年代学

Here I reported new structural data to answer above question, including field section observations and geologic map with large scale in a key area, accompanying with detail microstructural observations, quartz C-axial fabric analyses, and tectono-thermogeochronology (40Ar/39Ar and zircon SHRIMP U-Pb method). Taking available previous data into account, following progression is achieved:1. Completely rebuilding the post late-Paleozoic deformation history of the Harlik MountainFive stages of deformation were identified:(1)pre-Permian compression deformation which may have resulted from pre-Permian subduction;(2) earlier Permian post-collision extension;(3) middle Permian west-east directed dextral slip shearing;(4) later Permian nearly N-S compression deformation; and (5) later Cenozoic intra-plate N-S compressional deformation.

本文选择新疆东部哈尔里克山为研究对象，通过详细的野外路线地质构造调查和关键地区大比例尺地质填图，以及室内显微结构观察、石英岩组分析和构造热年代学(Ar-Ar和锆石SHRIMP U-Pb定年)研究，结合前人研究成果，取得了如下新进展：1、系统重建了哈尔里克山晚古生代以来的变形历史识别和确定了该区板块俯冲碰撞阶段的二叠纪以前挤压变形，后碰撞阶段早二叠世伸展变形、中二叠世近东西向右行走滑变形和晚二叠世近南北向挤压变形，以及板内演化阶段的晚新生代南北向挤压变形等5期构造变形事件。

By studying the deformation and evolutionary sequences around the Panshan granitic pluton, east-central Yanshan orogenic belt, and 40 Ar/ 39 Ar thermochronological test and analysis,we present the structural evolutionary process of the overlying strata before pluton intruded as well as it was intruding. The sequences of regional deformation are as follows: before the intrusion of Panshan granitic pluton, the N-S trend contraction in the east-central Yanshan orogenic belt took place, which resulted in the regional EW-trending Malanyu multi-fold and Jixian thrust fault; then Panshan granitic pluton intruded into the south limb of the Malanyu multi-fold and cut-through the Jixian thrust fault; later, the reactivity of the Jixian thrust fault cut off the synclines around thePans han granitic pluton.

通过对燕山东段盘山花岗岩岩体周缘构造变形特征、演化过程的研究，并结合40Ar/39Ar 热年代学测试和分析，提出盘山岩体侵位前、侵位时其上覆岩层的构造演化过程：三叠纪末(210-200 Ma)盘山岩体侵位前，燕山中东段受南北向挤压作用形成了近东西向的马兰峪复背斜和蓟县逆冲断裂；盘山岩体侵位于先期形成的马兰峪复背斜南翼，并侵蚀了蓟县断裂；蓟县断裂的后期再次活动截切了盘山岩体的周缘向斜。

Here we dated the Lianhuagou pluton using LA-JCPMS zircon U-Pb method, for molybdenum polymetallic deposit evaluation and prospecting in Luonan county, Shaanxi province in recent years.

本文是笔者近几年在陕西省洛南县灵口地区开展钼多金属矿找矿评价和研究工作中，利用LA-ICPMS锆石U-Pb法新获得的莲花沟岩体同位素年代学数据的研究成果。

5 Ma. These isotopic data provide important evidence for solving the problem of whether there occurred Caledonian mineralization and further support the view that pegmatites and pegmatite rare metal-muscovite deposits in the Altay area were not only formed in the Hercynian.

本次工作通过野外调查和同位素年代学研究，首次在阿尔泰西部的也拉曼大型含绿柱石白云母矿床(426±13Ma)、阿尔泰中部的那森恰大型含绿柱石白云母矿床(447.7±0.4Ma)及阿尔泰东部的青河拜兴白云母伟晶岩脉(436.0±0.5Ma)中获得了可靠的加里东期成矿的同位素年代证据，从而为解决是否存在加里东期成矿的问题提供了重要依据，并进一步认识到阿尔泰地区的伟晶岩及伟晶岩型稀有金属-白云母矿床并非只形成于海西期。

Of strike—slip time of the Tan—Lu fault zone and their tectonic implications.

郯一庐断裂带走滑时代的 Ar.39Ar年代学研究及其构造意义。

Based on the study of chronology and geochemistry of Cd in sediments of the Dongting lake area, we have established an ARIMA model of Cd and Cd/Ca in Quaternary and Holocene period respectively, and discussed Cd evolutionary regularity according to the fitted value and predicted value of the model The results revealed that the Cd evolution has remarkable periodicity of ecogeochemistry cycles, and is correlated with the climate change of alternative cold and warm Cd/Ca is changed with climate, from which the evolutionary history of regional ecogeochemistry can be inferred The changes of Cd and Cd/Ca are basically simultaneous, which showed that the change of Cd is mainly a natural evolution Cd in sediments will rise in the next 30 years and then tend to decrease From the regularity of ecogeochemistry indexes and global environment variation, it is concluded that the natural environment is the dominant factor affecting the Cd deposition

在对洞庭湖区沉积物钻探取样的年代学和地球化学研究基础上，分别建立第四纪和全新世时期Cd和Cd/Ca的时间序列演化ARIMA模型，并据模型的拟合值及未来预测值对区域地球化学环境中Cd的演化规律进行了探讨，结果显示区内Cd的演化有较显著的周期性--环境地球化学旋回，与气候多次冷暖的交替有关；沉积物Cd/Ca受气候环境等控制，分析该比值的变化规律可推测区域环境地球化学的演变历史；Cd和Cd/Ca两者的变化基本同步，说明该区Cd的演化主要为自然演化；未来30年内沉积层的Cd含量仍有逐渐增高的趋势，之后转为降低。从本区环境地球化学指标的时间变化规律及其与全球环境变化的相关联中说明自然条件是区域镉等元素沉积的主控因素。

There are thermoluminescence-photoluminescence meter, high accuracy liquid scintillation counter, hot surface ionizing isotope mass-spectrometer, solid isotope mass-spectrometer, multichannel electro-inductance coupling plasma mass-spectrometer, inert gas mass-spectrometer and their corresponding laboratories.

现拥有热释光-光释光仪、高精度液体闪射记录仪、热表面电离同位素质谱仪、多通道电感耦合等离子质譜仪和惰性气体质譜仪等仪器及相应的年代学实验室。

Summing up these results, we think that the Yinmawanshan batholith came from the mixing, the fractional crystallization and the crust contamination of the enriched lithospheric mantle and the low crust magma.3、the time relationship between the Yinmawanshan batholith' formation and the tectonic extension The field observation and petrology have clearly showed that the Yinmawanshan batholith intruded in the forming period of the Liaonan metamorphic core complex, so this provided direct geological evidence to the viewpoint that the early Cretaceous magamatism of the eastern China developed in the extensionally tectonic setting.

还有一个证据来自对A型花岗岩的研究。A型花岗岩的年代学研究结果显示在东北的大兴安岭地区、张广才岭地区、本文研究区的辽东半岛，几乎所有的上述A型花岗岩都是在120-130 Ma期间形成的，与本文研究的饮马湾山I型花岗岩同时。地球化学资料还显示，这些花岗岩基本具有A1型非造山花岗岩的特点，充分反映了我国东部早白垩世的地质演化与伸展体制有关。根据上述资料我们推测，辽东半岛南部饮马湾山岩体形成时的我国东部由于受岩石圈减薄作用影响而使全区处于伸展构造体制。

A statistical technique used in glottochronology; used to estimate how long ago different languages evolved from a common source language.

语言年代学中之一种统计技术；用来估计不同语言是在多少年前自同一源流进展下来的。

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