新生界的
- 与 新生界的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on the theory of Sequence Stratigraphy and the systematically analysis of strata which was closely focused on Lithostratigraphy, Biostratigraphy, Paleoecology Event Stratigraphy and Sequence Stratigraphy, four long-term base-level cycles can be recognized in the Mesozoic, each long-term base-level cycles can be further divided into intermediate-term to short-term base-level cycle. Eight intermediate-term base-level cycles are recognized in Mesozoic; Cenozoic can be divided into two structural base-level cycles, and can be further divided into seven long-term baselevel cycles.
应用层序地层学理论,在详细的岩石地层、生物地层、生态地层、事件地层和层序地层为核心的综合地层研究基础上,将中生界划分为四个长期基准面旋回,每个长期基准面旋回内部又可进一步识别出更次一级的旋回,侏罗系内部共可识别出8个次级旋回;根据钻井层序地层与地震地层划分结果,将北缘地区新生界划分为两个构造基准面旋回,其内部又可进一步划分为7个长期基准面旋回。
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Taking the plate tectonics as leading theories, combining outcrop, seismic techniques, drilling and logging datum, inter-verifing manifold researching methods, The paper has amply researched the region. discussed the coupling relation of basin-mountain and the geodynamics system; analyzed geologic tectonic characteristics of the basin; confirmed superposed alteration in Mesozoic of the basin; recompartmentalized tectonic units of the researching region and the basin; studied the tectonic evolution of the basin since Mesozoic; ascertained four large tectonic layers and five tectonic evolution process stages in different ways of formation and tectonic alteration; established different tectonic stages、compages、models and sedimentary filled processes, based on the organic geochemistry and oil-gas geologic characteristics in middle Cenozoic of the basin, the conclusions have been summarized in the paper, such as:The primary source rock in lower Permian and subordinate source rock in upper Triassic are developed in the region with better quality, and secondary hydrocarbon is possible; The bearing system which is comparted by three large tectonic layers and two unconformity surfaces formed in Palaeozoic、upper Palaeozoic to Triassic and Cenozoic developing in the region, compounded with reservoirs of different lithology is developed in the region, while the property of tectonic fracture reservoir is better; Based on the analyzing petroleum accumulation elements and preserving conditions, the deep depressing belt in the north of Luoyang depression、Shiling-Yiyang folded fault belt in Yiyang depression and wide anticline belt in Yichuan depression are advantageous petroliferous region, Zhaizhen anticline in Luoyang depression and Shimen wide anticline on footwall of overthrust in Yichuan depression are optimum tectonic traps.
本文以板块构造理论为指导思想,采用露头区野外地质与盆地地震、钻井、测井资料密切结合,多种测试方法互检的研究方法,探讨了盆山耦合关系及其所控制的地球动力学系统;分析了研究区域和盆地地质结构构造特征,确定了中生代盆地的叠合改造性质,并重新划分区域构造单元和盆地构造单元,深入研究了洛阳—伊川盆地自中生代以来的构造演化;确定了成盆作用和构造改造作用的四大构造层和五期不同方式、方向的构造演化过程;建立了不同构造阶段的构造组合和样式及与构造相关的沉积充填过程;在此基础上通过多种有机地球化学指标,研究盆地中新生代油气地质特征,认为本区发育下二叠统区域主力烃源岩、上三叠统区域非主力烃源岩,两套烃源岩质量均较好,并具备二次生烃条件;认为本区发育古生界、上古生界—三叠系和新生界三大构造层、两个不整合界面分隔、不同岩性储集层叠置组合和构造裂隙型储集层的复式储集体系,其中构造裂隙型储集层储集性能较好;依据油气成藏条件和保存条件分析,认为洛阳凹陷北部深凹带、宜阳凹陷内石陵—宜阳褶断带以及伊川凹陷伊川宽阔背斜带为较有利含油气区,有利的构造圈闭是洛阳凹陷翟镇背斜和伊川凹陷的石门逆冲断层下盘的宽缓背斜
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Increase of that clast of sedimentary rock, high-grade metamorphic rock and unstable heavy minerals shows tectonically active setting and obvious uplift of Bogda Mountain during the Late Jur.
新疆博格达地区中—新生界碎屑成分自中侏罗世的中晚期开始发生了巨大变化,主要表现在:自中侏罗世晚期开始,沉积重矿物组合及相对含量发生较大变化,不稳定重矿物、较高级别变质岩岩屑明显增多,显示此时发生的物源属性变化及构造活动的存在;自侏罗系西山窑组沉积晚期开始,砂岩碎屑成分中的沉积岩碎屑明显增加,显示盆缘沉积岩物源的隆升和剥蚀作用。
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Lithologic character of Eogene syste is interbedded sandstone and mudstone primarily, including the thin layer oil shale, Neocene- Quaternary system is set of rivers deposits. Based on this, through the reaserch of ateral correlation and distribution characteristics of every structural layers show that: Paleozoic synthem overall thickness of relatively stable.The residual thickness of Mesozoic synthem is difference in the horizontal, Residues in the horizontal thickness of greater difference, to the greatest thickness achieve to 4500m. Eogene syste has obviously fault depression basin deposition characteristic, the thickness of many sags achieve to 3000 m ,from Neocene, the stratum crosswise mop tended to be stable.
在此基础上,通过对各构造层横向对比以及展布特征的研究表明,古生界构造层整体厚度相对稳定,冷武-奥陶系残留厚度在1200m左右,石炭-二叠系残留厚度在800m左右;中生界构造层残留厚度在横向上差异较大,最大厚度达到4500m,其中,下-中三叠统仅发育于南部小部分地区,最大厚度在1000m以上,侏罗系-下白垩统整体具有南厚北薄的展布特征,南部冠北洼陷厚度最大,达到3500m;新生界古近系具明显的断陷式盆地沉积特征,多个洼陷厚度在3000m以上,新近纪以后地层横向展布趋于稳定。
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Areas with relatively stable tectonic settings and well preservation conditions,such as Sichuan basin,are characterized by multiple sources,early accumulation,oil-gas conversion,and late finalization;the Middle and Lower Yangtze areas overlain by Mesozoic and Cenozoic strata are characterized by secondary hydrocarbon generation and late re-(servoiring;) while the areas with outcropping carbonates,such as western Hunan and Hubei and Yunnan-Guangxi-Guizhou regions,are characterized by early hydrocarbon generation and late destruction and reformation.
以四川盆地为代表的构造相对稳定、保存条件好的地区,具有多源供烃、早期聚集、油气转化、晚期定型的特点;中、下扬子中、新生界覆盖区,具有二次生烃、晚期成藏的特点;湘鄂西、滇黔桂等碳酸盐岩裸露区,则表现为早期生烃、后期破坏改造的特点。
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So the elevating and plunging between these three anticlinal belts imply the displacement transfer in the southnorth direction. The deep structures of the second and third rows of antclinal belts in the Southern Junggar Basin are composed of several imbricate hinge wedgeshaped fault blocks, which usually have small lateral extension, but may have independent reservoir system and different hydrocarbongaswater characteristics.
准噶尔盆地南缘第二、三排背斜带中-新生界内部发育多个小型的构造楔形体,这些互相叠置的楔形构造横向延伸不大,但有可能构成独立的成藏系统,具有不同的油气水特征,从而造成同一个背斜带不同部位的含油气性迥异。
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Due to the thick loose level of the downcast shaft Cenozoic group,the large depth of grouting,the requirement of high quality,the time limit for the project in the construction of the Southern Field of Guqiao Coal Mine,the straight hole and the S drilling hole were tied in wedlock each other to carry out the grouting technology,and got fine effects.
针对顾桥煤矿南区进风井井筒新生界松散层厚,注浆深度深、质量要求高、工期紧等特点,采用直孔与S型钻孔相结合的注浆施工技术,取得了良好的效果。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。