云南宝丰寺岩体锆石微量元素特征及地质意义
|
摘要
云南宝丰寺岩体地处扬子陆块西缘金沙江-红河断裂与程海-宾川断裂夹持部位,属于金沙江-红河富碱斑岩带组成部分,由细晶黑云母花岗斑岩(FCBGP)和粗晶花岗斑岩(CGGP)组成。通过对宝丰寺岩体开展的锆石Ti温度、锆石Ce~(4+)/Ce~(3+)值和δEu和δCe值研究结果表明:两类岩石锆石Ti温度相差不大(FCBGP为618.55℃—792.75℃,均值为692.42℃;CGGP为560.35℃～820.41℃,均值为714.13℃),与S型花岗岩浆形成温度相似,反映宝丰寺岩体属S型花岗岩;锆石Ce~(4+)/Ce~(3+)值、δEu和δCe值总体较高(FCBGP的Ce~(4+)/Ce~(3+)值、δEu和δCe分别为24.51～1190.06、0.32～0.49和10.17～1231.19,均值分别为390.36、0.42和264.29;CGGP的Ce~(4+)/Ce~(3+)值、δEu和δCe分别为50.13～494.56、0.44～0.58和24.87～262.76,均值分别为232.98、0.49和141.82),与金沙江-红河富碱斑岩带含矿岩体特征值类似,表明宝丰寺岩体形成于高氧逸度环境,有利于岩浆体系中的成矿金属元素保留至岩浆分异演化的晚阶段,有利于形成斑岩型矿床。
Located between Jinshajiang river-Red River and Binchuan-Chenghai faults in the west margin of Yangtze block,Baofengsi intrusion in Binchuan City,Yunnan province,China is an important part of Jinshajiang-Red River alkali-rich porphyry belt,it consists of fine crystal biotitic granite porphyry(FCBGP)and coarse-grain granite porphyry(CGGP).The values of Ti temperature,Ce~(4+)/Ce~(3+),δEu andδCe of zircons in Baofengsi intrusion are studied.The result shows that zircons Ti temperature of two types rock are almost the same(zircons Ti temperature of FCBGP are from 618.55℃to 792.75℃,and the average values are 692.42℃;Zircons Ti temperature of CGGP are from 560.35℃to 820.41℃,and the average values are 714.13℃),and similar to the formation temperature of S type granite magma thus Baofengsi intrusion belong to S type granite.Generally,values of Ce~(4+)/Ce~(3+),δEu andδCe of zircons from two types rock are higher(the Ce~(4+)/Ce~(3+),δEu andδCe values of FCBGP are 24.51～1190.06,0.32～0.49 and 10.17～1231.19,respectively;the average Ce~(4+)/Ce~(3+),δEu andδCe values of FCBGP are390.36,0.42 and 264.29,respectively.The Ce~(4+)/Ce~(3+),δEu andδCe values of CGGP are 50.13～494.56,0.44～0.58 and 24.87～262.76,respectively;The average Ce~(4+)/Ce~(3+),δEu andδCe values of CGGP are 232.98,0.49 and 141.82,respectively),similar to that of ore-bearing porphyry of JinshajiangRed River alkali-rich porphyry belt thus formed in a high oxygen fugacity environment,which is favorable for the preservation of ore-forming metal elements in the magmatic system to the late stage of magmatic differentiation and favorable for formation of porphyry ore deposit.
Located between Jinshajiang river-Red River and Binchuan-Chenghai faults in the west margin of Yangtze block,Baofengsi intrusion in Binchuan City,Yunnan province,China is an important part of Jinshajiang-Red River alkali-rich porphyry belt,it consists of fine crystal biotitic granite porphyry(FCBGP)and coarse-grain granite porphyry(CGGP).The values of Ti temperature,Ce~(4+)/Ce~(3+),δEu andδCe of zircons in Baofengsi intrusion are studied.The result shows that zircons Ti temperature of two types rock are almost the same(zircons Ti temperature of FCBGP are from 618.55℃to 792.75℃,and the average values are 692.42℃;Zircons Ti temperature of CGGP are from 560.35℃to 820.41℃,and the average values are 714.13℃),and similar to the formation temperature of S type granite magma thus Baofengsi intrusion belong to S type granite.Generally,values of Ce~(4+)/Ce~(3+),δEu andδCe of zircons from two types rock are higher(the Ce~(4+)/Ce~(3+),δEu andδCe values of FCBGP are 24.51～1190.06,0.32～0.49 and 10.17～1231.19,respectively;the average Ce~(4+)/Ce~(3+),δEu andδCe values of FCBGP are390.36,0.42 and 264.29,respectively.The Ce~(4+)/Ce~(3+),δEu andδCe values of CGGP are 50.13～494.56,0.44～0.58 and 24.87～262.76,respectively;The average Ce~(4+)/Ce~(3+),δEu andδCe values of CGGP are 232.98,0.49 and 141.82,respectively),similar to that of ore-bearing porphyry of JinshajiangRed River alkali-rich porphyry belt thus formed in a high oxygen fugacity environment,which is favorable for the preservation of ore-forming metal elements in the magmatic system to the late stage of magmatic differentiation and favorable for formation of porphyry ore deposit.
引文
[1]刘清泉,张宇,张智慧,等.豫南姚冲钼矿床二长花岗岩锆石微量元素特征及其地质意义[J].中国有色金属学报,2015,25(3):776-785.
[2]Carroll M R,Rutherford M J.Sulfide and sulfate saturation in hydrous silicate melts[J].Journal of Geophysical Research:Solid Earth(1978-2012),1985,90(S2):601-612.
[3]Carroll M R,Rutherford M J.Sulfur speciation in hydrous experimental glasses of varying oxidation state;results from measured wavelength shifts of sulfur X-rays[J].American Mineralogist,1988,73(7-8):845-849.
[4]Streck J M,Dilles J H.Sulfur evolution of oxidized arc magmas as recorded in apatite from a porphyry copper batholiths[J].Geology,1998,26:523-526.
[5]胥磊落,毕献武,陈佑纬,等.云南金平铜厂斑岩铜钼矿区岩体锆石Ce4+/Ce3+比值及其对成矿的指示意义[J].矿物学报,2012,32(1):74-82.
[6]Ballard J R,Palin J M,Campbell I H.Relative oxidation states of magmas inferred from Ce(Ⅳ)/Ce(Ⅲ)in zircon:Application to porphyry copper deposits of northern Chile[J].Contributions to Mineralogy and Petrology,2002,144:347-364.
[7]辛洪波,曲晓明.西藏冈底斯斑岩铜矿带含矿岩体的相对氧化状态:来自锆石Ce(IV)/Ce(III)比值的约束[J].矿物学报,2008,28(2):152-160.
[8]俞一凡,费光春,李佑国,等.云南中甸岛弧烂泥塘斑岩铜矿床岩体氧逸度特征及成矿意义[J].矿物岩石,2016,36(1):28-36.
[9]Hou Z Q,Zaw K,Pan G T,et al.The Sanjiang Tethyan metallogenic in SW China:Tectonic setting,metallogenic epoch and deposit type[J].Ore Geology Reviews,2007,31:48-87.
[10]邓军,王长明,李龚健.三江特提斯叠加成矿作用样式及过程[J].岩石学报,2012,28(5):1349-1361.
[11]徐恒,崔银亮,周家喜,等.云南宾川宝丰寺碱性斑岩成岩时代的精确厘定及其地质意义[J].矿物学报,2015,35(4):457-462.
[12]侯增谦,潘桂棠,王安建,等.青藏高原碰撞造山带:I.主碰撞造山成矿作用[J].矿床地质,2006,25(4):337-358.
[13]侯增谦,潘桂棠,王安建,等.青藏高原碰撞造山带:II.晚碰撞转换成矿作用[J].矿床地质,2006,25(5):521-543.
[14]喻学惠,肖晓牛,杨贵来,等.滇西“三江”南段几个花岗岩的锆石SHIRMP U-Pb定年及其地质意义[J].岩石学报,2008,24(2):377-383.
[15]郭桂林,吴道鹏,唐忠.云南宾川宝丰寺金铜多金属矿成矿条件及找矿远景浅析[J].云南地质,2014,33(1):45-50.
[16]Qi L,Hu J,Gregoire D C.Determination of trace elements in granites by inductively coupled plasma mass spectrometry[J].Talanta,2000,51:507-513.
[17]Liu Y S,Hu Z C,Cao S,et al.Gao C and Chen H..In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J].Chemical Geology,2008,257(1-2):34-43.
[18]徐恒.云南程海-宾川断裂带斑岩地球化学特征及成因[D].昆明:昆明理工大学,2016:1-200.
[19]Sun S S,McDonough W F.Chemical and isotopic systematics of oceanic basalts:Implication for mantle composition and processes,Magmatism in the ocean basins[J].Geological Society of Special Publications,1989,42:313-345.
[20]赵振华.副矿物微量元素地球化学特征在成岩成矿作用研究中的应用[J].地学前缘,2010,17(1):267-286.
[21]Waston E B,Wark D A,Tomas J B.Crystallization thermometers for zircon rutile[J].Contrib Mineral Petrol,2006,151:413-433.
[22]蒋成竹.滇西北衙金多金属矿床钾质岩浆岩活动与成矿作用[D].北京:中国地质大学,2014:1-197.
[23]王丽丽.华南赣州地区早古生代晚期-中生代花岗岩类地球化学与岩石成因[D].北京:中国地质大学,2015:1-163.
[24]周家云,谭洪旗,龚大兴,等.川西江浪穹隆核部新火山花岗岩LA-ICP-MS锆石U-Pb定年和Hf同位素研究[J].矿物岩石,2013,33(4):42-53.
[25]Burnham A D,Berry A J.An experimental study of trace element partitioning between ziron and melt as a function of oxygen fugacity[J].Geochimica et Cosmochimica Acta,2012,95:196-212.
[26]Liang H Y,Campbell I H,Allen C,et al.Zircon Ce4+/Ce3+ratios and ages for Yulong ore-bearing porphyries in eastern Tibet[J].Mineralium Deposita,2006,41(2):152-159.
[27]Liang H Y,Yu H X,Mo C H,et al.Zircon LA-ICP-MS U-Pb age,Ce4+/Ce3+ratios and the geochemical features of the Machangqing complex associated with copper deposit[J].Chinese Journal of Geochemistry,2006,25(3):223-229.
[28]Bi X W,Hu R Z,Hanley J J,et al.Crystallisation conditions(T,P,fO2)from mineral chemistry of Cu-and Au-mineralised alkaline intrusions in the Red River-Jinshajiang alkaline igneous belt,western Yunnan Province,China[J].Mineralogy and Petrology,2009,96(1-2):43-58.
[29]梁华英,谢应雯,张玉泉,等.富钾碱性岩体形成演化对铜矿成矿制约-以马厂箐铜矿为例[J].自然科学进展,2004,14(1):116-120.
[30]Yuan H L,Gao S,Liu X M,et al.Accurate U-Pb age and trace elements determinations of zircon by laser ablation-inductively coupled plasma Mass spectrometry[J].Geostandards Newsletter,2004,28:353-370.
[31]黄波,梁华英,莫济海,等.金平铜厂铜钼矿床赋矿岩体锆石LA-ICP-MS U-Pb年龄及意义[J].大地构造与成矿学,2009,33(4):598-602.
[32]Zhang H,Ling M X,et al.High Oxygen Fugacity and Slab Melting Linked to Cu Mineralization:Evidence from Dexing Porphyry Copper Deposits,Southeastern China[J].The Journal of Geology,2013,121(3):289-305.
[2]Carroll M R,Rutherford M J.Sulfide and sulfate saturation in hydrous silicate melts[J].Journal of Geophysical Research:Solid Earth(1978-2012),1985,90(S2):601-612.
[3]Carroll M R,Rutherford M J.Sulfur speciation in hydrous experimental glasses of varying oxidation state;results from measured wavelength shifts of sulfur X-rays[J].American Mineralogist,1988,73(7-8):845-849.
[4]Streck J M,Dilles J H.Sulfur evolution of oxidized arc magmas as recorded in apatite from a porphyry copper batholiths[J].Geology,1998,26:523-526.
[5]胥磊落,毕献武,陈佑纬,等.云南金平铜厂斑岩铜钼矿区岩体锆石Ce4+/Ce3+比值及其对成矿的指示意义[J].矿物学报,2012,32(1):74-82.
[6]Ballard J R,Palin J M,Campbell I H.Relative oxidation states of magmas inferred from Ce(Ⅳ)/Ce(Ⅲ)in zircon:Application to porphyry copper deposits of northern Chile[J].Contributions to Mineralogy and Petrology,2002,144:347-364.
[7]辛洪波,曲晓明.西藏冈底斯斑岩铜矿带含矿岩体的相对氧化状态:来自锆石Ce(IV)/Ce(III)比值的约束[J].矿物学报,2008,28(2):152-160.
[8]俞一凡,费光春,李佑国,等.云南中甸岛弧烂泥塘斑岩铜矿床岩体氧逸度特征及成矿意义[J].矿物岩石,2016,36(1):28-36.
[9]Hou Z Q,Zaw K,Pan G T,et al.The Sanjiang Tethyan metallogenic in SW China:Tectonic setting,metallogenic epoch and deposit type[J].Ore Geology Reviews,2007,31:48-87.
[10]邓军,王长明,李龚健.三江特提斯叠加成矿作用样式及过程[J].岩石学报,2012,28(5):1349-1361.
[11]徐恒,崔银亮,周家喜,等.云南宾川宝丰寺碱性斑岩成岩时代的精确厘定及其地质意义[J].矿物学报,2015,35(4):457-462.
[12]侯增谦,潘桂棠,王安建,等.青藏高原碰撞造山带:I.主碰撞造山成矿作用[J].矿床地质,2006,25(4):337-358.
[13]侯增谦,潘桂棠,王安建,等.青藏高原碰撞造山带:II.晚碰撞转换成矿作用[J].矿床地质,2006,25(5):521-543.
[14]喻学惠,肖晓牛,杨贵来,等.滇西“三江”南段几个花岗岩的锆石SHIRMP U-Pb定年及其地质意义[J].岩石学报,2008,24(2):377-383.
[15]郭桂林,吴道鹏,唐忠.云南宾川宝丰寺金铜多金属矿成矿条件及找矿远景浅析[J].云南地质,2014,33(1):45-50.
[16]Qi L,Hu J,Gregoire D C.Determination of trace elements in granites by inductively coupled plasma mass spectrometry[J].Talanta,2000,51:507-513.
[17]Liu Y S,Hu Z C,Cao S,et al.Gao C and Chen H..In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J].Chemical Geology,2008,257(1-2):34-43.
[18]徐恒.云南程海-宾川断裂带斑岩地球化学特征及成因[D].昆明:昆明理工大学,2016:1-200.
[19]Sun S S,McDonough W F.Chemical and isotopic systematics of oceanic basalts:Implication for mantle composition and processes,Magmatism in the ocean basins[J].Geological Society of Special Publications,1989,42:313-345.
[20]赵振华.副矿物微量元素地球化学特征在成岩成矿作用研究中的应用[J].地学前缘,2010,17(1):267-286.
[21]Waston E B,Wark D A,Tomas J B.Crystallization thermometers for zircon rutile[J].Contrib Mineral Petrol,2006,151:413-433.
[22]蒋成竹.滇西北衙金多金属矿床钾质岩浆岩活动与成矿作用[D].北京:中国地质大学,2014:1-197.
[23]王丽丽.华南赣州地区早古生代晚期-中生代花岗岩类地球化学与岩石成因[D].北京:中国地质大学,2015:1-163.
[24]周家云,谭洪旗,龚大兴,等.川西江浪穹隆核部新火山花岗岩LA-ICP-MS锆石U-Pb定年和Hf同位素研究[J].矿物岩石,2013,33(4):42-53.
[25]Burnham A D,Berry A J.An experimental study of trace element partitioning between ziron and melt as a function of oxygen fugacity[J].Geochimica et Cosmochimica Acta,2012,95:196-212.
[26]Liang H Y,Campbell I H,Allen C,et al.Zircon Ce4+/Ce3+ratios and ages for Yulong ore-bearing porphyries in eastern Tibet[J].Mineralium Deposita,2006,41(2):152-159.
[27]Liang H Y,Yu H X,Mo C H,et al.Zircon LA-ICP-MS U-Pb age,Ce4+/Ce3+ratios and the geochemical features of the Machangqing complex associated with copper deposit[J].Chinese Journal of Geochemistry,2006,25(3):223-229.
[28]Bi X W,Hu R Z,Hanley J J,et al.Crystallisation conditions(T,P,fO2)from mineral chemistry of Cu-and Au-mineralised alkaline intrusions in the Red River-Jinshajiang alkaline igneous belt,western Yunnan Province,China[J].Mineralogy and Petrology,2009,96(1-2):43-58.
[29]梁华英,谢应雯,张玉泉,等.富钾碱性岩体形成演化对铜矿成矿制约-以马厂箐铜矿为例[J].自然科学进展,2004,14(1):116-120.
[30]Yuan H L,Gao S,Liu X M,et al.Accurate U-Pb age and trace elements determinations of zircon by laser ablation-inductively coupled plasma Mass spectrometry[J].Geostandards Newsletter,2004,28:353-370.
[31]黄波,梁华英,莫济海,等.金平铜厂铜钼矿床赋矿岩体锆石LA-ICP-MS U-Pb年龄及意义[J].大地构造与成矿学,2009,33(4):598-602.
[32]Zhang H,Ling M X,et al.High Oxygen Fugacity and Slab Melting Linked to Cu Mineralization:Evidence from Dexing Porphyry Copper Deposits,Southeastern China[J].The Journal of Geology,2013,121(3):289-305.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |