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1)  alteration [英][,ɔ:ltə'reɪʃn]  [美]['ɔltə'reʃən]
蚀变
1.
The Alteration Characteristics and Genesis Analysis of XianFeng NorthMountain Gold Mine in Heilongjiang Province;
黑龙江省虎林市先锋北山金矿床蚀变特征及成因探讨
2.
Extracting method for typical absorption mineralogical alteration based on Hyperion data;
基于Hyperion数据的岩矿蚀变信息的特征峰提取法
3.
Hyperspectral model for information of uranium mineral alteration technique based on mathematical statistics analysis;
基于多元统计技术的铀矿蚀变信息高光谱模型
2)  alteration [英][,ɔ:ltə'reɪʃn]  [美]['ɔltə'reʃən]
蚀变;变更
3)  wallrock alteration
围岩蚀变
1.
Discussion on the relationships between wallrock alterations and mineralizations in Bailashui tin mine in Qitianling,Hunan Province;
湖南骑田岭白腊水锡矿围岩蚀变与矿化关系浅析
2.
It is shown shat wallrock alteration is accompanied with each stage of Mo mineralization,and alteration types are different with different mineralization epoch,mineralization stage,and wallrocks.
研究表明,围岩蚀变始终伴随着钼成矿作用的每个阶段,且不同的成矿期和成矿阶段、不同的围岩,其蚀变类型不同;矿床蚀变分带明显,由岩体中心向外侧依次为钾长石化—硅化带(强蚀变带)、硅化—绢英岩化带(弱蚀变带)、硅化—青磐岩化带,强度由中心向外围逐渐减弱,其蚀变作用的强弱与钼矿体的品位高低相对应,确定硅化和钾长石化是该区最有效的找矿标志之一。
3.
Relationship among W mineralized concentration,ore-forming fluid evolution,wallrock alteration and elements migration are preliminary revealed.
文章以杨金沟白钨矿床主要赋矿蚀变围岩为研究对象,通过对不同种类蚀变岩石中主要氧化物和成矿元素特别是W、Mo和As的迁移和富集特征进行详细分析,结合近矿蚀变围岩稀土元素组成及其变化特征研究,初步揭示了杨金沟白钨矿床中钨矿化富集、成矿流体演化与围岩蚀变和元素组分迁移的关系。
4)  wall-rock alteration
围岩蚀变
1.
Relationship between wall-rock alteration and gold mineralization of Huanxiangwa deposit,Henan Province;
河南萑香洼金矿床围岩蚀变与金矿化的关系
2.
The geologic features of Haigou Au deposit are briefly introduced based on geologic settings,ore-control factors,wall-rock alteration,mineralization and enrichment regularities.
本文从地质背景、控矿因素、围岩蚀变、矿化富集规律等方面扼要介绍了海沟金矿床的地质特征,并通过构造—岩浆活动、热液形成及演化、成矿物质的富集和沉淀等方面规律阐述了海沟金矿床的形成机制。
3.
By researching the wall-rock alteration and the relations of the gold mineralization in Shishudi gold deposits,it is found that silicification,pyrite,and K-feldspar are most closely related with gold mineralization in the alteration types.
通过对柿树底金矿床围岩蚀变特征与金矿化关系的研究发现:在蚀变类型中硅化、黄铁矿化、钾长石化与金矿化关系最为密切;蚀变演化划分为三个时期,三个时期根据时间与空间关系划分为四个阶段,其中第二阶段石英-钾长石-黄铁矿化阶段是主矿化阶段;围岩蚀变自中心向外划分为三个蚀变矿物组合带,其中核心带矿化蚀变岩带与金矿化关系最为密切。
5)  alteration [英][,ɔ:ltə'reɪʃn]  [美]['ɔltə'reʃən]
矿化蚀变
1.
In the end,alteration information was extracted.
本研究运用SVM提取矿化蚀变信息,选择青海黄南州吉地地区作为典型研究区,首先选取训练样本,然后求解最优超平面(即找出支持向量),进而确定决策函数,最后泛化推广识别其它待识别的样本。
2.
The analysis of the characteristics of its spatial distribution,deformation and alteration shows that this structure is formed as the result of emplacement of pluton intrusion and regional tectonic stress.
根据接触带不同成矿区段的空间展布特点、构造变形和矿化蚀变特征,认为该区接触带构造是岩体侵位和区域应力双重作用的结果,并首次将该侵入接触带构造划分为3种类型,即侵入接触-断裂复合型、双侵入接触-断裂复合型以及捕虏体接触-断裂复合型。
6)  altered mineral
蚀变矿物
1.
Using absorbed value feature of known mineral criterion for reference,utilizing Landsat 7 ETM remote images and features of altered mineral spectrum from USGS,valuable alteration mineralization information are extracted by comparison of spectrum similarity.
利用该区域的Landsat7 ETM遥感影像和标准光谱库中的特征蚀变矿物光谱为基本数据,借鉴已知矿物标准中的吸收谷特征,应用光谱特征匹配技术进行吸收谷谱区间和吸收谷深度对比,通过比较两者的相似性,达到提取蚀度矿物的目的,提取出许多有价值的似蚀变带遥感信息。
2.
Based on the principle of near-infrared spectrum absorption by altered minerals,optimum measurement wavelength ranges for altered minerals were fixed and qualitative and quantitative analysis for altered minerals in rocks by near infrared spectrometer were accomplished with the mathematics and spectrum learning methods.
基于岩石中蚀变矿物对近红外光谱的吸收原理,确定测量蚀变矿物最佳波长范围,采用数学和谱图学习方法对岩石中蚀变矿物进行定性和定量分析。
补充资料:蚀变钛铁矿
分子式:
CAS号:

性质:钛铁矿的高度蚀变产物,又称蚀变钛铁矿(weathered ilmenite)。化学式TiO2·nH2O,TiO2。最高含量约94%(经验值),密度3.5~4.5g/cm3。莫氏硬度4~5.5级。颜色为黄灰色到褐色,它实际上不是一种独立的矿物,而是隐晶质锐钛矿物、金红石、板钛矿、赤铁矿(偶尔还有榍石)的混合物,贮量不大,主要产于澳大利亚。可与钛铁矿、金红石混合成TiO2含量60%~70%的混合矿,用于生产氯化法二氧化钛颜料等。 

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