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Combining the surface geology survey and comprehensive interpretation of seismic data, three structural units are divided in the subsurface of northen section of Longmen mountain, they are surface and shallow layer structural units, imbricate unit in subsurface and monocline unit in foothill belt.

结合地表地质的观察和地震资料的综合解释将龙门山北段地区地腹构造划分为3个构造单元,即地表及浅层推覆构造单元、地腹叠瓦式构造单元以及山前单斜构造单元。

On the basis of plan form and crosscutting relationship of the faults, two kinds of tectonic systems were developed in Wu-Xia area, one was strike north-east, and another was strike east-west, the first was developed early and control the structural framework of Wu-Xia area, after that three times longitudinal compress action was happed. According to the intensity of tectonic deformation, The Wu-xia faulted zone from north to south can be divided into the thrust faulted belt, the fault fold belt and the monocline belt. from east to west have three regulatory faults, Wuerhe fault fold belt, Wuxia thrust faulted belt and Xiahong fault fold belt. Base on that 9 secondary structural unit can be divided.Structural accommodation zone and the distribution of reservoir strata have intimate business connection. Usually, Structural accommodation zone was the source zone of arenaceous sediment. The Wu-xia faulted zone have 3 kinds of structural accommodation, concordant approach, concordant overlap and concordant colinearity.

首先研究本区的构造特征,根据断裂的平面形态及相互切割关系,乌夏地区发育两种构造体系:北东向构造体系和近东西向构造体系,前者形成早,控制了该区的构造格局,晚期有3次近南北向挤压作用叠加;乌夏地区南北根据构造变形的强度不同分为冲断带、断褶带、单斜带,东西由于横向调节断层的存在分为乌尔禾断褶区、乌-夏冲断区和夏-红断褶区,进一步划分为九个次级单元;构造调节带与储集层的分布关系密切,通常是大量富砂质沉积的源区,乌夏地区发育三种类型的构造调节带:同向接近型、同向叠覆型和同向共线型。

G. seismetic data post-stack processing technique, multi-component demarcating technique, elaborate description technique for the fault-block structure, technique of layer forecasting, fault sealing analysis technique, comprehensive estimate technique of fault-block, comprehensive analysis and estimate technique of remaining oil etc.

本文从构造评价、储层评价、断层封堵性评价、封闭史评价、含油性评价及剩余油评价等多方面研究和揭示复杂断块油藏和剩余油形成机制和分布规律,并利用地震资料叠后处理技术、多元综合标定技术、精细断块构造描述技术、储层预测技术、断层封堵分析技术、断块综合评价技术、剩余油综合分析与评价等技术对惠民凹陷复杂断块综合研究、描述和预测,形成一套配套新技术。

Based on the regional tectonic evolution, combined with the high precision isotopic ages from this paper and other geologists, we have some new acquaintances as follows: 1 There has no Caledonian granite belt distributed in north margin of North China Craton. So, the traditional evolving model of North China Carton, which formed on this idea and the acquaintance about the collision of North China plate and Siberian plate, must be incorrect; 2 The age date show that the earliest magmatic activity began since late-Palaeozoic Permian, which is inconsistent with the previous idea that there were Caledonian and Hercynian active continental margin in the north of North China Craton and in the south Xingkai Massif. 3 the crust and lithosphere were thickened by the subduction and collision of Siberia plate and North China plate during Late Paleozoic. The magma is formed when the crust is heated and melts caused by thickened lithosphere delamination and caused the Asthenosphere upwelling. But only a little basaltic magma erupted, most magma underplate under the bottom of the crust. Thermal energy derived from basaltic magma underplating made the middle and lower crust melt partially and the late Permian-early Triassic granites is formed in large scale.

根据区域构造演化分析,并结合本文及他人高精度同位素年龄,我们对延边花岗岩形成的大地构造环境有了新的认识:1在华北地台北缘并不存在所谓的加里东花岗岩带,因此,建立在此之上的传统的华北地台北缘演化模式及有关西伯利亚板块与华北板块的碰撞拼合的认识也必然是不正确的;2华北地台北缘和兴凯地块南缘不存在加里东期和海西期花岗岩带,表明两地块边缘最早的花岗质岩浆活动始于晚古生代的二叠纪,即不存在传统观点所认为的加里东期或海西期活动陆缘;3晚古生代由于西伯利亚板块与华北板块的俯冲碰撞,致使地壳和岩石圈增厚,导致加厚岩石圈发生拆沉作用,使得软流圈上涌,加热地壳使之熔融形成岩浆,但玄武质岩浆少量喷出地表,大部分底侵于地壳底部,形成下地壳高密度的玄武质底侵层,玄武质岩浆底侵的热能引起中下地壳广泛部分熔融,形成大面积分布的晚二叠世—早三叠世花岗岩。

The analysis of weathering crust characteristic of lower Permian Kalagang group in Malang sag, Santanghu basin suggests that the paleo-weathered crust includes weathering clay ground, strong weathering rubble layer, weak, weathering block-stone layer and unweathered rock layer in vertical and was distributed under the unconformity interface and presented in planar manner horizontally.

对三塘湖盆地马朗凹陷下二叠统卡拉岗组风化壳特征的分析,认为古风化壳纵向上分为风化粘土层、强风化碎石层、弱风化块石层以及未风化岩石层等,平面上呈面状分布于不整合界面之下,剖析该区古风化壳成藏地质条件和构造演化,探讨了可能发育油气藏类型及与风化壳的关系,并指出了该区下一步下二叠统卡拉岗组有利的勘探目标是在P2t剥蚀线与P1k剥蚀线之间范围内,其次为卡拉岗组剥蚀线以东地区。

Seismic imaging in Northeast Sichuan is greatly influenced by the widely distributional carbonate,strata juxtaposition with swelling and concaving,superimposition and connection between different wave fields,complex interlayer contact conditions,static corrections, high and steep structure ,as well as rapid change of seismic velocity in the area.

针对川东北地区碳酸盐岩高度发育,地层隆凹相间,各种波场交叉叠置,层间接触关系复杂,以及静校正问题、高陡构造及速度变化快等影响因素突出的特点,通过分析地表因素、有效波频率、静校正量及膏岩层效应对地震资料品质和成像的影响,研究和开发出三维折射波静校正以及构造建模层速度约束偏移成像等一系列处理技术,消除了众多因素对地震成像的影响,并在宣汉达县地区得到良好的应用效果,为普光特大气田的大规模开发奠定了基础。

According to the geological property of the research area, we apply sequence indicator simulation method if the reservoir type is discrete variable. Sequence Gauss simulation method is used if the type of reservoir property is continuous variable. Structural model (single well model, fault model and bedding model) and property model are built. The 3D distributions of reservoir parameters are established based on structural model. Three advantage oil distribution of the oil field are pointed out through overlap of the reservoir parameters distributions.

根据研究区的地质特征,建模过程中的储层类型属于离散变量,选用序贯指示模拟方法;储层参数属于连续变量,则选用序贯高斯模拟方法,对储层分别实现构造建模(单井模型、断层模型和层面模型)和属性建模,在构造模型的基础上建立储层参数的三维分布,通过储层参数的分布的叠合研究,在该油田指明了三个有利油气分布区块

It experienced two stages of basin-forming structural transformation, giving rise to the deep- and shallow-level systems of overlapped faults in the north of the Taibei uplift: the deep-level fault system is a basement thrust one marked by a combination of thrusts and backthrusts, and the shallow-level fault system is a normal fault one, marked by a combination of grabens and horsts.

经过两期成盆构造变革阶段,塔北隆起北部垂向上叠加深,浅层两组断裂系统:深层断裂系统为基底逆冲断裂,发育冲断构造,背冲构造组合;浅层断裂系统为正断层,发育地堑,地垒构造样式组合。

The orogenic strata have following characteristics: During the subduction and intracontinental orogeny, the strata experienced dramatic tectonic migration and mixing, resulting in various tectonic features. A short sequence usually composed of tectonic slices of various origins, times, deformations and metamorphisms, and scales. The original sequence was badly destroyed. The extant fragments of orogenic belt usually took form as melanges, especially the accretion complex wedge generated in subduction zone, which is contrary to the Law of Superposition. The original location of the accretion is also contradicted with the Law of Original Horizonality, because the accretion is oblique with high degree. Marine rocks, volcanic rocks of continental margin and metamorphic rocks were well-developed in the orogenic belt, especially ultra-basic, basic rocks were wide spread and were intensely metamorphosed, accompanied by metamorphic slices returned from hundred kilometers underground with ultra-high pressure and magma movements during syn-orogeny and post-orogeny, thus formed the colorful landscapes.

造山带非史密斯地层构成具如下独特性和复杂性:造山带在俯冲碰撞和陆内造山阶段,发生过强烈的构造搬运和构造混杂,构造形迹多样化,垂直不长的地层体往往是众多不同来源、不同时代,不同变形变质程度,不同大小的各种构造岩片拼贴体,地层原始层序被严重肢解、破坏;尤以产于俯冲带的俯冲增生杂岩楔的原始形成方式与史密斯地层学的&层序叠覆律&老下新上的顺序正好相反,其混杂岩增生方式是老的&片体&在上,新的&片体&阶段性拼贴在老的&增生片体&的斜下方,这种增生片体的原始位置亦与&原始水平律&相悖,即增生片体一般保持较高角度倾斜;在岩石类型和变质程度上,造山带海相和古陆缘火山岩以及变质岩普遍发育,尤其是超基性、基性岩系分布广泛,变质作用较强,伴有从百余公里以下深部超高压变质岩片的折返和同造山期与造山后期岩浆活动,构成极为复杂的地质景观。

In practical study, the essential flow is""on the basis of the study of the faults, strata denuded thickness and original thickness, analyzing the controlling effect of the faults to the sedimentation and denudation, and combined with the areal geology background, reconstructing the basin prototype of each stage"". 2. As the basic theories and methods of the calculation of the denuded thickness, such as, the methods of cosmogenic nuclides, wave equation, apatite fission track, structural sections, acoustic wave, vitrinite reflection, etc, were argued detailedly , and their applicable ranges were analyzed , the denuded strata thickness of each structural layer layer of pre-Tertiary was reconstructed.

对宇宙成因核素法、波动方程法、裂变径迹分析法、构造横剖面法、声波时差法、镜质体反射率法等计算剥蚀量方法的基本原理进行充分论证、改进,分析了各方法的适用范围,在此基础上,综合充分运用上述方法,计算了济阳坳陷前第三系各构造层在不同时期的剥蚀量,绘制了中生代时期古生界顶面的地层剥蚀量等值线图、新生代时期古生界顶面的地层剥蚀量等值线图、白垩纪沉积时侏罗系剥蚀等值线图、新生代沉积期白垩系剥蚀等值线图、新生代沉积期侏罗系剥蚀等值线图等图件,并通过对古生界地层的热变质程度分析,确定了有1500~2000m的早、中三叠世的原始沉积地层在晚三叠世被剥蚀殆尽。3。

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