陕南略阳县白雀寺基性杂岩铁-镍成矿条件分析

Analysis of iron-nickel metallogenic conditions of Baiquesi basic complex in Lueyang County,southern Shaanxi Province

在阐述勉略宁三角区成矿地质背景的基础上,重点论述了略阳县白雀寺基性杂岩体的地质及岩石学特征、物化探异常特征及钛磁铁、铜镍矿化特征,对比研究了煎茶岭镍矿床、新疆香山西钛铁-铜镍矿床、四川力马河铜镍硫化物矿床的成矿地质条件。从岩浆成矿系统"全位成矿"与"缺位预测"的角度,综合分析认为白雀寺基性杂岩体具备形成岩浆型钛磁铁矿与铜镍硫化物矿共生复合型矿床的有利地质条件。

Based on the description of the ore-forming geological background of Mianluening triangle area,this study is focused on geological and petrological characteristics,geophysical and geochemical anomalies,titanium magnet and copper-nickel mineralization characteristics of the Baiquesi basic complex in Lueyang County,compared with the metallogenic geological conditions of the Jianchaling nickel deposit,the Xiangshan-West titanium-copper-nickel deposit in Xinjiang,and the copper-nickel sulfide deposit in Sichuan. From the perspective of"total ore-forming"and"absence prediction"in magmatic metallogenic system,the comprehensive analysis shows that the Baiquesi basic complex has the favorable geological conditions of forming magma-type titanomagnetite and copper-nickel sulfide ore symbiotic composite deposits.