月面克里普岩成分特征及REE等资源开发利用前景

克里普岩(KREEP)最早发现于Apollo-12样品，后来在所有返月样品中都发现3克里普岩碎片，尤其以Apolio-12和Apolio-14着陆点样品中最多，因其富含元素K1REE和P而被称之为KREEP．克里普岩在月面上的分布极为重要，不但因其对月壳形成期间及形成以后的月球的演化具有重要的意义，而且由于克里普岩中富含REE等重要资源性元素，被认为可能是除钛铁矿外最重要的月球矿产资源储存库．本文在综合已有探测资料和研究成果的基础上，通过克里普岩的化学成分与矿物组成特征，Th在风暴洋区丰度的异常特征，以及克里普岩中Th与REE相关关系的分析，探讨了KREEP岩石在月面上的分布区域，进而对月球REE资源的开发利用前景进行了初步评估．

COMPOSITION CHARACTERISTICS OF KREEP ROCKS AND UTILIZATION PROSPECT OF REE

KREEP rocks with high contents of K, REE and P were first recognized in Apollo 12 samples, and confirmed later that there were KREEP rock fragments in all of Apollo samples particularly in Apollo-12 and 14 samples. The distribution of KREEP rocks on the lunar surface is very important not only for studying the evolution of the moon, but also for evaluating the utilization prospect of REE in KREEP rocks. Based on previous studies and lunar exploration data, the authors analyse the chemical and mineral characteristics of KREEP rocks, the abundance of Th on lunar surface, the correlation between Th and REE of KREEP rocks in abundance, study the distribution region of KREEP rocks on the lunar surface, and further evaluate the utilization prospect of REE in KREEP rocks.