古生代

During the Neoproterozoic to the Early Paleozoic, the South China was a marginal basin captured by the Yangtze active continental margin, filled with very thick flysch, sandstone, and shale sediments.

华南新元古代到早古生代是扬子活动大陆边缘构造"捕获"的一个边缘海盆地，其间充填了巨厚的复理石、砂、页岩沉积。

Furthermore,because the interior and exterior characters of fora-miniferal apertures are becoming more and more important in the classification of foraminifera,we should pay more attention to the free specimen s from Paleozoic foraminiferal stu.

另外由于口孔的内部和外部特征在分类学中的地位越来越重要，所以通过实体化石来研究古生代有孔虫理应受到更多的重视。

There exists divergence on the understanding limit of geist.

目前对于古生代叶肢介的生态环境仅限于感性认识，观点尚不一致。

The Geochronology results from the magmatic rocks in study area show that the features of the acid magmatism in Paleozoic are that the ages of the rocks became younger from the eastern to the western and from the northern to the southern.

3通过对岩浆岩年代学成果的总结分析，发现研究区古生代与板块俯冲及碰撞相关的酸性岩浆活动的时空规律是：自东向西由老到新，自北向南由老到新。

Massif form the hard base on the lower part of the ground, above which Okcheon geosyncline and Pyeongan basin, Daedong basin, and Gyeongsang basin form the sedimentary basins of the Paleozoic era and the Mesozoic era.

如果将其作为构成土地的单位加以划分，京畿陆块与小白陆块形成了下部的坚实基础，其上形成了沃川地向斜带和平安盆地、大同盆地及庆尚盆地等古生代与中生代的沉积盆地。

The orebody is located in a contacting belt between granodiorite of Mesozonic and calcareous-aluminous rocks of Peleozoic,and controled by structure and nature of the rocks.

矿床产于中生代花岗闪长岩和古生代钙铝质岩石的接触带中，矿体受构造和岩性控制。

The reflector M2 at about 12s TWT might result from the Paleozoic Moho that turned out to be the boundary between the granulite and eclogite facies.

在双程走时12s处的反射体M2 则是麻粒岩层与榴辉岩层的边界，它也是古生代的 Moho面。

Data of major andminor elements in magnetite, cassiterite, galena and sphalerite from oredeposits within this ore belt suggest that these ore deposits are of skarn,hydrothermal, porphyry and greisen types related to Yanshanian magmaticactivity and that iron in ores came from regional Permian marine interme-diate-basic volcanic rocks whereas partial lead and zinc from Permian geo-synclinic sediments.

矿带中各矿床的磁铁矿、锡石、方铅矿、闪锌矿的主元素和微量元素数据表明，这些矿床是属与燕山期岩浆活动有关的矽卡岩型、热液型、斑岩型和云英岩型矿床；其成矿金属组分中的铁来源于区域晚古生代海相中-基性火山岩，部分铅锌来源于区域二叠纪地槽沉积物。

Kazakhstan is located in the north of Central Asia, belonging to the southern margin of Laurasia, i.e., the southern margin of Craton and Kazakhstan plates in East Europe. Late Paleozoic continental margin basins, such as the Pre-Caspian Basin, are formed in the region.

哈萨克斯坦位于中亚地区北部，大地构造上属于劳亚大陆南缘，即东欧克拉通和哈萨克板块南部边缘，形成晚古生代大陆边缘盆地，如滨里海盆地。

Like the Palaeozoic Era, the Mesozoic Era has been divided into smaller units of geological time called period.

如同古生代一样，中生代也可划分成一些叫纪的较小的时间单位。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。