The third basalt-forming environment is a continental environment where a mantle plume or hotspot delivers enormous amounts of basaltic lava through the continental crust and up to Earth's surface. These eruptions can be from either vents or fissures.They have produced the largest basalt flows on the continents.t has a composition similar to gabbro. The difference between basalt and gabbro is that basalt is a fine-grained rock while gabbro is a coarse-grained rock. Basalt underlies more of Earth's surface than any other rock type. Most areas within Earth's ocean basins are underlain by basalt.
It's the hot bright sun beaming down on the white sand in the water. The sand in Bahamas is finer than most if not all United States Beach's therefor causing a reflection. Witch results in beautiful blue and clear water. Badreddine Chakaf.
The following areas are more likely to have clear water on any given day: northwest Florida beaches in and around Panama City Beach, Destin, Fort Walton Beach, and Pensacola; southwest Florida beaches on Anna Maria Island, Longboat Key and Siesta Key, pictured here. Many of the Florida Keysâ beaches are manmade, or are just a layer of sand over a sliver of limestone. 2  The north is almost always cooler than south, something to remember in both summer and winter. 3  To find out the average temperature of a destination, just look at the top of VISIT FLORIDAâs home page.