摘要
方解石是广西大厂锡多金属矿床矿石中重要的脉石矿物。对不同产状矿体中方解石的REE地球化学特征研究表明:方解石在不同类型矿体中REE含量、有关参数和稀土配分模式等均变化较大,但在地球化学特征上具有连续变化规律,显示同源不同阶段的产物;矿床的成矿流体具有岩浆来源的特征,不排除地幔来源的可能;成矿环境表现为还原向氧化环境的变化。
Calcite is a dominant gangue mineral in the Dachang tin-polymetallic deposit.REE geochemical characteristics of calcites from different tin-polymetallic orebodies indicate that the REE content,relevant parameters and REE distribution patterns of calcites from different types of orebody vary significantly,but that their REE geochemical characteristics show continuous variation,indicating that they are of the same origin but formed in different stages.The ore fluids in the deposit have the features of magmatic origin,but the possibility of the mantle origin cannot be ruled out the possibility of mantle origin.The ore-forming environment shows the change from the reducing to oxidizing ones.
出处
《岩石学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第10期2493-2503,共11页
Acta Petrologica Sinica
基金
"全国重要矿产和区域成矿规律研究"项目(1212010633903)
国家危机矿山接替资源勘查项目(200545022)资助成果。
关键词
锡多金属矿床
方解石
稀土元素
成矿物质来源
Tin-polymetallic deposit
Calcite
Rare earth element(REE)
Origin of ore-forming material
Daehang
