CAJ | 학술논문

老君山矿田位于滇东南马关县和麻栗坡县境内，中寒武统田蓬组地层为本区主要出露地层，同时也是主要赋矿层位。主量元素分析显示老君山燕山期花岗岩富硅、富碱且 w（K2O）＞w（Na2 O），铝过饱和，具有A2型后造山陆缘花岗岩的特征，与个旧及白牛厂矿田燕山期花岗岩相似。在变质岩c-n-f三角图解上，寒武系变质岩样品均落在沉积岩区。本次研究的重要发现之一是赋矿层位中的纹层状和条带状硅质岩，经分析，其稀土元素及微量元素特征与热水沉积硅质岩相似。老君山矿田的形成主要经历了3个成矿热事件，即寒武纪热水沉积、印支期区域变质作用改造和燕山期岩浆-热液叠生改造，具多期次递进成矿的特征。
로군산광전위우전동남마관현화마률파현경내，중한무통전봉조지층위본구주요출로지층，동시야시주요부광층위。주량원소분석현시로군산연산기화강암부규、부감차 w（K2O）＞w（Na2 O），려과포화，구유A2형후조산륙연화강암적특정，여개구급백우엄광전연산기화강암상사。재변질암c-n-f삼각도해상，한무계변질암양품균락재침적암구。본차연구적중요발현지일시부광층위중적문층상화조대상규질암，경분석，기희토원소급미량원소특정여열수침적규질암상사。로군산광전적형성주요경력료3개성광열사건，즉한무기열수침적、인지기구역변질작용개조화연산기암장-열액첩생개조，구다기차체진성광적특정。
Laojunshan ore field is located in Maguan county and Malipo county in southeast of Yunnan province. The Tianpeng Group in the middle Cambrian is widely exposed in the region and is also the main host rock. Analysis results of the main elements show that the Laojunshan granite is rich in Si and alkali (w (K2 O )>w(Na2 O)),and supersaturated in Al.The granite has the feature of post-orogenic continental margin granite which is named as A2 type.The Metamorphic samples from Cambrian fell on the Sedimentary rocks region in c-n-f triangular diagram.One of the most important findings is the discovery of the laminated and stripped silicolite which has similar features of microelements and rare earth elements as those of hydrothermal sedimentary silicolite.The formation process of Laojunshan ore field is divided into three thermal events:hydrothermal sedimentary mineralization in Cambrian,regional metamorphism transforming in Indosinian and magmatic -hydrothermal telescoping -transforming mineralization in Yanshanian,which act as progressive mineralization.