Fig. 3From: On the importance of self-secondaries(Modified from Xiao and Werner (2015))The Surveyor 7 landing site (denoted as white star in c) on the northern ejecta deposits of Tycho. a Surface features of ejecta deposits around the landing site. The inset image shows the location of this frame. The inset plot shows the crater size-frequency distribution of craters on difference facies of the ejecta deposits. b Normal ejecta deposits to the north of the landing site show little modification by melt flows. c Melt pools and melt veneer near the landing siteBack to article page