摘要
月球Aristarchus地区是月球正面反照率最高的地区.它具有丰富的物质类型分布,包括月球最大规模的火成碎屑沉积物,非常年轻的Aristarchus撞击坑溅射物以及环绕Aristarchus高原的月海玄武岩分布,存在火山、撞击构造等地质作用,具有重要研究价值.本文利用来自嫦娥一号干涉成像光谱仪、Clementine UVVIS相机、Lunar Prospector伽马谱仪等月球探测数据,综合分析Aristarchus地区的元素分布状况、矿物与岩石光谱特征、岩石类型分布特征.研究表明,Aristarchus地区的光谱特征和物质类型极为丰富,包括火成碎屑沉积物、月海玄武岩、高地斜长岩、KREEP岩以及演化程度较高的碱性斜长岩等特殊岩石类型,为月球地质学研究中不可多得的案例区域,因而可作为我国探月工程三期(嫦娥五号或六号)月球取样返回候选地区之一.
The Aristarchus region is the brightest part for the lunar nearside. It includes diverse material types, such as the largest amount of volcanic pyroclastic deposits, very young impact ejecta from the Aristarchus crater and mare basalts surrounding the Aristarchus plateau. This region also experienced complex geologic processes including volcanic, impact and tectonic activities. In this study, we combine the Chang＇E-1 IIM, Lunar Prospector and Clementine UVVIS datasets to investigate the elemental distribution, mineral properties and rock types in this region. The Aristarchus region has the most variable materials including volcanic pyroclastic deposits, mare basalts, highland anorthosite, KREEP and some rare evolved rock types, which makes it one of the most scientific valuable regions for the future lunar missions （e.g., the third phase of Chinese Lunar Exploration Program）.
出处
《中国科学：物理学、力学、天文学》
CSCD
北大核心
2013年第11期1403-1410,共8页
Scientia Sinica Physica,Mechanica & Astronomica
基金
国家自然科学基金(批准号:11003012
41373068)
国家自然科学基金天文联合基金(编号:U1231103)
山东省自然科学基金(编号:ZR2011AQ001)
山东大学自主创新基金(编号:2013ZRQP004)资助项目
关键词
月球探测
成分
岩石类型
成像光谱
lunar exploration, composition, rock type, imaging spectroscopy
