Continent Europe and Asia together as a single continent, dubbed "Eurasia". In this model, the world is divided into six continents, with North America and South America considered separate continents. Geologists use the term "continent" in a different manner from geographers. In geology a continent is defined by continental crust: a platform of metamorphic and igneous rock, largely of granitic composition. Some geologists restrict the term 'continent' to portions of the crust built around stable Precambrian "shield", typically 1.5 to 3.8 billion years old, called a craton. The craton itself is an accretionary complex of ancient mobile belts (mountain belts) from
Today on Earth About Jazz review by Troy Collins says "A brilliant follow-up to "Beautiful Existence", and considerably more accessible than some of his more abstract efforts, "Today On Earth" is a stellar highlight in an exceptional, eclectic discography." The "JazzTimes" review by Scott Verrastro states ""Today on Earth", his current quartet’s second album, may be one of Morris’ more accessible offerings, yet still contains the kind of challenging, jagged melodies and intuitive, spatial improvisations we’ve come to expect." Today on Earth Today on Earth is an album by American jazz guitarist Joe Morris, which was recorded in 2009 and released on the