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| 1 | Tectonic implications of Late Paleozoic stratigraphic distribution in Northeast China and adjacent region显示文摘An analysis of the distribution of the Late Paleozoic strata on Northeast China and adjacent region reveals a zonal pattern of the distribution around the core of the Jiamusi-Mongolia Block.The main part of Late Paleozoic marine strata in this area is considered the continental margin deposits of the Jia-musi-Mongolia Block by analyzing the stratigraphic contact relationship,lithofacies,etc.The results are exhibited in a series of tectonic paleogeographic maps.This presents an important proof for the foundation of the Jiamusi-Mongolia Block,and confines the forming time of Jiamusi-Mongolia Block to the Late Silurian. | ChengWen Wang YueWu Sun Ning Li GuoWei Zhao XiaoQin Ma | 2009 | Science China Earth Sciences2009,52,5: | 36 |
| 2 | 西昆仑-塔西南坳陷晚古生代以来的沉积构造演化显示文摘自柯克亚深层油气勘探取得突破以来,塔西南坳陷一直受到各类地质学家的广泛关注,有关该盆地的形成和演化历史及其油气资源评价近年来更是成为人们的研究热点。本文在总结前人资料的基础上,探讨塔西南和西昆仑地区自晚古生代以来所经历的构造及沉积格架的演变过程,对塔西南坳陷性质及其演化阶段划分所存在的争议进行了归纳,分析了塔西南-西昆仑这一盆山体系形成和演化中的构造变形和沉积记录。总体来说,根据现有沉积和构造变形资料,中生代之前西昆仑和塔西南坳陷分别处于同一构造背景下的不同沉积单元;二者之间盆山体系的形成主要自晚侏罗世-早白垩世,中-上新世是造盆造山作用机制发生重大转折的时期,或者说早更新世末的构造运动基本上奠定了西昆仑-塔里木盆地南缘现今的盆-山构造格架。 | 方爱民 马建英 王世刚 赵越 胡健民 | 2009 | 岩石学报2009,25,12: | 40 |
| 3 | STRATA应力吸收层抗疲劳特性研究显示文摘通过柔性道面足尺试验对旧水泥混凝土路面上 3种不同加铺层结构进行了裂缝开展的温度疲劳特性研究。结果表明 ,旧水泥混凝土路面 + STRATA应力吸收层 +沥青混凝土的路面结构形式具有优良的抗温度疲劳反射裂缝的能力。 | 廖卫东 陈拴发 刘云全 | 2003 | 武汉理工大学学报2003,25,12: | 34 |
| 4 | STRATA应力吸收层对加铺层荷载及温度应力的影响分析显示文摘STRATA应力吸收层是一种用于防止沥青加铺层反射裂缝的新型沥青混合料,它采用特殊聚合物对沥青进行改性,具有高弹性、不透水及抗裂性能好的优点。采用三维有限元法对设置DTRATA应力吸收层的标准加铺层结构与另两种未设置STRATA应力吸收层的对比加铺层结构进行应力分析,计算结果表明:在旧水泥混凝土路面与沥青加铺层之间设置STRATA应力吸收层后,加铺层结构的荷载应力与温度应力均有较大幅度的降低。 | 杨斌 陈拴发 廖卫东 胡长顺 | 2005 | 公路交通科技2005,22,9: | 30 |
| 5 | GEOCHEMICALLY CONTROLLED CALCITE PRECIPITATION BY CO_2-OUTGASSING: FIELD MEASUREMENTS OF PRECIPITATION RATES IN COMPARISON TO THEORETICAL PREDICTIONS显示文摘A small spring fed stream precipitates calcite by outgassing of CO2 due to chemically controlled inorganic processes. The chemical composition of the water was measured along 9 stations downstream with respect to Ca2+, Mg2+, Na+,K+, Cl-, carbonate alkalinlty, and SO42-. Temperature and pH were measured in situ. Small rectangular shaped tablets of limestone from the area were immersed into the stream for short periods and water analyses were carried out at the same time. From weight increase of the tablets, precipitation rates | W.Dreybrodt D.Buhmann J.Michaelis E.Usdowski | 1992 | 中国岩溶1992,11,S1: | 21 |
| 6 | Medusoid Fossils from the Sinian Xingmincun Formation of Southern Liaoning Province显示文摘Abundant medusoid soft-bodied metazoan fossils have been found in the Sinian Xingmincun Formation(with an isotopic age of 650 Ma) at Qipanmo, Qidingshan and Yangtun of the Dalian-Jinzhou area, southern Liaoning Province; in addition, a number of macroscopic algal fossils have been discovered for the first time in the Getun Formation overlying the Xingmincun Formation. Medusoid fossils include 3 genera and 6 species(all of which are new). Judging from their biological characters, these medusoid fossils are considered to have an intimate affinity with the Ediacara fauna in the terminal Precambrian of Australia, as their characters are close to each other. The authors suggest that these medusoids and the Edicara fauna might be the products of the same period. The discovery of the medusoid fauna in the Xingmincun Formation marks an important event in the evolution of the terminal Precambrian organisms in China, and it is of major practical significance in the study of the Sinian System of China and the correlation of the Sinian strata of northern and southern China. | Hong Zuomin, Huang Zhenfu, Yang Xinde, Lan Jing, Xian Bingcai, Yang Yajun, Regional Geological Survey Party, Bureau of Geology and Mineral Resources of Liaoning Province, Jinzhou, Liaoning and Liu Xiaoliang Shenyang Institute of Geology and Resources, Chinese Academy of Geological Sciences, Shenyang, Liaoning Fang Xinzhong | 1989 | Acta Geologica Sinica(English Edition)1989,63,1: | 20 |
| 7 | STRATA反射裂缝应力吸收层施工技术显示文摘武黄高速公路路面改造工程中 ,在总结 2 0 0 1年试验路所取得成功经验的基础上 ,首次大面积应用了STRATA系统 ,由于它具有粘弹性高、抗疲劳抗塑性变形能力强、密实、不透水等特点 ,能有效减少或缓解旧水泥砼板传递给沥青面层的反射裂缝 ,并能提高沥青路面的抗水害能力 。 | 张忠岐 吴江龙 狄谨 | 2003 | 武汉理工大学学报2003,25,12: | 16 |
| 8 | Application of radiolarians and other fossils in non-Smith strata——Exemplified by the A'nyemaqen melange belt in East Kunlun Mts.显示文摘The main character of melange strata in an erogenic belt is the integration of mixed materials due to the superposition, displacement or loss of various tectonic slices (blocks) of different origins and environments, different scales, different grades of deformation and metamor-phism, and different stages of tectonic evolution. The approach to non-Smith strata in an erogenic belt is to focus on the understanding of the age, facies, tectonic setting of the original formation and the process of deformation-metamorphism of each tectonic slice, reconstruct the history of dispersal and integration of these tectonic slices in time and space, i.e. 4-dimensional. This paper studies the age and facies of the original formation of tectonic slices in the A’nyemaqen melange belt based on new data of radiolarians, sporo-pollen and trace fossils, and cast new lights on the research of the evolution process of that belt. | 张克信 黄继春 殷鸿福 王国灿 王永标 冯庆来 田军 | 2000 | Science China Earth Sciences2000,43,4: | 13 |
| 9 | Formation mechanism of carbonate cemented zones adjacent to the top overpressured surface in the central Junggar Basin,NW China显示文摘Carbonate cemented zones are normally adjacent to the top overpressured surface in the central Junggar Basin,NW China.Stable carbon and oxygen isotopic compositions and petrological investigations of carbonate cements in the carbonate cemented zones indicate that:(1) carbonate cements are composed dominantly of ferrocalcite,ferroan dolomite,and ankerite;(2) carbonate cements are formed under a high temperature circumstance in the subsurface,and organic fluid migration has an important effect on the formation of them;and(3) carbon and oxygen ions in the carbonate cements migrate from the underlying overpressured system.This suggests that the occurrence of carbonate cemented zones in this region results from multiple phases of organic fluid expulsion out of the overpressure compartment through geological time.This study provides a plausible mechanism of the formation of carbonate cemented zones adjacent to the top overpressured surface in the clastic sedimentary basins,and has an important implication for understanding the internal correlation between the formation of carbonate cemented zones adjacent to top overpressured surface and geofluids expulsion out of overpressured system. | YANG Zhi1,2,ZOU CaiNeng1,3,HE Sheng2,LI QiYan1,HE ZhiLiang3,WU HengZhi5,CAO Feng1,MENG XianLong4,WANG FuRong2 & XIAO Qilin21 State Key Laboratory of EOR,Research Institute of Petroleum Exploration & Development,PetroChina,Beijing 100083,China 2 Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education,China University of Geosciences,Wuhan 430074,China 3 State Key Laboratory of EOR,Research Institute of Petroleum Exploration & Development,Petrochina,Beijing 100083,China 4 Research Institute of Petroleum Exploration and Production,SINOPEC,Beijing 100083,China 5 Southwest Branch Company,SINOPEC,Chengdu 610051,China | 2010 | Science China Earth Sciences2010,53,4: | 12 |
| 10 | Mechanism of rock burst caused by fracture of key strata during irregular working face mining and its prevention methods显示文摘To study the occurrence mechanism of rock burst during mining the irregular working face,the study took irregular panel 7447 near fault tectonic as an engineering background.The spatial fracture characteristic of overlying strata was analyzed by Winkler elastic foundation beam theory.Furthermore,the influence law of panel width to suspended width and limit breaking span of key strata were also analyzed by thin plate theory.Through micro-seismic monitoring,theoretical analysis,numerical simulation and working resistance of support of field measurement,this study investigated the fracture characteristic of overlying strata and mechanism of rock burst in irregular working face.The results show that the fracture characteristic of overlying strata shows a spatial trapezoid structure,with the main roof being as an undersurface.The fracture form changes from vertical‘‘O-X'type to transverse‘‘O-X'type with the increase of trapezoidal height.From the narrow mining face to the wide mining face,the suspended width of key strata is greater than its limit breaking width,and a strong dynamic load is produced by the fracture of key strata.The numerical simulation and micro-seismic monitoring results show that the initial fracture position of key strata is close to tailgate 7447.Also there is a high static load caused by fault tectonic.The dynamic and static combined load induce rock burst.Accordingly,a cooperative control technology was proposed,which can weaken dynamic load by hard roof directional hydraulic fracture and enhance surrounding rock by supporting system. | Zengqiang Yang Chang Liu Hengzhong Zhu Fuxing Xie Linming Dou Jianhang Chen | 2019 | International Journal of Mining Science and Technology2019,29,6: | 12 |
| 11 | Discovery of Triassic volcanic-sedimentary strata in the basement of Songliao Basin显示文摘In the Songliao Basin, the existence of lower Mesozoic strata remains a debatable issue. Previous studies indicated the absence of Triassic to Lower and Middle Jurassic strata in northeastern China because of uplift and erosion events associated with the return of geo-synclinal folds and orogenic movement during the Late Permian-Early Jurassic. To date, geochronological studies of intrusive and metamorphic rocks in the basement of the Songliao Basin have also confirmed Carboniferous, Permian, and Late Jurassic ages for the basement formations in general [1-4]. In the International Continental Scientific Drilling Project (ICDP) in the Songliao Basin, radiometric dating has been carried out for the entire drilling core of the SK-2 east borehole. As a result, we have discovered Triassic volcanic-sedimentary strata in the basement of the Songliao Basin. | Yongkang Yin Youfeng Gao Pujun Wang Xuejiao Qu Haibo Liu | 2019 | Science Bulletin2019,64,10: | 11 |
| 12 | Mining-induced movement properties and fissure time-space evolution law in overlying strata显示文摘Mining-induced fracture zone will be produced in the overlying strata after the coal was mined.In this article,the mining-induced deformation of overlying strata and the time-space evolution law of fissure were studied by the methods of physical simulation and field measurement.The results show that bed separation fissure and vertical fissure will appear in the overlying strata above mining face,which form the wedge-shaped fissure zone.The open degree of fissure depends on the size of uncoordinated deformation between neighbor layers,and the absolute strata sinking controls both the width of bed separation zone and the open degree of vertical breakage fissure.At last,the calculating formula was deducted based on theoretical analysis. | Xu Xingliang Zhang Nong Tian Suchuan | 2012 | International Journal of Mining Science and Technology2012,22,6: | 10 |
| 13 | Lithofacies paleogeography mapping and reservoir prediction in tight sandstone strata: A case study from central Sichuan Basin, China显示文摘Sand-rich tight sandstone reservoirs are potential areas for oil and gas exploration. However, the high ratio of sandstone thickness to that of the strata in the formation poses many challenges and uncertainties to traditional lithofacies paleogeography mapping. Therefore, the prediction of reservoir sweet spots has remained problematic in the field of petroleum exploration. This study provides new insight into resolving this problem, based on the analyses of depositional characteristics of a typical modern sand-rich formation in a shallow braided river delta of the central Sichuan Basin, China. The varieties of sand-rich strata in the braided river delta environment include primary braided channels,secondary distributary channels and the distribution of sediments is controlled by the successive superposed strata deposited in paleogeomorphic valleys. The primary distributary channels have stronger hydrodynamic forces with higher proportions of coarse sand deposits than the secondary distributary channels. Therefore, lithofacies paleogeography mapping is controlled by the geomorphology, valley locations, and the migration of channels. We reconstructed the paleogeomorphology and valley systems that existed prior to the deposition of the Xujiahe Formation. Following this, rock-electro identification model for coarse skeletal sand bodies was constructed based on coring data. The results suggest that skeletal sand bodies in primary distributary channels occur mainly in the valleys and low-lying areas,whereas secondary distributary channels and fine deposits generally occur in the highland areas. The thickness distribution of skeletal sand bodies and lithofacies paleogeography map indicate a positive correlation in primary distributary channels and reservoir thickness. A significant correlation exists between different sedimentary facies and petrophysical properties. In addition, the degree of reservoir development in different sedimentary facies indicates that the mapping method reliably predicts the distribution of sweet spots. The application and understanding of the mapping method provide a reference for exploring tight sandstone reservoirs on a regional basis. | Yuan Zhong Lu Zhou Xiucheng Tan Chengbo Lian Hong Liu Jijia Liao Guang Hu Mingjie Liu Jian Cao | 2017 | Geoscience Frontiers2017,8,5: | 9 |
| 14 | PRELIMINARY STUDIES ON THE PALEOSUTURE BETWEEN SIBERIAN PLATE AND SINO-KOREAN PLATE IN EASTERN NEI MONGOL显示文摘Linxi area between Siberian plate and Sino-Korean plate, located in the eastern part of Nei Mongol, is one of the most important regions for studying the paleo-suture between the plates. Up to now, there are two basically different viewpoints on the paleo-suture situation. Some geologists consider that the suture is situated oa the Xar Moron fault belt (almost in accord with the Xar Moron river valley); the others claim that the suture might be locat- | 李锦轶 | 1987 | Chinese Science Bulletin1987,32,23: | 8 |
| 15 | 抗反射裂缝技术在三峡坝区主干道改造中的应用显示文摘采用合理的抗反射技术措施是旧水泥混凝土路面加铺沥青面层成败的关键。三峡水利枢纽坝区主干道水泥路面主要存在裂缝、断板、脱空等病害,采用老路病害处理后加沥青罩面方式进行改造,施工过程中采用抗裂贴、应力吸收层(Strata)等一系列的施工工艺,有效缓解反射裂缝的产生。工程完工后的抽检数据表明:沥青路面的质量良好。 | 陈星 晏元湘 邓朝 明磊 | 2012 | 中外公路2012,32,6: | 7 |
| 16 | Hydrocarbon Geological Conditions and Exploration Potential of Mesozoic–Paleozoic Marine Strata in the South Yellow Sea Basin显示文摘No substantial breakthroughs have been made in hydrocarbon exploration of the South Yellow Sea Basin.It is believed that the Mesozoic-Paleozoic marine sedimentary formation in the South Yellow Sea Basin is similar to that in the Sichuan Basin.Therefore,outcrop,drilling,and seismic data were determined and compared with the research results on petroleum geological conditions in the Yangtze land area,and the hydrocarbon geological conditions were analyzed comprehensively from multiple aspects,such as basin evolution and main source rocks,reservoir characteristics,preservation conditions,and structural traps.The results show that two main stages in the South Yellow Sea Basin(the stable evolution stage of the Mesozoic-Paleozoic marine basin and the Mesozoic-Cenozoic tectonic reformation and basin formation stage)were important for the development and evolution of four sets of main source rocks.Reservoirs dominated by carbonate rocks,three sets of capping beds with good sealing capability,relatively weak magmatic activity,and multiple types of structural traps jointly constituted relatively good hydrocarbon-reservoir-forming conditions.There were four sets of main source-reservoir-cap assemblages and three possible hydrocarbon reservoir types(primary residual-type hydrocarbon reservoir,shallow reformed-type hydrocarbon reservoir,and composite-type hydrocarbon reservoir)developed in the marine strata.It is concluded that the marine strata in the South Yellow Sea Basin have relatively good hydrocarbon potential.The Laoshan Uplift is characterized by stable structure,complete preserved source reservoir cap assemblage,and large structural traps,and thus it is the preferred prospect zone for marine Paleozoic hydrocarbon exploration in this area. | YUAN Yong CHEN Jianwen LIANG Jie XU Ming LEI Baohua ZHANG Yuxi CHENG Qingsong WANG Jianqiang | 2019 | Journal of Ocean University of China2019,18,6: | 7 |
| 17 | Fundamental principles of an effective reinforcing roof bolting strategy in horizontally layered roof strata and areas of potential improvement显示文摘It is arguable that the development of reinforcing roof bolting systems has largely stagnated in recent times, primarily due to the prevailing industry view that few, if any, further improvements can be made to what currently exists.However, this paper contends that reinforcing roof bolting systems can be further refined by considering both the specific manner by which horizontally bedded roof strata loses its natural self-supporting ability and the specific means by which reinforcing roof bolts act to promote or retain this natural self-supporting ability.The Australian coal industry has insisted on minimising bolt-hole diameter to maximise load transfer and on targeting full-encapsulation by any means necessary for many years.This has led to a significant, albeit unintended, consequence in terms of overall roof bolting effectiveness, namely increased resin pressures during bolt installation and the associated potential for opening bedding planes that may have, otherwise, remained closed during the bolt installation process.Given that the natural self-supporting ability of roof strata is strongly linked to whether bedding planes are open or closed, logically, minimising resin pressures should be a significant benefit.This paper focuses primarily on three key issues that relate directly to the function of the roof bolting system itself:(1) the importance of proper resin mixing in the context of maximising load transfer strength and stiffness,(2) the importance of minimising resin pressures developed during bolt installation, and(3) the importance of maximising the effectiveness of the available bolt pre-tension.All mine operators should be invested in improving the individual effectiveness of each installed roof bolt, even by relatively small incremental amounts, so this is an important topic for discussion within the mining community. | Russell Frith Guy Reed Martin McKinnon | 2018 | International Journal of Mining Science and Technology2018,28,1: | 7 |
| 18 | Behaviors of overlying strata in extra-thick coal seams using top-coalcaving method显示文摘Accidents such as support failure and excessive deformation of roadways due to drastic changes in strata behaviors are frequently reported when mining the extra-thick coal seams Nos.3e5 in Datong coal mine with top-coal caving method,which significantly hampers the mine's normal production.To understand the mechanism of strata failure,this paper presented a structure evolution model with respect to strata behaviors.Then the behaviors of strata overlying the extra-thick coal seams were studied with the combined method of theoretical analysis,physical simulation,and field measurement.The results show that the key strata,which are usually thick-hard strata,play an important role in overlying movement and may influence the mining-induced strata behaviors in the working face using top-coal caving method.The structural model of far-field key strata presents a 'masonry beam' type structure when'horizontal O-X' breakage type happens.The rotational motion of the block imposed radial compressive stress on the surrounding rock mass of the roadway.This can induce excessive deformation of roadway near the goaf.Besides,this paper proposed a pre-control technology for the hard roof based on fracture holes and underground roof pre-splitting.It could effectively reduce stress concentration and release the accumulated energy of the strata,when mining underground coal resources with top-coal caving method. | Bin Yu | 2016 | Journal of Rock Mechanics and Geotechnical Engineering2016,8,2: | 6 |
| 19 | STRATA技术在路面防反射裂缝中的应用研究显示文摘针对引进不久的STRATA技术,结合汉(武汉)宜(宜昌)高速公路沥青加铺工程,从旧水泥混凝土路面的综合处治、STRATA应力吸收层的混合料设计、施工工艺、施工中日常检测几个方面对STRATA技术的应用进行了全面研究,并肯定了其在水泥混凝土路面加铺沥青混凝土面层时的防反射裂缝作用。 | 田加亨 苏华友 佘艳华 黄贤辉 | 2006 | 筑路机械与施工机械化2006,23,9: | 5 |
| 20 | Types, Metallogenic Environments and Characteristics of Temporal and Spatial Distribution of Copper Deposits in China显示文摘Based upon a comprehensive study of 123 copper deposits in China. this paper reaches the following conclusions: 1. The crust in China was solidified pretty late; with the accretion of the plate, the copper mineralization moved towards its margin in space and became successively younger in age. 2. The major copper ore types ever found in the world have mostly been discovered in China, in which the porphyry type seems to be the most important and the massive sulfide type in the transitional bed between marine clastic and carbonate rocks is clearly defined. 3. Carbonate strata are widespread in China and their deposition lasted for a long geological period, so the proportion of copper deposits occurring in them is large as compared with other parts of the world. 4. Seven metallogenic epochs can be recognized, in which the Mesozoic one plays the leading role and the middle(late) Palaeozoic and Cenozoic ones are next in importance. Mineralization was comparatively simple in the early geological period. and became diversified later on. In the early epochs copper deposits related to basaltic magmatism and metamorphosed marine sediments predominated, whereas in the later epochs those related to granitic magmatism and continental sedimentation were dominant. 5. There exist in China thirteen metallogenic provinces, of which the Lower Yangtze downwarping belt, Sanjiang fold system, Jiangnan axis and Xikang-Yunnan axis are of greater significance. 6. The crustal mobility in China was rather pronounced, the polycyclic evolution of the crust has resulted in such obvious phenomena as the inheritance of mineralization, the coexistence of various types and the superposition of different genetic types. | Wang Zhitian and Qin Kezhang Beijing Institute of Geology for Mineral Resources, CNNC, Beijing Zhang Zhongmin | 1989 | Acta Geologica Sinica(English Edition)1989,63,1: | 5 |