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What place did Komatiite get its name?
komatiite got its name from lake Komati where it wa sfound
Does komatiite react with hcl?
Yes, komatiite, being a magnesium-rich volcanic rock, can react with hydrochloric acid (HCl). The reaction will result in the release of hydrogen gas and the dissolution of magnesium from the komatiite rock into the acid solution. The rate of reaction will depend on factors such as the concentration of the acid and the temperature of the system.
How is komatiite formed?
Komatiite forms when a volcano erupts ultramafic lava, very poor in silica and rinch in iron and magnesium. Komatiite has a higher melting point than any modern volcanic rock. Volcanoes today no longer erupt komatiite lava as Earth's interior is no longer hot enough.
What is the difference between Granite and Komatiite?
Granite is an intrusive felsic igneous rock. It is high in silica, potassium, aluminum, and sodium. It forms when magma cools slowly underground. Komatiite is an extrusive ultramafic igneous rock. It is poor in silica and rich in iron and magnesium. It forms when lava cools on Earth's surface. Earth's interior is no longer hot enough to produce komatiite lava.
Is komatiite intrusive or extrusive?
Komatiite is an extrusive igneous rock that forms from very hot magma erupting onto the surface of the Earth and cooling quickly. It is characterized by its high magnesium content and typically forms where there are high mantle temperatures.
What are the magma types in order of decreasing viscosity?
Most viscous Felsic magma i.e. rhyolite Intermediate magma i.e. andersite Mafic magma i.e. Basalt Ultramafic magma i.e. Komatiite Least viscous
Igneous rocks that contain many dark silicate minerals and that also are rich in magnesium and iron have a composition that is . ultramafic andesitic basaltic granitic?
Igneous rocks that contain many dark silicate minerals and are rich in magnesium and iron have a composition that is classified as ultramafic. These rocks typically contain high amounts of olivine and pyroxene, making them dense and dark in color. Examples include peridotite and komatiite, which are formed from very high-temperature magmas.
What is the temperature range for magma?
Magma is a complex high-temperature fluid substance. Temperatures of most magmas are in the range 700 °C to 1300 °C (or 1300 °F to 2400 °F), but very rare carbonatite melts may be as cool as 600 °C, and komatiite melts may have been as hot as 1600 °C. Most are silicate mixturess.
Why is lava sometimes green?
No. It generally will glow red. Basaltic lava may have a black crust on it and cools into black rock. More felsic lavas may be gray on the surface. Komatiite lava, which has not erupted since the Precambrian Time would have glowed red or yellow when it erupted and then may have taken on a greenish tint when it cooled into rock.
How magmas melt?
Magma [from Greek μάγμα, paste] is molten rock that is found beneath the surface of the Earth, and may also exist on other terrestrial planets. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma often collects in a magma chamber inside a volcano. Magma is capable of intrusion into adjacent rocks, extrusion onto the surface as lava, and explosive ejection as tephra to form pyroclastic rock.Magma is a complex high-temperature fluid substance. Temperatures of most magmas are in the range 700 °C to 1300 °C (or 1300 °F to 2400 °F), but very rare carbonatite melts may be as cool as 600 °C, and komatiite melts may have been as hot as 1600 °C. Most are silicate mixturess.
What is the rarest kind of rock in the world?
Meteorites of Martian origin would have to be at or near the top of the list. Very few museums and universities are in possession of them. Burgess shale is also in demand for its evidence of early lifeforms from the Cambrian Period. EDIT: The title of rarest kind of rock in the world is a close tie between the oldest rock in the world, one piece found in Canada, and one in India, and a "rock" called painite, which there are about 50 pieces of. Though there are more pieces of painite, the mass of all of them combined would be equal to or less than the oldest rock in the world combined.
What is the melting point of magma?
Temperatures of most magmas are in the range 700 °C to 1300 °C (or 1292 °F to 2372 °F), but very rare carbonatite melts may be as cool as 600 °C, and komatiite melts may have been as hot at 1600 °C
