本文選題：嫦娥一號 + 撞擊坑��； 參考：《地學前緣》2012年06期

【摘要】：月球表面環(huán)形構造主要有撞擊坑、火山口和月海穹窿3種,其中撞擊坑分布最廣泛,是研究月表環(huán)形構造的主要內容。由于月表撞擊坑數(shù)量大、種類多及其形成伴隨著整個月球地質的演化過程,因此這種月表地形地貌比較完整地記錄了月球表面地貌隨時間的改造過程以及改造類型。文中通過研究撞擊坑遙感影像及形貌特征,總結歸納為簡單型、碗型、平底型、中央隆起型、同心環(huán)型、復雜型及月海殘留型7種撞擊坑類型,用來描述月表典型區(qū)域撞擊坑的形態(tài)特征。從結構和物質兩方面進行了月表典型區(qū)域撞擊坑的形態(tài)地貌參數(shù)提取,綜合利用嫦娥一號CCD影像數(shù)據(jù)、LROC數(shù)據(jù),得到了該區(qū)域撞擊坑形態(tài)數(shù)據(jù)(坑底、坑唇、坑壁、坑緣、濺射物覆蓋層、中央峰)和形態(tài)測量數(shù)據(jù)(直徑、深度、地理位置)。研究發(fā)現(xiàn),LQ-4地區(qū)的撞擊坑分布可分為月陸區(qū)和月海區(qū),月陸區(qū)的撞擊坑多以中小型撞擊坑為主,其分布密度極高,形成年代較早,月海區(qū)撞擊坑多為年輕的撞擊坑,分化程度較低,分布密度也較低。
[Abstract]:There are three kinds of crater and lunar dome on the lunar surface. The crater is the most widely distributed which is the main content of the research on the lunar surface ring structure. Due to the large number of lunar surface impact craters, the variety and formation of the lunar surface impact craters are accompanied by the evolution process of the whole lunar geology, so the lunar surface topography and geomorphology are relatively complete records of the lunar surface geomorphology transformation process and transformation type with time. By studying the remote sensing images of impact craters and their morphological features, this paper summarizes seven types of impact craters: simple type, bowl type, flat bottom type, central uplift type, concentric ring type, complex type and lunar sea residual type. Used to describe the morphological characteristics of impact craters in typical areas of the lunar surface. The morphological and geomorphological parameters of the impact crater in the typical area of the lunar surface are extracted from the aspects of structure and matter. The morphological data of the impact crater in this area (bottom, lip, wall, edge of the crater) are obtained by synthetically using the Chang 'e-1 CCD image data and the LROC data. Sputtering coating, central peak) and morphology measurement data (diameter, depth, geographical location). It is found that the distribution of impact craters in the LQ-4 area can be divided into the lunar land area and the lunar sea area. The impact craters in the lunar land area are mainly small and medium-sized impact craters, and their distribution density is very high, and the impact craters are formed earlier. The impact craters in the lunar sea area are mostly young impact craters. The degree of differentiation is lower and the density of distribution is lower.
【作者單位】： 中國地質大學(北京)地球科學與資源學院;北京市國土資源信息開發(fā)研究重點實驗室;
【基金】：國家高技術研究發(fā)展計劃“863”項目(2009AA122201)
【分類號】：P184

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本文編號：1880395