CAJ | 학술논문

对喀拉通克和金川铜镍硫化物矿床的主、微量元素的含量及其地球化学特征进行分析对比，结合构造环境和岩石系列对岩浆作用和成矿作用进行了研究。喀拉通克岩体的主量元素特征属于拉斑玄武岩系列；富集大离子亲石元素，亏损高场强元素，显示出大陆地壳的特征；稀土元素表现为轻稀土富集，Sr、Nd同位素值指示岩浆源区为亏损的软流圈地幔。金川岩体的主量元素特征属于拉斑玄武岩和大洋中脊玄武岩(MORB)的岩石系列；富集大离子亲石元素，亏损高场强元素，显示地壳物质混染或者源区洋壳俯冲物质的残留；稀土元素表现为轻稀土富集；Sr、Nd同位素值指示岩浆源于富集地幔。运用三维地质建模的手段，对矿床的岩浆通道和深部边部成矿潜力进行了预测，以期对后期的找矿有所帮助。
대객랍통극화금천동얼류화물광상적주、미량원소적함량급기지구화학특정진행분석대비，결합구조배경화암석계렬대암장작용화성광작용진행료연구。객랍통극암체적주량원소특정속우랍반현무암계렬；부집대리자친석원소，우손고장강원소，현시출대륙지각적특정；희토원소표현위경희토부집，Sr、Nd동위소치지시암장원구위우손적연류권지만。금천암체적주량원소특정속우랍반현무암화대양중척현무암(MORB)적암석계렬；부집대리자친석원소，우손고장강원소，현시지각물질혼염혹자원구양각부충물질적잔류；희토원소표현위경희토부집；Sr、Nd동위소치지시암장원우부집지만。운용삼유지질건모적수단，대광상적암장통도화심부변부성광잠력진행료예측，이기대후기적조광유소방조。
According to the analysis and comparison with the content and geochemical char-acteristics of major and trace element from Cu-Ni sulfide deposits between Kelatongke and Jin-chuan,meanwhile,combing different tectonic setting and rock series of these two types of de-posits,we study their magmatic and mineralization processes. The results show that major ele-ment of Kalatongke belongs to the tholeiitic basalt system;incompatible trace element presents as enrichment of large ion lithophile elemen(LILE) and depletion of high field strength element (HFSE),suggesting that they are derived from the continental crust;the rare earth element (REE) presenting rich in light rare earth element (LREE),and there is no obvious Eu anoma-lies,Sr and Nd isotopes indicates that the magma source is depleted asthenosphere mantle. Ma-jor element of Jinchuan deposit belongs to the tholeiitic basalts and mid ocean ridge basalt (MORB) system;incompatible trace element presents as enrichment of LILE,depletion of HFSE,showing the magma suffers from contamination of crust materials or there are materials of subducted oceanic crust in the source;the ratio of N(La)/N(Nb) and N(Zr)/N(Nb) indicating its source is derived from EMI mantle;the REE presenting enriched in LREE,the ratio of N(La)/N(Yb),N(La)/N(Sm) and N(Gd)/N(Yb) presenting enriched in LREE;and there is no ob-vious Eu anomalies,Sr and Nd isotopes declaring magma derived from enriched mantle. And we also predicted the magma conduit and mineralization potential of these two ore deposits by 3D geological modeling,hoped it will useful for later period exploration.