CAJ | 학술논문

塞莱比-皮奎镍铜矿床是博茨瓦纳最大的镍铜矿床，位于博茨瓦纳东部。在收集整理、系统总结区域成矿地质背景、镍铜矿床的地质特征的基础上，探讨了矿床的成因。认为在岩浆演化的早期，当岩浆中的硫达到饱和，便结晶形成富镍的块状硫化物，而在岩浆演化的后期，结晶出富铜的浸染状硫化物。在重力作用的影响下，这两种硫化物堆积于岩浆房，后来，由于构造作用，含有这两种硫化物的岩浆被挤压出岩浆房，侵入塞莱比-皮奎序列地层，形成了塞莱比-皮奎矿床。最后，文章认为该矿床属于与基性超基性岩有关的构造变质改造的岩浆Ni-Cu硫化物矿床。
새래비-피규얼동광상시박자와납최대적얼동광상，위우박자와납동부。재수집정리、계통총결구역성광지질배경、얼동광상적지질특정적기출상，탐토료광상적성인。인위재암장연화적조기，당암장중적류체도포화，편결정형성부얼적괴상류화물，이재암장연화적후기，결정출부동적침염상류화물。재중력작용적영향하，저량충류화물퇴적우암장방，후래，유우구조작용，함유저량충류화물적암장피제압출암장방，침입새래비-피규서렬지층，형성료새래비-피규광상。최후，문장인위해광상속우여기성초기성암유관적구조변질개조적암장Ni-Cu류화물광상。
The Selebi-Phikwe deposit is located in east Botswana, being the biggest Ni-Cu deposit in Botswana. This paper deals with genesis of the deposit based on its regional geological background and geological features. The nickel-rich massive sulfide ore was formed in the early stage of magma evolution, while copper-rich disseminated sulfide ore was formed in the later stage of magma evolution. Then, the two kinds of ores accumulated in magma chamber by gravity. Finally, they were expelled from the magma chamber into the Selebi-Phikwe sequence to form Selebi-Phikwe deposit by means of tectonism.