沉积作用

At the stage of platform, the "higher Pb-Zn source bed" would be formed in the plantform-type carbonatite forma tions, especially in the first carbonatite position after every large-scale ingression, by enrichment of weathering deposition, diagenesis, biogenesis and organogenesis.

地台阶段，风化沉积成岩、生物有机质等富集作用形成了地台构造层的碳酸盐建造中（特别是大规模海侵后的第一个碳酸盐岩层位，如D〓、C〓、P〓。）的Pb、Zn上部矿源层。

Under the laser irradiation,the characteristics of the metal ion in the deposition processes are described in the paper.

文摘：介绍在镀液中，在激光光束作用下，金属离子沉积过程的一些特点，并对其原因进行了简单的探讨。

Modification on the structure and characteristics of films was observed for the technology to be similar to that for ion beam enhanced deposition .

这种技术可以获得与常规束线离子束增强沉积相近的对薄膜结构和特性的改性作用。

The short-chain carboxylates in ore fluids are possibly produced by pyrolysis of kerogen or by chemical oxidization of hydrocarbons.

短链羧酸的形成机理可能是沉积地层中干酪根的受热裂解或可溶烃的化学氧化作用。

The results show that the sandstone reservoirs with high porosity and permeability are mainly composed of coarse-grained lithic quartz sandstone and quartz sandstone with relatively well-preserved primary intergranular pores, relatively large median radius and average pore throat radius, and relatively low displacement pressure.

结果表明：组成高孔、渗储层的砂岩类型主要是粗粒的岩屑石英砂岩和石英砂岩，其较多地保存了原生粒间孔，具有较高的中值半径和平均喉道半径以及较低的排驱压力；高能环境下有利的沉积微相和成岩早期包壳状胶结物对原生粒间孔隙的保护作用是形成高孔、渗储层的基础条件。

Apparent correlations of low δ13C between widely separated sections may relate simply to eustatic sea-level drops where phreatic lenses intrude simultaneously during lithification.

较低的碳同位素比值出现在了很长期的并且相对独立的沉积其内，表示了这个时期曾经发生过普遍的海水沉降，同时不断出现了潜水区的透镜体的入侵，从而定义为成岩作用。

Based on field work in fourteen typical ore districts of China, the author made experiments on contact metasomatism of ultrabasic-acid intrusive rocks with carbonate rocks, interaction between volcanic pneumatolyto-hydrothermal solution and volcanic rocks, and metasomatism in the process of sedimentary metamorphism and migmatizatiun.

本文作者在全国14个典型矿区的野外工作基础上，进行了超基性-酸性侵入岩与碳酸盐岩的接触交代实验；火山气热液与火山岩的相互交代实验；区域沉积变质和混合岩化过程中的交代作用实验。

The obtainted quantitatively statistical results of the assemblages of the quartz grain surface textures formed by the chemical erosion precipitation are well correlated to the analytical results of mineral X ray diffraction and micropaleontology and can better explain the changes of sedimentary environment and paleoclimate which the marine zone concerned underwent.

石英颗粒因化学溶蚀－沉淀作用形成的组合表面特征的定量统计结果与矿物的X射线衍射和微体古生物的分析结果相对应，能较好地解释该海区经历的沉积环境和古气候变化。

Based on establishing Miocene sequence stratigraphy framework with high resolution in Huizhou area,the configuration is analyzed for various sequences,and the formation mechanism,distribution and c.

建立了惠州地区中新统高精度的层序地层格架，在此基础上分析不同类型层序的构型特点，研究不同类型坡折带的形成机制、分布范围及对沉积体系的控制作用。

Therefore, Sirt1 is not only an important longevity factor, but also may play a key modulatory role in animal fat deposition and muscle development.

提示Sirt1不仅是一个重要的与机体"长寿"有关的因子，而且可能在动物脂肪沉积和肌肉发育中起着关键的调控作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐