CAJ | 학술논문

阳山金矿带内主要容矿岩石为泥盆系灰岩、千枚岩，灰岩裂隙中常发育晶形完好的方解石（冰洲石）晶簇，方解石晶体中发育明显的红色环带，利用扫描电镜及X-射线能谱成份分析结果显示红色环带方解石含微量的锰和铁，推断致色离子为Mn2+，和Fe3+；而Fe3+的存在指示环带生长于金矿的主成矿期；颜色交替环带状结构发育，指示主成矿阶段流体系统进入到温度周期性升降、压力逐渐释放的开放环境。
양산금광대내주요용광암석위니분계회암、천매암，회암렬극중상발육정형완호적방해석（빙주석）정족，방해석정체중발육명현적홍색배대，이용소묘전경급X-사선능보성빈분석결과현시홍색배대방해석함미량적맹화철，추단치색리자위Mn2+，화Fe3+；이Fe3+적존재지시배대생장우금광적주성광기；안색교체배대상결구발육，지시주성광계단류체계통진입도온도주기성승강、압력축점석방적개방배경。
Major ore-bearing rocks are Devonian limestone and phyllite in the Yangshan gold belt,and limestone frac-tures usually host calcite (Iceland spar) druses with well grown crystal forms. Red girdles are well developed in calcite crystals. SEM and X-ray energy spectrum analytical results indicated that red-girdle calcite contains trace Mn and Fe, and the color is presumably caused by Mn2+ and Fe3+,and Fe3+ suggests that girdle grew in the prime gold mineraliza-tion period. The development of color alternation girdle texture shows that fluid system in the prime mineralization time goes into an open environment with periodic up and down of temperature and gradual release of pressure.