Question

collect the information about working of natural geyser and prepare a report

Answer 1

A geyser is a water spring which discharges (erupts) water (along with dirt) turbulently (violently) now and then steam comes out steadily. The geothermal energy and expansion of vapour at low pressures and high temperatures causes the geysers. The formation of geysers is a hydro-geological phenomenon under certain conditions. They are nearby volcanoes and due to the presence of magma. The small holes in Earth are called “surface vents”. There are fractures, fissures, porous spaces, cavities in side Earth’s crust. There is water available inside Earth up to the depth of about 10 km. The rocks are very very hot there. This system of water reservoir holding water, getting heated and coming out through the vents is called a plumbing system. Along these vents SiO2 or geyserite is deposited and makes the vents smooth and hard. They enable high pressure to be maintained along the vents. After certain duration, the pressure of water inside Earth comes down, so geysers stop. The water on the surface seeps through pores in Earth and this slowly collects back into the reservoirs of the geysers. Thus the geyser cycle again starts. They exist in about 1000-1500 places on Earth. There are a lot of them in the USA, especially at Yellowstone National Park at Wyoming. The Grand geyser in USA erupts for about 10 minutes every 12 hours. There is a valley of Geysers in Russia in Kamchatka peninsula. This is the major one in Euro-Asia. In India there are some including one famous one in Hariyana. There are around 80 in El Tatio , Chile. There are some in Taup Volcanic zone in (North island of) New Zealand. It is supposed to have reached 160 meters high. In Iceland too there are famous geysers including the Great Geysir.