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        滇西瀾滄江構造帶中段新生代多期構造變形特征及時代約束*

        2015-03-15 12:04:36吉風寶戚學祥常裕林張超趙宇浩韋誠
        巖石學報 2015年12期
        關鍵詞:糜棱巖瀾滄江黑云母

        吉風寶 戚學祥** 常裕林 張超 趙宇浩 韋誠

        JI FengBao1,QI XueXiang1**,CHANG YuLin2,ZHANG Chao1,ZHAO YuHao3 and WEI Cheng1

        1. 大陸構造與動力學國家重點實驗室,中國地質科學院地質研究所,北京 100037

        2. 中國冶金地質總局山東正元地質勘察院,濟南 250101

        3. 中國地質調查局南京地質調查中心,南京 210016

        1. State Key Laboratory of Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China

        2. Shandong Zhengyuan Geological Exploration Institute,China Metallurgical Geology Bureau,Jinan 250101,China

        3. Nanjing Institutes of Geology and Mineral Resources,China Geological Survey,Nanjing 210016,China

        2015-05-05 收稿,2015-09-26 改回.

        1 引言

        青藏高原東南緣三江構造帶是岡瓦納古陸東北緣塊體相繼于中晚泥盆世、二疊世和三疊世裂離、向北運移,塊體之間的古特提斯洋(瀾滄江洋、哀牢山-金沙江洋)、中特提斯洋(班公湖-怒江洋)和新特提斯洋(雅魯藏布-密支那洋)相繼俯沖(Metcalfe,2011,2013),印支(蘭坪-思茅)地塊、Sibumasu(保山-羌塘)地塊和騰沖-緬西地塊分別于印支期和燕山晚期相互拼合(?eng?r,1984;Dewey et al.,1988;?eng?r et al.,1993;從柏林等,1993;莫宣學等,1993;鐘大賚,1998;Yin and Harrison,2000;李興振等,2002;戚學祥等,2010a,b,2012)形成的由多個地塊(如騰沖-緬西、Sibumasu/保山-羌塘和印支)以及塊體之間殘余縫合帶(如高黎貢縫合帶、瀾滄江縫合帶和哀牢山-金沙江縫合帶)組成的復雜構造帶(Mitchell,1993;Mitchell et al.,2004;Morley,2004;Metcalfe,2006;Acharyya,2007;Heppe et al.,2007;楊經綏等,2012)。在喜山運動期間,印度板塊向北俯沖碰撞導致青藏高原東南緣塊體發(fā)生大規(guī)模旋轉和逃逸(Tapponnier and Molnar,1976;Tapponnier et al.,1982,1990),塊體沿古縫合帶發(fā)生大規(guī)模走滑(丁林,1991;鐘大賚等,1991;Leloup et al.,1993,1995;鐘大賚,1998;劉俊來等,2006,2007,2011;羅照華等,2006;Morkey,2007;Searle et al.,2007;王二七等,2006;Cao et al.,2010)形成由總體走向近南北,向北收斂、向南撒開的三條大型構造帶和三個地塊組成的構造格局(圖1a)。前人對東部哀牢山-金沙江構造帶和西部高黎貢構造帶中的大規(guī)模類型走滑剪切作用進行了廣泛的研究,認為前者為左行大型韌性走滑剪切帶,主要形成于35 ~21Ma(Sch?rer et al. ,1990,1994;Harrison et al. ,1992,1996;Leloup et al. ,1993,1995,2001;Zhang and Sch?rer,1999;Gilley et al. ,2003;Searle et al. ,2010;Li et al. ,2014),后者為大型右行韌性走滑剪切帶,形成于38 ~10Ma(鐘大賚等,1991;季建清等,2000;Lee et al.,2003;Wang et al.,2006;Lin et al. ,2009;李再會等,2012;Zhang et al. ,2012b;王丹丹等,2013)。但對分隔保山-羌塘地塊和蘭坪-思茅地塊的邊界性瀾滄江構造帶的研究相對薄弱,且主要集中于北段的碧羅雪山至崇山一帶,認為碧羅雪山以北以右行走滑為主,碧羅雪山-崇山段以左行走滑為特征,其走滑時限為37 ~21Ma (陳新躍等,2006;Wang et al. ,2006;Akciz et al.,2008;張波,2008;張波等,2009,2011;Zhang et al.,2010,2012a;唐淵等,2013),瀾滄江構造帶中段(崇山-臨滄巖體段)是瀾滄江構造帶轉折段,蘭坪-思茅盆地在此段緊縮呈“蜂腰”狀,其構造變形特征、形成時限及其與塊體的擠出關系仍未查明。近年來,筆者對中段韌性變形特征進行了野外調研,發(fā)現該段同時存在典型的左行和右行走滑剪切標志及兩組拉伸線理交切的現象。為此,在野外調研的基礎上,通過顯微構造學、巖石學和同位素年代學等方法,對該段韌性變形特征,左行和右行走滑作用的時空關系及其形成時代進行研究,并結合前人研究成果,揭示瀾滄江構造帶韌性變形的形成機制及其與塊體旋轉擠出的關系,為進一步探討三江構造帶的形成演化提供依據。

        圖1 瀾滄江構造帶中段地質簡圖(a,據Wang and Burchfiel,1997 修編;b,云南省地質調查院,2011①云南省地質調查院.2011. 1∶250000 鳳慶幅地質圖修編)Fig.1 Simplified geological map of the middle segment of the Lancang tectonic zone (a,modified after Wang and Burchfiel,1997)

        2 區(qū)域地質概況

        瀾滄江構造帶位于青藏高原東南緣,北與高黎貢和金沙江構造帶平行展布,沿碧羅雪山和崇山山脈向南延入臨滄巖體,沿臨滄巖體東側直至進入泰國境內,長約1300km(圖1a)。寬3 ~20km,東部以瀾滄江逆沖斷層帶與蘭坪-思茅地塊為界,西部以昌寧-鳳慶逆沖斷裂帶分隔于保山地塊。瀾滄江構造帶云南境內總體可分為三部分:北段為碧羅雪山以北向南延伸至崇山山脈,南段自以臨滄巖體經景洪向南進入泰國,南北兩段之間崇山南部至臨滄巖體北部構成構造帶的中段,即構造帶從近南北走向轉向南東東走向后又轉向近南北向的過渡地段(圖1)。北段長約350km,寬3 ~20km,走向近南北,由西側角閃巖相條帶狀片麻巖、糜棱巖化片麻巖、花崗質糜棱巖和東側綠片巖相云母片巖、千枚巖和板巖組成。角閃巖相變質巖糜棱巖化變形明顯,糜棱面理和拉伸線理發(fā)育,面理總體走向近南北向,傾向、傾角變化較大(傾角一般>60°),兩側傾向相反,呈正花狀,線理向南傾伏,傾角較小(<30°,一般<20°)。指向構造發(fā)育,碧羅雪山以北以右旋為主,以南以左旋為主(Akciz et al.,2008;張波,2008;張波等,2009,2011;Zhang et al.,2010,2012;唐淵等,2013)。南段由西部的高壓藍片巖帶、中部臨滄巖體和東部的韌性走滑剪切帶構成。其中,東部韌性走滑剪切帶寬度變化較大,不同地段糜棱巖化程度不同,多由糜棱巖或初糜棱巖組成。中段長約100km,寬度3 ~20km,整體走向NW-SE,于昌寧-鳳慶-云縣一帶轉為近E-W 走向(圖1b),主體由高綠片巖相-角閃巖相片麻巖、混合巖和石榴云母片巖組成。帶內巖石糜棱巖化明顯,糜棱面理和拉伸線理發(fā)育,產狀變化較大,總體傾向南西,指向構造揭示其存在典型的右行和左行兩種走滑運動性質。瀾滄江構造帶東側的蘭坪-思茅地塊內出露的地層為侏羅系-白堊系陸相沉積(紅層),內部褶皺、逆沖推覆構造發(fā)育。構造帶西側保山-羌塘地塊內出露的地層為古生界被動陸緣沉積地層和零星分布的中生界沉積地層,大型北東向左行走滑斷裂帶南汀河斷裂帶和畹町斷裂帶將地塊內部分為三部分(圖1a),南汀河斷裂帶北起云縣茂蘭、向南匯入實皆斷裂,未切穿瀾滄江構造帶(朱玉新等,1994;王晉南等,2006);畹町斷裂帶向北至灣甸匯入柯街斷裂,向南匯入實皆斷裂(常祖峰等,2012;Morley,2007)。

        3 測試方法

        3.1 EBSD 組構

        EBSD 組構分析由中國地質科學院地質研究所大陸構造與動力學國家重點實驗室完成。定向樣品沿垂直面理并平行于線理方向切制光薄片,薄片拋光、噴碳后進行EBSD 測量,測試儀器為日本電子公司(JEOL)制造的JSM-56101V 型掃描電鏡和丹麥HKL 公司制造的CHANNEL5 型號EBSD 儀器。加速電壓為20kV,工作距離為20mm,將衍射點數進行等面積下半球赤平投影,得到反映晶體CPO 的各主要晶軸空間分布的極密圖。組構圖解的坐標軸設置為X 軸平行于拉伸線理的方向,XY 為面理方向,Z 軸為垂直面理的方向,晶格優(yōu)選方位極密圖統(tǒng)計由Channel 5 軟件完成,詳細實驗流程參考文獻(許志琴等,2009)。

        3.2 40Ar/39Ar 年代學

        黑云母40Ar/39Ar 定年由中國地質科學院地質研究所同位素熱年代學實驗室完成。樣品破碎后經重液浮選和磁選,選出黑云母初級樣品,然后在雙目鏡下經手工仔細挑選,樣品純度在99%以上。選純的黑云母單礦物(純度>99%)用超聲波清洗。清洗后的樣品被封進石英瓶中送核反應堆中接受中子照射。照射工作是在中國原子能科學研究院的“游泳池堆”中進行的,使用B4 孔道,中子流密度約為2.65 ×1013n·cm-2S-1。照射總時間為1444min,積分中子通量為2.30 ×1018n·cm-2;同期接受中子照射的還有用做監(jiān)控樣的標準樣:ZBH-25 黑云母標樣,其標準年齡為132.7 ±1.2Ma,K 含量為7.6%。

        樣品的階段升溫加熱使用石墨爐,每一個階段加熱30min,凈化30min。質譜分析是在多接收稀有氣體質譜儀Helix MC 上進行的,每個峰值均采集20 組數據。所有的數據在回歸到時間零點值后再進行質量歧視校正、大氣氬校正、空白校正和干擾元素同位素校正。中子照射過程中所產生的干擾同位素校正系數通過分析照射過的K2SO4和CaF2來獲得,其值為:(36Ar/37Aro)Ca=0.0002389,(40Ar/39Ar)K=0.004782,(39Ar/37Aro)Ca=0.000806。37Ar 經過放射性衰變校正;40K 衰變常數λ =5.543 ×10-10y-1(Steiger and Jager,1977);用ISOPLOT 程序計算坪年齡及正、反等時線(Ludwig,2001)。坪年齡誤差以2σ 給出。詳細實驗流程參考文獻(陳文等,2006;張彥等,2006)。

        圖2 瀾滄江構造帶中段昌寧-耈街剖面構造剖面圖Fig.2 Changning-Goujie structural section in the middle segment of the Lancang tectonic zone

        4 構造變形特征

        4.1 韌性剪切變形

        韌性剪切帶內的巖石都發(fā)生不同程度的韌性變形,其中的石英具有明顯的波狀消光、亞顆粒和動態(tài)重結晶現象,長石多發(fā)育機械雙晶、核幔結構和應力出溶作用(應力蠕英結構、應力條紋結構)、不對稱旋轉碎斑、多米諾構造,以及長英質條帶定向排列構成糜棱面理和拉伸線理,局部形成S-C 組構等。構造帶內的巖石都發(fā)生不同程度的糜棱巖化,形成超糜棱巖、糜棱巖和初糜棱巖,其中,糜棱巖構成剪切帶的主體,超糜棱巖主要分布于剪切帶西南部,初糜棱巖不均勻分布。礦物組合主要有:石榴石+黑云母+斜長石+石英、角閃石+黑云母+長石、黑云母/白云母+斜長石+鉀長石+石英。糜棱面理產狀變化較大,但整體上具有西部傾向南東東,傾角30°左右,中部走向近南北,近直立,東部則變?yōu)閮A向西,傾角25°左右的變化趨勢,且在局部存在“背形”或“向形”式的變化(圖2、圖3)。拉伸線理相對穩(wěn)定,向南南東傾伏,傾伏角10° ~25°。局部同一面理上發(fā)育兩組斜交的線理(120° ~157°∠6° ~15°和308° ~337°∠29° ~39°),且傾伏角較大的線理被近水平線理切割(圖4a),反映兩期走滑剪切變形特征。

        韌性剪切帶內指向構造發(fā)育。露頭尺度上和顯微尺度下,在平行拉伸線理和垂直面理的XZ 面上,長英質條帶被拉斷旋轉形成的不對稱旋轉透鏡體和眼球狀旋轉碎斑、長石及石英團塊構成的“δ”或“σ”旋轉碎斑(圖4)、云母魚、石英被拉長斜列與云母等片狀礦物一起構成S-C 組構、以及長石沿解理面發(fā)生滑動形成的“多米諾”構造(圖5)顯示出明顯的走滑性質。其中,這些構造指向標志出構造帶中-西部以左行走滑為主,東部以右行走滑為主的特點(圖4)。

        4.2 脆韌性變形

        該階段構造變形繼承了早期糜棱面理,局部存在糜棱面理被拉斷、錯開,并被同構造石英充填形成的翼狀構造(Passchier,2001;Mukherjee,2014)(圖4f),長英質脈體被錯斷而形成的“書斜”構造(圖4e)和S-C 組構,以及標志右行剪切作用的云母魚和鉀長石被后期左行剪切作用錯開(圖5e)等脆韌性變形特征,并在整個剪切帶中都展示出左行剪切的運動機制,反映其形成于韌性剪切帶隆升到中上部構造層次后發(fā)生的構造變形。

        圖3 瀾滄江構造帶中段鳳慶-魯史剖面構造剖面圖Fig.3 Fengqing-Lushi structural section in the middle segment of the Lancang tectonic zone

        總體來看,瀾滄江構造帶中段韌性剪切帶整體上具有正花狀構造特征,即糜棱面理在西部呈低角度傾向北東東,東部低角度傾向南西西,中部面理近直立。韌性剪切帶早期以右行韌性走滑剪切變形,后期以左行脆韌性變形走滑剪切變形為特征。

        5 石英組構特征

        石英晶格優(yōu)選方位是查明韌性剪切變形走滑方向和變形條件的重要方法。為此,筆者分別對剪切帶北部的昌寧-耈街剖面和南部的鳳慶-魯史剖面中的糜棱巖樣品進行EBSD 石英C 軸組構分析。其中12QMZ-1-1、13QCG-13和13QCG-25 分別采自昌寧-耈街剖面西翼、中部和東翼的長英質糜棱巖;樣品12QFL-8、12QFL-36 和12QFL-53分別采自鳳慶-魯史剖面西南翼的花崗質糜棱巖、中部的長英質糜棱巖和東北翼的長英質糜棱巖。測試結果如圖6 所示。

        從圖6 可以看出,所有樣品石英C 軸晶格優(yōu)選方位極密均存在平行于Y 軸和分布于Z 軸附近的2 個極密,前者為柱面<a >滑移系,反映形成于中溫(450 ~600℃)的變形環(huán)境(Schmid and Casey,1986),后者為疊加于前期的中低溫菱面<a >滑移系和低溫底面<a >滑移系的單斜單環(huán)帶組構類型,變形溫度約300 ~550℃(Takeshita,1996)。昌寧-耈街剖面中、東部和鳳慶-魯史剖面樣品石英C 軸晶格優(yōu)選方位圖中溫變形顯示右行剪切指向,后期中低溫變形顯示左行特征,昌寧-耈街剖面西翼則顯示兩期左行特征,與剖面整體呈向形構造相符。樣品石英C 軸晶格優(yōu)選方位圖結果與野外露頭和鏡下觀察剪切標志相符。

        6 年代學研究

        6.1 樣品描述

        黑云母40Ar-39Ar 定年樣品采自于的昌寧-耈街剖面中黑云母片巖(12QMZ-15,24°54'12″N,99°43'38″E)和花崗糜棱巖(12QMZ-34,24°56'53″N,99°43'58″E)(圖1b)。12QMZ-15黑云母片巖主要礦物組成為黑云母(45%),白云母(5%)、石英(40%)、長石(10%)。其中黑云母呈他形片狀定向分布,未發(fā)生任何蝕變,石英呈條帶狀,間隔分布于云母富集帶間,定向排列的黑云母、多晶條帶狀石英構成面理,含少量保留斑晶形態(tài)的細?;L石,其邊部零星見蠕英結構,反映巖石經歷過韌性變形和動態(tài)重結晶作用。12QMZ-34 花崗質糜棱巖主要礦物組成為長石(55%)、石英(35%)、黑云母(9%),副礦物主要有鋯石、磷灰石、榍石及磁鐵礦等不透明礦物(1%),長石殘斑粒度變化較大,約1 ×3mm ~3 ×5mm,長石機械雙晶、細粒化作用顯著,局部發(fā)育蠕英結構。云母呈殘縷狀,未發(fā)生任何蝕變,與細?;拈L石、動態(tài)重結晶石英顆粒組成基質。

        6.2 定年結果

        2 個樣品40Ar-39Ar 年齡分析的數據見表1,坪年齡和等時線年齡見圖7。12QMZ-15 樣品中黑云母840 ~1060℃的7個加熱步給出了近一致的表觀年齡,對應的坪年齡為17.8 ±0.2Ma(MSWD=0.83),析出39Ar 量占總量的66.5%;等時線年齡為17.7 ±0.3Ma(MSWD=1.4)。12QMZ-34 樣品中黑云母840 ~1170℃的10 個加熱步給出了近一致的表觀年齡,對應的坪年齡15.0 ±0.2Ma(MSWD =0.59),析出39Ar 量占總量的85.3%;等時線年齡為14.7 ±0.4Ma(MSWD =1.04),兩樣品初始40Ar/36Ar 值分別為296.7 ±5.5 和300.4 ±7.8,與現今大氣氬的標準值(295.5 ±5)誤差范圍內一致,反映樣品受污染的程度較小,且等時線年齡與坪年齡在誤差范圍內一致,年齡真實可信。

        圖4 瀾滄江構造帶中段韌性變形特征(I)昌寧-耈街剖面:(a)剪切帶東翼花崗質糜棱巖面理面上發(fā)育的兩期線理;(b)剪切帶西翼超糜棱巖及糜棱線理;(c)剪切帶西翼花崗質糜棱巖發(fā)育σ 型旋斑,指示左行(XZ 面);(d)剪切帶東翼花崗質糜棱巖發(fā)育σ 型旋斑,σ 型旋斑指示右行(XZ面);(e)剪切帶西翼云母片巖中的淺色花崗巖脈被剪切錯開,指示后期脆韌性左行剪切(XZ 面);(f)剪切帶東翼長英質糜棱巖發(fā)育的翼狀構造指示左行脆韌性變形(XZ 面). (Ⅱ)鳳慶-魯史剖面:(g)剪切帶東翼花崗質糜棱巖發(fā)育σ 型旋斑,σ 型旋斑指示右行(XZ 面);(h)剪切帶東翼花崗質糜棱巖發(fā)育兩期面理(XZ 面)Fig.4 Ductile deformation characterization for the middle segment of the Lancang tectonic zone(I) Changning-Goujie section: (a) two generation mineral stretching lineations on the foliation in granitic mylonite,the east side of the shear zone;(b)ultramylonite in the west side of the shear zone; (c) σ-type porphyroblast in granitic mylonite,indicating sinistral shearing (XZ),west side of the shear zone;(d)σ-type porphyroblast in granitic mylonite,indicating dextral shearing(XZ),east side of the shear zone;(e)dislocation structure in mica schist,indicating brittle-ductile sinistral shearing in later stage(XZ),west side of the shear zone;(f)flanking structures in felsic mylonite,indicating brittle-ductile sinistral shearing(XZ),east side of the shear zone. (Ⅱ)Fengqing-Lushi section:(g)σ-type porphyroblast in granitic mylonite, indicating dextral shearing(XZ),east side of the shear zone;(h)two generation foliations in granitic mylonite (XZ),east side of the shear zone

        7 討論

        7.1 走滑作用時代

        近年來,前人對瀾滄江構造帶北段(即碧羅雪山-崇山一帶)韌性剪切變形特征及其形成時代進行了研究。通過對韌性剪切帶中糜棱巖、同構造花崗巖、變形巖脈及未變形巖脈等進行獨居石/鋯石U-Pb 和黑云母/白云母40Ar-39Ar 同位素年代學測試(Akciz et al.,2008;Zhang et al.,2010,2012a;唐淵等,2013),結果表明同構造花崗巖中獨居石/鋯石、變形花崗巖脈中鋯石變質邊U-Pb 年齡為37 ~21Ma,糜棱巖、同構造花崗巖、變形巖脈中黑云母/白云母40Ar-39Ar 分別為13 ~19Ma、14 ~20Ma,說明韌性剪切作用形成于37 ~21Ma。黑云母和白云母封閉溫度(350℃和400℃)的特點說明該年齡反映深變質變形帶隆升的時代。前人對構造帶中段糜棱巖中的黑云母進行了40Ar-39Ar 同位素測試,獲得27 ~28Ma(陳新躍等,2006;Wang et al.,2006)和17Ma(李述靖和單業(yè)華,1995)兩組同位素數據。野外和鏡下觀察表明構造帶中段存在早期韌性和后期左行脆韌性兩個階段的變形,前者形成于中高溫條件(450 ~600℃),后者形成于中低溫(350 ~550℃)條件,本文獲得的黑云母40Ar-39Ar (17 ~15Ma)與前人獲得兩組年齡數據中的17Ma 年齡數據一致,是對后期左行脆韌性變形期時代上限、韌性剪切變形時代下限的限定,而27 ~28Ma40Ar-39Ar 同位素年齡位于北段與韌性剪切變形有關花崗巖鋯石U-Pb 年齡區(qū)間,代表韌性剪切變形形成和隆升時代。

        圖7 瀾滄江構造帶中段韌性剪切帶內黑云母40Ar/39Ar 坪年齡(a、c)和等時線年齡(b、d)Fig.7 40Ar/39Ar plateau age spectra (a,c)and isochron ages (b,d)of biotite from shear zone in middle segment of the Lancang tectonic zone

        7.2 構造演化

        青藏高原東南緣三江構造域是經歷多期次構造運動改造形成的塊體拼合、擠出和大規(guī)模走滑作用構造變形域,尤其是新生代印度板塊向北俯沖碰撞導致青藏高原東南緣塊體——印支地塊和Sibumasu 地塊發(fā)生大規(guī)模旋轉和逃逸(Tapponnier and Molnar,1976;Tapponnier et al.,1982,1990),塊體沿古縫合帶發(fā)生大規(guī)模走滑作用(丁林,1991;鐘大賚等,1991;鐘大賚,1998;Leloup et al.,1993,1995;劉俊來等,2006,2007,2011;羅照華等,2006;Morley,2007;Searle et al.,2007;王二七等,2006;Cao et al.,2010),形成東部以哀牢山-金沙江大規(guī)模左行走滑剪切帶、西部以高黎貢右行韌性剪切帶和中部瀾滄江韌性剪切帶為界的構造格局(圖1a)。瀾滄江韌性走滑剪切帶的形成時代與前二者一致,反映其形成與蘭坪-思茅地塊和保山地塊之間的相對運動有關。即在擠出過程中,蘭坪-思茅地塊向南擠出速度快于保山地塊時,瀾滄江韌性剪切帶發(fā)生右行走滑剪切作用,形成一系列反映右行走滑剪切的指向構造,反之則形成左行走滑剪切變形。瀾滄江構造帶中段中部面理糜棱產狀近直立,東、西兩側糜棱面理產狀和構造指向都截然相反,展示出典型的“花”狀構造,以及糜棱面理中保留有早期傾伏角較大的拉伸線理,揭示中下地殼形成的韌性剪切帶在斜向擠出隆升過程中,韌性變形巖石以中部近直立糜棱面理糜棱巖為界,分別向東、西兩側斜向逆沖形成的,剪切帶兩側邊緣部位在中部物質向外擠出、并向東、西兩側逆沖過程中致使糜棱面理(S1)發(fā)生彎曲變形,形成兩側分別為傾向相反的兩條逆沖斷層帶控制的的正花狀構造的雛形(圖8a,b)。在斜向擠出作用下韌性剪切帶隆升到上部構造層次后,保山地塊內北東走向的畹町和南汀河兩條構造帶發(fā)生左行走滑作用(Erogˇlu et al.,2013),致使南汀河構造帶南部的物質(包括臨滄巖體)向北東擠壓,形成瀾滄江構造帶中段向北東彎曲的弧形,南段(臨滄巖體)直接逆沖于蘭坪-思茅盆地之上的構造特征(楊振德,1996;Wang and Burchfiel,1997;段建中,1999;段建中和譚筱紅,2000),在此過程中,韌性剪切帶東部物質相對向北運移,在韌性剪切帶內疊加左行脆韌性變形構造(圖8c,d)。

        圖8 瀾滄江構造帶中段構造變形過程示意圖Fig.8 Structural deformation process evolution in the middle segment of the Lancang tectonic zone

        8 結論

        (1)瀾滄江構造帶中段經歷了兩階段變形事件:早期南西向北東斜沖右行韌性變形過程形成宏觀韌性變形標志東部糜棱面理低角度傾向西、西部低角度傾向東、中部近直立,兩側分別逆沖于未發(fā)生變形變質的中生代沉積巖之上的花狀構造;后期構造帶整體經歷近水平左行脆韌性剪切變形作用。

        (2)黑云母40Ar-39Ar 定年結果及前人同位素年代學數據表明瀾滄江構造帶中段早期韌性走滑剪切作用變形作用不晚于28Ma,止于17 ~15Ma,脆韌性變形起始于17 ~15Ma。

        致謝 EBSD 測試工作由陳方遠副研究員完成,40Ar-39Ar同位素測年在中國地質科學院地質研究所國土資源部同位素地質重點實驗室完成,成文過程中李寶龍博士給予了較大幫助,在此一并表示感謝!

        Acharyya SK. 2007. Collisional emplacement history of the Naga-Andaman ophiolites and the position of the eastern Indian suture.Journal of Asian Earth Sciences,29(2):229 -242

        Akciz S,Burchfiel BC,Crowley JL,Yin JJ and Chen LZ. 2008.Geometry,kinematics,and regional significance of the Chong Shan shear zone, Eastern Himalayan Syntaxis, Yunnan, China.Geosphere,4(1):292 -314

        Cao SY,Liu JL and Leiss B. 2010. Orientation - related deformation mechanisms of naturally deformed amphibole in amphibolite mylonites from the Diancang Shan,SW Yunnan,China. Journal of Structural Geology,32(5):606 -622

        Chang ZF,An XW and Zhang YF. 2012. Study on Late-Quaternary activity and displacement of drainage systems along the Wanding fault. Seismology and Geology,34(2):228 -239 (in Chinese with English abstract)

        Chen W,Zhang Y,Zhang YQ,Jin GS and Wang QL. 2006. Late Cenozoic episodic uplifting in southeastern part of the Tibetan Plateau:Evidence from Ar-Ar thermochronology. Acta Petrologica Sinica,22(4):867 -872 (in Chinese with English abstract)

        Chen XY,Wang YJ,Fan WM and Peng TP. 2006. Microstructural characteristics of Chongshan shear zones in Yunnan Province and geochronological constraints. Geotectonica et Metallogenia,30(1):41 -51 (in Chinese with English abstract)

        Cong BL,Wu GY,Zhang Q,Zhang RY,Zhai MG,Zhao DS and Zhang WH. 1993. Petrotectonic evolution of Paleo-Tethys in western Yunnan,China. Science in China (Series B),37(8):1016-1024

        Ding L. 1991. The characteristics of deformation and tectonic implications in south Gaoligong western Yunnan,China. Master Degree Thesis.Beijing:Institute of Geology,Chinese Academy of Sciences,1 -92(in Chinese)

        Duan JZ. 1999. Characteristics of the cenozoic stirke slip (transform)convergent structure in Sanjiang area of western Yunnan Province.Yunnan Geology,18(2):99 -111 (in Chinese)

        Duan JZ and Tan XH. 2000. The nature and feature of Cenozoic main strike-slip fauit in the Three-River area of West Yunnan. Yunnan Geology,19(1):8 -23 (in Chinese with English abstract)

        Erogˇlu S,Siebel W,Dani?ík M,Pf?nder JA and Chen FK. 2013. Multisystem geochronological and isotopic constraints on age and evolution of the Gaoligongshan metamorphic belt and shear zone system in western Yunnan,China. Journal of Asian Earth Sciences,73(8):218 -239

        Gilley LD,Harrison TM,Leloup PH,Ryerson FJ,Lovera OM and Wang JH. 2003. Direct dating of left-lateral deformation along the Red River shear zone,China and Vietnam. Journal of Geophysical Research-Solid Earth,108(B2):183 -185

        Harrison TM,Chen WJ,Leloup PH,Ryerson FJ and Tapponnier P.1992. An early Miocene transition in deformation regime within the Red River fault zone,Yunnan,and its significance for Indo-Asian tectonics. Journal of Geophysical Research,97(B5):7159 -7182

        Harrison TM,Leloup PH,Ryerson FJ,Tapponnier P,Lacassin R and Chen WJ. 1996. Diachronous initiation of transtension along the Ailao Shan-Red River Shear zone,Yunnan and Vietnam. In:Yin A and Harrison TM (eds. ). The Tectonic Evolution of Asia. New York:Cambridge University Press,208 -225

        Heppe K,Helmcke D and Wemmer K. 2007. The Lancang River Zone of southwestern Yunnan,China:A questionable location for the active continental margin of Paleotethys. Journal of Asian Earth Sciences,30(5 -6):706 -720

        Ji JQ,Zhong DL and Zhang LS. 2000. Kinematics and dating of Cenozoic strike-slip faults in the Tengchong area,West Yunnan:Implications for the block movement in the southeastern Tibet Plateau. Chinese Journal of Geology,35(3):336 -349 (in Chinese with English abstract)

        Lee HY,Chung SL,Wang JR,Wen DJ,Lo CH,Yang TF,Zhang YQ,Xie YW,Lee TY,Wu GY and Ji JQ. 2003. Miocene Jiali faulting and its implications for Tibetan tectonic evolution. Earth and Planetary Science Letters,205(3 -4):185 -194

        Leloup PH,Harrison TM,Ryerson FJ,Chen WJ,Li Q,Tapponnier P and Lacassin R. 1993. Structural,petrological and thermal evolution of a Tertiary ductile strike-slip shear zone,Diancang Shan,Yunnan.Journal of Geophysical Research,98(B4):6715 -6743

        Leloup PH,Lacassin R,Tapponnier P,Sch?rer U,Zhong DL,Liu XH,Zhang LS,Ji SC and Trinh PT. 1995. The Ailao Shan-Red River shear zone (Yunnan,China),Tertiary transform boundary of Indochina. Tectonophysics,251(1 -4):3 -10,13 -84

        Leloup PH,Arnaud N,Lacassin R,Kienast JR. Harrison TM,Phan Trong TT,Replumaz A and Tapponnier P. 2001. New constraints on the structure,thermochronology and timing of the Ailao Shan-Red River shear zone. Journal of Geophysical Research,106(B4):6683-6732

        Li BL,Ji JQ,Wang DD,Gong JF and Ma ZJ. 2014. Determination of Eocene-Oligocene (30 ~40Ma)deformational time by zircon U-Pb SHRIMP dating from leucocratic rocks in the Ailao Shan-Red River shear zone,Southeast Tibet,China. International Geology Review,56(1):74 -87

        Li SJ and Shan YH. 1995. Arcuate nappe structure on the northern margin of the Wuliangshan Mountains in western Yunnan. Acta Geologica Sinica,69(4):296 - 305 (in Chinese with English abstract)

        Li XZ,Jiang XS,Sun ZM,Shen GF and Du DX. 2002. The Collisional Orogenic Processes of the Nujiang-Lancangjiang-Jinshajiang Area,Southwestern China. Beijing:Geological Publishing House,1 -213(in Chinese)

        Li ZH,Wang LQ,Lin SL,Cong F,Xie T and Zou GF. 2012. LA-ICPMS zircon U-Pb age of granitic mylonite in the Gaoligong shear zone of western Yunnan Province and its tectonic significance. Geological Bulletin of China,31(8):1287 -1295 (in Chinese with English abstract)

        Lin TH,Lo CH,Chung SL,Hsu FJ,Yeh MW,Lee TY,Ji JQ,Wang YZ and Liu DY. 2009.40Ar/39Ar dating of the Jiali and Gaoligong shear zones:Implications for crustal deformation around the Eastern Himalayan Syntaxis. Journal of Asian Earth Sciences,34(5):674-685

        Liu JL,Song ZJ,Cao SY,Zhai YF,Wang AJ,Gao L,Xiu QY and Cao DH. 2006. The dynamic setting and processes of tectonic and magmatic evolution of the oblique collision zone between Indian and Eurasian plates:Exemplified by the tectonic evolution of the Three River region,eastern Tibet. Acta Petrologica Sinica,22(4):775 -786 (in Chinese with English abstract)

        Liu JL,Cao SY,Zhai YF,Song ZJ,Wang AJ,Xiu QY,Cao DH,Gao L and Guan Y. 2007. Rotation of crustal blocks as an explanation of Oligo-Miocene extension in southeastern Tibet:Evidenced by the Diancangshan and nearby metamorphic core complexes. Earth Science Frontiers,14 (4):40 - 48 (in Chinese with English abstract)

        Liu JL,Tang Y,Song ZJ,Dung TM,Zhai YF,Wu WB and Chen W.2011. The Ailaoshan belt in western Yunnan tectonic framework and tectonic evolution. Journal of Jilin University (Earth Science Edition),41(5):1285 -1303 (in Chinese with English abstract)

        Ludwig KR. 2001. Isoplot/Ex,Rev.2.49:A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronology Center, Special Publication,(1a):55

        Luo ZH,Mo XX,Hou ZQ,Deng WM,Wang JH,Zhao ZD,Yu XH and Li JP. 2006. An integrated model for the Cenozoic evolution of the Tibetan plateau:Constraints from igneous rocks. Earth Science Frontiers,13(4):196 -211 (in Chinese with English abstract)

        Metcalfe I. 2006. Palaeozoic and Mesozoic tectonic evolution and palaeogeography of East Asian crustal fragments:The Korean Peninsula in context. Gondwana Research,9(1 -2):24 -46

        Metcalfe I. 2011. Tectonic framework and Phanerozoic evolution of Sundaland. Gondwana Research,19(1):3 -21

        Metcalfe I. 2013. Gondwana dispersion and Asian accretion:Tectonic and palaeogeographic evolution of eastern Tethys. Journal of Asian Earth Sciences,66:1 -33

        Mitchell AHG. 1993. Cretaceous-Cenozoic tectonic events in the western Myanmar (Burma)-Assam region. Journal of the Geological Society,150(6):1089 -1102

        Mitchell AHG,Ausa CA,Deiparine L,Hlaing T,Htay N and Khine A.2004. The Modi Taung-Nankwe gold district,Slate belt,central Myanmar:Mesothermal veins in a Mesozoic orogen. Journal of Asian Earth Sciences,23(3):321 -341

        Mo XX,Lu FX,Shen SY,Zhu QW,Hou ZQ,Yang KH,Deng JF,Liu XP and He CX. 1993. Sanjiang Tethyan Volcanism and Related Mineralization. Beijing:Geological Publishing House,1 -267 (in Chinese)

        Molnar P and Tapponnier P. 1975. Cenozoic tectonics of Asia:Effects of continental collision. Science,189(4201):419 -426

        Morley CK. 2004. Nested strike-slip duplexes,and other evidence for Late Cretaceous-Palaeogene transpressional tectonics before and during India-Eurasia collision,in Thailand,Myanmar and Malaysia.Journal of the Geological Society,161(5):799 -812

        Morley CK. 2007. Variations in Late Cenozoic-Recent strike-slip and oblique-extensional geometries,within Indochina:The influence of pre-existing fabrics. Journal of Structural Geology,29(1):36 -58

        Mukherjee S. 2014. Review of flanking structures in meso-and microscales. Geological Magazine,151(6):957 -974

        Passchier CW. 2001. Flanking structures. Journal of Structural Geology,23(6 -7):951 -962

        Qi XX,Li HQ,Li TF,Cai ZH and Yu CL. 2010a. Zircon SHRIMP UPb dating for garnet rich granite veins in high pressure granulites from the Namche Barwa complex,eastern syntaxis of the Himalayas and the relationship with exhumeation. Acta Petrologica Sinica,26(3):975 -984 (in Chinese with English abstract)

        Qi XX,Zhu LH,Li HQ,Hu ZC and Li ZQ. 2010b. Zircon LA-ICP-MS U-Pb dating for mylonitized granite from the Ailaoshan-Jinshajiang tectonic zone in the eastern Qinghai-Tibet Plateau and its tectonic significance. Acta Geologica Sinica,84(3):357 -369 (in Chinese with English abstract)

        Qi XX,Zhao YH,Zhu LH and Li ZQ. 2012. Discovery of high-pressure pelitic granulite in Ailaoshan orogenic belt southeastern Tibet,and its tectonic implications. Acta Petrologica Sinica,28(6):1846 -1856 (in Chinese with English abstract)

        Royden LH,Burchfiel BC,Robert D and van der Hilst. 2008. The geological evolution of the Tibetan Plateau. Science,321(5892):1054 -1058

        Sch?rer U,Tapponnier P,Lacassin R,Leloup PH,Zhong DL and Ji SC.1990. Intraplate tectonics in Asia:A precise age for large-scale Miocene movement along the Ailao Shan-Red River shear zone,China. Earth and Planetary Science Letters,97(1 -2):65 -77

        Sch?rer U,Zhang LS and Tapponnier P. 1994. Duration of strike-slip movements in large shear zones:The Red River belt,China. Earth and Planetary Science Letters,126(4):379 -397

        Schmid SM and Casey M. 1986. Complete fabric analysis of some commonly observed quartz c-axis patterns. In:Hobbs BE and Heard HC (eds. ). Mineral and Rock Deformation:Laboratory Studies:The Paterson Volume. American Geophysical Union Monograph,36.American Geophysical Union,246 -261

        Searle MP,Noble SR,Cottle JM,Waters DJ,Mitchell AHG,Hlaing T and Horstwood MSA. 2007. Tectonic evolution of the Mogok metamorphic belt,Burma (Myanmar)constrained by U-Th-Pb dating of metamorphic and magmatic rocks. Tectonics,26(3),doi:10.1029/2006TC002083

        Searle MP,Cottle JM,Streule MJ and Waters DJ. 2010. Crustal melt granites and migmatites along the Himalaya: Melt source,segregation, transport and granite emplacement mechanisms.Geological Society of America Special Papers,472:219 -233

        ?eng?r AMC. 1984. The Cimmeride orogenic system and the tectonics of Eurasia. Geological Society of America Special Papers,195:1 -74

        ?eng?r AMC,Natal’In BA and Burtman VS. 1993. Evolution of the Altaid tectonic collage and Palaeozoic crustal growth in Eurasia.Nature,364(6435):299 -307

        Steiger RH and Jager E. 1977. Subcommission on geochronology:Convention on the use of decay constants in geo-and cosmochronology. Earth and Planetary Science Letters,36(3):359-362

        Takeshita T. 1996. Estimate of physical conditions for deformation based on c-axis transitions in naturally deformed quartzite. The Journal of the Geological Society of Japan,102(3):211 -222

        Tang Y,Yin FG,Wang LQ,Wang DB,Liao SY,Sun ZM and Sun J.2013. Structural characterization of and geochronological constraints on sinistral strike-slip shearing along the southern segment of Chongshan shear zone,western Yunnan. Acta Petrologica Sinica,29(4):1311 -1324 (in Chinese with English abstract)

        Tapponnier P and Molnar P. 1976. Slip-line field theory and large-scale continental tectonics. Nature,264(5584):319 -324

        Tapponnier P,Peltzer G,Ledain AY,Armijo R and Cobbold PR. 1982.Propagating extrusion tectonics in Asia:New insights from simple experiments with plasticine. Geology,10(12):611 -616

        Tapponnier P,Lacassin R,Leloup PH,Sch?rer U,Zhong DL,Wu HW,Liu XH,Ji SC,Zhang LS and Zhong JY. 1990. The Ailao Shan/Red River metamorphic belt:Tertiary left-lateral shear between Indochina and South China. Nature,343(6257):431 -437

        Wang DD,Li BL,Ji JQ,Song SG,Wei CJ and Gong JF. 2013. The thermal evolution and deformational time limit of the Gaoligong metamorphic belt in western Yunnan. Acta Geologica Sinica,87(12):1887 -1900 (in Chinese with English abstract)

        Wang EC and Burchfiel BC. 1997. Interpretation of Cenozoic tectonics in the right-lateral accommodation zone between the Ailao Shan shear zone and the eastern Himalayan syntaxis. International Geology Review,39(3):191 -219

        Wang EC,Fan C,Wang G,Shi XH,Chen LZ and Chen ZL. 2006.Deformational and geomorphic processes in the formation of the Ailao Shan-Diancang range,west Yunnan. Quaternary Sciences,26(2):220 -227 (in Chinese with English abstract)

        Wang JN,Wang YL,An XW and Yang XD. 2006. Analysis of latest activity on NE-segment of west branch of Nantinghe fault. Journal of Seismological Research,29 (3):264 - 268 (in Chinese with English abstract)

        Wang YJ,Fan WM,Zhang YH,Peng TP,Chen XY and Xu YG. 2006.Kinematics and40Ar/39Ar geochronology of the Gaoligong and Chongshan shear systems,western Yunnan,China:Implications for early Oligocene tectonic extrusion of SE Asia. Tectonophysics,418(3 -4):235 -254

        Xu ZQ,Wang Q,Liang FH,Chen FY and Xu CP. 2009. Electron backscatter diffraction (EBSD)technique and its application to study of continental dynamics. Acta Petrologica Sinica,25(7):1721 -1736 (in Chinese with English abstract)

        Yang JS,Xu ZQ,Duan XD,Li J,Xiong FH,Liu Z,Cai ZH and Li HQ. 2012. Discovery of a Jurassic SSZ ophiolite in the Myitkyina region of Myanmar. Acta Petrologica Sinica,28(6):1710 -1730(in Chinese with English abstract)

        Yang ZD. 1996. Thrust-imbricate structure and nappe of Lincang granite.Scientia Geologica Sinica,31(2):130 - 139 (in Chinese with English abstract)

        Yin A and Harrison TM. 2000. Geologic evolution of the Himalayan-Tibetan orogen. Annual Review of Earth and Planetary Sciences,28(1):211 -280

        Zhang B. 2008. Kinematics and deformational mechanism of the Cenozoic sinistral transpression along the Lancangjiang structural belt,western Yunnan,China. Ph. D. Dissertation. Beijing:Peking University,1-105 (in Chinese)

        Zhang B,Zhang JJ,Zhong DL and Guo L. 2009. Architecture,kinematics and thermochronology analysis in Lancangjiang structural zone,in western Yunnan. Chinese Journal of Geology,44(3):889-909 (in Chinese with English abstract)

        Zhang B,Zhang JJ and Zhong DL. 2010. Structure,kinematics and ages of transpression during strain-partitioning in the Chongshan shear zone,western Yunnan,China. Journal of Structural Geology,32(4):445 -463

        Zhang B,Zhang JJ,Zhong DL,Wang XX,Qu JF and Guo L. 2011.Structural feature and its significance of the northernmost segment of the Tertiary Biluoxueshan-Chongshan shear zone,east of the Eastern Himalayan Syntaxis. Science China (Earth Sciences),54(7):959-974

        Zhang B,Zhang JJ,Chang ZF,Wang XX,Cai FL and Lai QZ. 2012a.The Biluoxueshan transpressive deformation zone monitored by synkinematic plutons,around the Eastern Himalayan Syntaxis.Tectonophysics,574(11):158 -180

        Zhang B,Zhang JJ,Zhong DL,Yang LK,Yue YH and Yan SY. 2012b.Polystage deformation of the Gaoligong metamorphic zone:Structures,40Ar/39Ar mica ages,and tectonic implications. Journal of Structural Geology,37:1 -18

        Zhang LS and Sch?rer U. 1999. Age and origin of magmatism along the Cenozoic Red River shear belt,China. Contributions to Mineralogy and Petrology,134(1):67 -85

        Zhang Y,Chen W,Chen KL and Liu XY. 2006. Study on the Ar-Ar age spectrum of diagenetic I/S and the mechanism of39Ar recoil loss:Examples from the clay minerals of P-T boundary in Changxing,Zhejiang Province. Geological Review,52(4):556 - 561 (in Chinese with English abstract)

        Zhong DL,Wang Y and Ding L. 1991. The Tertiary Gaoligong intracontinental strike-slip fault and its associated extensional structure in western Yunnan,China. Annual Report 1989-1990 Lab. Lithos. Tecton. Evolution. Inst. Geol. Academia Sinica.Beijing:Science and Technology of China Press,18 - 24 (in Chinese)

        Zhong DL. 1998. The Tethyan Orogenic Belt in Western Yunnan.Beijing:Science Press,1 -231 (in Chinese)

        Zhu YX,Li P and Ren JW. 1994. Activity of Nandinghe fault zone and its paleoearthquake events. Earthquake Research in China,10(4):347 -356 (in Chinese with English abstract)

        附中文參考文獻

        常祖峰,安曉文,張艷鳳. 2012. 畹町斷裂晚第四紀活動與水系構造變形. 地震地質,34(2):228 -239

        陳文,張彥,張岳橋,金貴善,王清利. 2006. 青藏高原東南緣晚新生代幕式抬升作用的Ar-Ar 熱年代學證據. 巖石學報,22(4):867 -872

        陳新躍,王岳軍,范蔚茗,彭頭平. 2006. 云南崇山剪切斷裂系顯微構造特征及其40Ar-39Ar 年代學約束. 大地構造與成礦學,30(1):41 -51

        從柏林,吳根耀,張旗,張儒媛,翟明國,趙大升,張雯華. 1993.中國滇西古特提斯構造帶巖石大地構造演化. 中國科學(B輯),23(11):1201 -1207

        丁林. 1991. 滇西高黎貢山南體南段構造變形特征及演化歷史討論.碩士學位論文. 北京:中國科學院地質研究所,1 -92

        段建中. 1999. 滇西三江地區(qū)新生代走滑(轉換)會聚構造特征. 云南地質,18(2):99 -111

        段建中,譚筱紅. 2000. 滇西三江地區(qū)新生代主要走滑斷裂性質及特征. 云南地質,19(1):8 -23

        季建清,鐘大賚,張連生. 2000. 滇西南新生代走滑斷裂運動學、年代學、及對青藏高原東南部塊體運動的意義. 地質科學,35(3):336 -349

        李述靖,單業(yè)華. 1995. 滇西無量山北緣弧形推覆構造. 地質學報,69(4):296 -305

        李興振,江新勝,孫志明,沈敢富,杜德勛. 2002. 西南三江地區(qū)碰撞造山過程. 北京:地質出版社,1 -213

        李再會,王立全,林仕良,叢峰,謝韜,鄒光富. 2012. 滇西高黎貢剪切帶內花崗質糜棱巖LA-ICP-MS 鋯石U-Pb 年齡及其構造意義. 地質通報,31(8):1287 -1295

        劉俊來,宋志杰,曹淑云,翟云峰,王安建,高蘭,修群業(yè),曹殿華.2006. 印度-歐亞側向碰撞帶構造-巖漿演化的動力學背景與過程——以藏東三江地區(qū)構造演化為例. 巖石學報,22(4):775-786

        劉俊來,曹淑云,翟云峰,宋志杰,王安建,修群業(yè),曹殿華,高蘭,管燁. 2007. 用陸塊旋轉解釋藏東南漸新世-中新世伸展作用——來自點蒼山及鄰區(qū)變質核雜巖的證據. 地學前緣,14(4):40 -48

        劉俊來,唐淵,宋志杰,Dung TM,翟云峰,吳文彬,陳文. 2011. 滇西哀牢山構造帶:結構與演化. 吉林大學學報(地球科學版),41(5):1285 -1303

        羅照華,莫宣學,侯增謙,鄧萬明,王江海,趙志丹,喻學惠,李建平. 2006. 青藏高原新生代形成演化的整合模型——來自火成巖的約束. 地學前緣,13(4):196 -211

        莫宣學,路鳳香,沈上越,朱勤文,侯增謙,楊開輝,鄧晉福,劉祥品,何昌祥. 1993. 三江特提斯火山作用與成礦. 北京:地質出版社,1 -267

        戚學祥,李化啟,李天福,蔡志慧,于春林. 2010a. 東喜馬拉雅構造結南迦巴瓦群高壓麻粒巖中含石榴石花崗巖脈鋯石SHRIMP U-Pb 定年及其與折返作用. 巖石學報,26(3):975 -984

        戚學祥,朱路華,李化啟,胡兆初,李志群. 2010b. 青藏高原東緣哀牢山-金沙江構造帶糜棱狀花崗巖的LA-ICP-MS U-Pb 定年及其構造意義. 地質學報,84(3):357 -369

        戚學祥,趙宇浩,朱路華,李志群. 2012. 青藏高原東南緣哀牢山構造帶泥質高壓麻粒巖的發(fā)現及其構造意義. 巖石學報,28(6):1846 -1856

        唐淵,尹福光,王立全,王冬兵,廖世勇,孫志明,孫潔. 2013. 滇西崇山剪切帶南段左行走滑作用的構造特征及時代約束. 巖石學報,29(4):1311 -1324

        王丹丹,李寶龍,季建清,宋述光,魏春景,龔俊峰. 2013. 滇西高黎貢變質帶熱史演化與變形時限研究. 地質學報,87(12):1887 -1900

        王二七,樊春,王剛,石許華,陳良忠,陳智樑. 2006. 滇西哀牢山-點蒼山形成的構造和地貌過程. 第四紀研究,26(2):220 -227

        王晉南,王洋龍,安曉文,楊向東. 2006. 南汀河西支斷裂北東段最新活動性分析. 地震研究,29(3):264 -268

        許志琴,王勤,梁鳳華,陳方遠,許翠萍. 2009. 電子背散射衍射(EBSD)技術在大陸動力學研究中的應用. 巖石學報,25(7):1721 -1736

        楊經綏,許志琴,段向東,李靜,熊發(fā)揮,劉釗,蔡志慧,李化啟.2012. 緬甸密支那地區(qū)發(fā)現侏羅紀的SSZ 型蛇綠巖. 巖石學報,28(6):1710 -1730

        楊振德. 1996. 云南臨滄花崗巖的逆沖斷疊瓦構造與推覆構造. 地質科學,31(2):130 -139

        張波. 2008. 滇西瀾滄江構造帶新生代左行擠壓走滑(Transpression)的運動學特征和變形機制. 博士學位論文. 北京:北京大學,1-105

        張波,張進江,鐘大賚,郭磊. 2009. 滇西瀾滄江構造帶及鄰區(qū)幾何學、運動學和構造年代學分析. 地質科學,44(3):889 -909

        張波,張進江,鐘大賚,王曉先,曲軍峰,郭磊. 2011. 喜馬拉雅東構造結東緣碧羅雪山-崇山剪切帶北段構造變形特征及構造意義. 中國科學(地球科學),41(7):945 -959

        張彥,陳文,陳克龍,劉新宇. 2006. 成巖混層(I/S)Ar-Ar 年齡譜型及39Ar 核反沖丟失機理研究——以浙江長興地區(qū)P-T 界線粘土巖為例. 地質論評,52(4):556 -561

        鐘大賚,王毅,丁林. 1991. 滇西高黎貢陸內第三紀走滑斷裂及其伴生拉張構造. 中國科學院地質研究所巖石圈構造演化開放研究實驗室年報. 北京:中國科學技術出版社,18 -24

        鐘大賚. 1998. 滇川西部古特提斯造山帶. 北京:科學出版社,1-231

        朱玉新,李玶,任金衛(wèi). 1994. 南定河斷裂帶斷層活動特征與古地震事件. 中國地震,10(4):347 -356

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