新的化石表明美蝎蛉的早期分异在中侏罗世就已存在。
The new material from China reveals that the early diversification of eomeropids with cockroach-like body was well underway by the Middle Jurassic.
早中侏罗世地层可能为拉配泉断裂之上的伸展盆地沉积。
The Early-Middle Jurassic strata were probably deposited in an extensional basin above the Lapeiquan fault.
本文着重讨论燕山早期主体花岗岩,即中侏罗世三江口序列。
This paper mainly discusses early Yanshanian granites, namely, the Middle Jurassic Sanjiangkou sequence.
晚三迭世的近南北向构造和4)中侏罗世以来的整体掀斜构造。
The north-south structure in upper triassic epoch and, 4) The whole tilting structure after middle jurassic epoch.
早、中侏罗世—早白垩世为拉张盆地,第三纪以来为挤压坳陷盆地。
It was rift basin from Early Middle Jurassic to Early Creaceous and squeezed sag basin since Cenozoic.
早、中侏罗世形成的正断层组合构造样式,可形成一些小规模油气藏。
The structural pattern of the normal fault assemblage that occurred in the Early and Middle Jurassic may have initiated some small-scale petroleum and gas pools.
中侏罗世早期是全区重要的成煤期,下窑坡组为湖泊—三角洲及沼泽相。
The early Middle Jurassic was an major coal-forming period in the region, when the Lower Yaopo Formation of lacustrine-deltaic and swamp facies was deposited.
柴西南隆升导致中侏罗世地层向北、北东迁移,并出现反向箕状断陷盆地。
Uplift in the southwestern Qaidam Basin led to the migration of Middle Jurassic strata to the north and west, and resulted in the formation of inverted haft-graben fault basin.
早、中侏罗世低位体系域不发育,由海进体系域与高位体系域两部分组成。
Lowstand System Tracts of Early and Metaphse Jurassic Period was undergrown, of which Transgressive Systems Tract and Highstand Systems Tract made up.
上侏罗统普遍被剥蚀。早一中侏罗世盆地经历了水体由浅到深的沉积演化。
The Upper Jurassic is generally exposed. In the area, the water depth evolved from shallow to deep from the Early Jurassic to the Middle Jurassic.
这套地层是双湖地区色哇组的东延部分,时代确定为中侏罗世早中巴柔期。
These successions are the eastward extension of the Sewa Formation in the Shuanghu area and their age is assigned to the Middle Jurassic early-mid Bajocian.
中侏罗世至晚侏罗世早期经历了一次完整的海侵-海退旋回和一次海侵过程。
There existed a transgressive-regressive cycle and a transgressive cycle from the Middle Jurassic to the early period of Late Jurassic.
柴达木盆地北缘是柴达木盆地三大油气区之一,其源岩为早、中侏罗世煤系地层。
The northern edge in Qaidam Basin is one of the three hydrocarbon bearing areas in the basin. Its source rock is the early and middle Jurassic coal measures.
属于区域岩浆热变质作用的一种模式,也是西北地区早中侏罗世煤变质的特点之一。
This is a model of telemagmatic metamorphism and a character of coal metamorphism early-middle Jurassic in northwest of China.
早—中侏罗世研究区处于一种张扭构造环境之中,晚侏罗世盆地发生明显抬升和反转。
The study area was in a tectonic setting of transtension during Early and Middle Jurassic, and the basins were reversed and uplifted in Late Jurassic.
本文应用沉积体系的研究方法,恢复了福建省晚泥盆世-中侏罗世地层的古沉积面貌。
The Late Devonian-Middle Jurassic depositional systems in Fujian Province arereconstructed in the paper.
该构造带的发现支持了古亚洲构造域对东北微陆块区的影响一直延续到中侏罗世的观点。
The discovery of this tectonic zone supports the view that the influence of the Paleo-Asiatic tectonic domain on the Northeast China microblock persisted till the Middle Jurassic.
蔚县煤田早中侏罗世含煤沉积,主要由河流或湖滨河口三角洲相、湖泊相、泥沼相组成。
The early to middle Jurassic coal-bearing deposition is mainly consisted of fluvial or lakeshore, estuarine delta facies, lacustrine facies and slough facies.
在分析岩组特征和植物所指示的气候基础上,推测早-中侏罗世气候的变化趋势是,由炎热潮湿逐渐变为炎热干旱。
Analyzing of lithological characteristic and fossil plants indicates that the Early-Middle Jurrassic palaeoclimate changed gradually from the hot humid to arid.
中侏罗世末期、白奎纪末期的 地层抬升 剥蚀,以及古-始新世的断裂活动对中生代形成的原生油气藏破坏作用明显。
The Mesozoic primary hydrocarbon accumulation has been heavily damaged by the denudations at latest middle Jurassic and latest Cretaceous and the faulting from Paleocene to Eocene.
随后中—晚侏罗世时盆地南部沉降—沉积强度显示出变弱的趋势,期间没有再出现沉降—沉积再加强的现象。
Afterwards, the subsidence-sedimentation process slowed down gradually in the south of the Hefei Basin in the Middle-Late Jurassic without any strengthening phenomenon.
对辽宁西部晚侏罗世义县组中的孢粉植物群进行了系统研究,首次发现了目前为止世界上最古老的被子植物花粉化石。
This paper reports fossil pollen collected recently from the Upper Jurassic Yixian Formation of western Liaoning Province, and first demonstrates the oldest known angiospermous pollen in the world.
柴达木盆地早、中、晚侏罗世地层分布的变化较大,其沉积中心经历了自西北向北、再向东北的两次大迁移过程。
The stratigraphic distributions of Early Jurassic, Middle Jurassic and Late Jurassic in Qaidam Basin are greatly different. The deposit center had two times of great transpositions.
东北地区中新生代盆地演化经历早侏罗世裂陷盆地、中晚侏罗世分割式前陆盆地、晚侏罗世末期至白垩纪裂谷盆地及新生代裂谷盆地四个演化阶段。
Basin evolution in ne China goes through four stages: early Jurassic rift basin, middle-late Jurassic partitioned foreland basin, late late Jurassic-Cretaceous rift basin and Cenozoic rift basin.
车莫古隆起在早侏罗世发生低幅隆升,在中、晚侏罗世则强烈隆升,并使中、上侏罗统地层遭受了严重的剥蚀。
Mild uplifting of the Che - Mo Palaeo - uplift occurred in the early Jurassic, and strong uplifting in the middle and late Jurassic, and thus the middle and upper Jurassic had been highly denuded.
中晚侏罗世类前陆盆地的形成和早燕山期挤压变形阶段;
The Mid-Late Jurassic semi-foreland basin formation and Early Yanshan compressive deformation stage;
中晚侏罗世类前陆盆地的形成和早燕山期挤压变形阶段;
The Mid-Late Jurassic semi-foreland basin formation and Early Yanshan compressive deformation stage;
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