助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   推覆剪切作用 的翻译结果: 查询用时:0.009秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

推覆剪切作用
相关语句
  nappe shearing starting
     The study of 40Ar/ 39Ar isotope chronology reveals that the activity of Qiugemingtashi—Huangshan ductile shear zone shows different features in different periods of time. In the early stage, the shear zone was characterized by nappe shearing, starting later than 300 Ma and lasting at least to 283.7 Ma. However, it can be sure that the activity ended at 280.2 Ma.
     系统的Ar-Ar同位素年代学研究表明,该剪切带的活动在时间上具有多期性:剪切带早期为挤压推覆剪切作用,发生于300Ma之后,至少延续到了283.7Ma,但在280.2Ma时已经终止;
短句来源
  “推覆剪切作用”译为未确定词的双语例句
     2.The early and main phase structural deformations display strong bedding(foliation)ductile overthrust shearing nature.
     2、早期和主期构造变形显示强烈的顺层(片)韧性推覆剪切作用性质,是深层次构造变形的产物。
短句来源
     Because the metallic deposits in the east Tianshan region are mostly located in this shear zone, the above results not only deepen the study on the tectonic history of the east Tianshan Mountains, but also provide new age evidence for further understanding the control of the shear deformation on mineralization.
     结合区域地质资料,笔者认为早期的挤压推覆剪切作用可能与东天山晚古生代板块俯冲—碰撞过程有关,而晚期的走滑剪切变形则可能反映了东天山北部地区碰撞后陆内变形特征。
短句来源
  相似匹配句对
     THE CHAOHU NAPPE STRUCTURE
     巢湖推覆构造
短句来源
     NAPPE TECTONICS IN ANHUI
     安徽的推覆构造
短句来源
     The propagation of crack under the shearing stress
     剪切作用下裂纹的传播
短句来源
     (3) meteoric water percolating downward along the fault was heated at depths to form hot brine, and then the hot brine leached out gold from the Xinghongpu Formation.
     剪切作用形成的金矿是主体。
短句来源
     Their distribution are strongly controlled by nappe structure,NE-trending shearing structure and interstratal delaminating structure.
     矿床分布严格受推覆构造及其剪切作用形成的北东向剪切构造与层间剥离构造控制。
短句来源
查询“推覆剪切作用”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


The analysis of the structural sequence of the widespread Mid-Upper Proterozoic strata in the area of Wenduermiao,Inner Mongolia,tectonicly, he northern margion of the north China platform--south of the Baiyunebo Caledonian folded zone,proves that. 1.The structural deformation shows an evolution process from plastic to brittle character,namely,the early phase of deformation is characteri- zed by intra-bedding(intrafolial)overturned fold or recumbent fold;in the main phase,folds,linear and planar structure were...

The analysis of the structural sequence of the widespread Mid-Upper Proterozoic strata in the area of Wenduermiao,Inner Mongolia,tectonicly, he northern margion of the north China platform--south of the Baiyunebo Caledonian folded zone,proves that. 1.The structural deformation shows an evolution process from plastic to brittle character,namely,the early phase of deformation is characteri- zed by intra-bedding(intrafolial)overturned fold or recumbent fold;in the main phase,folds,linear and planar structure were well developed,and belongs geometricly to the Ic and Ⅲ types in the J.G.Ramsay classifica- tion(1967);brittle-ductile kink structure and fracture cleavages domina- ted the later phase of deformation. 2.The early and main phase structural deformations display strong bedding(foliation)ductile overthrust shearing nature.They are the pro- ducts of high grade deformation 3.The regional correlation on structural deformation characteristics and evolution sequence suggests that the strata at the studied area should be grouped under the Baiyunebo Group of Mid-Upper proterozoic Subera- them,the previous data placing them under the Ordovician-Silurian system are mistaken.

华北地台北缘、内蒙古温都尔庙—白云鄂博加里东褶皱带南侧,广泛分布的中晚元古代地层构造序列分析表明:1、构造变形由塑性向脆性演化,即早划变形以层(片)内同斜或平卧褶皱为特征;主期褶皱及面线组构发育,构造形态属 J.G.Ramsay(1967)分类中接近Ⅱ类的 lc 型和Ⅲ类,晚期变形则以脆—韧性的膝折构造和破劈理型式出现。2、早期和主期构造变形显示强烈的顺层(片)韧性推覆剪切作用性质,是深层次构造变形的产物。3、构造形变特征和演化序列的区域对比结果认为,研究区的岩层应属中上元古界的白云鄂博群,以往资料将其置于奥陶—志留系是错误的。

The study region located in Kuda, west Kunlun, Xinjiang, which is an area with low research level and very limited geological information. There is a set of metamorphic rocks with low amphibolite facies metamorphic grade from 153km to 174km along Xin Zang highway (from Yecheng, Xinjiang, to Shiquanhe, Tibet), which was thought as Precambrian basement by other authors, but no one provided isotopic age. This paper provides valuable 40 Ar/ 39 Ar data for the study of geological evolution of west...

The study region located in Kuda, west Kunlun, Xinjiang, which is an area with low research level and very limited geological information. There is a set of metamorphic rocks with low amphibolite facies metamorphic grade from 153km to 174km along Xin Zang highway (from Yecheng, Xinjiang, to Shiquanhe, Tibet), which was thought as Precambrian basement by other authors, but no one provided isotopic age. This paper provides valuable 40 Ar/ 39 Ar data for the study of geological evolution of west Kunlun. The authors realize that the metamorphic rocks are products of ductile shear activation on the basis of field observation and lab analysis. Metamorphic minerals hornblende and biotite from ductile shear zone were dated by 40 Ar/ 39 Ar method in this paper, plateau and isotope age were obtained. The plateau ages of 452 Ma and 428 Ma have been obtained in hornblende and biotite which were determined at five temperature interval from 900℃ to 1300℃ and from 900℃ to 1400℃ respectively, representing the cooling time of the main metamorphic event. The isotope ages of hornblende and biotite are 451 Ma and 426Ma, respectively. It is concluded that the plateau age coincides with isochron age. The initial argon ratio of hornblende and biotite is 292.3 and 290.5 respectively, which means no excess radiogenic Ar existing in hornblende and biotite and no argon loss. It is interesting that the metamorphic age of ductile shear zone is approximately to the age of the "No. 128" pluton which was dated by 40 Ar/ 39 Ar method, implying they are the same products of the tectonic movement. The age of ductile shear zone in Kuda, west Kunlun is belong to early Paleozoic, which is not the Precambrian basement. It is possible that the duration of ductile shearing is at least 25Ma.

西昆仑库地以南有一套变质变形较强的岩系 ,前人依照区域对比关系将其划为前寒武的古老基底。对西昆仑早期构造演化的论述均基于该观点 ,但没有提供确凿的同位素年代学证据。笔者通过野外观察、室内研究 ,确认库地以南的变质变形岩系是大型韧性推覆剪切作用的产物。通过对新生变质矿物角闪石和黑云母单矿物的 4 0 Ar/39Ar年龄分析 ,确定剪切变质年龄为 42 6- 451 Ma,说明库地的变质变形岩系是形成于早古生代晚期的一条大型韧性剪切带 ,这对于解释西昆仑的早期构造演化具有重要意义。

From our detail structural investgation in the Xinxian area of the northwestern Dabie, seven structural units have been recognized, which include : (1) Mafan fold belt (MFB), (2) Liangting melange belt (LMB), (3) Laoshan fold belt (LFB), (4) Sujiahe thrust sheet (STS), (5) Xong?Huwan shear belt (XHB), (6) Kafang gneiss dome (KGD), and (7) Pengdian shear belt (PSB)(Fig. 1). The MFB is the northernmost unit and consists of foliated amphibolites, quartzofeldspathic schists, and intercalated leptynites and marbles...

From our detail structural investgation in the Xinxian area of the northwestern Dabie, seven structural units have been recognized, which include : (1) Mafan fold belt (MFB), (2) Liangting melange belt (LMB), (3) Laoshan fold belt (LFB), (4) Sujiahe thrust sheet (STS), (5) Xong?Huwan shear belt (XHB), (6) Kafang gneiss dome (KGD), and (7) Pengdian shear belt (PSB)(Fig. 1). The MFB is the northernmost unit and consists of foliated amphibolites, quartzofeldspathic schists, and intercalated leptynites and marbles called the Erlangping Group. The MFB is pervasively affected by middle?small scale, tight to isoclinal folds. Dominant foliations are S?dipping. Petrologic affinities indicate that the MFB protolith may have originated from a Palaeozoic arc developed along the southern margin of the Sino?Korean craton. The LMB is characterized by a chaotic block assemblage and penetrative shear deformation. Blocks include marble, chert, gneissic amphibolite, and garnet?plagiogneiss . The melange matrix is mylonitic and exhibits mineral assemblages indicating greenschist?facies recrystallization. Shear fabrics include S?C structure, mica fish, asymmetric recrystallized tails of quartz lenses, together with the south?dipping shear foliation and small asymmetric fold structures, all indicating a top?to?north shear sense. Thses have been overprinted by a dextral shear deformation. The LFB forms the hanging wall of the LMB. The section reaches a maximum structural thickness of 6 km and is composed of interbedded mica?quartz schists and schistose amphibolites of the upper Proterozoic Guishan Formation. Moderate?to tight?folds and penetrative south?dipping foliations are prevalent. These folds are generally asymmetric, exhibiting north vergence and E?W striking, subhorizontal fold axes. The STS is bounded by a folded thrust dipping to the south from the LFB and dipping to the north from the XHB. It consists of Devonian unmetamorphosed to lower greenschist facies rocks that are affected by predominately south?vergent thrust faults, inclined to recumbent folds, and slaty cleavage that all exhibit a top?to?south shear sense. Structurally underlying the STS, the XHB is defined by a 3~5 km thick zone of mylonitic gneisses that contains sheared eclogite. Mylonitic foliations affecting the XHB generally dip to the north. Two generations of S?C mylonitic fabrics consisting of top?to?north thrust sense overprinted by subhorizontal dextral shear have been recognized. With a NWW?SEE strike, the PSB consists of gneisses intercalated with sheared eclogite and ultramafic rocks. Top?to?NE shear fabrics defined by mica?fish and S?C structures are largely obliterated by steep dipping foliations, subhorizontal lineation defined by phengite and amphibole, and boudinage of eclogite, which all clearly indicate a dextral shear sense. The final unit (KGD) consists of gently domed gneiss and intercalated eclogites and occupies a triangle area of over 500 km 2 bounded by the XHB to the north and by the PSB to the southwest. The shallowly inclined foliation within the KGD contrasts markedly with the >45° dip angles that characterize the XHB and PSB. A domal structure is centered approximately on Kafang. The MFB may belong to a Paleozoic southern margin of the Sino?Korean craton. The LMB has been interpreted as the suture position between the Sino?Korean and Yangtze cratons. History of deformation in the western Dabie has been suggested: (1) folding with W?E strike followed by (2) top?to?north shear, (3) later dextral strike?slip faulting and (4) doming event related to extension.

将大别造山带西段划分为 7个二级构造单元 ,从北向南依次为 :(1)马畈褶皱带 ;(2 )凉亭混杂岩带 ;(3)牢山褶皱带 ;(4 )苏家河滑覆席 ;(5)熊店 -浒湾韧性剪切带 ;(6 )卡房片麻岩穹窿和(7)彭店韧性剪切带。其中马畈褶皱带属华北板块南缘 ,凉亭混杂岩带可能代表碰撞缝合带位置。野外构造变形特征反映有 4期依次发生的构造作用 :(1)近南北向的褶皱作用 ;(2 )从南向北的韧性推覆剪切作用 ;(3)右旋走滑韧性剪切作用 ;(4 )垂向隆升作用和与其有关的伸展滑脱作用。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关推覆剪切作用的内容
在知识搜索中查有关推覆剪切作用的内容
在数字搜索中查有关推覆剪切作用的内容
在概念知识元中查有关推覆剪切作用的内容
在学术趋势中查有关推覆剪切作用的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社