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And the rapid uplift of Tibetan Plateau, commenced around 8 Ma or 3 Ma, can be explained by the convective removal and replacement by hotter asthenosphere of the thickened lithosphere...

大陆岩石圈的增厚及热结构变化和对流剥离可能是青藏高原自9百万年前开始的夷平—快速隆升过程的主导控制因素。

To the east, much nearer and in clear view, are countless peaks and snowfields of the Continental Divide, including the Clemenceau Icefield, Mt Columbia and the Snow Dome.

在东面,更接近和清晰,有无数的山峰和雪域高原的大陆分水岭,包括梭冰原,哥伦比亚和山雪圆顶。

With this method, firstly, we investigate the influences of the collisional angle, the frictional coefficient and the viscosity of the continents on deformation, and then we study the influence of the collision between the India and Eurasia continents on the deformation of Tibetan plateau in the different periods.

首先探讨了碰撞断裂带倾角、断裂带摩擦系数及断裂带两侧块体介质粘性对陆—陆碰撞变形的影响,在此基础上进一步研究了印度和欧亚大陆碰撞对青藏高原早期、中期和晚期变形的影响,揭示了青藏高原的变形过程。

Genus of herbs of mountains of North America and Eurasia and Africa .

北美到欧亚大陆和非洲的高原的草本的属。

Based on our comparative study of the Indosinian sutures, we consider the Longmu Co-Shuanghu-Jitang suture to define the Neopaleozoic northern boundary of Gondwanaland.

在青藏高原印支期主要板块缝合带的对比研究基础上,笔者认为龙木错-双湖-吉塘缝合带作为青藏高原上冈瓦纳大陆的北界是符合客观实际的。

Antarctica is the highest continent, 84. from 85. plains to a high 86. more than 13,000 feet

南极洲是最高的大陆,从海平面的平原升起来一直到比海平面高13,000呎的高原。

The eight major research topics are :①understanding coremantle processes, by deep drilling into a large oceanic plateau in the Western Pacific;②detailed investigation of material circulation during greenhouse Earth, and the transition process from greenhouse to icehouse environments, by drilling Cretaceous to Cenozoic sediments in the Pacific,③understanding the process of continental crust formation by deep drilling into oceanic arc,④Understanding the process of oceanic lithosphere formation by deep drilling of the back arc spreading system,⑤understanding of continentoceanatmosphere linkage, by drilling in the marginal seas and continental slopes of Asia,⑥investigation of the carbon cycle and the deep biosphere in accretionary prisms,⑦investigation of the mechanism and cycles of great earthquakes, tectonics, and mass circulation in convergent plate margins,and ⑧biology of extreme microorganisms living in deep accretionary prism environment.Keywords : Japan IODP Drilling Scientific goals.

其八项研究目标为:①钻探西太平洋洋底高原,认识核—幔作用过程;②钻探太平洋白垩纪—新生代沉积物,详细研究地球温室期间的物质循环及从温室环境到冰室环境的转化过程;③钻探大洋岛弧,认识大陆地壳形成过程;④钻探扩张的弧后,认识洋壳岩石圈形成过程;⑤钻探亚洲边缘海及陆坡,认识陆壳—洋壳—大气圈关系;⑥调查增生楔中的碳循环及深部生物圈;⑦调查汇聚板块边缘大地震周期及形成机制、构造及物质循环;⑧研究生活于增生楔环境中极端微生物生物学。

Combining the available regional geological and geophysical research, the petrogenesis of the magmatism was studied. As a response and absorption to the IndiaAsia collision, the northeastward flow of the asthenosphere beneath the Tibetan Plateau along the 400 km depth interface was blocked by the North China craton, and caused a systemic sequences in West Qinling Region, including the strikeslip fault systems and pullapart basins in the shallow crust and the origin of the twotype magmatism in this work in deep lithosphere. This explanation is consistent with the lithology and plumelike geochemical features of the kamafugite and potassic trachybasalt, which are significantly different from the potassic magmatism within the plateau and its adjacent regions.

结合前人对该区深部地球物理和断裂构造的研究,论证了火山岩的起源与成因,指出作为对印度-欧亚大陆强烈碰撞的吸收与调节,高原下软流圈地幔流沿400 km界面向北东方向的侧向流动以及西秦岭周边克拉通块体的阻挡,是形成西秦岭断裂系左行走滑特征和巨大拉分盆地的主要原因,也是导致西秦岭新生代两类钾质火山岩和碳酸岩起源与成因的动力学机制,较好地解释了西秦岭新生代岩浆作用起源深度大,具有地幔柱源的地球化学特征,岩石组合与地球化学有别于高原内部及其周边地区新生代钾质火山岩的原因。

The high Mg^# calc-alkaline and high Mg^# shoshonitic series in Qiangtang-Mangkang area indicate some intracontinental subduction happened ever in the middle part of the plateau, then the subducted slab broke off and asthenosphere was upwelled 30Ma ago, while the lithospheric mantle was melt to form low Mg^# peralkaline potassic, ultrapotassic series.

综合地球物理资料,提出青藏高原在印度大陆岩石圈的强力楔入下,高原内部软流圈物质沿欧亚岩石圈地幔俯冲板片的顶部向北东和南东挤出,使上覆岩石圈地幔发生剪切破裂,形成一系列串珠状高速体与低速体的相间分布,并随时间不断向北扩展。

According to the analyses of the main periglacial processes and their landform types as well as the correlation with the rock cryo-genic weathering, it is concluded that the continental periglacial process which developed in the most areas on the Qinghai-Xizang Plateau, is dominated by the freeze-thaw, salt and insolation weathering which may exert same influence in the cryo-genic weathering assemblage.

本文总结分析了青藏高原的几种主要冰缘过程及其主要冰缘地貌类型与岩石冷生风化的关系,认为发育在青藏高原大部分地区的大陆型冰缘过程主要由冻融作用、辐射作用和盐分作用构成的冷生风化组合所控制,各个作用可能占有同等重要的地位。

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