究[D].长沙:中南大学,2006:1-18.
[5] 李洪奎,李逸凡,耿科,等.山东鲁东碰撞造山型金矿成矿作用探讨[J].大地构造与成矿学,2011,35(4):533-542.
[6] 李洪奎,禚传源,耿科,等.胶东金矿成矿构造背景探讨[J].山东国土资源,2012,28(1):5-13.
[7] 李洪奎,李大鹏,郭宝奎,等.胶东地区中生代碰撞后到造山后岩浆活动格架[J].岩石学报,2015,31(5):2341-2352.
[8] 李洪奎,李逸凡,耿科,等.山东鲁东地区中生代构造-岩浆事件与金矿成矿作用[J].地球科学前沿,2013,3(3):141-154.
[9] 李逸凡,李洪奎.招远大尹格庄金矿微量元素特征及其意义[J].山东国土资源,2014,30(11):13-19.
[10] 李洪奎,禚传源,单伟.山东招远-平度断裂带二维地震剖面研究及其地质意义[J].地球科学前沿,2015,5(1):12-21.
[11] 李逸凡,李洪奎,汤启云,等.山东旧店金矿黄铁矿标型特征及其地质意义[J].黄金科学技术,2015,23(2):45-50.
[12] 李洪奎,禚传源,单伟,等.山东旧店金矿金矿物特征及其意义[J].山东国土资源,2015,31(5):1-8.
[13] 戴雪灵.山东招远大尹格庄金矿成岩-成矿机理研究[D].长沙:中南大学,2012:1-14.
[14] 李子英,张瑞忠,周春生,等.胶东大尹格庄金矿床控矿构造系统[J].金属矿山,2010(3):86-90.
[15] 刘庚寅,杨斌,陈艳,等.大尹格庄金矿成矿作用与隐伏矿体找矿标志分析[J].矿床地质,2010,29(1):967-968.
[16] 李岭.地质统计学及其在某铜矿山储量计算中的应用[J].矿业研究与开发,2004,24(5):21-23.
[17] 孙英君,王劲峰,柏延臣.地统计学方法进展研究[J].地球科学进展,2004,19(2):268-274.
[18] 孙洪泉.地质统计学及其应用[M].徐州:中国矿业大学出版社,1990:1-282.
[19] 孙立双,毕天平,马运涛,等.一种基于剖面轮廓线进行矿体三维建模的方法[J].沈阳建筑大学学报(自然科学版),2011,27(4):653-658.
[20] 刘海英.多种克里格方法在固矿储量估算中的应用研究[D].北京:中国地质大学,2010:21-32.
[21] 王英杰.多维动态地学信息可视化[M].北京:科学出版社,2003:1-285.
[22] 武强,徐华.三维地质建模与可视化方法研究[J].中国科学:地球科学,2004,34(1):54-60.
[23] 肖克炎,李楠,孙莉,等.基于三维信息技术大比例尺三维立体矿产预测方法及途径[J].地质学刊,2012,36(3):229-236.
[24] 徐述平.招平断裂带金矿勘查模型与成矿预测[D].北京:中国地质大学(北京),2009:1-22.
[25] 严加永,吕庆田,孟贵祥,等.三维可视化及物探新技术在矿山接替资源勘查中的应用——以铜陵狮子山矿田为例[J].地球学报,2008,29(1):116-120.
[2] 毛先成,邹艳红,陈进,等.隐伏矿体三维可视化预测[M].长沙:中南大学出版社,2011:1-33.
[3] 陈建平,吕鹏,吴文,等,基于三维可视化技术的隐伏矿体预测[J].地学前缘,2007,14(5):54-61.
[4] 毛先成.三维数字矿床与隐伏矿体立体定量预测研究[D].长沙:中南大学,2006:1-18.
[5] 李洪奎,李逸凡,耿科,等.山东鲁东碰撞造山型金矿成矿作用探讨[J].大地构造与成矿学,2011,35(4):533-542.
[6] 李洪奎,禚传源,耿科,等.胶东金矿成矿构造背景探讨[J].山东国土资源,2012,28(1):5-13.
[7] 李洪奎,李大鹏,郭宝奎,等.胶东地区中生代碰撞后到造山后岩浆活动格架[J].岩石学报,2015,31(5):2341-2352.
[8] 李洪奎,李逸凡,耿科,等.山东鲁东地区中生代构造-岩浆事件与金矿成矿作用[J].地球科学前沿,2013,3(3):141-154.
[9] 李逸凡,李洪奎.招远大尹格庄金矿微量元素特征及其意义[J].山东国土资源,2014,30(11):13-19.
[10] 李洪奎,禚传源,单伟.山东招远-平度断裂带二维地震剖面研究及其地质意义[J].地球科学前沿,2015,5(1):12-21.
[11] 李逸凡,李洪奎,汤启云,等.山东旧店金矿黄铁矿标型特征及其地质意义[J].黄金科学技术,2015,23(2):45-50.
[12] 李洪奎,禚传源,单伟,等.山东旧店金矿金矿物特征及其意义[J].山东国土资源,2015,31(5):1-8.
[13] 戴雪灵.山东招远大尹格庄金矿成岩-成矿机理研究[D].长沙:中南大学,2012:1-14.
[14] 李子英,张瑞忠,周春生,等.胶东大尹格庄金矿床控矿构造系统[J].金属矿山,2010(3):86-90.
[15] 刘庚寅,杨斌,陈艳,等.大尹格庄金矿成矿作用与隐伏矿体找矿标志分析[J].矿床地质,2010,29(1):967-968.
[16] 李岭.地质统计学及其在某铜矿山储量计算中的应用[J].矿业研究与开发,2004,24(5):21-23.
[17] 孙英君,王劲峰,柏延臣.地统计学方法进展研究[J].地球科学进展,2004,19(2):268-274.
[18] 孙洪泉.地质统计学及其应用[M].徐州:中国矿业大学出版社,1990:1-282.
[19] 孙立双,毕天平,马运涛,等.一种基于剖面轮廓线进行矿体三维建模的方法[J].沈阳建筑大学学报(自然科学版),2011,27(4):653-658.
[20] 刘海英.多种克里格方法在固矿储量估算中的应用研究[D].北京:中国地质大学,2010:21-32.
[21] 王英杰.多维动态地学信息可视化[M].北京:科学出版社,2003:1-285.
[22] 武强,徐华.三维地质建模与可视化方法研究[J].中国科学:地球科学,2004,34(1):54-60.
[23] 肖克炎,李楠,孙莉,等.基于三维信息技术大比例尺三维立体矿产预测方法及途径[J].地质学刊,2012,36(3):229-236.
[24] 徐述平.招平断裂带金矿勘查模型与成矿预测[D].北京:中国地质大学(北京),2009:1-22.
[25] 严加永,吕庆田,孟贵祥,等.三维可视化及物探新技术在矿山接替资源勘查中的应用——以铜陵狮子山矿田为例[J].地球学报,2008,29(1):116-120.