甘肃北山和金川与铜镍矿床有关的超基性岩与全球板内环境超基性岩的对比:大数据研究的初步结果
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摘要
在收集甘肃北山和金川地区与铜镍硫化物矿床有关的超基性岩数据的基础上,与GEOROC和PetDB两个数据库中的全球板内超基性岩数据进行对比,发现甘肃北山、金川地区与铜镍有关的超基性岩与全球板内超基性岩各元素平均值较接近(除稍富集LILE之外),而北山地区以高的Th/Nb和富集HREE与金川区分,同时Cu、Cs、Nb、Ta、Rb/Nb、CaO/REE等元素或元素比可作为甘肃北山和金川地区超基性岩是否含矿的重要地球化学标志。皮尔逊相关系数研究表明,虽然甘肃北山和金川地区与铜镍硫化物矿床有关的超基性岩的产出位置、形成时代及源区特征均不同,但是具有很高的地球化学相关性,而WPU(板内超基性岩)与WPUT(大陆溢流、大陆裂谷和板内超基性岩合并)及WPU中坐标值相近的数据相关性较差。WPUT内部本身相似性极差,但其平均值却与甘肃北山和金川地区的超基性岩相似性极高。同时,笔者选取了白石泉、石西、葫芦、黄山东等26个与铜镍硫化物矿床有关的超基性岩数据,与甘肃北山、金川铜镍硫化物矿床有关的超基性岩数据进行比对,整体显示出极高的相关性。因此我们推断与铜镍硫化物矿床有关的超基性岩在形成过程中虽受到其他地质作用的改造,但总体上具相似的地球化学特征。
In this study,we collected data on the ultrabasic rocks related to Cu-Ni ore in Beishan and Jinchuan,Gansu Province and compared with that of the global intra-plate ultrabasic(WPU)rock collection in the GEOROC and PetDB databases.We found that in Beishan and Jinchuan ultrabasic rocks,the average elemental contents related to Cu-Ni were close to that of WPU(except for the slightly enriched LILE).Therefore,elements Cu,Cs,Nb and Ta or elemental pairs Rb/Nb,CaO in ultrabasic rocks can be used as important geochemical prospecting indicators for the Beishan and Jinchuan ultrabasic ore deposits.Beishan is distinguished from Jinchuan by high Th/Nb ratio and HREE enrichment.Our Pearson correlation coefficient study further indicated that the two ultrabasic rocks have different distribution,formation age and source area characteristics but are highly correlated geochemically,whereas for total WPU(WPUT)or WPU of similar coordinates the correlation is relatively poor.However,despite extremely low geochemical similarity for WPUT,the average geochemical characteristics of WPU is similar to the Beishan and Jinchuan ultrabasic rocks.Meanwhile,we examined the data of 26 basic-ultrabasic rocks related to Cu-Ni sulfide deposits in the areas of Baishiquan,Shixi,Hulu,east of Huangshan,etc.,and compare them with that of basic-ultrabasic rocks associated with the Beishan and Jinchuan Cu-Ni sulfide deposits in Gansu.We found still an extremely high overall correlation.Therefore,we conclude that the ultrabasic rocks associated with Cu-Ni sulfide deposits share some geochemical similarities provided with modifications by other effects during the formation processes.
In this study,we collected data on the ultrabasic rocks related to Cu-Ni ore in Beishan and Jinchuan,Gansu Province and compared with that of the global intra-plate ultrabasic(WPU)rock collection in the GEOROC and PetDB databases.We found that in Beishan and Jinchuan ultrabasic rocks,the average elemental contents related to Cu-Ni were close to that of WPU(except for the slightly enriched LILE).Therefore,elements Cu,Cs,Nb and Ta or elemental pairs Rb/Nb,CaO in ultrabasic rocks can be used as important geochemical prospecting indicators for the Beishan and Jinchuan ultrabasic ore deposits.Beishan is distinguished from Jinchuan by high Th/Nb ratio and HREE enrichment.Our Pearson correlation coefficient study further indicated that the two ultrabasic rocks have different distribution,formation age and source area characteristics but are highly correlated geochemically,whereas for total WPU(WPUT)or WPU of similar coordinates the correlation is relatively poor.However,despite extremely low geochemical similarity for WPUT,the average geochemical characteristics of WPU is similar to the Beishan and Jinchuan ultrabasic rocks.Meanwhile,we examined the data of 26 basic-ultrabasic rocks related to Cu-Ni sulfide deposits in the areas of Baishiquan,Shixi,Hulu,east of Huangshan,etc.,and compare them with that of basic-ultrabasic rocks associated with the Beishan and Jinchuan Cu-Ni sulfide deposits in Gansu.We found still an extremely high overall correlation.Therefore,we conclude that the ultrabasic rocks associated with Cu-Ni sulfide deposits share some geochemical similarities provided with modifications by other effects during the formation processes.
引文
[1] LIU X Y,ZHANG Q,ZHANG C L,et al.Global major events in Miocene and its significance:revelation from data mining[J].Chinese Science Bulletin,2017,62(15):1645-1654.
[2]安屹,杨婧,陈万峰,等.N-MORB、E-MORB和OIB的区别及其可能的原因:大数据的启示[J].地质科学,2017,52(3):727-742.
[3]陈万峰,王金荣,张旗,等.洋岛和洋底高原玄武岩数据挖掘:地球化学特征及其与MORB的对比[J].地质学报,2017,91(11):2443-2455.
[4]王金荣,陈万峰,张旗,等.N-MORB和E-MORB数据挖掘:玄武岩判别图及洋中脊源区地幔性质的讨论[J].岩石学报,2017,33(3):993-1005.
[5]杨婧,王金荣,张旗,等.全球岛弧玄武岩数据挖掘:在玄武岩判别图上的表现及初步解释[J].地质通报,2016,35(12):1937-1949.
[6]郭佳磊,巫建华,郭恒飞,等.中国东部铀成矿带中酸性岩与全球A型花岗岩对比[J].矿物岩石地球化学通报,2017,36(6):897-904.
[7]李晓晖,袁峰,马良,等.三维成矿定量预测系统设计与应用实例研究[J].地质科学,2017,52(3):755-770.
[8]刘学龙,李文昌,张娜,等.滇西北普朗斑岩铜矿与成矿有关的花岗岩与全球埃达克岩的对比:大数据研究的初步结果[J].岩石学报,2018,34(2):289-302.
[9]罗建民,张琪,宋秉田,等.物化探信息综合处理在找矿靶区定量优选中的应用[J].矿物岩石地球化学通报,2017,36(6):886-890.
[10] SONG D,XIAO W,HAN C,et al.Progressive accretionary tectonics of the Beishan orogenic collage,southern Altaids:insights from zircon U-Pb and Hf isotopic data of high-grade complexes[J].Precambrian Research,2013,227(1):368-388.
[11] SONG D,XIAO W,HAN C,et al.Provenance of metasedimentary rocks from the Beishan orogenic collage,southern Altaids:constraints from detrital zircon U-Pb and Hf isotopic data[J].Gondwana Research,2013,24(3/4):1127-1151.
[12] TIAN Z,XIAO W,WINDLEY B F,et al.Structure,age,and tectonic development of the Huoshishan-Niujuanziophiolitic mélange,Beishan,southernmost Altaids[J].Gondwana Research,2014,25(2):820-841.
[13] XIAO W J,MAO Q G,WINDLEY B F,et al.Paleozoic multiple accretionary and collisional processes of the Beishan orogenic collage[J].American Journal of Science,2011,310(10):1553-1594.
[14]龚全胜,刘明强,梁明宏,等.北山造山带大地构造相及构造演化[J].西北地质,2003,36(1):11-17.
[15]聂凤军.北山地区金属矿床成矿规律及找矿方向[M].地质出版社,2002.
[16]杨合群,李英,赵国斌,等.北山蛇绿岩特征及构造属性[J].西北地质,2010,43(1):26-36.
[17]左国朝,刘义科,刘春燕.甘新蒙北山地区构造格局及演化[J].甘肃地质,2003(1):1-15.
[18] XIE W,SONG X Y,DENG Y F,et al.Geochemistry and petrogenetic implications of a Late Devonian mafic-ultramafic intrusion at the southern margin of the Central Asian Orogenic Belt[J].Lithos,2012,144/145(2):209-230.
[19]李丽,杨永强,王育习.甘肃北山地区怪石山含铜镍矿化镁铁质-超镁铁质杂岩体的地球化学特征及成因机制[J].世界地质,2010,29(1):16-27.
[20]谢燮,杨建国,王小红,等.甘肃北山大山头:带铜镍矿化基性-超基性岩地质、地球化学特征及成矿潜力[J].新疆地质,2013,31(4):353-359.
[21]谢燮,杨建国,王小红,等.甘肃北山红柳沟铜镍矿化基性-超基性岩体SHRIMP锆石U-Pb年龄及其地质意义[J].中国地质,2015,42(2):396-405.
[22]闫海卿,赵焕强,丁瑞颖,等.甘肃北山大山头基性杂岩体SHRIMP锆石U-Pb年龄及其地质意义[J].西北地质,2012,45(4):216-228.
[23]杨建国,王磊,王小红,等.甘肃北山地区黑山铜镍矿化基性-超基性杂岩体SHRIMP锆石U-Pb定年及其地质意义[J].地质通报,2012,31(2):448-454.
[24]徐刚.甘肃北山地区黑山铜镍硫化物矿床成矿作用研究[D].西安:长安大学,2013.
[25]张新虎,冯军,殷勇,等.甘肃肃北黑山镍铜矿床产出特征及对比研究[J].西北地质,2012,45(4):134-144.
[26]杨建国,翟金元,杨宏武,等.甘肃北山地区花牛山铅锌矿区玄武岩锆石LA-ICP-MS U-Pb定年及其地质意义[J].地质通报,2010,29(7):1017-1023.
[27]左国朝.北山板块构造及成矿规律[M].北京:北京大学出版社,1990.
[28]江磊.甘肃北山红柳沟铜镍矿地球化学特征及成矿潜力[D].西安:长安大学,2014:41-50.
[29]闫海卿,胡彦强,汤中立,等.甘肃北山大山头杂岩体地球化学特征与构造背景[J].矿物学报,2011,31(增刊):419-420.
[30]邓晋福,莫宣学.火成岩构造组合与壳幔成矿系统[J].地学前缘,1999,6(2):259-270.
[31]翟裕生.论成矿系统[J].地学前缘,1999,6(1):13-27.
[32] CHAI G,NALDRETT A J.Characteristics of Ni-Cu-PGE mineralization and genesis of the Jinchuan deposit,Northwest China[J].Economic Geology,1992,87(6):1475-1495.
[33] CHAI G,NALDRETT A J.The Jinchuan ultramafic intrusion:cumulate of a high-Mg basaltic magma[J].Journal of Petrology,1992,33(2):277-303.
[34]焦建刚,汤中立,闫海卿,等.金川铜镍硫化物矿床中富铜矿石铂族元素特征及矿床成因[J].西北地质,2012,45(4):242-253.
[35]汤中立.金川铜镍硫化物(含铂)矿床成矿模式及地质对比[M].北京:地质出版社,1995.
[36]杨合群,赵国斌,任华宁,等.金川超大型铜镍矿床与超基性小岩体的同源分异关系[J].西北地质,2012,45(4):155-164.
[37]张新虎.龙首山古裂谷带的基本特征及其演化历史[J].西北地质,1992(1):6-13.
[38]杨建国,王磊,谢燮,等.甘肃北山怪石山铜镍矿化基性-超基性杂岩体锆石SHRIMP U-Pb同位素定年及其意义[J].大地构造与成矿学,2016,40(1):98-108.
[39]王磊,杨建国,王小红,等.甘肃北山拾金滩岩体与邻区超基性岩体岩石地球化学特征对比及成矿潜力浅析[J].新疆地质,2013,31(1):65-70.
[40]王金荣,潘振杰,张旗,等.大陆板内玄武岩数据挖掘:成分多样性及在判别图中的表现[J].岩石学报,2016,32(7):1919-1933.
[41] SUN S S,MCDONOUGH W F.Chemical and isotopic systematics of oceanic basalts:implications for mantle composition and processes[J].Geological Society of London-Special Publications,1989,42(1):313-345.
[42]李士彬,宋谢炎,胡瑞忠,等.甘肃金川Ⅱ号岩浆硫化物含矿岩体岩浆演化过程探讨[J].现代地质,2011,25(4):703-711.
[43]史基安,王雷,高野穆一郎,等.金川超镁铁质岩元素及稀有气体同位素地球化学特征[J].矿物岩石,2005,25(1):45-51.
[44]王泸文.甘肃金川铜镍硫化物矿床1号矿体地质地球化学研究[D].兰州:兰州大学,2012:45-69.
[45]刘欣雨,张旗,张成立.全球新生代安山岩构造环境有关问题探讨[J].地质科学,2017,52(3):649-667.
[46]刘帅.新疆东天山地区铜镍硫化物矿床特征对比及成因研究[D].合肥:合肥工业大学,2012:64-77.
[2]安屹,杨婧,陈万峰,等.N-MORB、E-MORB和OIB的区别及其可能的原因:大数据的启示[J].地质科学,2017,52(3):727-742.
[3]陈万峰,王金荣,张旗,等.洋岛和洋底高原玄武岩数据挖掘:地球化学特征及其与MORB的对比[J].地质学报,2017,91(11):2443-2455.
[4]王金荣,陈万峰,张旗,等.N-MORB和E-MORB数据挖掘:玄武岩判别图及洋中脊源区地幔性质的讨论[J].岩石学报,2017,33(3):993-1005.
[5]杨婧,王金荣,张旗,等.全球岛弧玄武岩数据挖掘:在玄武岩判别图上的表现及初步解释[J].地质通报,2016,35(12):1937-1949.
[6]郭佳磊,巫建华,郭恒飞,等.中国东部铀成矿带中酸性岩与全球A型花岗岩对比[J].矿物岩石地球化学通报,2017,36(6):897-904.
[7]李晓晖,袁峰,马良,等.三维成矿定量预测系统设计与应用实例研究[J].地质科学,2017,52(3):755-770.
[8]刘学龙,李文昌,张娜,等.滇西北普朗斑岩铜矿与成矿有关的花岗岩与全球埃达克岩的对比:大数据研究的初步结果[J].岩石学报,2018,34(2):289-302.
[9]罗建民,张琪,宋秉田,等.物化探信息综合处理在找矿靶区定量优选中的应用[J].矿物岩石地球化学通报,2017,36(6):886-890.
[10] SONG D,XIAO W,HAN C,et al.Progressive accretionary tectonics of the Beishan orogenic collage,southern Altaids:insights from zircon U-Pb and Hf isotopic data of high-grade complexes[J].Precambrian Research,2013,227(1):368-388.
[11] SONG D,XIAO W,HAN C,et al.Provenance of metasedimentary rocks from the Beishan orogenic collage,southern Altaids:constraints from detrital zircon U-Pb and Hf isotopic data[J].Gondwana Research,2013,24(3/4):1127-1151.
[12] TIAN Z,XIAO W,WINDLEY B F,et al.Structure,age,and tectonic development of the Huoshishan-Niujuanziophiolitic mélange,Beishan,southernmost Altaids[J].Gondwana Research,2014,25(2):820-841.
[13] XIAO W J,MAO Q G,WINDLEY B F,et al.Paleozoic multiple accretionary and collisional processes of the Beishan orogenic collage[J].American Journal of Science,2011,310(10):1553-1594.
[14]龚全胜,刘明强,梁明宏,等.北山造山带大地构造相及构造演化[J].西北地质,2003,36(1):11-17.
[15]聂凤军.北山地区金属矿床成矿规律及找矿方向[M].地质出版社,2002.
[16]杨合群,李英,赵国斌,等.北山蛇绿岩特征及构造属性[J].西北地质,2010,43(1):26-36.
[17]左国朝,刘义科,刘春燕.甘新蒙北山地区构造格局及演化[J].甘肃地质,2003(1):1-15.
[18] XIE W,SONG X Y,DENG Y F,et al.Geochemistry and petrogenetic implications of a Late Devonian mafic-ultramafic intrusion at the southern margin of the Central Asian Orogenic Belt[J].Lithos,2012,144/145(2):209-230.
[19]李丽,杨永强,王育习.甘肃北山地区怪石山含铜镍矿化镁铁质-超镁铁质杂岩体的地球化学特征及成因机制[J].世界地质,2010,29(1):16-27.
[20]谢燮,杨建国,王小红,等.甘肃北山大山头:带铜镍矿化基性-超基性岩地质、地球化学特征及成矿潜力[J].新疆地质,2013,31(4):353-359.
[21]谢燮,杨建国,王小红,等.甘肃北山红柳沟铜镍矿化基性-超基性岩体SHRIMP锆石U-Pb年龄及其地质意义[J].中国地质,2015,42(2):396-405.
[22]闫海卿,赵焕强,丁瑞颖,等.甘肃北山大山头基性杂岩体SHRIMP锆石U-Pb年龄及其地质意义[J].西北地质,2012,45(4):216-228.
[23]杨建国,王磊,王小红,等.甘肃北山地区黑山铜镍矿化基性-超基性杂岩体SHRIMP锆石U-Pb定年及其地质意义[J].地质通报,2012,31(2):448-454.
[24]徐刚.甘肃北山地区黑山铜镍硫化物矿床成矿作用研究[D].西安:长安大学,2013.
[25]张新虎,冯军,殷勇,等.甘肃肃北黑山镍铜矿床产出特征及对比研究[J].西北地质,2012,45(4):134-144.
[26]杨建国,翟金元,杨宏武,等.甘肃北山地区花牛山铅锌矿区玄武岩锆石LA-ICP-MS U-Pb定年及其地质意义[J].地质通报,2010,29(7):1017-1023.
[27]左国朝.北山板块构造及成矿规律[M].北京:北京大学出版社,1990.
[28]江磊.甘肃北山红柳沟铜镍矿地球化学特征及成矿潜力[D].西安:长安大学,2014:41-50.
[29]闫海卿,胡彦强,汤中立,等.甘肃北山大山头杂岩体地球化学特征与构造背景[J].矿物学报,2011,31(增刊):419-420.
[30]邓晋福,莫宣学.火成岩构造组合与壳幔成矿系统[J].地学前缘,1999,6(2):259-270.
[31]翟裕生.论成矿系统[J].地学前缘,1999,6(1):13-27.
[32] CHAI G,NALDRETT A J.Characteristics of Ni-Cu-PGE mineralization and genesis of the Jinchuan deposit,Northwest China[J].Economic Geology,1992,87(6):1475-1495.
[33] CHAI G,NALDRETT A J.The Jinchuan ultramafic intrusion:cumulate of a high-Mg basaltic magma[J].Journal of Petrology,1992,33(2):277-303.
[34]焦建刚,汤中立,闫海卿,等.金川铜镍硫化物矿床中富铜矿石铂族元素特征及矿床成因[J].西北地质,2012,45(4):242-253.
[35]汤中立.金川铜镍硫化物(含铂)矿床成矿模式及地质对比[M].北京:地质出版社,1995.
[36]杨合群,赵国斌,任华宁,等.金川超大型铜镍矿床与超基性小岩体的同源分异关系[J].西北地质,2012,45(4):155-164.
[37]张新虎.龙首山古裂谷带的基本特征及其演化历史[J].西北地质,1992(1):6-13.
[38]杨建国,王磊,谢燮,等.甘肃北山怪石山铜镍矿化基性-超基性杂岩体锆石SHRIMP U-Pb同位素定年及其意义[J].大地构造与成矿学,2016,40(1):98-108.
[39]王磊,杨建国,王小红,等.甘肃北山拾金滩岩体与邻区超基性岩体岩石地球化学特征对比及成矿潜力浅析[J].新疆地质,2013,31(1):65-70.
[40]王金荣,潘振杰,张旗,等.大陆板内玄武岩数据挖掘:成分多样性及在判别图中的表现[J].岩石学报,2016,32(7):1919-1933.
[41] SUN S S,MCDONOUGH W F.Chemical and isotopic systematics of oceanic basalts:implications for mantle composition and processes[J].Geological Society of London-Special Publications,1989,42(1):313-345.
[42]李士彬,宋谢炎,胡瑞忠,等.甘肃金川Ⅱ号岩浆硫化物含矿岩体岩浆演化过程探讨[J].现代地质,2011,25(4):703-711.
[43]史基安,王雷,高野穆一郎,等.金川超镁铁质岩元素及稀有气体同位素地球化学特征[J].矿物岩石,2005,25(1):45-51.
[44]王泸文.甘肃金川铜镍硫化物矿床1号矿体地质地球化学研究[D].兰州:兰州大学,2012:45-69.
[45]刘欣雨,张旗,张成立.全球新生代安山岩构造环境有关问题探讨[J].地质科学,2017,52(3):649-667.
[46]刘帅.新疆东天山地区铜镍硫化物矿床特征对比及成因研究[D].合肥:合肥工业大学,2012:64-77.
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