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Late Cenozoic geological evolution of the foreland basin bordering the West Kunlun range in Pulu area:Constraints on timing of uplift of northern margin of the Tibetan Plateau

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Late Cenozoic geological evolution of the foreland basin bor...

中国科学院地质与地球物理研究所2.03.术年会

作者： Erchie Wang institute of Geology and Geophysics,Chinese Academy of sciences,{2.,{3. Jinglin Wan Laboratory of Neotectonic Chronology of institute of Geology,{3. Seismological Bureau,{2.,{3. Jiaqi Liu institute of Geology and Geophysics,Chinese Academy of sciences,{2.,{3.

With an average elevation of 5000 m the West Kunlun range marks northwestern margin of the Tibetan Plateau and formed as an orogen in response to the collision of India and Asia 50 Ma *** history of uplift and erosion in the late Cenozoic is recorded in a unique sedimentary sequence exposed through the highest terrace along the southern margin of the Tarim basin in Pulu *** terrace is composed of coarse-grain conglomerate at the bottom,alkaline-enriched volcanic rocks in the middle and eolian sediments on the *** underlying basement rocks are formed by Neogene rocks and Paleozoic *** the Xiyu conglomerate,the coarse-grained conglomerate is assigned a depositional age in the late Pliocene and the early Pleistocene(3.4-1.6 ma) and generally considered to be the products of rapid uplift of the Tibetan *** reveal the relations between uplift,erosion,and sedimentation,we have collected samples of granite overlain by the Xiyu conglomerate for dating the fission track age of *** fission track ages date the absolute time of cooling through the track retention temperature of the granite within the West Kunlun range to be Miocene to early Pliocene(2.-4.8 Ma). The cooling event was coeval with the north-verging thrusting along the northern boundary fault and the associated foreland basin deposition,suggesting that the West Kunlun range once underwent significant tectonic uplift in the *** contrast to the underlying Tertiary foreland basin strata,the Xiyu conglomerate thins toward the West Kunlun range and contains granite pebbles of cooling ages of 93.18,and 12.*** study suggests that the primary cause for accumulation of the Xiyu conglomerate and the correspondent sediments is the increase of erosion and sedimentation rates after the main pulse of tectonic uplift due to Quaternary climate *** TERMS:03.5 Atmospheric Composition and Structure:Evolution of the atmosphere

关键词： Tibetan Plateau Cenozoic uplift timing conglomerate climate

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礁灰岩储层渗透率确定方法

石油学报 2003年第5期24卷 67-70,73页

作者：侯连华吴锡令林承焰王庆如岳大力石油大学资源与信息学院北京102249 石油大学山东东营257061 中国海洋石油总公司南海东部研究院广东广州510240

流花 11 1油藏生物礁灰岩的储层储集空间以孔隙型和溶洞—微裂缝—孔隙型为主 ,孔隙结构呈双峰分布。采用岩心渗透率对测井和地震渗透率逐级刻度的方法 ,确定了 5m× 5m三维地震分布范围的孔隙渗透率。然后利用反映地下储层的动态测试... 详细信息

流花 11 1油藏生物礁灰岩的储层储集空间以孔隙型和溶洞—微裂缝—孔隙型为主 ,孔隙结构呈双峰分布。采用岩心渗透率对测井和地震渗透率逐级刻度的方法 ,确定了 5m× 5m三维地震分布范围的孔隙渗透率。然后利用反映地下储层的动态测试渗透率刻度地震孔隙渗透率 ,得到非单重介质渗透率 ,从而得到了既具有地震资料广泛分布特点又具有准确体现地下储层流体渗流特征的非单重介质渗透率地质模型。生产动态分析和油藏数值模拟证实非单重介质渗透率比孔隙渗透率能够更好地反映地下储层流体的渗流特征 ,在油田开发和剩余油分布研究中应用效果更好。

关键词：流花11-1油田生物礁灰岩储层流体渗流特征孔隙渗透率非单重介质渗透率地质模型

南方中-古生界油气勘探的若干地质问题及对策

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石油与天然气地质 2002年第3期23卷 244-247页

作者：郭彤楼田海芹同济大学中国石化石油勘探开发研究院北京100083

中国南方海相盆地经历了多旋回运动的叠加改造 ,导致各地区油气保存状况存在较大差异。因此 ,须探索此类盆地独特的油气成藏规律。研究过程中 ,应注重突出重点、以点带面 ,针对不同地区的特点 ,总结出各自的成藏模式。目前 ,南方海相研... 详细信息

中国南方海相盆地经历了多旋回运动的叠加改造 ,导致各地区油气保存状况存在较大差异。因此 ,须探索此类盆地独特的油气成藏规律。研究过程中 ,应注重突出重点、以点带面 ,针对不同地区的特点 ,总结出各自的成藏模式。目前 ,南方海相研究应重点放在重点区块构造评价、烃源岩重新确定和保存条件再评价等方面。通过解剖典型油气藏的成藏条件 ,了解成藏要素的有利匹配 ,优选出近期的勘探目标。

关键词：油气勘探多旋回盆地叠加改造油气保存中古生界中国南方海相盆地

Late Mesozoic-Cenozoic dcollement structure and its deep geological background in western Shandong,china

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Progress in Natural Science:Materials International 2009年第5期19卷 603-613页

作者： Li Li a, Dalai Zhong b, Xiupeng Shi a, Zibo Tang a, Qiuyuan Hu a, Yi Xu b, Zhiwei Li ba institute of Earth resource and Information,{2. University of Petroleum, Shandong 2.7061,{2. b institute of Geology and Geophysics, Chinese Academy of sciences, beijing 10002.,{2.

Data from seismic reflection profiles, drilling, stratigraphy, structural deformation studies and physical rock properties reveal the existence of dcol1ement structures in both shallow and deep levels in western Shandong, china. The most outstanding shallow dcol1ement structures occur along the regional unconformity surface between the Cambrian and Archean, and the disconformity surface between the Carboniferous and Ordovician. The dcollement structure surface manifests as a fault zone with cataclastic rocks and asymmetrical folds. Some of the cataclastic rocks underwent dynamic metamorphism and hydrothermal alteration, including silicification, marbleization and specularite mineralization. Above the dcol1ement structure, the bottom of the Cambrian might be missing or overprinted because of dcollement. The striations, asymmetrical folds and boudinage structures indicate the direction of the main dcollement to the NNW and NNE. A deep level dcollement structure occurs at a depth of 12.2. km and up to 3. km distance to the south. The early Cretaceous and Eocene are two main periods of activity, with the Cretaceous dcollement probably initiated by mantle upwelling derived from subduction and collision of the Yangtze Plate with the North china Plate along the Tancheng-Lujiang Fault in the late Triassi-early Jurassic. This circumstance implies a multidirection of subduction and collision of these two plates in the early late Mesozoic.

关键词： Dcollement structure Late Mesozoic-Cenozoic Western Shandong Tancheng-Lujiang fault

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从历史看潼关高程变化

水力发电学报 2003年第3期22卷 40-49页

作者：周建军林秉南清华大学水利系北京100084 中国水科院国际泥沙研究中心北京100044

渭河在潼关流入黄河。历史上 ,潼关上、下河道受地质构造的控制 ,河槽沉降导致大量淤积。在三门峡建库前的一个短期内 ,由于水沙条件变化 ,潼关和渭河有较大的抬高。但渭河下游一直为地中河 ,说明迄今淤积还没有导致潼关高程长期大量抬... 详细信息

渭河在潼关流入黄河。历史上 ,潼关上、下河道受地质构造的控制 ,河槽沉降导致大量淤积。在三门峡建库前的一个短期内 ,由于水沙条件变化 ,潼关和渭河有较大的抬高。但渭河下游一直为地中河 ,说明迄今淤积还没有导致潼关高程长期大量抬高。小北干流的淤积和抬高与其河性有关 ,和潼关以下的黄河河道在河流动力学 (河势及水沙条件等 )方面有本质区别。根据小北干流长期淤积抬高而认为潼关高程也会同样淤积抬高、论据似嫌不足。三门峡水库建库后 ,潼关高程大量抬高主要是水库壅水的结果。所以降低三门峡水库的运行水位 ,可为潼关高程的降低创造必要的条件。

关键词：泥沙三门峡水库潼关高程泥沙淤积历史

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中国页岩气形成条件及勘探实践

天然气工业 2011年第12期31卷 26-39,125页

作者：邹才能董大忠杨桦王玉满黄金亮王淑芳付成信中国石油勘探开发研究院北京大学中国地质大学(北京)

中国非常规天然气已实现了致密气、煤层气资源的规模化工业生产,正在寻求实现页岩气资源的有效开发。为此,通过对中国富有机质页岩形成构造背景、地质特征、页岩气形成条件及影响因素的分析,认为中国富有机质页岩时代多、类型丰富、形... 详细信息

中国非常规天然气已实现了致密气、煤层气资源的规模化工业生产,正在寻求实现页岩气资源的有效开发。为此,通过对中国富有机质页岩形成构造背景、地质特征、页岩气形成条件及影响因素的分析,认为中国富有机质页岩时代多、类型丰富、形成环境复杂,不同类型富有机质页岩地质特征与页岩气形成条件差异明显。中国富有机质页岩形成环境有5类:①克拉通边缘半深水—深水陆棚相(扬子地区下古生界);②克拉通边缘沼泽相(华北地区石炭—二叠系);③前陆盆地湖—沼相(四川盆地上三叠统、西部地区三叠—侏罗系);④裂谷盆地断(坳)陷半深—深湖相(渤海湾盆地古近系和新近系、松辽盆地白垩系);⑤大型陆内坳陷盆地深湖相(鄂尔多斯盆地三叠系)。中国页岩气形成条件可归纳为:①富有机质页岩发育具有广泛性;②富有机质页岩展布具有不均衡性;③不同类型页岩成气潜力具有多样性;④页岩储层具有差异性。中国页岩气区带类型可以划归4种类型:热裂解页岩含气区、热成熟页岩含气区、深埋热成熟页岩含气区和生物气—低成熟页岩含气区。中国页岩气勘探实践表明:中国拥有丰富的页岩气资源量,随着理论与技术的突破、经济条件的改善,未来中国页岩气资源有较好发展前景。

关键词：中国页岩气形成条件区带类型成藏条件纳米孔隙勘探实践发展前景

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构造圈闭在柴东天然气成藏中的控制作用

天然气工业 2004年第10期24卷 17-19页

作者：马达德陈新领寇福德李军石油大学.北京中国石油青海油田分公司勘探开发研究院

背斜构造圈闭是天然气藏的主要圈闭类型,在柴达木盆地已找到多个大型生物气田,近几年勘探目标转移到低幅度构造圈闭气藏的勘探上,圈闭有效性的评价成为重点。柴达木生物气成藏过程中具有水溶气藏到纯气藏的发展特征,根据水溶气释放的特... 详细信息

背斜构造圈闭是天然气藏的主要圈闭类型,在柴达木盆地已找到多个大型生物气田,近几年勘探目标转移到低幅度构造圈闭气藏的勘探上,圈闭有效性的评价成为重点。柴达木生物气成藏过程中具有水溶气藏到纯气藏的发展特征,根据水溶气释放的特点和有关模拟实验的结果,结合柴达木盆地东部涩北气田的地质特征进行了不同圈闭幅度构造的储量估算和对比。模拟计算结果表明,除生烃强度外,背斜圈闭的闭合幅度对气藏的储量规模具有明显的控制作用,随闭合幅度减小,储量规模急剧减少。建议勘探新的气藏应立足于在生烃能力强的地区寻找闭合幅度比较大的构造圈闭。同时通过类比和模拟计算可以为储量估算研究提供一种可行的评价方法。

关键词：构造圈闭天然气藏低幅度构造生烃能力柴达木盆地水溶气背斜储量规模天然气成藏圈闭类型

Mechanism of deep cracks in the left bank slope of Jinping first stage hydropower station

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Mechanism of deep cracks in the left bank slope of Jinping f...

Methane-rich fluid evolution of the Baogutu porphyry Cu-Mo-Au deposit,Xinjiang,NW china

中国科学院地质与地球物理研究所2.04学术年会

作者： Qi Shengwen~(a,*),Wu Faquan~a,Yan Fuzhang~a,Lan Hengxing~b a Engineering Geomechanics Laboratory,institute of Geology and Geophysics,Chinese Academy of sciences, P.O.Box 982.,{2. 10002.,PR{3. b LREIS,institute of Geographical sciences and Natural resource Research,Chinese Academy of sciences,{2. 100101,PR{3.

The proposed Jinping first stage hydropower station is located on the middle reach of the Yalongjiang River,Sichuan Province,PR *** consists of a double-curvature arch dam with a maximum height of 3.5 m,which will be the highest in the *** are well developed in the left bank slope of the Pusiluogou,the dam site of Jinping first stage hydropower station. Some cracks are even developed at the horizontal distance into rock face(in this paper,the term"horizontal depth"was used to describe the horizontal distance into face of the slope) beyond 2.0 m,and these cracks are here referred to as deep *** distribution of these deep cracks is far beyond people’s experiences in common unloading zones,so the mechanism of the deep cracks is put forward as a new *** cracks are significant for the stability of the slope,their mechanism becomes one of the key engineering geology problems.A comprehensive study is made in this paper on the distribution characteristics of the cracks as well as their deformation *** factors that influence their distribution and deformation feature are also analyzed by means of geology,mechanics and numerical *** important conclusion is consequently reached that deep cracks occurred as a result of release of high ground stress including gravitational stress and tectonic *** formation of the deep cracks in the slope is a result of unloading process under favorable geology *** crust uplift and quick river cutting and high tectonic stress are indispensable regional geological condition,steep and high geometry condition provides favorable geometry condition,hard at the lower part and soft at the upper part of the slope offers suitable rock combination condition,and back facing bending planes and consequent discontinuities supply suitable structure of the slope.

关键词： Jinping first stage hydropower station Deep cracks Mechanism Unload

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Methane-rich fluid evolution of the Baogutu porphyry Cu-Mo-A...