苏鲁造山带北侧构造演化的几何学运动学特征
摘要
横穿诸城凹陷的南北向反射地震剖面揭示,苏鲁造山带北侧边界的中上地壳中存在着三层结构,即上部的胶莱盆地沉积盖层、中部的苏鲁楔状地体和下部代表华北板块的胶北地体;诸城凹陷边缘和内部断裂均显示同沉积正断层性质,苏鲁楔状地体中发育一组向北仰起的叠瓦状逆冲断层,而胶北地体显示了向南俯冲的态势.由此而论,可能存在着华北板块与扬子板块相向俯冲于苏鲁地体之下的陆陆碰撞机制,苏鲁地体可能具有与大别地体相似的花状造山带结构.
Three layers are present in the middle and upper crusts in the northern border of Sulu orogenic belt, as revealed by the S-N-strike reflecting seismic profiles that cross the Zhucheng sag. These three layers are the uppermost sedimentary cover of Jiaolai basin, the Sulu sphenoid terrane in the middle layer and the Jiaobei terrane representing North China plate at the bottom. The fringe of Zhucheng sag and the interior fault are characterized by the syndeposit normal fault. A group of imbricated reverse thrust facing upward to the north has developed in Sulu sphenoid terrane, but the Jiaobei terrane has the trend of subducting to the south. As a result, a collision mechanism is perhaps present between continents where North China plate and Yangtze plate subducted to each other below the Sulu terrene which has the same flower-shape orogenic structure as that of Dabie terrane.
Three layers are present in the middle and upper crusts in the northern border of Sulu orogenic belt, as revealed by the S-N-strike reflecting seismic profiles that cross the Zhucheng sag. These three layers are the uppermost sedimentary cover of Jiaolai basin, the Sulu sphenoid terrane in the middle layer and the Jiaobei terrane representing North China plate at the bottom. The fringe of Zhucheng sag and the interior fault are characterized by the syndeposit normal fault. A group of imbricated reverse thrust facing upward to the north has developed in Sulu sphenoid terrane, but the Jiaobei terrane has the trend of subducting to the south. As a result, a collision mechanism is perhaps present between continents where North China plate and Yangtze plate subducted to each other below the Sulu terrene which has the same flower-shape orogenic structure as that of Dabie terrane.
引文
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陈文寄,Harrison,T.M.,Heizerler,M.T.,等,1992.苏北-胶南构造混杂岩冷却历史的多重扩散域40Ar-39Ar热年代学研究.岩石学报,8(1):1-17.
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凌贤长,1996.鲁东造山带基本特征及边界确定.哈尔滨建筑大学学报,31(5):116-121.
马兆同,刘慧勤,马兆祥,1997.胶南造山带及邻近地区的重磁特征及地质解释.山东地质,13(1):92-102.
索书田,钟增球,游振东,等,2000.大别-苏鲁区残余超高压构造及其动力学意义.地球科学——中国地质大学学报,25(6):557-563.
王清晨,从柏林,1998.大别山超高压变质带的大地构造框架.岩石学报,14(4):481-492.
王清晨,张儒瑗,从柏林,等,1992.鲁东-苏北榴辉岩的构造特征及其折返机制.岩石学报,8(2):153-160.
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许志琴,张建新,徐惠芬,1997.中国主要大陆山链韧性剪切带及动力学.北京:地质出版社,1-246.
杨天南,徐惠芬,宋明春,等,1997.胶南地块的隆升-伸展构造.山东地质,13(1):67-76.
杨文采,程振炎,陈国九,等,1999.苏鲁超高压变质带北部地球物理调查(Ⅰ)——深反射地震.地球物理学报,42(1):41-52.
杨文采,程振炎,张春贺,2003.中国科学深钻选址地球物理调查与大别-苏鲁岩石圈.地球学报,24(5):391-404.
张国伟,孟庆任,刘少峰,等,1997.华北地块南部巨型陆内俯冲带与秦岭造山带岩石圈现今三维结构.高校地质学报,3(2):129-143.
张建新,杨天南,许志琴,等,1997.胶南地区的伸展作用——以胶南诸城一带为例.地球学报,18(2):122-128.
Cao,G.Q.,1990.Preli minary discusston on“Jiaonan terra-ne”.Geology of Shandong,6(2):1-10(in Chinesewith English abstract).
Chen,W.J.,Harrison,T.M.,Heizerler,M.T.,et al.,1992.The cooling history of m啨lange zone in North Jiangsu-South Shandong region:Evidence from multiple diffu-sion domain40Ar-39Ar thermal geochronology.ActaPetrologica Sinica,8(1):1-17(in Chinese with Eng-lish abstract).
Eide,E.A.,Mc Williams,M.O.,Liou,J.G.,1994.40Ar-39Argeochronology and exhumation of high-pressure to ultrahigh pressure metamorphic rocks in East Central Chi-na.Geology,22:601-604.
Faure,M.,Breton,N.L.,Lin,W.,et al.,2002.Where is theNorth China-South China block boundary in easternChina?Reply.Geology,30:668.
Faure,M.,Lin,W.,Le Breton,N.,2001.Where is theNorth China-South China block boundary in easternChina?Geology,29:119-122.
Lin,W.,Michel,F.,Wang,Q.C.,2003.Mesozoic geometryand kinematics in the Jiaodong Peninsula and itstectonic evolution.Chinese Journal of Geology,38(4):495-505(in Chinese with English abstract).
Ling,X.C.,1996.Basic characteristics and boundaries ofLudong orogenic belt.Journal of Harbin University ofCivil Engineering and Architecture,31(5):116-121(in Chinese with English abstract).Y
Ma,Z.T.,Liu,H.Q.,Ma,Z.X.,1997.Features of gravityand magnetic fields and geological explanation of theJiaonan orogenic belt and its neighbour areas.Geologyof Shandong,13(1):92-102(in Chinese with Englishabstract).
Suo,S.T.,Zhong,Z.Q.,You,Z.D.,et al.,2000.Relic UHPstructures in Dabie-Sulu region,China:Structural ex-pression and geodynamic significance.Earth Science—Journal of China University of Geosciences,25(6):557-563(in Chinese with English abstract).
Wallis,S.,Hiraji ma,T.,Banno,S.,1999.The Sulu UHPterrane:Areviewof the petrology and structural geolo-gy.International Geol.Rev.,41:906-920.
Wang,Q.C.,Cong,B.L.,1998.Tectonic framework of theultra-high pressure metamorphic zone from the DabieMountains.Acta Petrologica Sinica,14(4):481-492(in Chinese with English abstract).
Wang,Q.C.,Zhang,R.Y.,Cong,B.L.,et al.,1992.Eclo-gites in eastern Shandong-northemJiangsu region:Theirstructure and exhumation mechanism.Acta PetrologicaSinica,8(2):153-160(in Chinese with English ab-stract).
Wu,Y.B.,Zheng,Y.F.,Zhou,J.B.,2004.Neoproterozoicgranitoidin northwest Sulu andits bearing onthe NorthChina-South China blocks boundary in east China.Geo-physical Research Letters,31,L07616,doi:10.1029/2004GL019785.
Xu,G.Z.,Zhou,R.,Yan,Z.,et al.,2001.Discussion onthe evi-dences of Mesozoic lithosphere thinning and its dynamicmechanismin Jiaodong area.Geotectonica et Metallogenia,25(4):368-380(in Chinese with English abstract).
Xu,Z.Q.,Zhang,J.X.,Xu,H.F.,1997.Ductile shear zoneand dynamics of main continental mountain chain inChina.Geological Publishing House,Beijing(in Chi-nese).
Yang,T.N.,Xu,H.F.,Song,M.C.,et al.,1997.Uplift-extension structure of the Jiaonan block.Geology ofShandong,13(1):67-76(in Chinese with English ab-stract).
Yang,W.C.,Chen,Z.Y.,Cheng,G.J.,et al.,1999.Geo-physical investigations in northern Sulu UHPM belt,Part I:Deep seismic reflection.Chinese Journal ofGeophysics,42(1):41-52(in Chinese with English ab-stract).
Yang,W.C.,Cheng,Z.Y.,Zhang,C.H.,2003.Geophysicalinvestigation for site-selection of Chinese ContinentalScientific Drilling and Dabie-Sululithosphere.Acta Geo-scientia Sinica,24(5):391-404(in Chinese with Eng-lish abstract).
Zhai,M.G.,2002.Where is the North China-South Chinablock boundary in eastern China?Comment.Geology,30:667.
Zhang,G.W.,Meng,Q.R.,Liu,S.F.,et al.,1997.Huge intra-continental subductionzone at south margin of North Chinablock and present3Dlithospheric framework of the Qinlingorogenic belt.Geological Journal of China Universities,3(2):129-143(in Chinese with English abstract).
Zhang,J.X.,Yang,T.N.,Xu,Z.Q.,et al.,1997.Extensionof Jiaonan areain Shandong.Acta Geoscientia Sinica,18(2):122-128(in Chinese with English abstract).
曹国权,1990.试论“胶南地体”.山东地质,6(2):1-10.
陈文寄,Harrison,T.M.,Heizerler,M.T.,等,1992.苏北-胶南构造混杂岩冷却历史的多重扩散域40Ar-39Ar热年代学研究.岩石学报,8(1):1-17.
林伟,Michel,F.,王清晨,2003.胶东半岛中生代构造演化的几何学和运动学.地质科学,38(4):495-505.
凌贤长,1996.鲁东造山带基本特征及边界确定.哈尔滨建筑大学学报,31(5):116-121.
马兆同,刘慧勤,马兆祥,1997.胶南造山带及邻近地区的重磁特征及地质解释.山东地质,13(1):92-102.
索书田,钟增球,游振东,等,2000.大别-苏鲁区残余超高压构造及其动力学意义.地球科学——中国地质大学学报,25(6):557-563.
王清晨,从柏林,1998.大别山超高压变质带的大地构造框架.岩石学报,14(4):481-492.
王清晨,张儒瑗,从柏林,等,1992.鲁东-苏北榴辉岩的构造特征及其折返机制.岩石学报,8(2):153-160.
徐贵忠,周瑞,闫臻,等,2001.论胶东地区中生代岩石圈减薄的证据及其动力学机制.大地构造与成矿学,25(4):368-380.
许志琴,张建新,徐惠芬,1997.中国主要大陆山链韧性剪切带及动力学.北京:地质出版社,1-246.
杨天南,徐惠芬,宋明春,等,1997.胶南地块的隆升-伸展构造.山东地质,13(1):67-76.
杨文采,程振炎,陈国九,等,1999.苏鲁超高压变质带北部地球物理调查(Ⅰ)——深反射地震.地球物理学报,42(1):41-52.
杨文采,程振炎,张春贺,2003.中国科学深钻选址地球物理调查与大别-苏鲁岩石圈.地球学报,24(5):391-404.
张国伟,孟庆任,刘少峰,等,1997.华北地块南部巨型陆内俯冲带与秦岭造山带岩石圈现今三维结构.高校地质学报,3(2):129-143.
张建新,杨天南,许志琴,等,1997.胶南地区的伸展作用——以胶南诸城一带为例.地球学报,18(2):122-128.
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