Geology of MercuryStratigraphyFirst Map of MercuryWide-spread inter-crater plainsHeavily cratered plainsCaloris basin and related depositsSmooth PlainsHilly and Lineated antipodal to Caloris BasinYounger cratersPre-TolstojTolstojan SystemCalorian SystemCaloris Montes and NervoOdinVan Eyck FormationMansurian SystemKuiperian PeriodMessengerGeology of MercuryBy Triana HenzStratigraphy•Terrian reconnaissance–Images of the planet•Classification of images–Find cause and affect •Chronostratigraphic classification–Finding major eventsFirst Map of Mercury•Trask and Guest were the first to map Mercury once the Mariner 10 images were analyze•There were six things that had caught their eyes the first time they were looking at the images•Other people after them help develop the stratigraphic that is used today for MercuryWide-spread inter-crater plainsHeavily cratered plainsCaloris basin and related depositsSmooth PlainsHilly and Lineated antipodal to Caloris BasinYounger cratersPre-Tolstoj•The oldest identified terrian•Occurred before 4 Gigaannum (Ga) •Multiringed basin deposits•Extensive intercrater plains•High impact rate•Crustial formation and early evolutionTolstojan System•Tolstoj basin•~4 - 3.5 Ga•Goya Formation•“Archimedean” cratersCalorian System•Caloris Impact and basin•Wide-spread smooth plains•3.9 – 3(.5) Ga•Caloris GroupCaloris Montes and NervoOdinVan Eyck FormationMansurian System•Mansur crater•Other impact craters with no bright rays•No evidence for regional volcanic or tectonic activities•~3(.5) – 1 GaKuiperian Period•~1 Ga to present•Bright-rayed crater Kuiper•Deposits of impact craters with their bright rays still visibleMessenger •Let us see what’s on the “dark side”•The respective data that is collected will help place together the global geologic sequence together•The data will help piece together the history of