Michelangelo quadrangle (Beethoven, Michelangelo, Valmiki, and Bach). Minor tectonic activity continued as scarps andl unar mare-type wrinkle ridges developed within the smooth plains materials. The cratering rate declined rapidly as the c3, c4 and c5 craters were produced. Regolith production continues to the present day on all units. If the geologic history of the Moon is a guide, most of the events discussed were essentially complete within the first 1.5 to 2.0 billion years of Mercury’s history (Murray and others, 1975). A summary of global mercurian geology may be found in Guest and O’Donnell (1977) and Strom. Michelangelo quadrangle The Michelangelo quadrangle
What Was Missing "subtext". "The A.V. Club" named the episode one of the ten additional installments of the series that illustrates that "emotional complexity" lies "beneath "Adventure Time"s weirdness". "What Was Missing" became controversial because of an allegedly implied past relationship between Marceline and Princess Bubblegum. The controversy largely began after an accompanying "Mathematical" recap—a behind the scenes video series produced by Frederator Studios that implied that there were lesbian relations between Princess Bubblegum and Marceline and that the writing staff actively seeks input from fans. This incident was addressed by Fred Seibert, the show's executive producer, who said that "in trying to