陕西太白地区断裂构造1:5万高精度磁测综合解释及成矿预测
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摘要
太白地区矿产资源丰富,但在过去对秦岭成矿带的详探中,此区域勘探程度较低.经过对太白地区前人地质成果资料的详尽研究后,依靠最新的1∶5万地面高精度磁法测量图,初步查明调查区磁场总体特征及磁异常分布特征.通过对磁异常的研究,了解磁场与构造、岩石及矿产的相关联系,推测断裂构造28条,其中与已知断裂相近的有9条断裂,新推测断裂19条,这些断裂是区内重要的成矿、控矿断裂.由此,以金、铅锌矿为主要勘探目标,并对铜、钼、钴等多种金属矿产展开研究.预测出成矿远景区域,为以后找矿提供思路分析,为该区后续找矿工作的进行提供参考.
The mineral resources of Taibai area are abundant. In the past,however,during the detailed exploration of the Qinling Metallogenic Belt,the regional exploration degree is low. Having studied thoroughly about the previous geological results in Taibai areas and relied on the latest 1 ∶50000 the ground high-precision magnetic measurement, the preliminary research finds out the characteristics of magnetic field as a whole and the distribution of magnetic anomaly. The study of magnetic anomaly helps us understand the relative connections between magnetism and structure,rocks and minerals. From the study,28 fracture structures can be speculated,which are similar to the nine known fractures.The 19 fractures of new speculation are of great importance for mineralization and ore controlling. As a result,gold,lead and zinc should be regarded as the main exploration targets. Moreover,the research of copper,molybdenum,cobalt and other metallic minerals is supposed to go further. The prediction of metallogenic prospective areas offers thinking analysis and reference to the later and further ore-prospecting work in this area.
The mineral resources of Taibai area are abundant. In the past,however,during the detailed exploration of the Qinling Metallogenic Belt,the regional exploration degree is low. Having studied thoroughly about the previous geological results in Taibai areas and relied on the latest 1 ∶50000 the ground high-precision magnetic measurement, the preliminary research finds out the characteristics of magnetic field as a whole and the distribution of magnetic anomaly. The study of magnetic anomaly helps us understand the relative connections between magnetism and structure,rocks and minerals. From the study,28 fracture structures can be speculated,which are similar to the nine known fractures.The 19 fractures of new speculation are of great importance for mineralization and ore controlling. As a result,gold,lead and zinc should be regarded as the main exploration targets. Moreover,the research of copper,molybdenum,cobalt and other metallic minerals is supposed to go further. The prediction of metallogenic prospective areas offers thinking analysis and reference to the later and further ore-prospecting work in this area.
引文
Chen J,Wang W Y,Li Z T,et al.2014.Application of the high-precision magnetic technique to exploration in the Xicheng lead-zinc deposit,Gansu Province[J].Geology and Exploration(in Chinese),50(5):976-983.
Dong Y P,Yang Z,Zhang G W,et al.2008.Geochemistry of the Guanzidian ophiolite in western Qinling and its tectonic significance[J].Acta Geologica Sinica,82(9):1186-1194.
Dong Y P,Zhang G W,Yang Z,et al.2007.E-MORB Ophiolite and Related Volcanic Geochemistry of Wushan,Western Qinling[J].Science China(Series D):Earth Sciences,37(S1):199-208.
Dong Y P,Zhang G W,Zhao Z,et al.2003a.Northern Qinling Proterozoic Tectonic Framework and Evolution[J].Geotectonica Et Matallogenia,27(2):115-124.
Dong Y P,Zhang G W,Zhao X,et al.2003b.Geochemistry of the Dahongshan Magmatic Belt in North Hubei and Its Tectonic Significance-New evidence of eastward extension and subduction of the Mianlao oceanic basins in South Qinling[J].Science China(Series D):Earth Sciences,33(12):1143-1153.
Dong Y P,Zhang G W,Zhu B Q.2003c.Structural Properties of the North Qinling and Proterozoic Tectonic Evolution[J].Acta Geosicientia Sinica,24(1):3-10.
Lang X H,Tang J X,Xie F W,et al.,2014.Characteristics of ground magnetic anomalies and their significance for ore prospecting in the Xiongcun district of Tibet[J].Geology and Exploration(in Chinese),50(3):411-418.
Li S C,Chen Y B,Zhao Y Q,et al.2005.Relationship between oreforming process and regional tectonic evolution of ophiolitic mixtite belt in northern West Qinling region[J].Mineral Deposits(in Chinese),24(6):656-662.
Liu J J,Zheng M H,Liu J M,et al.1997.Geotectonic Evolution and Distribution of Gold Metallogenic Belts in West Qinling[J].Geotectonica Et Matallogenia,21(4):307-314.
Lu X X.1998.The Qinling Ridge Tectonic Evolution Revealed by Qinling Granite-Research Progress of Qinling Granite[J].Advance In Earth Sciences,13(2):213-214.
Pei X Z,Ding S P,Li Z C,et al.2009.Early Paleozoic Tianshui-Wushan tectonic zone of the northern margin of west Qinling and itstectonic evolution[J].Acta Geologica Sinica(in Chinese),83(11):1547-1564.
Xu X Y,Chen J L,Gao T,et al.2014.Granitoid magmatism and tectonic evolution in northern edge of the Western Qinling terrane[J].Acta Petrologica Sinica(in Chinese).30(2):371-389.
Zhang G W,Dong Y P,Lai S C,et al.2003.Qinling-the southern margin of the Dabie orogenic belt and Mian-lue suture zone[J].Science China(Series D),33(12):1121-1135.
Zhang G W,Dong Y P,YAO A P.2001.Review on the development of studies on the tectonic and orogen process of orogenic belt,and discussing on some new key problems[J].Northwestern Geology(in Chinese),34(1):1-9.
Zhang G W,Guo A L,Liu F T,et al.1996.Three Dimensional Structure and Dynamics Analysis of Qinling Orogenic Belt[J].Science China(Series D),26(S1):1-6.
Zhu D L,Sun B N,Yan D F,et al.2012.The tectonic evolution of the Xicheng Ore Concentrated Area in Qinling Mountain and its relation to Lead-Zinc mineralization[J].Acta Geologica Sinica(in Chinese),86(8):1291-1297.
陈靖,王万银,李增涛,等.2014.高精度磁测技术在甘肃西成铅锌矿勘探中的应用[J].地质与勘探,50(5):976-983.
董云鹏,杨钊,张国伟,等.2008.西秦岭关子镇蛇绿岩地球化学及其大地构造意义[J].地质学报,82(9):1186-1194.
董云鹏,张国伟,杨钊,等.2007.西秦岭武山E-MORB型蛇绿岩及相关火山岩地球化学[J].中国科学D辑:地球科学,37(S1):199-208.
董云鹏,张国伟,赵霞,等.2003a.北秦岭元古代构造格架与演化[J].大地构造与成矿学,27(2):115-124.
董云鹏,张国伟,赵霞,等.2003b.鄂北大洪山岩浆带地球化学及其构造意义---南秦岭勉略洋盆东延及其俯冲的新证据[J].中国科学(D辑),33(12):1143-1153.
董云鹏,张国伟,朱炳泉.2003c.北秦岭构造属性与元古代构造演化[J].地球学报,24(1):3-10.
郎兴海,唐菊兴,谢富伟,等.2014.西藏雄村矿区地面磁测异常特征及其对找矿方向的指示[J].地质与勘探,50(3):411-418.
李锁成,陈永彬,赵彦庆,等.2005.西秦岭北部蛇绿混杂岩带成矿作用与区域构造演化的关系[J].矿床地质,24(6):656-662.
刘家军,郑明华,刘建明,等.1997.西秦岭大地构造演化与金成矿带的分布[J].大地构造与成矿学,21(4):307-314.
卢欣祥.1998.秦岭花岗岩揭示的秦岭构造演化过程---秦岭花岗岩研究进展[J].地球科学进展,13(2):213-214.
裴先治,丁仨平,李佐臣,等.2009.西秦岭北缘早古生代天水-武山构造带及其构造演化[J].地质学报,83(11):1547-1564.
徐学义,陈隽璐,高婷,等.2014.西秦岭北缘花岗质岩浆作用及构造演化[J].岩石学报,30(2):371-389.
张国伟,董云鹏,赖绍聪,等.2003.秦岭-大别造山带南缘勉略构造带与勉略缝合带[J].中国科学(D辑),33(12):1121-1135.
张国伟,董云鹏,姚安平.2001.造山带与造山作用及其研究的新起点[J].西北地质,34(1):1-9.
张国伟,郭安林,刘福田,等.1996.秦岭造山带三维结构及其动力学分析[J].中国科学(D辑),26(S1):1-6.
朱多录,孙柏年,闫德飞,等.2012.秦岭西成矿集区构造演化与铅锌成矿关系[J].地质学报,86(8):1291-1297.
Dong Y P,Yang Z,Zhang G W,et al.2008.Geochemistry of the Guanzidian ophiolite in western Qinling and its tectonic significance[J].Acta Geologica Sinica,82(9):1186-1194.
Dong Y P,Zhang G W,Yang Z,et al.2007.E-MORB Ophiolite and Related Volcanic Geochemistry of Wushan,Western Qinling[J].Science China(Series D):Earth Sciences,37(S1):199-208.
Dong Y P,Zhang G W,Zhao Z,et al.2003a.Northern Qinling Proterozoic Tectonic Framework and Evolution[J].Geotectonica Et Matallogenia,27(2):115-124.
Dong Y P,Zhang G W,Zhao X,et al.2003b.Geochemistry of the Dahongshan Magmatic Belt in North Hubei and Its Tectonic Significance-New evidence of eastward extension and subduction of the Mianlao oceanic basins in South Qinling[J].Science China(Series D):Earth Sciences,33(12):1143-1153.
Dong Y P,Zhang G W,Zhu B Q.2003c.Structural Properties of the North Qinling and Proterozoic Tectonic Evolution[J].Acta Geosicientia Sinica,24(1):3-10.
Lang X H,Tang J X,Xie F W,et al.,2014.Characteristics of ground magnetic anomalies and their significance for ore prospecting in the Xiongcun district of Tibet[J].Geology and Exploration(in Chinese),50(3):411-418.
Li S C,Chen Y B,Zhao Y Q,et al.2005.Relationship between oreforming process and regional tectonic evolution of ophiolitic mixtite belt in northern West Qinling region[J].Mineral Deposits(in Chinese),24(6):656-662.
Liu J J,Zheng M H,Liu J M,et al.1997.Geotectonic Evolution and Distribution of Gold Metallogenic Belts in West Qinling[J].Geotectonica Et Matallogenia,21(4):307-314.
Lu X X.1998.The Qinling Ridge Tectonic Evolution Revealed by Qinling Granite-Research Progress of Qinling Granite[J].Advance In Earth Sciences,13(2):213-214.
Pei X Z,Ding S P,Li Z C,et al.2009.Early Paleozoic Tianshui-Wushan tectonic zone of the northern margin of west Qinling and itstectonic evolution[J].Acta Geologica Sinica(in Chinese),83(11):1547-1564.
Xu X Y,Chen J L,Gao T,et al.2014.Granitoid magmatism and tectonic evolution in northern edge of the Western Qinling terrane[J].Acta Petrologica Sinica(in Chinese).30(2):371-389.
Zhang G W,Dong Y P,Lai S C,et al.2003.Qinling-the southern margin of the Dabie orogenic belt and Mian-lue suture zone[J].Science China(Series D),33(12):1121-1135.
Zhang G W,Dong Y P,YAO A P.2001.Review on the development of studies on the tectonic and orogen process of orogenic belt,and discussing on some new key problems[J].Northwestern Geology(in Chinese),34(1):1-9.
Zhang G W,Guo A L,Liu F T,et al.1996.Three Dimensional Structure and Dynamics Analysis of Qinling Orogenic Belt[J].Science China(Series D),26(S1):1-6.
Zhu D L,Sun B N,Yan D F,et al.2012.The tectonic evolution of the Xicheng Ore Concentrated Area in Qinling Mountain and its relation to Lead-Zinc mineralization[J].Acta Geologica Sinica(in Chinese),86(8):1291-1297.
陈靖,王万银,李增涛,等.2014.高精度磁测技术在甘肃西成铅锌矿勘探中的应用[J].地质与勘探,50(5):976-983.
董云鹏,杨钊,张国伟,等.2008.西秦岭关子镇蛇绿岩地球化学及其大地构造意义[J].地质学报,82(9):1186-1194.
董云鹏,张国伟,杨钊,等.2007.西秦岭武山E-MORB型蛇绿岩及相关火山岩地球化学[J].中国科学D辑:地球科学,37(S1):199-208.
董云鹏,张国伟,赵霞,等.2003a.北秦岭元古代构造格架与演化[J].大地构造与成矿学,27(2):115-124.
董云鹏,张国伟,赵霞,等.2003b.鄂北大洪山岩浆带地球化学及其构造意义---南秦岭勉略洋盆东延及其俯冲的新证据[J].中国科学(D辑),33(12):1143-1153.
董云鹏,张国伟,朱炳泉.2003c.北秦岭构造属性与元古代构造演化[J].地球学报,24(1):3-10.
郎兴海,唐菊兴,谢富伟,等.2014.西藏雄村矿区地面磁测异常特征及其对找矿方向的指示[J].地质与勘探,50(3):411-418.
李锁成,陈永彬,赵彦庆,等.2005.西秦岭北部蛇绿混杂岩带成矿作用与区域构造演化的关系[J].矿床地质,24(6):656-662.
刘家军,郑明华,刘建明,等.1997.西秦岭大地构造演化与金成矿带的分布[J].大地构造与成矿学,21(4):307-314.
卢欣祥.1998.秦岭花岗岩揭示的秦岭构造演化过程---秦岭花岗岩研究进展[J].地球科学进展,13(2):213-214.
裴先治,丁仨平,李佐臣,等.2009.西秦岭北缘早古生代天水-武山构造带及其构造演化[J].地质学报,83(11):1547-1564.
徐学义,陈隽璐,高婷,等.2014.西秦岭北缘花岗质岩浆作用及构造演化[J].岩石学报,30(2):371-389.
张国伟,董云鹏,赖绍聪,等.2003.秦岭-大别造山带南缘勉略构造带与勉略缝合带[J].中国科学(D辑),33(12):1121-1135.
张国伟,董云鹏,姚安平.2001.造山带与造山作用及其研究的新起点[J].西北地质,34(1):1-9.
张国伟,郭安林,刘福田,等.1996.秦岭造山带三维结构及其动力学分析[J].中国科学(D辑),26(S1):1-6.
朱多录,孙柏年,闫德飞,等.2012.秦岭西成矿集区构造演化与铅锌成矿关系[J].地质学报,86(8):1291-1297.