Cryptomare minerology and lava lake processes within the gassendi crater

Introduction: The Gassendi region, on the western nearside of the Moon just north of Mare Humorum, exhibits a variety of volcanic features. Recent studies of these features reveal the region’s complex volcanic history. For instance, discovery of new and confirmation of pre-existing cryptomare [1], pyroclastic deposits [2,3], mare deposits [1], lava lakes [1,4], irregular depressions, moat-like wall boundaries, possible volcanic constructs on the floor of Gassendi [5,6] and a cryptomare west of Gassendi [7].