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:
Earthquakes
Explanation:
Earthquakes are caused by the movement along the fault, which is found near the boundaries of two tectonic plates. The specific fault where plates slide against each other is known as the transform fault.
Answer:
bcz they did not reach Europe until after the 15th century
Explanation:
Answer:
AB = 5.8 units
Explanation:
The distance of line segment AB shown in the attachment below can be calculated using the distance formula,
, assuming that each box in the graph equals 1 unit.
A(2, 4)
B(-3, 1)
Let,


Plug in the values into the distance formula




(nearest tenth)
AB = 5.8 units