CAJ | 학술논문

朋村-盘龙铅锌矿位于广西大瑶山西侧铜铅锌多金属成矿带南段, 矿体产于下泥盆统上伦组白云岩和官桥组白云岩NE向层间挤压破碎带中, 明显受层位、岩性、构造的联合控制, 矿石中矿物组合简单, 主要为闪锌矿、黄铁矿和方铅矿等. 对硫同位素、氢氧同位素、微量元素、稀土元素、有机质等矿床地球化学特征进行了研究: 铅锌矿石的δ34S值为-1.51‰ ~10.23‰,δDSMOW为-40‰~-24‰,δ18OH2O为-6.27‰~-1.78‰;矿石的∑REE较低, 为(3.565~12.43) ×10 -6; 矿石及围岩的有机质含量为3.24%~10.21%. 成矿物质来源以地层为主, 部分可能来自深源岩浆, 成矿流体为大气降水渗入形成的地下含矿热卤水,矿物包裹体数据显示均一温度为90~230 ℃, 矿床成因类型为中低温沉积-热卤水改造型铅锌矿.
붕촌-반룡연자광위우엄서대요산서측동연자다금속성광대남단, 광체산우하니분통상륜조백운암화관교조백운암NE향층간제압파쇄대중, 명현수층위、 암성、 구조적연합공제, 광석중광물조합간단, 주요위섬자광、 황철광화방연광등. 대류동위소、 경양동위소、 미량원소、 희토원소、 유궤질등광상지구화학특정진행료연구: 연자광석적δ34S치위-1.51‰ ~10.23‰,δDSMOW위-40‰~-24‰,δ18OH2O위-6.27‰~-1.78‰;광석적∑REE교저, 위(3.565~12.43) ×10 -6; 광석급위암적유궤질함량위3.24%~10.21%. 성광물질래원이지층위주, 부분가능래자심원암장, 성광류체위대기강수삼입형성적지하함광열서수,광물포과체수거현시균일온도위90~230 ℃, 광상성인류형위중저온침적-열서수개조형연자광.
Pengcun-Panlong Pb-Zn deposit occurs in the south of Pb-Zn polymetalic mineralication district in western Dayaoshan of Guangxi.The orebodies are found in the fracture zone of Lower Devonian Shanglun For-mation and Guanqiao Formation.It is jointly controlled by layers, lithologies and structure.The mineral assem-blage of the ore deposit is simple, most are sphalerite, galena, pyrite, etc.The lead-zinc ores δ34 S are from-1.51‰ to10 .23‰,δDSMOW from -40‰ to -24‰,δ18OH2O from -6.27‰ to-1.78‰.∑REE is lower , from 3.565 ×10 -6 to 12.43 ×10 -6.The organic matter of ore and wall rock are from 3.24% to 10.21%.Based on the sulfur isotopic, hydrogen-oxygen isotopic, trace elements, rare elements and organism analyses, it is concluded that the ore-forming substances mostly came from the strata and partially from the anatectic magma . Ore fluid was the hot brines which came from the meteoric water.Mineral inclusion data indicates that the hom-ogeneous temperature is 90-230 ℃.Geochemical data shows that genetic type of the Pb-Zn deposit ,ranges from low to medium sedimentation-hot brines reformed deposit.