What are the different magmatic differentiation processes?

Various degrees of partial melting from the same source. Crystal fractionation. Mixing of 2 or more magmas. Assimilation/contamination of magmas by crustal rocks.

What is ore forming process?

Hydrothermal process is the most common ore forming process. Water is heated by the magma chamber and this water dissolves metals. Metals are dissolved in the water and this solution seeps through cracks, fractures and through permeable rocks until they are precipitated and form a deposit.

What processes trigger magmatic crystallization?

Magmatic processes comprise any process that affects the melting or crystallization of a magma. The processes that can potentially modify the melt include evolution of a fluid phase (H2O or CO2), fractional crystallization, assimilation of country rocks, immiscibility of liquids, and flow differentiation.

Which process is key to the formation of magmatic ore deposits?

A mass transfer process in the form of magmatism is the first step leading to the potential formation of magmatic ore deposits.

What are the three magmatic processes?

The magmatic processes they record include melting in the mantle, transport to within the volcano, cooling and crystallization, assimilation of surrounding rocks, magma mixing, and degassing.

Which mineral resources are associated with magmatic differentiation?

Magmatic Processes Crystallization and differentiation (see chapter 4) of a magmatic body can cause the concentration of certain minerals and elements. Layered intrusion (typically ultramafic to mafic) can be host to deposits that contain copper, nickel, platinum-palladium-rhodium, and chromium.

What is magmatic ore deposits?

Magmatic ore deposits, also known as orthomagmatic ore deposits, are deposits within igneous rocks or along their contacts in which ore minerals crystallised from a melt or were transported in a melt.

What is ore forming elements?

Among the ore-forming elements treated in reliable reports, thirteen important elements, Au, Ag, Cu, Pb, Zn, Fig, Sb, Sn, Mo, W, Cr, Mn, Fe, and several other elements were studied. Their reserves and already exploited quantities (metal content) are shown in Table 1.

What is the magmatic processes?

The magmatic processes they record include melting in the mantle, transport to within the volcano, cooling and crystallization, assimilation of surrounding rocks, magma mixing, and degassing. Olivine, rich in magnesium-oxide (MgO) is the first to begin to crystallize as magma cools.

What are 4 processes that result in the formation of minerals?

The four main categories of mineral formation are: (1) igneous, or magmatic, in which minerals crystallize from a melt, (2) sedimentary, in which minerals are the result of sedimentation, a process whose raw materials are particles from other rocks that have undergone weathering or erosion, (3) metamorphic, in which …

What is magmatic differentiation quizlet?

Magmatic differentiation is the formation of one or more secondary magmas from a single parent magma. At any stage in the evolution of a magma, the solid and liquid components can separate into two chemically distinct units.

How does mineral deposition occur in magmatic concentration?

Deposits of minerals form when a medium that contains and transports mineral-making ore releases and deposits the ore. Magma is one such medium that transports ores. When magma or lava cools, the magma and ore carried within it crystallize to form tiny minerals in the newly-created igneous rock.