摘要
新路锡矿田岩石、矿石及锡石中稀土元素的地球化学研究结果表明,该区燕山晚期花岗岩的稀土配分模式与陆壳改造型花岗岩一致;中酸性脉岩类的稀土配分模式与地壳同熔性花岗岩类相当;白面山矿床与中酸性岩类具密切的成因联系;石门矿床成矿物质与中酸性岩类只有空间伴生关系,没有成因联系;六合坳锡矿床中锡石的稀土配分模式除继承了簸箕岭岩体的稀土元素配分模式外,还有Er负异常出现。
Results of research on the geochemistry of REE distribution andabundance within rock, ore and cassiterite in the Xinlu tin orefield showthat REE distribution patterns of Late Yenshanian granites in this regionare corresponding to those of continental crust-transformation type grani-toids; REE distribution patterns of intermediate-acidic vein rocks correspondwith those of syntexis type granitoids; Baimianshan ore deposit is geneti-cally and closely related to intermediate-acidic granitoids; Shimen oredeposit possesses ore-forming substances which are only spatially associatedwith intermediate-acidic granitoids and are not genetically related to those;REE distribution patterns of cassiterite in the Liuheao tin deposit not onlyinherited those of Bojiling granite body, but also possessed Eu negativeanomaly.
关键词
锡矿
矿田
稀土元素
地球化学
REE
geochemistry
tin deposit
Guangxi
Xinlu
