In the League Directory, NFL.com users find fantasy leagues sorted by league type, draft type, draft date, scoring settings, and roster settings. The Details link under League Notes provides the league settings.
There are two known processes by which magma ceases to exist: by volcanic eruption, or by crystallization within the crust or mantle to form a pluton. In both cases the bulk of the magma eventually cools and forms igneous rocks.
Most magma that reaches the surface in volcanic eruptions comes from a part of Earth's mantle called the asthenosphere. The asthenosphere is a layer of solid rock that is near its melting point. Turning this solid rock into liquid magma means changing its temperature, pressure, and water content. Try your hand at melting rock to create magma. The first thing to try changing is the temperature. Your rock is a toasty 1,500 degrees Celsius, but it's still solid. Click on the words lower or raise to change the temperature your rock is subjected to inside Earth.