古生代

This paper discusses the filling succession and evolution of the NW-trending Paleozoic Shuicheng-Ziyun aulacogen in western Guizhou.

研究了贵州西部古生代发育起来的北西向水城-紫云裂陷槽盆的充填序列和演化。

The Meso-Cenozoic tectonic movements have great influence on present petroleum accumulations in Paleozoic basins in the south of China.

中新生代构造运动对现今南方古生代盆地的油气聚集有重大影响。

From late Paleozoic to early Mesozoic, there was a complex trench-arc-basin system between Yangtze and Cathaysia blocks.

从晚古生代－早中生代，扬子陆块和华夏陆块之间可能存在一个复杂的沟弧盆体系。

The communities of Paleozoic plants congregated at the water's edge and began to colonize the earth's surface.

不断聚集在水边的古生代植物群开始侵占地球表面。

Formed hundreds of millions of years ago during the Palaeozoic era, it is believed that the pegmatite rocks found at the location of Alexandrite's discovery in the Urals in Russia and at Narsipattnanm are the same.

她形成于几百万年前的古生代，因此人们有理由相信有俄乌拉尔山脉伟晶岩层中发现的亚历山大石与在娜西帕特拉姆发现的亚历山大石同宗同脉。

The Late Paleozoic volcanic rocks widely outcropped in the south margin of the Altai Mountains, in which the Middle Devonian Beitashan Formation consists of a series of volcanic-sedimentary rock predominated by intermediate-basic volcanic with rare picrite and ankaramite at the base.

阿尔泰山南缘晚古生代火山岩十分发育，其中中泥盆世北塔山组为一套以中基性火山岩为主的火山－沉积岩系，并且其下部发育少见的苦橄岩和富辉橄玄岩。

Thus, from the stratigraphic provincialism veiwpoint, two stratigraphic regions, i.e.

在此基础上，编制了东北地区晚古生代岩石地层对比表。

The dyke swarms can be divided into pyroxenite, diabase, gabbro-diabase. They, together with the snychronogenic trachyte and basalt distributed in the area, constitute a suite of bimodal volcanic rock association, indicating that an extension event of the crust occurred in this area during the end of Early- Paleozoic.

该岩墙群主要岩石包括有辉石岩、辉绿岩以及辉长辉绿岩，它们与该区同时代粗面岩和玄武岩类一同构成本区一套具双峰式火山岩特征的岩石组合，指示了该区在早古生代末期曾发生一次地壳伸展扩张事件。

The SN structure is superimposed and compounded by Paleozoic relict structure of the lithosphere and new production from the mantle or the core-mantle interface.

SN向构造是在地壳或岩石圈中被保留下来的古生代构造基础上，后期可能源于深层次甚至下地幔动力学过程的表现。

Within pelitic metamorphic rocks, even though sillimanite is well developed and the low-pressure minerals like andalusite and cordeirite etc.

新疆阿尔泰古生代造山带以低压变质及花岗质岩浆作用广泛发育闻名国内外，泥质变质岩系中矽线石较发育，红柱石和堇青石等低压特征矿物相当常见，但是，石榴石—十字石的组合更普遍。

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。