月球第谷撞击坑区域数字地质填图及地质地貌特征  

The digital geological mapping and geological and geomorphic features of Tycho Crater of the Moon

作　　者：王梁[1,2] 丁孝忠[1] 韩同林[1] 韩坤英[1] 庞健峰[1] 许可娟 刘建忠[3] 

机构地区：[1]中国地质科学院地质研究所,北京100037 [2]中国地质大学(北京)地球科学与资源学院,北京100083 [3]中国科学院地球化学研究所,贵州贵阳550002

出　　处：《地学前缘》2015年第2期251-262,共12页Earth Science Frontiers

基　　金：国家高技术研究发展计划"863"项目(2009AA122201);中国科学院地球化学研究所领域前沿项目"月球典型建造与编图标识与规范研究"(Y2ZZ031000-02);国家自然科学基金项目(41373068);国家自然科学基金重大项目(41490634)

摘　　要：第谷撞击坑,位于月球南半球的正面,中心位置经纬度为S43°23′40.78″,W11°10′01.02″,具有醒目壮观的辐射纹地貌特征。文中应用多源数据对12个哥白尼纪典型月坑进行统计分析、影像特征的详细解释和对比研究,提出将哥白尼纪划分为早哥白尼世(C1)、中哥白尼世(C2)及晚哥白尼世(C3),并对第谷月坑进行综合数字地质填图,编制了第谷月坑区域地质图和岩石类型分布图。第谷月坑在撞击时由于大量能量的释放或后期火山岩浆活动形成了各种地质地貌,可分为大型地质地貌与小型地质地貌。大型地貌包括辐射纹堆积、坑缘堆积、弧形断块堆积、坑底中心平原堆积与陨石残体中央峰堆积等所形成的地质地貌类型;小型地貌包括堆积、侵蚀和岩浆作用形成的各种地质地貌类型。The Tycho Crater is located in the nearside of southern hemisphere of the Moon, the latitude is S43°23′40.78″ and longitude is W11°10′01.02″, which has the most heakltiful and spectacular radial rays of the Moon. In this study, we proposed the division of the Copernican Period into the Early Copernican Epoch （C1）, the Middle Copernican Epoch （C2） and the Late Copernican Epoch （C3） by the detailed explanation and comparative research of the characteristics and the statistical analysis of 12 Copernican craters by multi-source data, and compiled the geological map and the rock type map of the Tycho Crater and the adiacent area by comprehensive digital geological mapping. The Tycho Crater have formed a variety of geological and geomorphic features due to the large energy releasing when the Tycho Crater have been impacted, or when the post-volcanic rnagmatic activity occurred, these features may be divided into large-scale and small-scale landforms. Large-scale landforms include the landforrns formed by the radial ray accumulation, the crater edge accumulation, the arcuate fault block accumulation, the center plain accumulation and the central peak accumulation. Small-scale landforms include geological and geomorphic forms formed by accumulation, erosion and magmatic action.

关 键 词：月球 哥白尼纪 第谷月坑 数字地质填图 地质地貌特征 

分 类 号：P184[天文地球—天文学]