What are the main mineral distributions of magmatic rocks

The distribution of the main minerals in magmatic rocks is: Classified according to the role of minerals in the classification and nomenclature of magmatic rocks: major minerals, minor minerals, and secondary minerals.

Major minerals refer to minerals that are abundant in the extension and play a major role in determining the name of the extension category. Minor minerals are minerals that are less abundant in rocks than primary minerals. Paraminerals are minerals that are present in very small quantities in rocks and do not play a role in the general classification and nomenclature of rocks.

Classified according to the color and chemical composition of minerals: dark minerals, light minerals.

For example, quartz and feldspar are white or flesh-colored, and are called light-colored minerals. Aluminum silicone minerals, also known as light-colored minerals, refer to minerals with high content of SiO2 and Al2O3 and no iron magnesium. Such as quartz, feldspar, etc.

Peridot, pyroxene, hornblende, and mica are dark green, dark brown in color and are known as dark minerals. Iron and magnesium minerals, also known as dark minerals, refer to minerals with high content of FeO and MGO and low content of SiO2. Minerals such as olivine, pyroxene, hornblende and biotite.

According to the classification of mineral genesis: acoustic minerals, allogenesis minerals and secondary minerals. Primary minerals are minerals that are formed during the crystallization of magma.

Allophytic minerals are minerals formed by the assimilation of magma into surrounding rocks and captives to change their composition. Secondary minerals refer to new minerals formed after magma formation, due to weathering and hydrothermal alteration after the magmatic period.

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Put the magma. According to acidity, rocks are divided into: ultramafic rocks, mafic rocks, neutral rocks and acid rocks; According to the occurring magmatic rocks, they can be divided into intrusive rocks and ejective rocks. Igneous rocks formed by erupting magma from the surface of the earth and condensing.

This includes a variety of lava and volcaniclastic rocks. Due to the rapid cooling of the ejecta rocks, they mostly form fine-grained to vitreous rocks, often with porphyritic structures. Intrusive rocks are rocks formed when magma in the asthenosphere is drilled out and condensed deep in the earth's crust when the pressure of the overlying rock layer is reduced.

Intrusive rocks are rocks formed when magma in the asthenosphere is drilled out and condensed deep in the earth's crust when the pressure of the overlying rock layer is reduced. Due to the slow cooling of magma intrusion, there is enough time for the mineral to crystallize, so the intrusive rocks are coarse-grained and have a crystalline structure.

Magmatic rock, also known as igneous rock, is a rock formed by magma erupting from the surface or invading the earth's crust for cooling and solidification, with obvious mineral crystal particles or pores, accounting for about 65% of the total volume and 95% of the total mass of the earth's crust. Magma is a hot, viscous, volatile silicate produced deep in the earth's crust or upper mantle.

The molten body is the matrix for the formation of various magmatic rocks and magmatic deposits. The whole process of magma generation, migration, accumulation, change and condensation of rocks is called magmatism.

7 Magmatic Rock and Magmatic Rock Composition.

7 Magmatic Rock and Magmatic Rock Composition.

1. Silicon-aluminum minerals: SiO2 and Al2O3 are relatively high, excluding FEO and MGO, including quartz, feldspar and quasi-simple feldspar. These minerals are lighter in color, so they are also called light-colored or light-colored minerals.

2. Iron and magnesium minerals: the content of FeO and MGO is high, and the content of SiO2 is low. These include peridot, pyroxene, hornblende and biotite. These minerals are generally darker in color, so they are also called dark or dark minerals.

Answer] The minerals of :d magmatic rocks are divided into two categories: light-colored minerals and dark minerals according to their color, and the light-colored minerals include quartz, orthoclase, plagioclase and muscovite, etc., option D is correct. The rest of the options include biotite, olivine, and hornblende, all of which are dark minerals.

Summary. 1.Magmatic rock-forming minerals include quartz, feldspar, pyroxene, amphibole, plagioclase, magnetite, etc.

Among the four types of rocks, the mafic rocks have a higher content of pyroxene and hornblende. The feldspar content in monzolite is relatively high; Basalt contains a large amount of magnetite and plagioclase; Granite contains a lot of quartz and feldspar. 2.Dark minerals include biotite, amphibole, pyroxene, magnetite, biotite, etc.; Light-colored minerals include quartz, feldspar, calcite, etc.

3.Chromaticity refers to the proportion of minerals of different colors in a certain rock, and the type of rock can be judged based on the chromaticity. For example, granite has a higher proportion of quartz and feldspar in color rate, and monzonite has a darker color and contains more plagioclase.

4.The Bowen reaction series includes peridotite, gabbro, monzonite, and granite, which is formed as a result of magma undergoing different mineral phase transitions and chemical reactions under different temperature and pressure conditions. This series of reactions explains the formation of magma in the deep Earth's depths and the reasons for the formation of different rock types.

For example, peridotite is formed at high temperature and high pressure and undergoes more mineral phase transitions and chemical reactions, while granite is formed at low temperature and low pressure and undergoes fewer phase transitions and reactions.

What are the rock-forming minerals of magmatic rocks? What is the interrelationship between their content in the four types of rocks?

1.What are the rock-forming minerals of magmatic rocks? The relative correlation of their content in the four types of rocks.

2.What are the differences between dark minerals and light-colored tomato minerals? 3.

What is color rate? What type of rock can be determined based on the wide dull color rate? Black 4 8% 15-10% 4

What's in the Bowen Reaction Series? What 5-10% of these phenomena can be explained?

1.Magmatic rock-forming minerals include quartz, feldspar, pyroxene, amphibole, plagioclase, magnetite, etc. Among the four types of rocks, the mafic rocks have a higher content of pyroxene and hornblende. The feldspar content in monzolite is relatively high; Basalt contains a large amount of magnetite and plagioclase; Granite contains a lot of quartz and feldspar.

2.Dark minerals include biotite, hornblende, hand pyroxene, magnetite, biotite, etc.; Light-colored minerals include quartz, feldspar, calcite, etc. 3.

Chromatic rate refers to the proportion of minerals of different colors in a certain rock, and the type of rock can be judged according to the chromatic rate. For example, granite has a higher proportion of quartz and feldspar in color rate, and monzonite has a darker color and contains more plagioclase. 4.

The Bowen reaction series includes peridotite, gabbro, monzonite, and granite, which is formed as a result of magma undergoing different mineral phase transitions and chemical reactions under different temperature and pressure conditions. This series of reactions explains the formation of magma in the deep Earth's depths and the reasons for the formation of different rock types. For example, peridotite is formed under high temperature and high pressure conditions and undergoes more mineral phase transitions and chemical reactions, while granite is formed under low temperature and low pressure conditions and undergoes fewer phase transitions and reactions.