Analisys of morphological features of Mercury craters based on a new database

Abstract

The new global catalog of craters for Mercury, containing morphological and morphometric information, includes data onthe location (latitude, longitude), diameter, depth and such features of craters as the degree of preservation of the rampart,the presence of terraces and collapses on the inner slope, the presence of peaks, hills and ridges, cracks and chains, thenature of the bottom, lava at the bottom, the ray system, the nature of the underlying surface. The new catalog is basedon measurements of the coordinates and diameters of craters carried out at Brown University (USA) for craters with adiameter of 20 km or more and is supplemented by craters with diameters of 10–20 km. To describe the morphologicalfeatures of craters we used the methodology developed in SAI MSU.