CAJ | 학술논문

月球陨石是遭受小行星撞击从月球飞溅出来并陨落到地球上的岩石，是研究月球物质成分和演化历史的重要对象。自1979年发现和确认了第一块月球陨石（ ALHA 81005）之后，至今已收集到165块月球陨石。虽然Apollo计划和Luna计划采集了382 kg月球样品，但由于飞船登陆采样位置有限，月球陨石对了解月球的物质组成和演化历史提供了重要的样品补充。除了少量具有结晶结构的岩石类型以外，大部分月球陨石为碎屑岩，这些碎屑岩主要有三类：高地斜长质角砾岩、月海玄武质角砾岩和高地斜长质-月海玄武质混合角砾岩。根据岩性分析，尤其是岩屑，月球陨石中存在斜长岩、玄武岩、辉长岩、橄长岩、苏长岩、克里普（ KREEP）岩。在月球陨石中逐渐发现了不少克里普岩组分，其中SaU169中VHK的富KREEP成分代表了月球中可能存在的原始富KREEP岩浆源，这为探索月球中克里普岩成因提供了重要信息。据研究，现已发现了6对溅射成对月球陨石，同时，还发现了9个可能的月球陨石来源区域。后成合晶现象的发现对月球表面冲击变质作用研究具有重要的意义。此外，月球陨石同位素年龄和稀有气体成分研究不但获得了月球岩石结晶和月壳形成过程的信息，同时也获得了月球表面的冲击变质历史信息。
월구운석시조수소행성당격종월구비천출래병운락도지구상적암석，시연구월구물질성분화연화역사적중요대상。자1979년발현화학인료제일괴월구운석（ ALHA 81005）지후，지금이수집도165괴월구운석。수연Apollo계화화Luna계화채집료382 kg월구양품，단유우비선등륙채양위치유한，월구운석대료해월구적물질조성화연화역사제공료중요적양품보충。제료소량구유결정결구적암석류형이외，대부분월구운석위쇄설암，저사쇄설암주요유삼류：고지사장질각력암、월해현무질각력암화고지사장질-월해현무질혼합각력암。근거암성분석，우기시암설，월구운석중존재사장암、현무암、휘장암、감장암、소장암、극리보（ KREEP）암。재월구운석중축점발현료불소극리보암조분，기중SaU169중VHK적부KREEP성분대표료월구중가능존재적원시부KREEP암장원，저위탐색월구중극리보암성인제공료중요신식。거연구，현이발현료6대천사성대월구운석，동시，환발현료9개가능적월구운석래원구역。후성합정현상적발현대월구표면충격변질작용연구구유중요적의의。차외，월구운석동위소년령화희유기체성분연구불단획득료월구암석결정화월각형성과정적신식，동시야획득료월구표면적충격변질역사신식。
Lunar meteorites are rock samples from the Moon that have experienced a shock event resulting from impact by an asteroid that results in the ejection of the rock from the Moon ’ s surface and its landing on Earth .Since the first lunar meteorite ( ALHA 81005) was discovered and identified in 1979, a total of 165 lunar meteorites have been found.Additionally, the Apollo and Luna projects returned 382 kg of lunar samples; however, according to the collection sites are limited , lunar meteorites still provide important supplementary information on the composition and evolutionary history of the Moon .Except for a small amount of unbrecciated crystalline rocks , the majority of lunar meteorites are breccias that consist mainly of highland anorthositic breccias , mare basaltic breccias and min-gled breccias .Petrographic analyses of clasts within lunar meteorites show that they contain a wide variety of rocks including anorthosites , basalts, gabbros, troctolites, norites and KREEP rocks .More and more KREEP compo-nents are found in lunar meteorites .For example, the VHK KREEP clasts in meteorite SaU 169 may represent the urKREEP magma;such KREEP components provide important information on the origin of the KREEP .Research has identified six launching pairs and nine possible launching sites on the Moon .The discovery of the lunar sym-plectites also provides evidence for shock metamorphism on the lunar surface .Furthermore , the isotopic ages and the composition of noble gases not only provide important information on the process of crystallization of lunar rocks and the formation of lunar crust , but also give insight into the history of shock events on the lunar surface .