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Geothermal gradients of the basins in the eastern of Algin Rift were higher than those of the basins in western of Algin Rift in Late Mesozoic,and tectonic activities were stronger,indicating a strong regional tectonic thermal event.The basins on the western of Algin Rift were all compressive depressions,their geothermal gradients were lower.
中生代晚期阿尔金断裂以东沉积盆地地温梯度普遍高于阿尔金断裂以西沉积盆地,构造活动性强,强烈的构造运动引发了岩浆活动及地壳深部热活动,表明存在一期强烈的具有区域规模的构造热事件;阿尔金断裂以西为挤压坳陷型盆地,地温梯度普遍较低。
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The pupose of the research is to develops public key encryption and digital signature shemes based on matrix canonical decomposition problem, or matrix diagonalization problem over Z/n, the ring of integers with modulo-n addition and multiplication in particular, where n is an RSA modulus.
本课题研究基于矩阵经典分解问题,特别是Z/n上矩阵对角化问题的公钥密码与数字签名算法,其中n是一个RSA模数。新算法采用由一个矩阵多项式构成的多维单向陷门函数,其单向性由矩阵对角分解问题(即通过相似变换将矩阵化为对角型的问题)的复杂性来保障,对该函数求逆的陷门由矩阵的特征值或特征向量提供。
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Tectonic subsidence play dominant role in their geometric shapes, basin fillings, sequence evolution and sediment distribution in the Wushi Sag. Outline of the sequences are in shape of box-wedge or sheet-wedge and boundaries of sequences are varied from bilateral fault to monoclinal fault overlap, so that the sequences show distinct semigrabens which overlay in different ways. Seven sequences were formed in different stage of tectonic evolution. The sequence of SQ1 formed in initial rift stage and deposited alluvial sequence. Sequences SQ2-SQ4 developed in intense rift stage and sediment lacustrine sequence. Sequences SQ5-SQ7 formed in late period of rift before thermal subsidence and deposit mere and delta sediment. The place adjacent to the synsedimentary fault is the subsidence center and depocenter; meanwhile, controlling fracture migrates in horizontal made subsidence and sedimentary center of the sag changed.
构造沉降是控制层序几何形态,充填叠置方式、演化及沉积体系分布的最重要因素:凹陷由多个半地堑在不同层序发育时期以不同方式叠置联结而成;受断层控制,层序外部形态有箱状-楔形、楔形-席状披覆型,边界终止方式有双断终止型、单断终止超覆型;不同构造演化阶段层序内部充填的沉积体系各具特征,初始断陷阶段的SQ1沉积冲积层序,强烈断陷阶段的SQ2-SQ4充填湖相层序,晚期断陷阶段SQ5-SQ7内部充填浅湖和河流三角洲沉积;同沉积断层陡坡带沉降迅速、可容纳空间快速增长,是凹陷的沉积和沉降中心,断陷期主控断裂活动时间和空间的变化导致了凹陷沉积和沉降中心的迁移。
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This thesis studies each structural layer's feature:(1) structural layer of basement:it is a Paleozoic folded basement,whose tectonic deformation and magma intrusion is fiercely,and it is affected by the early Hercynian tectonic movement and related to the underthrust and closure (C1) of Zhungaer ocean basin and the areal pressing of continents (C2-3);(2) structural layer of Permian:due to the regional extending and fault depression role in mid-Hercynian,it occurred to the combinations of structure and magma in Santanghu basin and it's periphery area,such as A-granite's stock,batholiths and diabase's dike.
二叠系构造层:受中海西区域性伸展断陷作用的影响,盆地及其周缘地区发育与伸展构造有关的构造-岩浆组合,如呈岩株、岩基状侵位的A型花岗岩以及呈岩墙状侵位的辉绿岩等。
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In the early chasmic stage of Luliang Movement, rift-type volcanic-sedimentary rocks of Luliang Group and associate Gaijiazhuang gneissic granite formed. The Gaijiazhuang gneissic granite with age of 2364?
吕梁运动早期阶段为裂陷阶段,形成裂陷型的吕梁群的火山和沉积岩系,相伴产生了盖家庄片麻状花岗岩,形成于2364?
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These extensional basins were formed at the background which was the tectonic dynamic of horst-uplifing and graden -downfalling at continental crust of the Qinling under slow convergence comprehensively deep lithosphere.
中泥盆世,在伸展作用增强的背景下,在柞山一级盆地内,由次级同生断裂作用形成了断陷型三级构造热水沉积成矿盆地。
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The early stage of the Yanshan movement generated an Early Jurassic downfaulted basin and a Middle Jurassic compressional-downwarped coalaccumulating basin.In the middle stage,the Mid-Late Jurassic witnessed the formation of a volcanic downfaulted basin bounded by NW and NE deep faults,intermediate-basic and acid volcanic eruption and hypabyssal and near-sur...
燕山运动早期形成早侏罗世断陷盆地和中侏罗世挤压坳陷型聚煤构造盆地;中期中晚侏罗世形成被NW、NE向深大断裂围限的火山断陷盆地,中基性—酸性火山喷发和浅成、超浅成中酸性岩浆侵入,晚侏罗世末形成了一系列NNE向褶皱和逆冲推覆构造带;晚期早白垩世再次形成断陷盆地和开阔平缓褶皱,义县组不整合在火山岩之上,晚白垩世处于挤压造山后的山体隆升阶段,左云组不整合在义县组之上,伴随有壳源型花岗岩侵入,NW、NE向断裂复活,形成地堑、地垒式断裂组合,导致山体隆升。
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Turpan-Hami basin is a typical multicycle and multiplex basin, it has both the character of depression basin and that of rifted basin.
吐哈盆地是一个典型的多旋回叠合型盆地,既具有断陷型盆地特征,又具有坳陷型盆地性质。
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The crust-mantle background and space distribution of palaeogene source rock in the east of China,the tectonic background,sediment and basin environment,state of organic matter,abundance of organic matter and type of organic matter in source rocks and geothermal field characters are analyzed.
对我国东部下第三系源岩发育的壳幔背景及空间展布、源岩发育的构造背景、沉积和盆地环境、有机质赋存状态、有机质丰度、类型及地温场特征等方面的研究表明,秦岭-大别和郯庐断裂的生成演化是区内下第三系盆地发育的主要构造控制因素,渤海湾北东向裂谷型盆地规模大、切割深,有效烃源岩最为发育;南华北近东西向-北西西向断陷型盆地规模小、切割浅,有效烃源岩相对最不发育;而立交桥型的南襄盆地有效烃源岩发育程度介于两者之间。
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Structural layer of Permian:due to the regional extending and fault depression role in mid-Hercynian,it occurred to the combinations of structure and magma in Santanghu basin and it's periphery area,such as A-granite's stock ,batholiths and diabase's dike.
二叠系构造层:受中海西区域性伸展断陷作用的影响,盆地及其周缘地区发育与伸展构造有关的构造-岩浆组合,如呈岩株、岩基状侵位的A型花岗岩以及呈岩墙状侵位的辉绿岩等。
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cenotaph:纪念碑, 衣冠冢, 纪念塔
cenospecies | 群型种,杂交种 | cenotaph | 纪念碑, 衣冠冢, 纪念塔 | cenote | 沼穴,洞状陷穴(尤指墨西哥尤加坦半岛的灰岩坑)
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Mesosome:中介体
LPS)的主要功能细菌L型(bacterial L form)中介体(mesosome)是部分细胞膜内陷,折叠,卷曲形成的囊状物,多见于革兰阳性细菌细胞质(cytoplasm)及内含物种(species)是细菌分类的基本单位.生物学性状基本相同的细菌群体构成一个菌种;
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orogeny:造山作用
学者们认为,在用活动论研究大地构造时,必须以对立统一的思想,把裂陷作用(Tophrogeny)和造山作用(orogeny)以及相关的剪切作用联系起来进行研究. 板块汇聚产生的造山作用使地壳和岩石圈缩短,形成造山带等挤压型构造;
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surfactant:表面活性物质
(1)表面活性物质(surfactant)缺乏:肺表面活性物质由Ⅱ型肺泡上皮细胞生成是一种磷脂蛋白质复合物起主要作用的是二棕搁酰卵磷脂表面活性物质衬覆在肺泡内面具有降低肺泡的气-液交界面表面张力的作用有稳定肺泡防止肺泡萎陷的功能如果表面活性物质缺乏则肺泡表面张力增大肺泡回缩力增加肺泡即萎陷造成很多处微型肺不张(microa
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trap brilliant cut:陷井明亮琢型
transverse 横向的 | trap brilliant cut 陷井明亮琢型 | trap cut 陷井琢型:即阶梯琢型