山东省莱州市招贤金矿区矿体特征与找矿前景
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摘要
近年来,焦家金成矿带深部找矿取得重大突破。山东省地质调查院在莱州招贤地区,对焦家带深部(赋存标高-1 260m~-2 170m)开展找矿工作,圈定金矿体27个。矿体受焦家断裂的破碎蚀变岩带控制,主要赋存于黄铁绢英岩化碎裂岩及花岗质碎裂岩带内,其中规模达第Ⅰ勘查类型的矿体3个。提交金矿(333+334?)金金属量105t,另有低品位金金属量近50t。该文对焦家带深部金矿体矿体特征、赋存情况等进行研究,发现矿区内主矿体向深部尚未封闭,尤其是72~88线、288~320线,矿体向深部有厚度变大,品位增高的趋势,且在320线深部矿体中发现了自然金,显示了焦家成矿带深部具有良好的找矿远景,为打造胶东深部找矿示范区提供重要参考。
In recent years,significant breakthroughs of deep prospecting in Jiaojia gold metallogenic belt has been made.Geological survey has been carried out in the deep part of Jiaojia belt(-1 260 m~-2 170 m)by Shandong Geological Surveying Institute in Zhaoxian area in Laizhou city of Shandong province.27 gold bodies have been delineated.The ore bodies are controlled by the fractured and altered rock zone of Jiaojia fault,which mainly occurs in the Yellowish sericite rock fractured rock.The scale of 3 ore bodies can reachⅠexploration type.Submitting gold metal volume(333+334?)is 105 t,and the volume with low grade gold metal is nearly 50 t.In this paper,the characteristics and occurrence of the deep gold ore body in Jiaojia belt have been studied,and some suggestions of key areas in the deep prospecting of the gold deposit in this area has been put forward.It will provide an important reference for building the deep prospecting demonstration area in Jiaodong region.
In recent years,significant breakthroughs of deep prospecting in Jiaojia gold metallogenic belt has been made.Geological survey has been carried out in the deep part of Jiaojia belt(-1 260 m~-2 170 m)by Shandong Geological Surveying Institute in Zhaoxian area in Laizhou city of Shandong province.27 gold bodies have been delineated.The ore bodies are controlled by the fractured and altered rock zone of Jiaojia fault,which mainly occurs in the Yellowish sericite rock fractured rock.The scale of 3 ore bodies can reachⅠexploration type.Submitting gold metal volume(333+334?)is 105 t,and the volume with low grade gold metal is nearly 50 t.In this paper,the characteristics and occurrence of the deep gold ore body in Jiaojia belt have been studied,and some suggestions of key areas in the deep prospecting of the gold deposit in this area has been put forward.It will provide an important reference for building the deep prospecting demonstration area in Jiaodong region.
引文
[1]宋明春,崔书学,杨之利,等.山东焦家金矿带深部找矿的重大突破及其意义[J].地质与勘探,2008,44(1):1-8.
[2]李宏骥.胶北地区内生金矿成矿规律[J].山东地质,2002,18(3-4):72-77.
[3]宋明春.胶东金矿深部找矿主要成果和关键理论技术进展[J].地质通报,2015,34(9):1758-1771.
[4]李士先,刘长春,安郁宏,等.胶东金矿地质[M].北京:地质出版社,2007:1-101.
[5]于学峰,李大鹏,田京祥,等.山东金矿深部勘查进展与成矿理论创新[J].山东国土资源,2018,34(5):1-13.
[6]杨真亮,解天赐,刘天鹏,等.焦家成矿带Ⅲ号矿体群成矿特征浅析及其找矿意义[J].山东国土资源,2017,33(9):14-18.
[7]杨真亮,宋国政,高书剑,等.焦家带(1)号分支蚀变带的研究及其地质特征浅析[J].山东国土资源,2017,33(1):36-39.
[8]熊玉新,于学峰,迟乃杰,等.焦家金矿带3 000m科研深钻地球物理测井及初步分析[J].山东国土资源,2018,34(5):66-73.
[9]杨之利,张旭,姜洪利.山东省莱州市寺庄金矿床地质特征[J].山东国土资源,2007,23(5):6-10.
[10]鲍中义,钮涛,高书剑,等.焦家金矿床深部矿体地质特征及深部成矿预测[J].山东国土资源,2010,26(1):6-10.
[11]高书剑,魏绪峰,孙瑞刚,等.莱州马塘金矿地质特征与深部找矿远景[J].山东国土资源,2010,26(6):7-17.
[12]宋国政,杨真亮,李瑞翔,等.莱州市纱岭矿区金矿地质特征及其找矿前景[J].山东国土资源,2016,32(10):1-4.
[13]祝德成,刘汉栋,祝培刚,等.焦家断裂带南段深部地球物理地球化学特征与找矿方向[J].山东国土资源,2017,33(12):6-12.
[14]贺春艳,郭国强,刘聪伟,等.焦家断裂带南部覆盖区控矿构造带的研究及成矿前景分析[J].山东国土资源,2015,31(7):19-24.
[15]曹秀华,孟庆旺,曹亚阳.综合物探方法在焦家断裂南段金矿找矿中的应用[J].山东国土资源,2016,32(8):66-73.
[16]宋明春,崔书学,周明岭,等.山东省焦家矿区深部超大型金矿床及其对“焦家式”金矿的启示[J].地质学报,2010,84(9):1349-1356.
[17]孙涛,王长涛,王海正.焦家断裂带河西断裂东段走向研究及其控矿特征[J].山东国土资源,2018,34(2):8-12.
[18]范永香,周群辉.山东焦家金矿床成矿地球化学特征及成矿机理[J].地球科学,1987,12(4):414-424.
[19]吕古贤,孙之夫,赵海,等.胶东焦家金矿田地质特征、成矿规律与深部预测[J].矿物学报,2011(S1):969-970.
[20]李俊建,罗镇宽,刘晓阳,等.胶东中生代花岗岩及大型-超大型金矿床形成的地球动力学环境[J].矿床地质,2005,24(4):361-372.
[21]邓军,王庆飞,杨立强,等.胶西北金矿集区成矿作用发生的地质背景[J].地质学刊,2014,38(3):412-420.
[22]王巧云,刘汉栋,陈建平,等.山东焦家金成矿带三维地质建模及成矿预测[J].地学前缘,2004,11(4):527-533.
[23]史蕊,陈建平,刘汉栋,等.山东焦家金成矿带三维预测模型及靶区优选[J].现代地质,2014,28(4):743-749.
(1)山东省地质调查院,山东省莱州市招贤地区金矿普查报告,2017年。
(1)山东省地质调查院,山东省莱州-招远整装勘查区深部远景调查报告,2016年。
[2]李宏骥.胶北地区内生金矿成矿规律[J].山东地质,2002,18(3-4):72-77.
[3]宋明春.胶东金矿深部找矿主要成果和关键理论技术进展[J].地质通报,2015,34(9):1758-1771.
[4]李士先,刘长春,安郁宏,等.胶东金矿地质[M].北京:地质出版社,2007:1-101.
[5]于学峰,李大鹏,田京祥,等.山东金矿深部勘查进展与成矿理论创新[J].山东国土资源,2018,34(5):1-13.
[6]杨真亮,解天赐,刘天鹏,等.焦家成矿带Ⅲ号矿体群成矿特征浅析及其找矿意义[J].山东国土资源,2017,33(9):14-18.
[7]杨真亮,宋国政,高书剑,等.焦家带(1)号分支蚀变带的研究及其地质特征浅析[J].山东国土资源,2017,33(1):36-39.
[8]熊玉新,于学峰,迟乃杰,等.焦家金矿带3 000m科研深钻地球物理测井及初步分析[J].山东国土资源,2018,34(5):66-73.
[9]杨之利,张旭,姜洪利.山东省莱州市寺庄金矿床地质特征[J].山东国土资源,2007,23(5):6-10.
[10]鲍中义,钮涛,高书剑,等.焦家金矿床深部矿体地质特征及深部成矿预测[J].山东国土资源,2010,26(1):6-10.
[11]高书剑,魏绪峰,孙瑞刚,等.莱州马塘金矿地质特征与深部找矿远景[J].山东国土资源,2010,26(6):7-17.
[12]宋国政,杨真亮,李瑞翔,等.莱州市纱岭矿区金矿地质特征及其找矿前景[J].山东国土资源,2016,32(10):1-4.
[13]祝德成,刘汉栋,祝培刚,等.焦家断裂带南段深部地球物理地球化学特征与找矿方向[J].山东国土资源,2017,33(12):6-12.
[14]贺春艳,郭国强,刘聪伟,等.焦家断裂带南部覆盖区控矿构造带的研究及成矿前景分析[J].山东国土资源,2015,31(7):19-24.
[15]曹秀华,孟庆旺,曹亚阳.综合物探方法在焦家断裂南段金矿找矿中的应用[J].山东国土资源,2016,32(8):66-73.
[16]宋明春,崔书学,周明岭,等.山东省焦家矿区深部超大型金矿床及其对“焦家式”金矿的启示[J].地质学报,2010,84(9):1349-1356.
[17]孙涛,王长涛,王海正.焦家断裂带河西断裂东段走向研究及其控矿特征[J].山东国土资源,2018,34(2):8-12.
[18]范永香,周群辉.山东焦家金矿床成矿地球化学特征及成矿机理[J].地球科学,1987,12(4):414-424.
[19]吕古贤,孙之夫,赵海,等.胶东焦家金矿田地质特征、成矿规律与深部预测[J].矿物学报,2011(S1):969-970.
[20]李俊建,罗镇宽,刘晓阳,等.胶东中生代花岗岩及大型-超大型金矿床形成的地球动力学环境[J].矿床地质,2005,24(4):361-372.
[21]邓军,王庆飞,杨立强,等.胶西北金矿集区成矿作用发生的地质背景[J].地质学刊,2014,38(3):412-420.
[22]王巧云,刘汉栋,陈建平,等.山东焦家金成矿带三维地质建模及成矿预测[J].地学前缘,2004,11(4):527-533.
[23]史蕊,陈建平,刘汉栋,等.山东焦家金成矿带三维预测模型及靶区优选[J].现代地质,2014,28(4):743-749.
(1)山东省地质调查院,山东省莱州市招贤地区金矿普查报告,2017年。
(1)山东省地质调查院,山东省莱州-招远整装勘查区深部远景调查报告,2016年。