查询词典 hydrothermal

The implications and the results of the transition metal isotopes in the study of seafloor hydrothermal activity have been introduced.

主要介绍了过渡族金属元素同位素在现代海底热液活动研究中的应用以及取得的重要成果。

Research on heat and mass flux caused by modern seafloor hydrothermal activity is very important, because it is not only the base of ocean environment research, but also involved in historical evolution of seawater properties.

对现代海底热液活动所导致的热和物质的通量研究是非常重要的，因为这不仅涉及到海洋环境研究的基础，而且涉及到海水性质的历史演化。

POGG is concerned with research about a variety of carbon containing compounds to understand processes which had an effect on the forming of petroleum basins and sediment-covered hydrothermal vent areas.

石油有机地球化学团体主要研究有关碳的化合衍生物，以及石油盆地和沉积物覆盖的温泉地带的形成过程。

Nanospheres of Zinc Selenide have been synthesized by hydrothermal method using hydrazine hydrate as reductant and oleic acid as surfactant.

以水合肼为还原剂，并用油酸作为表面活性剂，合成了具有面心立方结构的立方闪锌矿型硒化锌纳米球。

The relationship of ore-forming fluid salinity-aqueous cation lg demonstrated that water-rock reaction was also one of the potential gold deposition mechanisms besides mixing with meteoric water. All of these were consistent with that sericitization and pyritization hydrothermal alteration were extensively/intensively distributed (as high as 33%), gold grade linearly correlated with degree of alteration,∑REE depletion and δ〓O enrichment

成矿流体盐度-液相主要阳离子组分1g演化规律研究表明，除与大气降水的混合-稀释外，水-岩相互作用也可能是造成金沉淀的重要因素，这与本文所研究金矿床中绢云母化、黄铁矿化等热液蚀变广泛发育(可高达33％)，Au品位与热液蚀变程度、REE亏损量及δ〓O富集规模表现出较为明显的线性关系等一系列地质事实相吻合

The ore-near hydrothermal alteration rocks in Pangushan tungsten deposit s incluted;silicification,greisenization muscovization,phyllitealteration,sericitization,biotization,chloritization, carbonatization and so on.

盘古山钨矿床的近矿热液蚀变作用包括硅化、云英岩化、白云母化、绢英岩化、绢云母化、黑云母化、绿泥石化和碳酸盐化等，与钨矿化关系密切的蚀变作用是云英岩化和白云母化，其次是硅化、绢英岩化和黑云母化。

The Characteristics of Siliceous Rocks and Occurrence of Gold and Silver in the Hydrothermal Sedimentary Gold Deposit ,Tengchong, Yunnan

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Arsenian pyrite is the most important Au-bearing mineral, and silicification with quartz veins is the well-marked hydrothermal alteration.

含砷黄铁矿是该矿床最主要的载金矿物，硅化及石英脉是最显著的热液蚀变类型。

The wall rock alteration is silicification, potash feldspathization and pyritezation. Analyses of the correlation,R-type cluster, orthogonal and oblique factors on some trace elements from 57 samples with primary halo show that the Au,Cu, Ag came into the same ore-bearing hydrothermal p...

通过57个矿床原生晕样品部分微量元素相关分析、R型聚类分析和正交因子、斜交因子分析，表明Au、Cu、Ag组合为主要矿化阶段的元素组合，是化探找矿的重要指示元素。

Calculation of loss and gain of components in parentage and altered rocks during metasomatism, reveals that, in rubification and afforestation belts, the components brought in were K〓, CO〓, H〓O, and the components brought out were SiO〓, Ca〓 and Na〓, implying that the early ore-bearing hydrothermal fluids were rich in CO〓 and H〓O. SiO〓 brought out from potassic and chlorite alteration zones could serve as the main source for SiO〓 necessary in the formation of quartz veins, of silicification and of bericitization at shallow depth.

说明早期成矿流体为富含CO〓、H〓O等的碱性流体，其中钾化、绿化带中带出的SiO〓等是浅部石英脉、硅化、绢英岩化中硅质的主要来源，带出的Ca〓与成矿流体中的CO〓结合形成碳酸盐化，带出的Na〓则在浅部形成钠长石脉。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。