Benefits brought by volcanoes

Geothermal Power
heat from a magma chamber can be used as an energy source

electricity generated directly from steam in volcanically active area
electricit generated by water pumped down and heated from hot rocks
space heating for greenhouses, public buildings and homes
hot water supply for swimming pools, cooking and domestic use

Fertile soils - lava and some volcanic ash weather create a deep fertile soil

somewhere to live - volcanic tuff formed from ash is a useful building material, easy to cut and light.

without volcanic gases the earth would have no atmosphere:

volcanoes supply large volumes of gases to the atmosphere and initally created the earth's atmosphere of carbon dioxide, sulphur dioxide and nitrogen
all the water in the oceans originated as volcanic has in the form of water vaopout

minerals:

sulfur is mined from active volcanoes
black smokers are hydrothermal vents on MORs that produce a variety of sulfide metals deposits, rich in nickel, copper, silver, zinc, mercury, magnanese and lead
bacteria found in Yelowstone are now used in DNA and AIDS testing.

	Erstellt von siobhan.quirk vor mehr als 13 Jahre

Undergraduate Geology - Part 2 (Igneous Processes and Products) Notiz am Living with Volcanic Activity, erstellt von siobhan.quirk am 21/05/2013.

Living with Volcanic Activity