月球佩塔维厄斯幅(LQ-21)数字地质填图与区域地质演化特征

佩塔维厄斯幅月球地质图(LQ-21)位于近月面与远月面交接位置,又处于月海和月陆的过渡区,周边邻近酒海、丰富海、史密斯海等大型撞击盆地,是月球数字地质填图工作中的一个典型区域。研究该地区的地质发育概况有助于了解月球的发展演化历史。本文利用中国探月工程所获得的“嫦娥一号”(CE-1)CCD影像数据、干涉成像光谱仪(IIM)数据、激光高度计(LAM)数据和“嫦娥二号”(CE-2)CCD影像数据以及其他已有的月球地质资料,应用ArcGIS平台,开展月表物质成分、构造要素、地质时代信息的研究和数字填图工作,编制了1: 2 500 000佩塔维厄斯幅(LQ-21)数字月球地质图,总结了该地区区域地质演化历史并建立地质图空间数据库。

Compilation of the geological map of the Petavius quadrangle of the Moon(LQ-21)and study on the regional geological evolution

The Petavius quadrangle (LQ-21) is located at the junction of the near and far sides of the Moon in the transition zone between the mare and highland terrain. Large impact basins such as Nectaris, Foecunditatis, and Smythii basins are developed around this region. Understanding the geological development of this area is helpful for understanding the development and evolutionary history of the Moon. Accordingly, this area is a key area in the digital geological mapping of the Moon. This work combines the Chang’E-1(CE-1) CCD image data, interference imaging spectrometer(IIM) data, laser altimeter (LAM) data, Chang’E-2(CE-2) CCD image data, as well as other lunar geological data, to study the material composition, structural elements, and geochronology of the lunar surface, and to compile the lunar geological map using the ArcGIS platform. So far, we have completed the geological map of the Petavius quadrangle at 1: 2.5 million scale, summarized the regional geological evolutionary history, and established a spatial database for the geological map of this region.