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The biostratigraphy of this paper is mainly achieved at these two kinds of fossils. The abundance and the diversity of plant fossils are very different across the TPTB stratigraphic set in western Guizhou and eastern Yunnan.

植物化石方面,在研究区两剖面上的界线层组上、下,植物化石的丰度和分异度均存在极大的差异,晚二叠世植物大化石的属种多,化石含量也十分丰富,早三叠世属种单调(或无完整的植物大化石出现),化石含量也极少。

In this deposit, ore bodies exist in the stratoid form and are c ontrolled by thrust faults. The host rocks are limestone in Bolila Formation of Late Triassic Jiezha Group and in Gadikao Formation of Early-Middle Permian Kaix i nling Group, with strong dolomitization and weak silicification. Minerals are ra ther simple and consist of sphalerite, galena, pyrite, calcite, dolomite and barite. The important ore textures are colloforms such as framboid and crust and xenom orphic grains, and the ore structures are in disseminated, brecciated, veinlike and lumpy forms.

东莫扎抓铅锌矿床矿体呈似层状展布,产状严格受到矿区逆冲断层的控制,赋矿围岩为上三叠统结扎群波里拉组灰岩和下-中二叠统开心岭群尕迪考组灰岩,发育强白云石化和弱硅化,矿物组合简单,主要为闪锌矿+方铅矿+黄铁矿+白云石+方解石+重晶石,矿石结构以皮壳状、草莓状等胶状结构和他形粒状结构为主,矿石构造为浸染状、角砾状、团块状和脉状。

Along the low-angle overthrust Early Permian marble and Early Triassic sandy slate were thrust southward over Paleocene-Eocene purplish red conglomerate of the Paleocene-Eocene Fenghuoshan Group and brick-red sandy conglomerate of the Oligocene Yaxicuo Group, forming many klippen of varying scales, and thick fault brecci.

沿低角度逆冲断层,早二叠世大理岩和早三叠世砂板岩自北向南逆冲推覆于古新统—始新统风火山群紫红色砾岩和渐新世砖红色砂砾岩之上,形成大量不同规模的飞来峰;沿主逆冲断层发育厚层断层角砾岩与断层泥,局部形成碳酸盐质糜棱岩。

The paper adopts some methods such as gas composition, carbon isotope, systematical analyzing and testing of reservoir bitumen biomarker from high evolutional natural gas and quantitative calculation of mixed gas, illustrates that natural gas from the section Ⅱ of Jialingjiang formation is mainly attributed to sapropel type organic matter gas of Permian, comes from carbonatite hydrocarbon rocks Permian which most of them are overmature, its main gas source has nothing to do with carbonatite hydrocarbon rocks of Jialingjiang formation themselves, presents in geochemistry characteristics of oil type cracked gas.

摘要通过对川中-川南过渡带西部的磨溪-潼南地区嘉二段天然气组成、碳同位素组成、高演化天然气储层沥青生物标志化合物的系统分析测试和混合成因气的定量估算,阐明了该区嘉二段天然气主要属于二叠系腐泥型有机质成因气,来源于二叠系过成熟为主的碳酸盐岩烃源,主力气源与嘉陵江组自身的碳酸盐岩烃源无关,并具有油型裂解气的地球化学特征。

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。

Based on the early geologic studies, more integrated strata units and frame was established in Yunnan and Guizhou. The characteristic of macroscopical lithofacies and paleogeography was also raveled basically in this area. It was ascertained that some perfect developed PTB sections from marine via paralic to terrestrial facies lie in western Guizhou and eastern Yunnan. What's more, the stratigraphic sequence of Marine PTB or Terrestrial PTB across the PTB in this area is similar to that of the Meishan Section.

通过早期地质研究,在我国云南、贵州地区基本建立了比较完整的地层单位与格架,也基本弄清了该区的宏观岩相古地理特征,明确了黔西滇东地区存在发育完整的从海相—海、陆交互相—陆相的二叠系—三叠系界线剖面,而且该区海、陆相界线地层序列与浙江长兴煤山全球界线层型剖面具有一定的相似特征,使得在该区开展陆相二叠系—三叠系界线剖面的高精度划分和海、陆界线地层的高精度对比均成为可能。

High-quality clastic reservoirs deep-buried in superimposed basin s of China, with many layers and wide distribution, are the importantoil and gas reservoir bodies and exploration targets, which are also key conditions to increase in the exploration effect in seeking for large-scale,high-quality clastic reservoirs in deep superimposed basin s.

我国叠合盆地深层碎屑岩的层系多、分布广,是重要的油气赋存单元和勘探目标,而寻找较大规模的优质碎屑岩储层是提高叠合盆地深层勘探效果的重要前提。

Compound 6 is a sheet of dimmers, in which two Mn ions are bridged by two EO azides and the dimers are linked by the single EE bridges into a sheet.

磁性分析表明配合物6的二维层内单EE叠氮桥和双EO叠氮桥分别传递反铁磁和铁磁相互作用,但整体表现反铁磁相互作用。

Add one layer of phyllo dough to the bottom of the pan.

在用千层派皮。一层一层的叠好。

The Xujiahe formation in south Sichuan basin is featured by continental clastic sedimentary, thin sand mud interbed, and the welldeveloped sandstone in this area, however, its lithology is tight and its physical properties is poor. In the case of gas bearing, the acoustic velocity difference between the sandstone and the shale is too little to make clear responses on seismic data, as a result, it is very difficult to conduct the gasbearing prediction and to analyze the gasbearing range distribution by means of conventional impedance inversion and hydrocarbon detection.

四川盆地蜀南地区上三叠统须家河组为一套砂泥岩互层的陆相碎屑岩沉积,砂岩发育,但岩性致密,物性较差,砂岩储层含气后的速度与页岩速度相差不大,在地震剖面上无明显的响应,因而采用常规波阻抗反演和含气检测技术不能有效解决该类含气储层识别问题和含气范围展布问题。

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