基于分形理论的成矿空间分析——以新疆东天山康古尔塔格金矿带为例  

Metallogenic Spatial Analysis Based on Fractal Theory:A Case Study of the Kangguertage Gold Ore Belt in Xinjiang

作　　者：张建[1,2] 王登红[1] 孙宝生[3] 陈郑辉[1] 

机构地区：[1]中国地质科学院矿产资源所,北京100037 [2]国土资源部成矿作用与资源评价重点实验室,北京100037 [3]新疆大学,新疆乌鲁木齐830046

出　　处：《地球学报》2009年第1期58-64,共7页Acta Geoscientica Sinica

基　　金：中国地质调查局<中国成矿体系综合研究>(编号:1212010733803);<我国重要矿产和区域成矿规律研究>(编号:1212010535804);"十一五"国家科技支撑计划重点项目<新疆大型矿集区预测与勘查开发关键技术研究>(编号:2006BAB07B00);中央级公益性科研院所基本科研业务费资助项目<新疆萨尔托海地区铬铁矿资源潜力评价>(编号:K08015)联合资助。

摘　　要：利用分形理论中的盒式分维探究新疆东天山康古尔塔格金矿带构造及金矿床的空间分布,得出两者在空间上具有双重分形的特点。结合前人的研究成果,认为研究区在区域上是韧性的剪切带,而在局部体现为脆性地质体,金矿的分布在一定范围是随机的,但在区域上受韧性剪切带的控制,呈带状或线状分布,更为重要的是线性构造与金矿可能是同一时期同一构造运动的结果。在区域上,脆韧性剪切转换带是金矿的有利成矿部位。Using the box-counting dimension method of fractal theory, the authors investigated the spa- tial distribution of structures and gold deposits in the Kangguertage gold ore belt within the East TianShan Mountain of Xinjiang and have reached the conclusion that they have double-fractal characteristics. In combination with previous researches, the authors hold that the study area is regionally a ductile shear zone but locally a britele geological body. The distribution of gold deposits is random in a limited area but is regionally controlled by the ductile shear zone and assumes banded or linear arrangement. It should be pointed out that the banded structure and the gold deposits might be products of the same geological period and the same tectonic movement. The transitional place of the ductile-brittle shear zone is the favorable position for gold mineralization.

关 键 词：分形理论 成矿空间分析 康古尔塔格金矿带 东天山 新疆 

分 类 号：P612[天文地球—矿床学]