月球哥白尼纪地层特征与地质演化研究

发布时间：2018-06-18 22:48

本文选题：月球哥白尼纪地层特征 + 哥白尼纪地层划分　；参考：《岩石学报》2016年01期

【摘要】：月球哥白尼纪地层是月球演化历史中最年轻的地层单元,哥白尼纪撞击坑数量较少,但其形成的哥白尼纪地层却是全球性的、非常显著的,大多学者普遍认为哥白尼纪基本没有岩浆活动与构造活动。通过对月球哥白尼纪地层进行地质填图,认为月球高地地区撞击坑辐射纹相对月海地区辐射纹发育更好,推测其原因可能为高地与月海岩石性质不同,或撞击的小天体体积、能量、物质特征以及撞击的角度、速度不同等原因导致的;哥白尼纪地层可划分为早哥白尼世地层(C_1)、中哥白尼世地层(C_2)和晚哥白尼世地层(C_3),通过对各世典型撞击坑的分析与研究,阐述了哥白尼纪各世地层的特征,为开展月球晚期撞击作用特征与效应的研究提供了资料。对哥白尼纪-爱拉托逊纪地层界限进行了初步探讨,提出月球年代学多源数据综合判别法方案,以重新厘定哥白尼纪年代下限。
[Abstract]:The Copernican strata of the moon are the youngest stratigraphic units in the history of the lunar evolution. The Copernican impact craters are few in number, but the Copernican strata are global and remarkable. Most scholars generally believe that the Copernican period basically has no magmatic activity and tectonic activity. Based on the geological mapping of the Copernican strata of the moon, it is considered that the radiation lines of impact craters in the highlands of the moon are better developed than those in the areas of the lunar sea. It is speculated that the reasons may be that the rock properties of the highlands and the lunar seas are different, or that the small body volume of the impact is the reason. Caused by differences in energy, physical characteristics and impact angles and velocities; The Copernican strata can be divided into early Copernican stratigraphy (Che 1), middle Copernican strata (C _ 2) and late Copernican strata (C _ (3). The characteristics of Copernican strata are expounded through the analysis and study of typical impact craters of each epoch. The data are provided for the study of the characteristics and effects of late lunar impact. In this paper, the stratigraphic boundary of Copernican-Altorisian period is preliminarily discussed, and a comprehensive discriminant scheme of multi-source data of lunar chronology is put forward in order to redefine the lower limit of Copernican age.
【作者单位】：中国地质科学院地质研究所;西安航天天绘数据技术有限公司;航天恒星科技有限公司;中国科学院地球化学研究所;中国地质调查局发展研究中心;民政部卫星减灾应用中心;
【基金】：科技部科技基础性工作专项(2015FY210500) 国家高技术研究发展计划“863”项目(2009AA122201) 国家自然科学基金重大项目(41490634) 中国科学院地球化学研究所领域前沿项目(Y2ZZ031000-02) 国家重大科技专项“高分辨率对地观测系统” 民用航天十二五预研项目联合资助
【分类号】：P184

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