台上金矿床处于玲珑金矿田最南端,受招(远)—平(度)断裂北东段破头青断裂控制。台上金矿床是玲珑金矿田中“焦家式”金矿床的典型产地。通过近年来的深部找矿探索,截至2015年,台上金矿床累计探明金金属量超过340 t。本次对台上金矿床深部和浅部找矿经验加以总结分析对比,揭示了新的成矿规律:金矿体受沿玲珑序列与文登序列花岗岩接触带展布的破头青断裂及其蚀变带控制;往往在蚀变带产状变化处变化巨大;深部靠近主断裂蚀变带附近上下盘,较发育其他断裂蚀变带及脉岩;蚀变带深部比浅部有变宽趋势;矿体走向延长远小于倾向延深。
Located at the southernmost point of Linglong Gold Field,Taishang Gold Deposit is controlled by Po-touqing Fracture,which is the northeastern part of Zhaoyuan-Pingdu Fracture.Being a typical occurrence site for the"Jiaojia type"gold deposits,and through prospecting in its deep part in recent years,the Taishang Gold Deposit has accumulated a proved gold reserve of 340 t by 2015.In this paper,the experience of prospecting in this deposit's deep and shallow parts has been concluded,analyzed and compared,revealing a new ore-forming rule:the gold ore bodies are controlled by Potouqing Fracture and its alteration zones,which distribute along the contact zone of Linglong Se-quence and Wendeng Sequence granite;the gold orebodies often vary largely at the places where the occurrence status of the alteration zones varies; in the deep part, close to the hanging wall or footwall of the main fracture alteration zone,developed other fracture alteration zones and vein rocks,and the deep part of the alteration zones has a more ob-vious trend of becoming wider than the shallow part;the ore bodies extend far shorter along the strike direction than the dip direction.
参考文献
[1] | 李景春;赵爱林;金成洙.划分金矿化集中区的基本准则[J].地质与资源,2002(3):184-187. |
[2] | 杨金中;沈远超;刘铁兵.大型-超大型金矿密集区的形成条件[J].地质与勘探,2001(1):27-29. |
[3] | 李京濂;李金奎;王中亮;张良;刘跃;郭林楠;李瑞红;姜书伟.山东招远台上金矿床矿体特征及重新圈定[J].中国科技信息,2013(5):33-34. |
[4] | 戴立新;宿晓静;马德云;尹波.玲珑金矿田金矿成矿地质背景特征研究[J].黄金,2007(11):5-10. |
[5] | 王超凡;吕古贤;吴学益;申玉科.玲珑金矿田控岩控矿破头青断裂地球化学特征[J].矿物学报,2009(z1):564-565. |
[6] | 林文蔚;赵一鸣;徐珏.胶东招远-平度断裂活动性质及活动时代[J].中国区域地质,2000(1):43-50. |
[7] | 孙景贵;胡受奚;赵懿英;姚凤良.初论胶东地区金矿成矿模式[J].矿床地质,2000(1):26-36. |
[8] | 宋明春;崔书学;周明岭;姜洪利;袁文花;魏绪峰;吕古贤.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(9):1349-1358. |
[9] | 刘晓煌;张效智;哈本海;宋泉吾;戴立新;高池兴.招平断裂带地质特征及成矿预测浅析[J].黄金,2003(12):10-13. |
[10] | 姜维明;杜中柱;张光安;孙健;吕军恩;许建波;原少波;刘文利;路仁兵.破头青断裂对玲珑金矿田矿体的控制作用浅析[J].黄金科学技术,2011(6):31-35. |
[11] | 刘日富;蔡小宁.三山岛-仓上、新城-焦家成矿带深部找矿理论与实践[J].黄金科学技术,2008(4):29-32. |
[12] | 周凤英;李兆麟.胶东台上金矿成矿机制模拟实验研究[J].地质论评,1994(5):456-465. |
[13] | 王义文;朱奉三;宫润谭.构造同位素地球化学--胶东金矿集中区硫同位素再研究[J].黄金,2002(4):1-16. |
[14] | 冯涛;孙宗锋;李文;刘日富;蔡小宁.山东玲珑金矿田东风矿区171号金矿脉地质特征及深部资源预测[J].黄金科学技术,2009(6):12-16. |
[15] | 孟良义.石英脉型、蚀变岩型金矿床的成矿模式[J].科学通报,1995(17):1588-1589. |
[16] | 王世进;万渝生;宋志勇;王伟;董春艳;张贵丽.鲁东文登地区文登型(超单元)花岗岩体的SHRIMP锆石年代学[J].山东国土资源,2012(2):1-5,10. |
[17] | 王世进;万渝生;郭瑞朋;宋志勇;王立法.鲁东地区玲珑型(超单元)花岗岩的锆石SHRIMP定年[J].山东国土资源,2011(4):1-7. |
[18] | 毛景文;李厚民;王义天;张长青;王瑞廷.地幔流体参与胶东金矿成矿作用的氢氧碳硫同位素证据[J].地质学报,2005(6):839-857. |
[19] | 杜松金;李洪喜;张庆龙;杜菊民;解国爱.山东招远玲珑金矿田控矿构造及其形成机制[J].高校地质学报,2003(3):420-426. |
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