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A xenocryst is a mineral crystal which is imbedded in igneous rock. The crystal is formed by exotic chemical and structural reactions in the tremendous pressure and temperature of the Earth's mantle, below the crust. The crystal is then picked up by liquid magma rock, and carried up cracks and fissures into the crust, where it solidifies into igneous rock. If the magma makes it all the way to the Earth's surface (where it is called lava), it solidifies into igneous rock either as a lava flow or a volcanic eruption. A classic example is the inclusion of xenocystic diamonds in fissures of igneous Kimberlite rock in the famous diamond mines of Africa.
What else can I help you with?
Name four clastic sedimentary rocks and explain how these rocks form?
Sandstone: formed by the cementation of sand grains. Conglomerate: formed by the cementation of rounded pebbles. Siltstone: formed by the compaction of silt-sized particles. Shale: formed by the compaction of clay and silt particles.
What sedimentary rocks are formed from the remains of plants and animals?
Sedimentary rocks formed from the remains of plants and animals are called organic sedimentary rocks. Examples include coal, formed from the remains of plants, and limestone, formed from the shells of marine organisms.
What are the three kinds of rocks tell how each formed?
Igneous, metamorphic, and sedimentary are the three types of rocks. Sedimentary is formed when layer of mud or silt build up gradually. Igneous is formed when molten magma cools. Metamorphic is formed when a type of rock changes to another type
Where is each type of igneous rock formed?
The Extrusive igneous rock is formed on the earths surface while the Intrusive igneous rock is formed within or inside the earths crust.
According to the following reaction how many grams of sulfur are formed when 37.4 g of water are formed?
To determine the grams of sulfur formed, we need to first identify the balanced chemical equation for the reaction involving sulfur. Once we have the balanced equation, we can use stoichiometry to determine the mass of sulfur formed using the given value of water formed.
What is a xenocryst?
A xenocryst is a crystal which does not occur in a specific igneous rock.
What is the difference between a xenolith and a xenocryst?
A xenolith is a foreign inclusion in an igneous rock. A xenocryst is a crystal, resembling a phenocryst, in an igneous rock that is foreign to the body of rock in which it occurs. Xenocryst is just more specific, talking only about crystals, whereas a xenolith could be any type of inclusion
How do xenolith and xenocryst reach earth's surface?
i dont know thats what im trying to figure out
Words that end with t?
at, bat, cat, drat, eat, fat, get, hat, intact, jaunt, knot, latest, mat, nest, oat, pat, quiet, rat, sat, tat, unmet, vast, what, xenocryst, yeast, ziggurat
How was the Supreme Court formed?
it was formed by being formed
How are gulfs formed?
Gulfs are formed by erosion. Gulfs are formed by erosion.
How is starches formed?
starch is formed by fermentation.
Who formed the spice girls formed?
The Spice Girls were formed by Chris Herbert.
What solid is formed when magnesium carbonate is formed?
Magnesium oxide is formed, i think(:
How is a guyot formed?
They are formed by erosion
How are canyans formed?
they are formed by rivers.
When was the himalayus formed?
when was the Himalayas formed?
