CAJ | 학술논문

王仙岭岩体由两期花岗岩组成,早期花岗岩发生钨锡矿化,晚期花岗岩无矿化显示。本文对两期花岗岩主量、稀土、微量元素特征、形成构造环境及其与成矿关系等方面进行对比研究,认为成矿花岗岩与不成矿花岗岩主要区别在于早期花岗岩富含电气石,B、F、Cs含量高,其岩浆分异演化程度高,电气石中Fe含量约占8.99%,F含量约占2.10%,而晚期花岗岩不含电气石或电气石含量很少,岩浆演化程度相对低。深层原因为王仙岭早期花岗岩形成软流圈地幔上涌峰期,壳-幔作用强烈,深源流体丰富,而王仙岭晚期花岗岩形成软流圈地幔上涌峰期之后,壳-幔作用较弱,成矿作用强度可能与壳-幔作用强度呈正相关性。
왕선령암체유량기화강암조성,조기화강암발생오석광화,만기화강암무광화현시。본문대량기화강암주량、희토、미량원소특정、형성구조배경급기여성광관계등방면진행대비연구,인위성광화강암여불성광화강암주요구별재우조기화강암부함전기석,B、F、Cs함량고,기암장분이연화정도고,전기석중Fe함량약점8.99%,F함량약점2.10%,이만기화강암불함전기석혹전기석함량흔소,암장연화정도상대저。심층원인위왕선령조기화강암형성연류권지만상용봉기,각-만작용강렬,심원류체봉부,이왕선령만기화강암형성연류권지만상용봉기지후,각-만작용교약,성광작용강도가능여각-만작용강도정정상관성。
Wangxianling granite consists chiefly of two period granites.The early period granite takes place tungsten-tin mineralization which is related to Hehuaping tin-polymetallic deposit and the later period granite does not show mineralization.The comparative study on the petrochemistry,trace elements,genesis and mineralization feature about the two period granites in this paper argues that the difference between the early period granite and the later one is as below：the early period granite has the high content of B,F,Cs is rich in tourmaline which is rich in the content of Fe（about 8.99%） and F（about 2.10%） and processed strong magmatic differentiation;however,the later one does not have tourmaline or is poor in tourmaline so that its magmatic differentiation degree is lower.The deep-seated reason about the mineralization is that the early period granite was formed in the setting of the peak of upwelling of asthenosphere mantle that crust-mantle interaction was strong and the later period granite was formed after the peak so that crust-mantle interaction was relatively weaker.The strength of mineralization is correlated positively with the strength of crust-mantle interaction.