氧逸度

影响金从热液中沉淀的物理化学因素有温度、压力、氧逸度、pH值和形成金的配合物的配体组份的活度。

The physico-chemical factors responsible for the deposition of gold from hydrothermal solution are temperature , pressure , oxygen fugacity , pH and the activity of ligand forming gold coordinate compounds .

而Mg与Fe2O3/FeO的负相关则说明，岩浆演化过程中氧逸度的升高可能是导致氧化物熔体不混熔的主要原因。

In contrast , negative correlation between Mg ~ # and Fe_2O_3 / FeO ratios implies that the increasing of oxygen fugacity is very likely the main factor to induce immiscibility of oxide melt .

本文采用氢感应法，测定低温水热条件下Pt的H2渗透常数k，并可根据H2渗透来计算实验体系的氧逸度。

Using the hydrogen sensor method of measuring the permeability constant K of hydrogen through platinum under low temperature hydrothermal condition , the oxygen fugacity in the experimental system can be calculated based on the permeability of hydrogen .

成矿流体中的硫也是多来源的，硫的活度与氧逸度有关，高温还原环境H2S的活度降低；

The sulphur in ore-forming fluid is of multiple sources , and its activity is related to the oxygen fugacity . The activity of H_2S is down in the high temperature reduction environment .

在200&550℃和60MPa条件下，以氯化物溶液对绿岩中金进行了淋滤实验，部分实验控制了氧逸度。实验结果显示，金的淋滤率与温度、溶液成分、酸碱度及氧逸度有关。

Leaching experiments of gold in greenstone were carried out with chloride solutions at temperatures of 200 to 550 ℃ and a pressure of 60 MPa .

成矿流体具有中低温、浅成、偏碱性、弱还原特点。成矿条件参数pH值、氧逸度、硫逸度、Eh值及δ34S值均随着还原参数Hy和温度有规律变化。

Ore forming solution was of the characteristics of low-medium temperature , shallow setting , alkaline and weak reduction Parameters such as pH , oxide fugacity , sulfur fugacity , Eh and δ 34 S varied regularly with the variation of Hy and temperature ?

分别使用三种不同的参考缓冲剂Cu-Cu2O，Ni-NiO，Cu2O-CuO原位测量了40%填充度，不同温度下超临界水中的氧逸度值。

Using CU-CU2O , Ni-NiO , and CU2O-CUO as the reference buffers of the tested YSZ oxygen sensor , we monitored in situ the oxygen fugacity of supercritical water with a 40 % filling at different temperatures .

上地幔的氧逸度与金刚石的成因

Oxygen fugacity of earth 's upper mantle and genesis of diamond

地幔氧逸度的研究进展

A review of studies on oxygen fugacity of the earth mantle

高温高压水热体系中氧逸度测量传感器的研制与应用

Development of Oxygen Fugacity Sensor for High Temperature-High Pressure Hydrothermal Systems

地幔氧化状态和氧逸度简介

An introduction to research on mantle re-dox state and its oxygen fugacity

高温高压下氧逸度的就位测量与控制

In situ measure and control of oxygen fugacity at high temperature and high pressure

氧逸度控制是由Ni+NiO固体缓冲剂完成的。

The solid buffering agents Ni + NiO were selected to control over oxygen fugacity .

高压水热体系中氧逸度/活度测量与控制技术的回顾与展望

Review of Oxygen Fugacity Sensors and Control Techniques Used in High-Pressure Hydrothermal Systems and Their Prospects

成岩时氧逸度较低。

Relatively low oxygen fugacity .

华南花岗岩类中铁钛副矿物组合与氧逸度关系

The relationship between the assemblages of Fe-Ti accessary mineral and oxygen fugacity in the granitoid of South China

但在高位岩浆房中，随着分离结晶作用的进行，岩浆的温度和氧逸度逐渐降低。

However , the temperatures and oxygen fugacity of magmas at high level magma chamber decreased along with fractional crystallization .

该玄武岩是在特定的温度、压力、氧逸度条件及裂谷的构造背景下形成的。

The basalt formed under the particular conditions of temperature , pressure and oxygen fugacity and structural setting of rift .

高温高压下样品中氧逸度由此可独立于温度、压力进行就位控制。

In this way , the oxygen fugacity in the sample can be conveniently controlled in situ independent of temperature and pressure .

由于这种作用的影响，使钾质煌斑岩的源区地幔处于地温梯度高、氧逸度高的不稳定状态。

Under the influence of the subduction , the source mantle of the potassic lamprophyres has a high geothermal gradient and oxygen fugacity .

认为形成这一类型矿床的流体是一种高氧逸度、高硫逸度的中低温酸性流体。

It is concluded that the fluid forming this type of copper-gold deposit is one high oxygen and sulphur fugacity and low-to-moderate temperature acid fluid .

地壳与上地幔物理学术讨论会地幔氧化状态和氧逸度简介

First Symposium on physics of the crust and upper mantle in Nanning Shi an introduction to research on mantle re-dox state and its oxygen fugacity

影响韵律形成的因素很多，通常包括岩浆成分、对流作用、扩散作用、热梯度、氧逸度、温度和压力等。

These factors include magma composition , convection , diffusion , thermal gradient , oxygen fugacity , temperature , pressure , the shape of magma chamber etc.

目前，某些研究者推出几种流体包裹体的氧逸度计算公式和相应的图表。

At present several formulae for calculating oxygen fugacities on the basis of fluid inclusion da-ta and corresponding diagrams and tables have been proposed by some researchers .

本文把岩浆温度、氧逸度、粘度、密度、上升速度及裂隙宽度的估算引入金伯利岩。

Furthermore , calculations of magma temperature , oxygen fugacity , viscocity , density , uprising velocity and the creak width are also introduced in this paper .

它们在地层剖面上的空间分布，反映各旋回铁矿物相的形成环境，在时间上自早至晚，空间上自下而上，其氧逸度逐渐增高。

The spatial distribution of iron mineral facies in stratigraphic section shows that the sedimentation-ore formation environment had an increasing oxygen fugacity in the course of each cycle .

本文对赤铁矿的成因作了简要分析，认为红色花岗岩中的赤铁矿大多为高氧逸度条件下的产物。

Based on a brief analysis of the genesis of hematite , the authors hold that hematite in red granite was mostly produced under the condition of high oxygen fugacity .

花岗质岩石中铁质球粒的数量与特征取决于花岗质岩浆源区的物质成分、岩浆的氧逸度及岩浆温度的变化规律等因素。

The amount and characteristics of iron-spherules in granitoid rocks depend on the composition of the material source of granitoid magma , the oxygen fugacity and the temperature of granitoid magma , etc.

其次，氧逸度和硫逸度的变化，则表现为：随着热流体温度和压力的降低，氧逸度和硫逸度则不断降低。

Next , the changes of oxygen fugacity and sulfur fugacity are as follows : with the lowering of temperature and pressure of thermal fluid , the oxygen fugacity and sulfur fugacity are coming down .

本文主要通过对橄榄石电导率的影响因素出发，包括温度、压力、铁镁比值、氧逸度等因素的影响和制约。

In this paper , we mainly discuss the electrical conductivity influential factors in the upper-mantle olivine conductivity , including to temperature , pressure , magnesium and iron ratio , oxygen fugacity , and so on .