The color temperature of daylight is close to 4300K, which is why we as human beings that see best during the daylight are able to see more vividly with a 4300K HID kit compared to 2300K from halogen bulbs. The light output from a 35W 4300K HID Xenon lamp is about 300% more visible light than a 55W halogen bulb.
Magma originates either from rising plumes of heat at hot spots in the Earth's mantle, where decompression melting takes place as the hot rock nears the surface; or, it originates in the mantle from subduction of oceanic crust, where cold, wet rock speeds melting of the subducting rock and it rises toward the surface.
Magma is usually studied as lava or igneous rock. But most magma remains molten or partly molten beneath Earthâs surface. In fact, magma has only been discovered three times in its ânaturalâ habitat deep in Earthâs crust. Geothermal drilling projects discovered two magma sites on the âBig Islandâ of Hawaii, and one on Iceland.