造山带
- 名Orogenic belt;orogenic zone
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Qm-F-Lt,Qt-F-L三角图解显示,南部坳陷的砂岩颗粒组分落入再旋回造山带,极少量落入再旋回造山带与岩浆岛弧混合带,说明古近纪南部坳陷构造活动整体比较强烈。
Qm-F-Lt , Qt-FL triangular diagram show that sandstone componental particles mainly falling into recycling orogenic zone , a very small amount into recycling of orogenic belts and volcanic arc mixing zone , indicating that there were overall more intensive tectonic activities of south depression in the Paleogene . 5 .
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滇西特提斯造山带的演化及基本特征
Evolution and basic characteristics of Tethys orogenic zone , western Yunnan
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运用GIS实现造山带侵蚀与沉积建模的探讨
In approaching models for erosion and deposition in orogenic belt by GIS
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中国阿尔泰造山带花岗岩Pb同位素组成特征:幔源成因佐证及陆壳生长意义
Pb Isotopic Composition of Granitoids from the Altay Orogen ( China ): Evidence for Mantle-derived Origin and Continental Growth
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陆-陆碰撞造山带中压型变质作用的pT轨迹&以南秦岭佛坪地区为例
PT path of medium-pressure metamorphism of continental collision orogenic belt - exemplified by the southern Qinling orogenic belt
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兴蒙造山带正ε(Nd,t)值花岗岩的成因和大陆地壳生长
Genesis of positive ε( nd , t ) granitoids in the Da Hinggan mts. - mongolia orogenic belt and growth continental crust
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火成岩组合的K(60)值不能用于估算中国东部中生代造山带地壳厚度。
The K_ ( 60 ) value of igneous rock association cannot be used to estimate the crustal thickness of the Mesozoic orogenic belts of eastern China ;
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东天山造山带右行剪切变形及构造演化的~(40)Ar-~(39)Ar年代学证据
( 40 ) ~ ar - ( 39 ) ~ ar chronological evidence of dextral shear and tectonic evolution of the eastern Tianshan orogenic belt
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阿尔泰造山带南缘镁铁质&超镁铁质杂岩体的Sr、Nd、O同位素地球化学及其源区特征探讨
Sr , Nd and O Isotope Geochemistry of the Mafic & Ultramafic Complexes in the South Margin of Altay Orogenic Belt and Discussion on Their Sources
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中亚蒙古造山带东段造山事件的~(40)Ar-~(39)Ar同位素年代学证据
~ ( 40 ) Ar - ~ ( 39 ) Ar isotope chronological evidence for the orogeny in the eastern segment of the Central Asian-Mongolian orogenic belt
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研究了北祁连山造山带火山成因块状硫化物矿床(VMS)类型、金属来源与容矿围岩、火山岩类型及其构造环境的关系。
The relationships between VMS types , source of metal , host rock , volcanic rock types and tectonic setting have been studied in this paper .
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大别造山带东部假玄武玻璃及其围岩的K-Ar和~(40)Ar-~(39)Ar年龄及地质意义
K-Ar and ~ ( 40 ) Ar - ~ ( 39 ) Ar Ages of Pseudotachylites and Their Wall Rocks from the Eastern Dabie Mountains and Their Implications
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对大别-苏鲁造山带27个高级变质岩(以榴辉岩和片麻岩为主)中锆石进行了337次微区离子探针U,Th和Pb测定和U-Pb年龄研究。
337 zircon U , Th and Pb contents , and Pb isotopic compositions of 27 high-grade metamorphic rocks , mainly eclogites and gneisses from Dabie-Sulu orogen were analyzed by using ion micro-probe technique .
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苏鲁造山带五莲新元古代花岗岩类成因的Sr-Nd同位素证据
Petrogenesis of Neoproterozoic Granitoids from the Wulian Region in the Sulu Orogen : Sr-Nd Isotopic Constraints
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研究高压麻粒岩的变质作用和PTt轨迹已成为建立造山带演化构造模式的最重要途径之一。
Studies on the metamorphism and PTt path of the granulites now become to be one of the most important methods to module a structural evolvement pattern of erogenic belts .
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阿尔金造山带上地壳的平均Q值较高(约500),这可能由于结晶基底埋藏较浅,基岩出露,因此地震波在此处传播能量衰减较慢所致。
The upper crust of the Altun orogenic belt has a high average Q value ( about 500 ) . It is likely caused by shallow depth of crystalline basement , outcrop of basement rocks , and slow attenuation of seismic wave .
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热水流体系统和贱金属成矿作用发育于义敦岛弧碰撞造山带上的弧间裂谷盆地内,并受其内部的一系列局限盆地及SN向基底断裂-裂隙系统控制。
The hydrothermal fluid system and base metallic mineralization were developed in interarc rift basins of Yidun arc-collision orogenic belt . The emplacement of orebodies was controlled by a series of restricted basins and SN-trending fault-fissure systems .
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对其进行全岩RbSr等时线法测年,获得797.7±1.5Ma的地质年龄,揭示苏胶造山带于新元古代中期已开始向裂解转化。
The age of ( 797.7 ± 1.5 ) Ma , which is based on the Rb Sr isochron method of whole rock , indicates that the Su jiao orogenic belt began to split from mid Neoproterozoic .
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锆石是U-Pb计时的首选对象,对于地质历史复杂的变质岩地区,如大别碰撞造山带的年代学研究,具有不可替代的重要性。
Zircon is the most widely used mineral for U Pb age determinations , and shows particular importance to a complicated geological history of a metamorphic terrain , like Dabie Shan collision orogen .
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东昆仑造山带花岗岩类Pb-Sr-Nd-O同位素特征
The Features of Pb-Sr-Nd-O Isotope Composition of Granitoids in Eastern Kunlun Orogenic Belt
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华北板块北缘发育一条中元古代晚期大陆边缘碰撞造山带,它由内蒙西部狼山起向东延伸到辽西和吉林东部一带,全长2000余km。
There is the collision orogenic belt which was developed in late middle Proterozoic era , in north margin of North China plate . The belt extends from Langshan in Inner Mongolia to Western Liaoning province and Eastern Jilin province . Its length is over 2 000 km .
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秦岭北缘洛南&栾川断裂带是华北板块南缘与秦岭造山带汇聚-拼合带,具有SW→NE向俯冲兼左旋走滑的性质,并构成叠瓦状构造和双重构造的组合样式。
The Luonan-Luanchuan fault zone on the northern margin of the Qinling Mountains is a convergence belt between the North China plate and Qinling orogenic belt with the natures of SW-NE-directed subduction and sinistral strike-slip motion . It shows an association style of imbricate structure and duplex structure .
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东秦岭造山带早古生代(500Ma~400Ma)分别在北秦岭和南秦岭发育两条构造-岩浆杂岩带。
There are two different Early Paleozoic ( 400Ma ~ 500Ma ) tectono-magma complex belts in the North and South Qinling of the East Qinling orogenic belt .
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东昆仑式是元古代造山带TTG陆壳背景基础上古生代&早中生代对流地幔物质和热输入,改造元古宙造山带基底的方式;
The East Kunlun mode is that the basement of the Proterozoic orogenic belt was reworked by the heat input and materials of the Paleozoic-early Mesozoic convective mantle formed on the background of TTG continental crust of the Proterozoic orogenic belt ;
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其中,第二、三岩浆活动阶段分别早于燕山造山带在中、晚侏罗世末的两次主造山幕发生的时代,所以燕山地区主造山幕的P-T-t演化为逆时针轨迹。
The second and third stages of magmatism occurred before the main orogenic episodes in the end of mid-Jurassic and late-Jurassic , respectively ; therefore , the main orogenic episodes have counterclockwise ( CCW ) P-T-t path .
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锆石SHRIMPU-Pb定年结果给出2个铜矿床含矿斑岩的时代分别为127.8Ma±2.6Ma和112.0Ma±2.3Ma,处于造山带演化的碰撞后阶段(班公湖-怒江洋盆的闭合时间为145Ma)。
Zircon SHRIMP U-Pb dating yielded ages of 127.8 ± 2.6 and 112.0 ± 2.3 Ma for the two deposits respectively and indicates that the two deposits formed in a post-collisional stage of the orogen evolution ( the Bangong Co-Nujiang ocean basin closed at 145 Ma ) .
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新疆造山带大地构造相研究与分类
Research and classification on tectonic facies of orogenic belts of Xinjiang
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大别造山带地壳的元素丰度
Element Abundances of the Continental Crust in the Dabie Orogenic Belt
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秦岭造山带地壳构造与楔入成山
The crustal structure of the Qinling orogen and wedging mountain building
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古生&中生代秦岭造山带发展演化与金属成矿作用
Evolution of Qinling Paleozoic - mesozoic orogenic belt and metal metallization