湖北大冶灵乡铁矿接触带构造与成矿  

Contact Zone Structure and Metallogenesis of Lingxiang Iron Deposit in Daye,Hubei Province

作　　者：夏金龙[1,2] 胡明安[3] 张旺生[4] 徐伯骏[3] 杨振[3] 王磊[1,2] 

机构地区：[1]中国地质大学研究生院,武汉430074 [2]武汉地质矿产研究所,武汉430205 [3]中国地质大学资源学院,武汉430074 [4]中国地质大学地球科学学院,武汉430074

出　　处：《地质科技情报》2010年第6期41-44,共4页Geological Science and Technology Information

基　　金：国土资源部地质勘查司项目(2004007)

摘　　要：大治灵乡铁矿为鄂东南矿集区典型的矽卡岩型矿床,矿体受大理岩与闪长岩接触带构造控制明显。灵乡矿区矿床大体呈"井"字形分布,自西向东可分为西、中、东3个矿带。利用灵乡矿区35幅勘探线剖面数据,基于三维建模软件GeoMine3D建立了灵乡铁矿床接触带和矿体的三维可视化模型。结果表明灵乡矿区东矿带为面状接触带,西矿带为囊状接触带,中矿带为介于囊状接触带与面状接触带之间的过渡型接触带。囊状接触带是一种圈闭构造,其成矿地带较为分散;面状接触带成矿部位相对集中、规律性明显,主要位于接触带的凹部和上部;过渡型接触带控制的矿体主要沿接触带分布。研究表明囊状接触带有重要的成矿控矿意义。Lingxiang deposit is a typical skarn-type iron deposit,whose ore bodies are obviously controlled by the contact zone of marble and diorite.With three ore belts in the deposit from the west to the east,its ore bodies are distributed regularly,just like a lattice.In this study,35 exploration sections data are collected and the 3D visualization model of the contact zone and ore bodies is established by using GeoMine3D software.The results show that the contact zone between the diorite and the marble is ＂plane shape contact zone＂ in the east ore belt,＂capsule shape contact zone＂ in the west ore belt,and ＂transition shape contact zone＂ linked with ＂capsule shape contact zone＂ and ＂plane shape contact zone＂ in the middle ore belt.The metallogenic zone related to the ＂capsule shape contact zone＂ controlled by the faults is more dispersed.However,the ore bodies related to the ＂plane shape contact zone＂ are spread more regularly,lying in the concave part,the top of interface.While the ore bodies related to the ＂transition shape contact zone＂ are spread around the interface randomly.The ＂capsule shape contact zone＂ is more favorable for mineralization.

关 键 词：接触带构造 三维可视化 矽卡岩型矿床 灵乡铁矿 

分 类 号：P618.31[天文地球—矿床学]