Answer:
Partial melting occurs when only a portion of solid is melted. It is thus enriched in the chemical components of minerals with lower melting temperatures and the remaining unmelted portion of the rock is composed of minerals with highest melting temperatures. Partial melting preferentially enriches melts with incompatible elements.
Partially melted rock do not usually experience complete melting inside the Earth, due to their different chemical composition and their melting points.
It is thought that partial-melting processes play a major role in generating more-defined liquids from less-evolved ones, so that many basalts may be the result of partial melting in the upper mantle, and many granites may have derived partly or completely from the partial melting of continental crust (anatexis).With increasing temperature and pressure, the subducted oceanic crust (of basic composition) first undergoes metamorphism and then begins to melt or release watery fluids; this material rises into the overlying mantle, which may also begin to melt, giving rise to intermediate magma.
Answer:
Fold mountains are formed when two plates run into each other or collide
Explanation:
Mesoamerica is different from <span>Central America.
</span>Mesoamerica<span> is referring to a region up to the North of Mexico. In the South-West, it also covers the nowadays states of Belize.
</span>
Hope this helps :)
Answer:
according to the dictionary, Ethnicity is the fact or state of belonging to a social group that has a common national or cultural tradition.
Explanation:
hope i helped!
The primary source of fuel in South america is petroleum.
-Agarvated
