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From the Late Carboniferous to the Permian, Junggar region into the post-collision tectonic evolution stage, in the stage of the post-collision, the early subduction slab rupture and separate, asthenosphere decompression melting, basalt magma take place underplating, because the underplating of the basalt magma, low crust melt by the high temperature forming the acid crust-magma, the basic magma from mantle and acid one from crust mixing at the vicinity of the crust-mantle boundary, formed the Huangyangshan magma mixing plution, the dioritic microgranular enclaves are the recorder of the crust and mantal magma mixing process.

从晚石炭世到二叠纪,准噶尔地区进入后碰撞构造演化阶段,在后碰撞构造阶段,早期的俯冲板片断离,软流圈减压熔融,玄武质岩浆底侵至下地壳底部,底侵基性岩浆带来的巨大热量,导致地壳物质熔融,形成大规模的花岗质岩浆,两种岩浆在壳-幔边界附近发生不同程度的混合,其中闪长质微细粒包体就是基性的幔源岩浆和酸性的壳源岩浆不同程度的混合的记录者。

The peak metamorphic minerals are garnet, omphacite,phengite and rutile with temperature of~500℃,pressure of~2.3Gpa.On the basis of geochemical analysis,the content of SiO2 in the eclogite ranges from 46.68%to 50.24%,Na2O+K2O 3.10~4.21%,and high REE with enriched LREE, LREE/HREE of 2.83~6.06.The REE pattern and trace element spidergram are similar with those of ocean island basalt,according with the blueschist from Longmucuo -Shuanghu suture zone.The protolith of the eclogite and blueschist are OIB,and they aremaybe the result of subduction of Permian OIB in central Qiangtang area.

对棉辉岩的地球化学分析显示,榴辉岩SiO_2含量在46.68—50.24%之间,Na_2O+K_2O含量在3.10—4.21%之间,稀土元素总量较高,轻稀土富集,重稀土相对亏损,LREE/HREE比值在2.83—6.06之间,稀土元素球粒陨石标准化曲线呈向右倾斜的样式,微量元素原始地幔标准化蛛网图OIB类似,这些特征和龙木错—双湖高压变质带的蓝片岩类似,它们的原岩为均为洋岛型玄武岩,形成环境类似于现在太平洋中的夏威夷,榴辉岩、蓝片岩很可能是羌塘中部地区出露的二叠纪洋岛型岩石俯冲消减的产物。

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。

Results The diagenetic grade of Permian rift basin was quite high, and the mechanical compaction resulted in the great loss of the original pore. The eodiagenesis and telodiagenesis were important to the reservoir, and fractures were the dominant hydrocarbon migrating pathway and accumulating space; In Triassic-Paleogene Formation, mechanical compaction was as important as pressolution, and the most original pore was preserved. The exodiagenesis stage of late hercynian movement, indosinian movement and Yanshan movement played the vital role in the diagenetic evolution and hydrocarbon migration and accumulation of the basin. The argillaceous dolomite and algal dolomite discaved in Permian, which were formed probably by hybrid process in high salinity lake which had the fresh water interfused in.

结果 二叠纪裂谷盆地的成岩强度大,以机械压实作用为主,原生孔隙丧失多且早,晚期成岩作用较重要,裂缝是油气运聚的通道和空间,可出现次生孔隙发育带;三叠纪-古近纪拗陷盆地的成岩作用表现为机械压实和化学压实作用并重,原生孔隙多被保留;晚海西、印支、燕山运动等表生成岩阶段对该区的成岩演化和油气运聚起到重要作用;二叠系中特征的泥云岩和藻云岩可能是在有淡水注入的较高盐度湖泊中经混合作用而形成的。

Mandula area is situated in junction belt between Siberia and North China plates in Damaoqi, Inner Mongolia 1∶50000 regional investigation can recognize many traces of plate action recently years Such as tectonic melange belts, ocean crust remant fragments, island are volcanic and are-rear basin sedimont act They recorded a whole precess or plate action the area from extension, convergence to collision act from Carboniferous to Permian period This result has offered rich, reliable of geological info...

内蒙古达茂旗满都拉地区位于西伯利亚板块和华北板块的接合带。近年来的1∶ 5万区调识别出本区存在着诸多板块活动遗迹,如构造混杂带、洋壳残片、岛弧火山岩、弧后盆地沉积等,记录了在石炭纪至二叠纪这段地质时期内本区从拉张、收敛到碰撞等板块活动的全过程。这一成果,为研究内蒙古北部地槽区的板块活动历史提供了丰富而可靠的地质资料

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?