元古代

And the results for two samples from Xiakangiayu, southeast of Xiaojue give an approximate age around 2.06～2.08 Ga for another episode of anatexis in the Paleo-Proterozoic time.

小觉西南下康家峪两块标本的测定结果，提供了该地区阜平群岩石在2.06～2.08 Ga经历了古元古代时期重熔作用改造的信息。

LA-ICPMS U-Pb Dating of Zircons from Two Types of Leucosomes in North Dabie Unit: Evidences for Paleoproterozoic Anatexis and Triassic Subduction?

篇名 北大别两类浅色体的锆石LA-ICPMS年龄－古元古代深熔作用和三叠纪俯冲证据？

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intruded , and are relatively barren of fossils.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

At the end of Palaeoproterozoic (ca.1 600 Ma or 1 800 Ma), along with the Machonlyong Sea closed, the Rangrim and Gwanmo microcontinents became a whole massif through collision, which called Machonlyong motion (corresponding to Luliang motion in China).

古元古代末（约1600或1800 Ma），随着摩天岭海闭合，狼林微陆块与冠帽微陆块通过碰撞聚合而形成一个整体，称为摩天岭运动（可以对比中国的吕梁运动）。

In this area, there are huge thick basalt and diabase wall clusters, which have been thought as the Mesoproterozoic basic magmatism.

此地区发育巨厚的玄武岩及辉绿岩墙群，过去认为系中元古代时期的基性岩浆活动。

An evolutionary sequence of paleoproterzoic granite in the Luliang area was initially established based on a large number of isotopic geochronology data and geologic settings of each-stage granites were determined on the basis of geochemical features and geologic characteristics.

根据大量同位素年代资料，初步建立了吕梁地区古元古代花岗岩的演化序列，并根据地球化学特征和综合地质特征确定了各期花岗岩形成的地质背景。

Based on the settings and geological and geochemical characteristics of granitoids of different orogenic belts (exemplified by orogenic granitoids in Altay, East Kunlun, Yanshan in North China, Northeast China and Nanling in South China), the relationships between granitoids and continental crustal growth are discussed, and five modes of continental crustal growth in the continent of China are proposed;they are as follows:(1)the Altay mode of continental growth is that the material and heat of the Paleozoic convertive mantle formed on the background of the Paleo-Asian Ocean were input into the Paleozoic continent and mixed with the materials of the upper crust;(2) the East Kunlun mode is that the basement of the Proterozoic orogenic belt was reworked by the heat input and materials of the Paleozoic-early Mesozoic convective mantle formed on the background of TTG continental crust of the Proterozoic orogenic belt;(3) the Northeast China style is that the Phanerozoic continental crust was reworked by the heat input and materials from the convective mantle formed on the background of the Yanshanian Central Asian orogenic belt;(4) the Yanshan mode is that the Archean basement was reworked by the heat input and materials from the Yanshanian convective mantle;and (5) the Nanling mode is that in South China what was input by the Yanshanian convective mantle into the continent was mainly heat and subordinately materials and the crustal material recycle was the dominant mode for the continental growth (showing zero continental growth).

根据不同造山带花岗岩的形成背景，地质地球化学特征差异，以阿尔泰，东昆仑，华北燕山，东北和南岭造山带花岗岩为例讨论花岗岩与大陆地壳生长的关系，区分出中国大陆的5种大陆地壳生长方式：阿尔泰式是古亚洲洋背景上形成的古生代对流地幔物质，热输入和上地壳混合为主的方式；东昆仑式是元古代造山带TTG陆壳背景基础上古生代—早中生代对流地幔物质和热输入，改造元古宙造山带基底的方式；东北式是燕山期中亚造山带背景上对流地幔物质和热输入改造显生宙陆壳的生长方式；燕山式是燕山期对流地幔物质和热输入改造太古宙基底的方式；南岭式燕山期对流地幔输入大陆的是以热为主，物质为辅，大陆地壳生长是以陆壳物质再循环为主的生长方式。

The growth of the continental crust of southeastern China has been discussed based on the compilation of Nd isotopic model ages of metamorphic basement and granitoid rocks from the region.

中国东南变质基底岩石及各时代花岗岩的Nd同位素模式年龄的统计研究结果表明，该地区太古代—古元古代陆壳以横向增生方式形成，显生宙表现为局部的垂向增生。

It is known from this paper that the evolutions of Palaeo Protrozoic and Archaean lithospheres in Fennoscandian shield are very different.The trans European suture zone results from the reworking of Precambrian crust and also from the Caledonian and Variscan terr...

通过研究，人们已认识到芬诺斯堪的亚地盾古元古代、太古代岩石圈演化特征有明显不同；横跨欧洲的缝合带既是前寒武纪地壳显生宙重新活动的结果，也是加里东和华力西地体增生作用的结果；乌拉尔造山带是古生代微大陆碎块进一步裂解、崩解、增生到东欧大陆边缘的结果；侏罗纪到现代的非洲—阿拉伯板块及其间的大陆地体与欧洲板块相互作用制约了喀尔巴阡和迪纳拉造山带演化，同时影响了东欧克拉通边缘应力场，也深深地波及到克拉通内部，形成裂谷作用。

The REE distribu- tion curves of Archaeozoic metamorphic rocks,Proterozoic granite,Tertiary basalt, Mesozoic granite,granite-porphyry,rhyolite,tuff,and gold ores are of right inclinnation, which indicates they enrich LREE and have completely similar Ce negative anomaly.

研究表明：太古代变质岩、元古代花岗岩、中生代花岗岩及花岗斑岩、流纹岩和凝灰岩、第三纪玄武岩及金矿石的稀土配分曲线均为右倾斜型，即富轻稀土，都有十分相似的 Ce 负异常。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。