glaciations

glaciations的基本解释

n.

冻结成冰, 冰河作用( glaciation的名词复数 )

与glaciations相关的网络例句 [注：此内容来源于网络，仅供参考]

For example, an early classification of Alpine glaciation suggested the existence there of four glaciations, named the Gunz, Mindel, Riss, and Wurm.

比如，一个较早关于阿尔卑斯冰川的划分方案就提出了四个冰川期，分别是Gunz， Mindel， Riss， and Wurm。

With the progress of the theory and methodology of Cosmogenic surface exposure dating, the technique has been widely used in studies of Quaternary glaciations, impact craters, volcanic surfaces, and fault faces.

宇宙成因核素地表暴露测年技术的理论和方法日臻完善，目前它已被广泛到第四纪冰川、撞击坑、火山地貌、断层面等地学问题中来。

It is nothing else than impurities prenatal inherent in ore that seriously affect the quality of the latter, which is formed as a result of geological vicissitudes including diastrophic movement, eruption of volcano, sedimentation, glaciations and weathering etc.

没有什么比矿石中含有的天然杂质更能影响矿石的品质了，这些矿石是由地质的变迁引起的，包括地壳运动，火山爆发，沉淀，冰河作用，风化作用等等。

Researchers used the features of glacial erosional and sedimentary landforms as well as the differences of the glacial tills in chemical and physical weathering to determine the ages of Quaternary glaciations .

1引言20世纪70年代及其以前，我国第四纪冰川的年代主要是采用相对年代法确定，即采用冰川侵蚀地貌和沉积地貌，冰碛物化学和物理风化程度差异来划分第四纪冰期[1~3]。

The contrasting isotope data between 850 Myr ago and the Neoproterozoic suggest that the terrestrial expansion of photosynthesizing communities preceded the significant climate perturbations of the late Precambrian glaciations, and was followed by a rise of O2 ref.

对比850百万年前和新元古代的同位素数据表明陆地光合作用群落生物的爆发应当先于晚前寒武纪冰川作用的气候变动。