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
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
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
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
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。
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。
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
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。
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。
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。