CAJ | 학술논문

野马泉大型矿床是近年来在东昆仑祁漫塔格地区发现的与侵入岩有关的矽卡岩型铁铜多金属矿。利用锆石 LA-ICP-MS U-Pb 法测得野马泉花岗闪长岩的形成年龄为（392.4±2.2）Ma，属于华力西期。前人利用辉钼矿 Re-Os 法，获得矽卡岩型铜钼多金属矿石和矽卡岩型钼矿石的等时线年龄分别为（225.0±4.0）Ma（n ＝7，MSWD ＝0.24）和（230.1±4.7）Ma（n ＝5，MSWD ＝0.12）、在多期热液叠加、多期成矿作用中，早期成矿的热液很可能是野马泉花岗闪长岩（392.4±2.2 Ma）提供的。由于该区有较多的中酸性岩体存在，它们可能为铁铜多金属矿的主要来源，因此确定这些侵入体的形成年龄，对于在该区寻找矽卡岩型铁铜多金属矿具有重要的理论和实践意义。
야마천대형광상시근년래재동곤륜기만탑격지구발현적여침입암유관적석잡암형철동다금속광。이용고석 LA-ICP-MS U-Pb 법측득야마천화강섬장암적형성년령위（392.4±2.2）Ma，속우화력서기。전인이용휘목광 Re-Os 법，획득석잡암형동목다금속광석화석잡암형목광석적등시선년령분별위（225.0±4.0）Ma（n ＝7，MSWD ＝0.24）화（230.1±4.7）Ma（n ＝5，MSWD ＝0.12）、재다기열액첩가、다기성광작용중，조기성광적열액흔가능시야마천화강섬장암（392.4±2.2 Ma）제공적。유우해구유교다적중산성암체존재，타문가능위철동다금속광적주요래원，인차학정저사침입체적형성년령，대우재해구심조석잡암형철동다금속광구유중요적이론화실천의의。
Yemaquan large-scale deposit,found in recent years in the Qimantage area,Eastern Kunlun,is re-lated to intrusive rock and is skarn type iron copper polymetallic deposit.Using zircon LA-ICP-MS U-Pb meth-od,the authors measured the Yemaquan granodiorite formation age for (392.4 ±2.2)Ma,which belongs to the Variscan Stage.Previous use of molybdenite Re-Os method obtained isochron age of skarn type copper-molybde-num polymetallic ores and skarn type molybdenum ores which are (225.0 ±4.0)Ma (n =7,MSWD =0.24) and (230.1 ±4.7)Ma (n =5,MSWD =0.12).In the stage of hydrothermal superimposition,in mineraliza-tion periods,early metallogenic hydrothermal is likely to be provided by Yemaquan granodiorite (392.4 ±2.2 Ma).Since there are much acidic rocks in this area,the intermediate-acid rock mass may be the main source for iron-copper polymetallic deposit;therefore,the intrusive body formation age,in the search for skarn type iron-copper polymetallic deposit,not only has important theoretical significance,but also has important practical significance.