藏北阿翁错复式岩体及其暗色微粒包体年龄、地球化学与地球动力学意义
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摘要
对班公湖-怒江缝合带西段阿翁错复式岩体及其暗色微粒包体开展了岩石学、全岩地球化学及同位素年龄研究。结果表明,阿翁错复式岩体中出露大量闪长质暗色微粒包体,包体具典型的火成结构,发育针状磷灰石。寄主岩与包体均为准铝质、高钾钙碱性-钾玄岩系列过渡岩石,主要氧化物含量在Harker图解上具有良好的线性关系,稀土元素配分曲线和微量元素原始地幔标准化蛛网图具有高度的一致性,表明二者具有强烈的地球化学亲源关系,且经历了相似的岩浆演化过程;主量、微量元素同分母协变图中包体和寄主岩表现为良好的线性关系,表明二者之间的演化与岩浆混合作用关系密切;包体的原始岩浆可能来源于受俯冲带流体交代的地幔楔,寄主岩为幔源岩浆与熔融下地壳岩浆混合的产物,以熔融下地壳岩浆为主。寄主岩和暗色微粒包体的成岩年龄分别为109.1±1.0Ma和107.4±0.7Ma,显示岩浆混合作用发生在早白垩世。结合班公湖-怒江缝合带的演化及构造判别,认为阿翁错复式岩体形成于班公湖-怒江特提斯洋软碰撞阶段,为受俯冲带流体交代的地幔楔上升与其诱发的下地壳花岗质岩浆混合作用的产物。
The petrology, whole rock geochemistry and U-Pb isotopic chronology of the Awengcuo composite pluton and its dark microgranular enclaves in the western part of Bangong Co-Nujiang suture zone were studied in this paper. The results show that Awengcuo composite pluton contains abundant mafic magmatic enclaves(MMEs) comprising mainly biotitic diorite. The MMEs display igneous texture and long prisms of apatite. Host rock and MMEs are transitional rock belonging to quasi-aluminum, highcalcium alkaline-potassium kaolin series, and the main oxides in the Harker diagram show good linear relationship. Rare earth element distribution curve and normalized spider web for trace element primitive mantle exhibit a high degree of consistency. It shows that there is a strong geophysical relationship between the two groups, which experienced similar magmatic evolution processes. A good linear relationship is shown between the host rock and the inclusions in the denominator covariant map for the major and trace elements. The original magma of the inclusions might have been derived from the mantle wedge by fluid of the subduction zone, whereas the host rock is a product of mantle-derived magma mixed with the molten lower crust magma, mainly molten lower crust magma. The LA-ICP-MS single-zircon U-Pb dating demonstrates that the magmatic age is 109.1±1.0 Ma for the host rock and 107.4±0.7 Ma for the enclave. The two ages are basically the same, suggesting that the mixing event took place during the period of Early Cretaceous. Combined with the evolution and tectonic discrimination of Bangong Co-Nujiang suture zone, it is concluded that the Awengcuo composite pluton was formed at the soft-collision stage in the Bangong Co-Nujiang Tethyan Ocean, being a product of mantle wedge ascending with the derived mixture of subduction zone fluid and magma.
The petrology, whole rock geochemistry and U-Pb isotopic chronology of the Awengcuo composite pluton and its dark microgranular enclaves in the western part of Bangong Co-Nujiang suture zone were studied in this paper. The results show that Awengcuo composite pluton contains abundant mafic magmatic enclaves(MMEs) comprising mainly biotitic diorite. The MMEs display igneous texture and long prisms of apatite. Host rock and MMEs are transitional rock belonging to quasi-aluminum, highcalcium alkaline-potassium kaolin series, and the main oxides in the Harker diagram show good linear relationship. Rare earth element distribution curve and normalized spider web for trace element primitive mantle exhibit a high degree of consistency. It shows that there is a strong geophysical relationship between the two groups, which experienced similar magmatic evolution processes. A good linear relationship is shown between the host rock and the inclusions in the denominator covariant map for the major and trace elements. The original magma of the inclusions might have been derived from the mantle wedge by fluid of the subduction zone, whereas the host rock is a product of mantle-derived magma mixed with the molten lower crust magma, mainly molten lower crust magma. The LA-ICP-MS single-zircon U-Pb dating demonstrates that the magmatic age is 109.1±1.0 Ma for the host rock and 107.4±0.7 Ma for the enclave. The two ages are basically the same, suggesting that the mixing event took place during the period of Early Cretaceous. Combined with the evolution and tectonic discrimination of Bangong Co-Nujiang suture zone, it is concluded that the Awengcuo composite pluton was formed at the soft-collision stage in the Bangong Co-Nujiang Tethyan Ocean, being a product of mantle wedge ascending with the derived mixture of subduction zone fluid and magma.
引文
[1]莫宣学.岩浆与岩浆岩:地球深部“探针”与演化记录[J].自然杂志,2011,33(5):255-259.
[2]Stampfli G M,Borel G D.A plate tectonic model for the Paleozoic and Mesozoic constrained by dynamic plate boundaries and restored synthetic oceanic isochrons[J].Earth and Planetary Science Letters,2002,196(1/2):17-33.
[3]Spring L,Bussy F,Vannay J C,et al.Early Permian granitic dykes of alkaline affinity in the Indian High Himalaya of upper Lahul and SEZanskar:Geochemical characterization and geotectonic implications[J].Geological Society London Special Publications,1993,74(1):251-264.
[4]Zhu D C,Mo X X,Zhao Z D,et al.Presence of Permian extension-and arc-type magmatism in southern Tibet:Paleogeographic implications[J].Geological Society of America Bulletin,2010,122(7/8):979-993.
[5]黄启帅,史仁灯,丁炳华,等.班公湖MOR型蛇绿岩Re-Os同位素特征对班公湖-怒江特提斯洋裂解时间的制约.岩石矿物学杂志,2012,31(4):465-478.
[6]曲晓明,王瑞江,辛洪波,等.西藏西部与班公湖特提斯洋盆俯冲相关的火成岩年代学和地球化学[J].地球化学,2009,38(6):523-525.
[7]杜德道,曲晓明,王根厚,等.西藏班公湖-怒江缝合带西段中特提斯洋盆的双向俯冲:来自岛弧型花岗岩锆石U-Pb年龄和元素地球化学的证据[J].岩石学报,2011,27(7):1993-2002.
[8]邱瑞照,周肃,邓晋福,等.西藏班公湖-怒江西段舍马拉沟蛇绿岩中辉长岩年龄测定--兼论班公湖-怒江蛇绿岩带形成时代[J].中国地质,2004,31(3):262-268.
[9]朱弟成,莫宣学,赵志丹,等.西藏冈底斯带措勤地区则弄群火山岩锆石U-Pb年代学格架及构造意义[J].岩石学报,2008,24(3):401-412.
[10]胡隽,万永文,陶专,等.班公湖-怒江缝合带西段特提斯洋盆南向俯冲的地球化学和年代学证据[J].成都理工大学学报(自然科学版),2014,41(4):505-515.
[11]雷鸣,陈建林,许继峰,等.拉萨地体中北部尕尔穷晚白垩世早期高镁闪长玢岩地球化学特征指示:加厚下地壳的拆沉?[J].地质通报,2015,34(2/3):337-346.
[12]李金祥,李光明,秦克章,等.班公湖带多不杂富金斑岩铜矿床斑岩-火山岩的地球化学特征与时代:对成矿构造背景的制约[J].岩石学报,2008,24(3):531-543.
[13]雷传扬,李志军,张志,等.西藏尕尔穷铜金矿床花岗岩类的地球化学特征及其地球动力学意义[J].地球学报,2012,33(4):601-612.
[14]雷传扬,吴建亮,尹显科,等.班公湖-怒江缝合带西段沙木罗组地层中闪长玢岩脉的发现及其地质意义[J].矿物岩石地球化学通报,2018,37(2):250-259.
[15]雷传扬,吴建亮,尹显科,等.班公湖-怒江缝合带西段阿翁错地区中酸性侵入岩的成因及其对区域构造演化的指示[J].大地构造与成矿学,2019,43(1):168-185.
[16]韦少港,唐菊兴,宋扬,等.西藏改则多龙矿集区地堡那木岗矿床钾玄质二长花岗斑岩锆石LA-MC-ICP-MS U-Pb年龄、地球化学特征及其地质意义[J].地质论评,2017,63(1):189-206.
[17]丁帅,唐菊兴,郑文宝,等.西藏拿若斑岩型铜(金)矿含矿岩体年代学、地球化学及地质意义[J].地球科学,2017,42(1):1-23.
[18]宋彪,张玉海,万渝生,等.锆石SHRIMP样品靶制作、年龄测定及有关现象讨论[J].地质论评,2002,48(增刊):26-30.
[19]Liu Y S,Hu Z C,Gao S,et al.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.
[20]Liu Y S,Hu Z C,Zong K Q,et al.Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS[J].Chinese Science Bulletin,2010,55(15):1535-1546.
[21]Rickwood P C.Boundary lines within petrologic diagrams which use oxides of major and minor elements[J].Lithos,1989,22(4):247-263.
[22]肖庆辉,邓晋福,马大铨,等.花岗岩研究思维与方法[M].北京:地质出版社,2002.
[23]Boynton W V.Geochemistry of the rare earth elements:meteorite studies[C]//Henderson P.Rare Earth Element Geochemistry.Amsterdam:Elsevier,1984:63-114.
[24]McDonough W F,Sun S S,Ringwood A E,et al.Potassium,rubidium,and cesium in the Earth and Moon and the evolution of the mantle of the Earth[J].Geochimica et Cosmochimica Acta,1992,56(3):1001-1012.
[25]吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报,2004,49(16):1589-1604.
[26]Belousova E A,Griffin W L,O’reilly S Y,et al.Igneous zircon:Trace element composition as an indicator of source rock type[J].Contributions to Mineralogy and Petrology,2002,143:602-622.
[27]Whalen J B,Currie K L,Chappell B W.A-type granites:Geochemical characteristics discrimination and petrogenesis[J].Contributions to Mineralogy and Petrology,1987,95:407-419.
[28]鄢圣武,朱兵,伍文湘,等.松潘-甘孜造山带万里城花岗岩及其岩浆包体的成因与地球动力学意义[J].地质通报,2015,34(2/3):292-305.
[29]马乐天,张招崇,董书云,等.南天山英买来花岗岩的地质、地球化学特征及其地质意义[J].地球科学,2010,35(6):908-920.
[30]谭俊,魏俊浩,李水如,等.广西昆仑关A型花岗岩地球化学特征及构造意义[J].地球科学,2008,33(6):743-754.
[31]Chappell B W,White A J R.I-and S-type granites in the Lachlan Fold Belt[J].Transactions of the Royal Society of Edinburgh:Earth Sciences,1992,83(1/2):1-26.
[32]李献华,周汉文,刘颖,等.粤西阳春中生代钾玄质侵入岩及其构造意义:I.岩石学和同位素地质年代学[J].地球化学,2000,29(6):513-520.
[33]陈国超,裴先治,李瑞保,等.东昆仑东段香加南山花岗岩基的岩浆混合成因:来自镁铁质微粒包体的证据[J].地学前缘,2016,23(4):226-240.
[34]陈广俊,孙丰月,李碧乐,等.东昆仑沟里地区暗色包体及其寄主岩地球化学特征及成因[J].吉林大学学报(地球科学版),2014,44(3):892-904.
[35]马昌前,杨坤光,唐仲华.花岗岩类岩浆动力学--理论方法及鄂东花岗岩类例析[M].武汉:中国地质大学出版社,1994.
[36]周珣若.花岗岩混合作用[J].地学前缘,1994,1(1/2):87-97.
[37]付建明,谢才富,彭松柏,等.湖南骑田岭花岗岩及其暗色微粒包体的地球化学与壳幔岩浆的混合作用[J].地球学报,2006,27(6):557-569.
[38]Langmuir C H.A general mixing equation with application to Icelandic basalt[J].Earth and Planet.Sci.Lett.,1978,37:380-392.
[39]Zorpi M J,Coulon C,OrsinI J B,et al.Magma mingling,zoning and emplacement in calc-alkaline granitoid plutons[J].Tectonophysics,1989,157:315-329.
[40]付强,葛文胜,温长顺,等..广西米场花岗岩及其暗色微粒包体的地球化学特征和成因分析[J].地球学报,2011,32(3):293-303.
[41]Zhou W,Xie H,Liu Y,et al.Dehydration melting of solid amphibolite at 2.0GPa:effects of time and temperature[J].Science China Earth Sciences,2005,48(8):1120.
[42]于介江,侯雪刚,葛文春,等.佳木斯地块东北缘早二叠世六连岩体的岩浆混合成因:岩相学、年代学和地球化学证据[J].岩石学报,2013,29(9):2971-2986.
[43]Jochum K P,McDonough W F,Palme H.Compositional constraints on the continental lithospheric mantle from trace elements in spinel peridotite xenoliths[J].Nature,1989,340(6234):548-550.
[44]许继峰,梅厚钧,于学元,等.准噶尔北缘晚古生代岛弧中与俯冲作用有关的adakite火山岩:消减板片部分熔融的产物[J].科学通报,2001,46(8):684-688.
[45]郝百武.内蒙古镶黄旗南晚古生代晶洞钾长花岗岩杂岩的发现、岩石成因及其构造意义[J].吉林大学学报(地球科学版),2012,42(2):269-284.
[46]Rudnick R L,Gao S.Composition of the continental crust[C]//Rudniek R L.The Crust Treaties on Geochemistry,Oxford:Elsevier Pergamon,2003:l-64.
[47]Jung S,Pfander J A.Source composition and melting temperatures of orogenic granitoid:constraints from CaO/Na2O,A12O3/TiO2and accessory mineral saturation thermometry[J].European Journal of Mineralogy,2007,19(6):859-870.
[48]Montel J M and Vielzeuf D.Partial melting of metagreywackes,Part II.Compositions of minerals and melts[J].Contributions to Mineralogy and Petrology,1997,128(2):176-196.
[49]Rushmer T.Partial melting of two amphibolites:contrasting experimental results under fluid-absent conditions[J].Contributions to Mineralogy and Petrology,1991,107(1):41-59.
[50]赵永久,袁超,周美夫,等.川西老君沟和孟通沟花岗岩的地球化学特征、成因机制及对松潘-甘孜地体基底性质的制约[J].岩石学报,2007,23(5):995-1006.
[51]Altherr R,Siebel W.I-type plutonism in a continental back-arc setting:Miocene granitoids and monzonites from the central Aegean Sea,Greece[J].Contributions to Mineralogy and Petrology,2002,143(4):397-415.
[52]Shi R D,Griffin W L,O'reilly S Y,et al.Melt-mantle mixing produces podiform chromite deposits in ophiolites:Implications of Re-Os systematics in the Dongqiao Neo-tethyan ophiolite,northern Tibet[J].Gondwana Research,2012,21(1):194-206.
[53]Kapp P,Yin A,Harrison T M,et al.Cretaceous-Tertiary shortening,basin development,and volcanism in central Tibet[J].Geological Society of America Bulletin,2005,117(7):865-878.
[54]Winther K T.An experimentally based model for the origin of tonalitic and trondhjemitic melts[J].Chemical Geology,1996,127(1/3):43-59.
[55]任纪舜,牛宝贵,刘志刚.软碰撞、叠覆造山和多旋回缝合作用[J].地学前缘,1999,6(3):85-93.
[56]Pearce J A.Sources and settings of granitic rocks[J].Episodes,1996,19(4):120-125.
[2]Stampfli G M,Borel G D.A plate tectonic model for the Paleozoic and Mesozoic constrained by dynamic plate boundaries and restored synthetic oceanic isochrons[J].Earth and Planetary Science Letters,2002,196(1/2):17-33.
[3]Spring L,Bussy F,Vannay J C,et al.Early Permian granitic dykes of alkaline affinity in the Indian High Himalaya of upper Lahul and SEZanskar:Geochemical characterization and geotectonic implications[J].Geological Society London Special Publications,1993,74(1):251-264.
[4]Zhu D C,Mo X X,Zhao Z D,et al.Presence of Permian extension-and arc-type magmatism in southern Tibet:Paleogeographic implications[J].Geological Society of America Bulletin,2010,122(7/8):979-993.
[5]黄启帅,史仁灯,丁炳华,等.班公湖MOR型蛇绿岩Re-Os同位素特征对班公湖-怒江特提斯洋裂解时间的制约.岩石矿物学杂志,2012,31(4):465-478.
[6]曲晓明,王瑞江,辛洪波,等.西藏西部与班公湖特提斯洋盆俯冲相关的火成岩年代学和地球化学[J].地球化学,2009,38(6):523-525.
[7]杜德道,曲晓明,王根厚,等.西藏班公湖-怒江缝合带西段中特提斯洋盆的双向俯冲:来自岛弧型花岗岩锆石U-Pb年龄和元素地球化学的证据[J].岩石学报,2011,27(7):1993-2002.
[8]邱瑞照,周肃,邓晋福,等.西藏班公湖-怒江西段舍马拉沟蛇绿岩中辉长岩年龄测定--兼论班公湖-怒江蛇绿岩带形成时代[J].中国地质,2004,31(3):262-268.
[9]朱弟成,莫宣学,赵志丹,等.西藏冈底斯带措勤地区则弄群火山岩锆石U-Pb年代学格架及构造意义[J].岩石学报,2008,24(3):401-412.
[10]胡隽,万永文,陶专,等.班公湖-怒江缝合带西段特提斯洋盆南向俯冲的地球化学和年代学证据[J].成都理工大学学报(自然科学版),2014,41(4):505-515.
[11]雷鸣,陈建林,许继峰,等.拉萨地体中北部尕尔穷晚白垩世早期高镁闪长玢岩地球化学特征指示:加厚下地壳的拆沉?[J].地质通报,2015,34(2/3):337-346.
[12]李金祥,李光明,秦克章,等.班公湖带多不杂富金斑岩铜矿床斑岩-火山岩的地球化学特征与时代:对成矿构造背景的制约[J].岩石学报,2008,24(3):531-543.
[13]雷传扬,李志军,张志,等.西藏尕尔穷铜金矿床花岗岩类的地球化学特征及其地球动力学意义[J].地球学报,2012,33(4):601-612.
[14]雷传扬,吴建亮,尹显科,等.班公湖-怒江缝合带西段沙木罗组地层中闪长玢岩脉的发现及其地质意义[J].矿物岩石地球化学通报,2018,37(2):250-259.
[15]雷传扬,吴建亮,尹显科,等.班公湖-怒江缝合带西段阿翁错地区中酸性侵入岩的成因及其对区域构造演化的指示[J].大地构造与成矿学,2019,43(1):168-185.
[16]韦少港,唐菊兴,宋扬,等.西藏改则多龙矿集区地堡那木岗矿床钾玄质二长花岗斑岩锆石LA-MC-ICP-MS U-Pb年龄、地球化学特征及其地质意义[J].地质论评,2017,63(1):189-206.
[17]丁帅,唐菊兴,郑文宝,等.西藏拿若斑岩型铜(金)矿含矿岩体年代学、地球化学及地质意义[J].地球科学,2017,42(1):1-23.
[18]宋彪,张玉海,万渝生,等.锆石SHRIMP样品靶制作、年龄测定及有关现象讨论[J].地质论评,2002,48(增刊):26-30.
[19]Liu Y S,Hu Z C,Gao S,et al.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.
[20]Liu Y S,Hu Z C,Zong K Q,et al.Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS[J].Chinese Science Bulletin,2010,55(15):1535-1546.
[21]Rickwood P C.Boundary lines within petrologic diagrams which use oxides of major and minor elements[J].Lithos,1989,22(4):247-263.
[22]肖庆辉,邓晋福,马大铨,等.花岗岩研究思维与方法[M].北京:地质出版社,2002.
[23]Boynton W V.Geochemistry of the rare earth elements:meteorite studies[C]//Henderson P.Rare Earth Element Geochemistry.Amsterdam:Elsevier,1984:63-114.
[24]McDonough W F,Sun S S,Ringwood A E,et al.Potassium,rubidium,and cesium in the Earth and Moon and the evolution of the mantle of the Earth[J].Geochimica et Cosmochimica Acta,1992,56(3):1001-1012.
[25]吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报,2004,49(16):1589-1604.
[26]Belousova E A,Griffin W L,O’reilly S Y,et al.Igneous zircon:Trace element composition as an indicator of source rock type[J].Contributions to Mineralogy and Petrology,2002,143:602-622.
[27]Whalen J B,Currie K L,Chappell B W.A-type granites:Geochemical characteristics discrimination and petrogenesis[J].Contributions to Mineralogy and Petrology,1987,95:407-419.
[28]鄢圣武,朱兵,伍文湘,等.松潘-甘孜造山带万里城花岗岩及其岩浆包体的成因与地球动力学意义[J].地质通报,2015,34(2/3):292-305.
[29]马乐天,张招崇,董书云,等.南天山英买来花岗岩的地质、地球化学特征及其地质意义[J].地球科学,2010,35(6):908-920.
[30]谭俊,魏俊浩,李水如,等.广西昆仑关A型花岗岩地球化学特征及构造意义[J].地球科学,2008,33(6):743-754.
[31]Chappell B W,White A J R.I-and S-type granites in the Lachlan Fold Belt[J].Transactions of the Royal Society of Edinburgh:Earth Sciences,1992,83(1/2):1-26.
[32]李献华,周汉文,刘颖,等.粤西阳春中生代钾玄质侵入岩及其构造意义:I.岩石学和同位素地质年代学[J].地球化学,2000,29(6):513-520.
[33]陈国超,裴先治,李瑞保,等.东昆仑东段香加南山花岗岩基的岩浆混合成因:来自镁铁质微粒包体的证据[J].地学前缘,2016,23(4):226-240.
[34]陈广俊,孙丰月,李碧乐,等.东昆仑沟里地区暗色包体及其寄主岩地球化学特征及成因[J].吉林大学学报(地球科学版),2014,44(3):892-904.
[35]马昌前,杨坤光,唐仲华.花岗岩类岩浆动力学--理论方法及鄂东花岗岩类例析[M].武汉:中国地质大学出版社,1994.
[36]周珣若.花岗岩混合作用[J].地学前缘,1994,1(1/2):87-97.
[37]付建明,谢才富,彭松柏,等.湖南骑田岭花岗岩及其暗色微粒包体的地球化学与壳幔岩浆的混合作用[J].地球学报,2006,27(6):557-569.
[38]Langmuir C H.A general mixing equation with application to Icelandic basalt[J].Earth and Planet.Sci.Lett.,1978,37:380-392.
[39]Zorpi M J,Coulon C,OrsinI J B,et al.Magma mingling,zoning and emplacement in calc-alkaline granitoid plutons[J].Tectonophysics,1989,157:315-329.
[40]付强,葛文胜,温长顺,等..广西米场花岗岩及其暗色微粒包体的地球化学特征和成因分析[J].地球学报,2011,32(3):293-303.
[41]Zhou W,Xie H,Liu Y,et al.Dehydration melting of solid amphibolite at 2.0GPa:effects of time and temperature[J].Science China Earth Sciences,2005,48(8):1120.
[42]于介江,侯雪刚,葛文春,等.佳木斯地块东北缘早二叠世六连岩体的岩浆混合成因:岩相学、年代学和地球化学证据[J].岩石学报,2013,29(9):2971-2986.
[43]Jochum K P,McDonough W F,Palme H.Compositional constraints on the continental lithospheric mantle from trace elements in spinel peridotite xenoliths[J].Nature,1989,340(6234):548-550.
[44]许继峰,梅厚钧,于学元,等.准噶尔北缘晚古生代岛弧中与俯冲作用有关的adakite火山岩:消减板片部分熔融的产物[J].科学通报,2001,46(8):684-688.
[45]郝百武.内蒙古镶黄旗南晚古生代晶洞钾长花岗岩杂岩的发现、岩石成因及其构造意义[J].吉林大学学报(地球科学版),2012,42(2):269-284.
[46]Rudnick R L,Gao S.Composition of the continental crust[C]//Rudniek R L.The Crust Treaties on Geochemistry,Oxford:Elsevier Pergamon,2003:l-64.
[47]Jung S,Pfander J A.Source composition and melting temperatures of orogenic granitoid:constraints from CaO/Na2O,A12O3/TiO2and accessory mineral saturation thermometry[J].European Journal of Mineralogy,2007,19(6):859-870.
[48]Montel J M and Vielzeuf D.Partial melting of metagreywackes,Part II.Compositions of minerals and melts[J].Contributions to Mineralogy and Petrology,1997,128(2):176-196.
[49]Rushmer T.Partial melting of two amphibolites:contrasting experimental results under fluid-absent conditions[J].Contributions to Mineralogy and Petrology,1991,107(1):41-59.
[50]赵永久,袁超,周美夫,等.川西老君沟和孟通沟花岗岩的地球化学特征、成因机制及对松潘-甘孜地体基底性质的制约[J].岩石学报,2007,23(5):995-1006.
[51]Altherr R,Siebel W.I-type plutonism in a continental back-arc setting:Miocene granitoids and monzonites from the central Aegean Sea,Greece[J].Contributions to Mineralogy and Petrology,2002,143(4):397-415.
[52]Shi R D,Griffin W L,O'reilly S Y,et al.Melt-mantle mixing produces podiform chromite deposits in ophiolites:Implications of Re-Os systematics in the Dongqiao Neo-tethyan ophiolite,northern Tibet[J].Gondwana Research,2012,21(1):194-206.
[53]Kapp P,Yin A,Harrison T M,et al.Cretaceous-Tertiary shortening,basin development,and volcanism in central Tibet[J].Geological Society of America Bulletin,2005,117(7):865-878.
[54]Winther K T.An experimentally based model for the origin of tonalitic and trondhjemitic melts[J].Chemical Geology,1996,127(1/3):43-59.
[55]任纪舜,牛宝贵,刘志刚.软碰撞、叠覆造山和多旋回缝合作用[J].地学前缘,1999,6(3):85-93.
[56]Pearce J A.Sources and settings of granitic rocks[J].Episodes,1996,19(4):120-125.
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