【作者】 李得成；

【导师】 周军；

【作者基本信息】 长安大学 ， 矿物学、岩石学、矿床学， 2007， 硕士

【摘要】 阿热勒托别地区地处新疆青河县北部,属西伯利亚板块西南缘,主体位于阿尔泰稀有、白云母、金铜成矿带—喀纳斯铜成矿亚带上。其西南角涉入额尔齐斯金成矿亚带范围。是寻找以钨、锡、钼、铜、铅、锌、金、银等金属矿产资源的有利地段。调查区自然条件艰苦、野外工作不便。本次研究综合分析地质、化探、遥感等多元找矿信息,圈定找矿靶区,达到减少野外工作的目的,工作过程和成果如下:1、通过对调查区地质特征及成矿规律的研究,确立地质找矿标志,将调查区按网格划分为7727个单元。计算每个单元的信息量总和,绘制找矿标志信息量等值线图。2、对1:5万化探原始数据进行预处理,剔除极值,进行相关分析、R型—聚类分析分析,并以传统化探处理方法(平均值+n×标准差)确定异常下限,绘制各元素含量等值线图。3、依据遥感成像原理和Landsate 7多光谱数据的特点,用主成分分析、阈值分割等方法对调查区ETM+图像进行矿化蚀变信息提取。4、根据多元找矿信息提供的线索圈定靶区,并进行地质论证。更多还原

【Abstract】 Areletuobie area is located in north of Qinghe County Xinjiang autonomous region. Its Structure position belongs the southwest edge of the Siberia tectonic plate, the main area is located on the Mineralization belt which has Rare metal、muscovite、Gold-Copper Ore and the Mineralization subbelt of Kanas Copper. Areletuobie area’s Southwest corner entered into the Erchis gold Mineralization sunbelts. It is very well area for seek the metal mineral resource which contain tungsten, tin, molybdenum, copper, lead, zinc, gold, silver and so on.The natural condition is very difficulty and the fieldwork is inconvenient in the investigation area. For reduced the field work, this research analyzed Multi-mineral finding prospecting information in synthesis, such as geology characteristic, geochemical prospecting, and the remote sensing and so on, and selected the prospecting target area. The work process and the achievement as follows:1. Through to research the investigation area’ geology characteristic and the mineralization rule, the geology prospecting symbol was established. According to the grid division method, the investigation area had been divided into7727 units. The total information of each unit was been calculated and drew the Isogram of prospecting symbol information.2. Dealt with the crude geochemical exploration data andrejects the extreme value. Then the correlation and R-type cluster analysis were analyzed. The tradition geochemical exploration (mean + n×standard deviation) method determines the lowest abnormal. The content Isogram of every element was drawn at last.3.Based on the principle of the remote sensing imagery and the characteristic of the Landsate7 multi- spectra data, the mineralization alteration information had been extracted through the method of PCA (principle component analyse) or classified by thresholds for the ETM+picture in the investigates area.4. According to the clue which provided by Multi-mineral finding information, the prospecting target area has been selected, then made a proof of geology.更多还原