地球年代学

As such, it rejects not only radiometric and isochron dating of the age of the Earth, arguing that they are based on debatable assumptions, but also approaches such as ice core dating and dendrochronology, which make the barest of assumptions of uniformitarianism, and which hint that the Earth is far older than the Ussher-Lightfoot Calendar suggests.

如同这个，不仅拒绝放射性和等时线地球年代测定方法，争论基于可争论的假定，而且采用这类冰核和树木年代学测定，树木年代学使得均变论假定一览无遗和暗示了地球比Ussher-Lightfoot日历更为古老。

Paleomagnetism and Geochronology Laboratory, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China

中国科学院地质与地球物理研究所古地磁与地质年代学实验室，北京〓100029

The Berkeley Geochronology Center is a non-profit scientific research institution dedicated to establishing the history of the Earth, its various inhabitants, and its interactions with the rest of our Solar System, throughout the 4.6 billion years of our planet's existence.

Berkeley地质年代学中心是一个非盈利性的科研机构，致力于建立46亿年前地球形成以来，地球的历史、地球上各种繁衍物种的历史，以及地球与太阳系其它天体相互作用的历史。

This site is the homepage of Department of Earth Sciences, Dalhousie University of Canada. The department's research subjects include crustal dynamics and geochemistry, geochronology and thermochronology, land and marine surface systems and landscape evolution, petroleum and economic geology, etc.

该网站是加拿大Dalhousie大学地球科学系的主页，它介绍了有关该系的教学和科研情况，该系的研究包括地壳动力学和地球化学、地质年代学和地热年代学、陆海表面系统和地貌演化、以及石油和经济地质等。

In China, only the 40Ar/39Ar Laboratory of Beijing University has realized automatic measurement, but its control system was completely transplanted from Berkeley Geochronology Center, California, US.

针对国内这一领域的空白，中国科学院地质与地球物理研究所联合天津大学精仪学院共同合作研究"中国科学院科研仪器创新研制项目——智能化惰性气体同位素测量系统"，率先提出智能化测量系统的研究方向，在Ar-Ar年代学实验室现有质谱设备的基础上进行研制。

A good many mico-landblock of the early Neoproterozoic-Cambrian volcanic rock that distribute in the Tianshan orogenic belt and on its both sides, and the Carboniferous-Permian volcanic rocks that widely distribute in the Tianshan and adjacent regions are selected for subject investigating in this paper. Renewing the ocean-land format and ocean-land conversion process of Tianshan orogenic belt in the Paleozoic is the masterstroke for this paper. On the basis of detailed field investigation, many subjects, such asregional lithology、geochemistry、structural geology、volcanic sedimentology geology、sotope geochronology and synthesis analysis study of geophysics data, are adopted as instrumentality in the paper, this study lays emphasis on the formation, evolution and dynamics of early Neoproterozoic-Cambrian and Carboniferous-Permian volcanic rock in the Tianshan and its adjacent regions to find out Carboniferous-Permian volcanic rock property, eruptive sequence, time and space distribution characteristics, to resume and reconstruct evolution process of Carboniferous-Permian volcanic rock, and to explore connection of magmatism process and lithosphere stretching action of neopaleozoic ocean-land transformation in the Tianshan region.

本文选择分布于天山及其两侧的诸多微陆块上新元古代—早寒武世火山岩和天山地区广泛发育的石炭纪—早二叠世火山岩为研究对象，以恢复重建天山造山带古生代洋陆格局和洋陆转换过程为主线，在详细的野外工作基础上，综合运用区域岩石学、地球化学、构造地质学、火山沉积学、同位素地质年代学、区域地球物理资料综合分析研究等多学科手段，重点研究天山及其邻区新元代—早寒武世和石炭—二迭纪火山岩系的形成演化及其动力学，查明天山石炭纪火山岩系的性质、喷发序列、时空分布特点，恢复重建其形成演化过程，探索天山地区晚古生代洋陆转换过程中火山岩浆作用与岩石圈拉伸作用的关系。

In order to solve the important and basic problem of the petrogenesis of "Tiantangzhai migmatitic granite" in the core of Dabie orogenic belt, the detailed 1∶50000 regional geological surveying and the big scale dissection of important region (metamorphic rocks, granites and structure), were operated in about 900km〓 area near Tiantangzhai peak. On the bases of the petrology, mineral chemistry, geochemistry of rare earth element and microelement, isotope geochemistry and chronology, physicochemistry, magmatic dynamics, geodynamics, diagenetic simulation, and regional geophysical data, the theory of cooling age and historical geochemistry and the viewpoint of tectonic evolution are applied to study the petrogenesis of Yanshan epoch granites of this region. On the bases of above studies, the process of tectonomagmatic dynamics after indo-Chinese epoch in Dabie orogenic belt is discussed. The important conclusions are gotten

本文针对大别造山带核部&天堂寨混合花岗岩&成因这一重大基础地质问题，在天堂寨一带近900km〓的面积上进行了详细的1∶5万区域地质调查和大比例尺重点区解剖，通过对区内燕山期花岗岩进行岩石学、矿物化学、稀土微量元素地球化学、同位素地球化学和年代学、物理化学、岩浆动力学、地球动力学和成岩计算机模拟等研究的基础上，结合区域地球物理学资料，应用冷却年龄、历史地球化学理论和构造演化观，阐明区内燕山期花岗岩成因，并以此为基础进一步讨论了大别造山带自印支期以来的构造—岩浆动力学过程，取得了如下的重要认识

In this his dissertation, the field geological work and modern analysis were finished on the Qulong ore-bearing porphyries. The mineralization chronology, petrology, element and isotopic geochemistry were studied on the porphyries. This dissertation also compare this work in Qulong ore-bearing porphyries with other ore-bearing porphyries in Gangdese belt, in order to probe into dynamical background and mineralization features of the ore belts in the condition of India-Eurasia collision.

在充分搜集、利用前人资料及成果的基础上，本论文力求以地球动力学和现代成矿理论为指导，采用先进的分析测试手段和野外地质工作相结合的方法，通过重点研究驱龙斑岩铜矿床的岩石学、同位素地球化学、常量与微量元素地球化学及成矿年代学，并与冈底斯其它斑岩矿床对比，探讨在印度—欧亚大陆碰撞条件下，冈底斯斑岩铜矿带的大陆动力学背景及成矿规律。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了