Who knows the fossil soil of the formation of rocks 5

Rocks are classified into magmatic rocks, sedimentary rocks, and metamorphic rocks according to their genesis. Among them, magmatic rock is a rock formed by the condensation of high-temperature molten magma on the surface or underground, also known as igneous rock or ejecta rock; Sedimentary rocks are rocks formed by the transport, sedimentation and diagenetic consolidation of the products of weathering, biological and volcanic processes under surface conditions through the transport, sedimentation and diagenetic consolidation of external forces such as water, air and glaciers. Metamorphic rocks are pre-formed magmatic rocks, sedimentary rocks or metamorphic rocks that are formed by metamorphism due to changes in the geological environment in which they are located. Soil Forming Factors:

1) The weathering of the parent material factor of soil formation breaks the rock, changes the physical and chemical properties, and forms a weathered crust with a loose structure, the upper part of which can be called the soil parent material. If the weathered crust remains in place and forms a residue, it is called residual parent material; If the weathered material is migrated under the action of gravity, flowing water, wind, glacier, etc., to form colluvium, alluvium, marine deposit, lacustrine deposit, moraine and aeolian deposit, etc., it is called the sedimentary parent material. The soil-forming parent material is the material basis for soil formation and the initial element of plant mineral nutrients (except nitrogen).

The parent material represents the initial state of the soil, which is gradually transformed into a soil for growing plants over thousands of years under the influence of climate and organisms. The parent material plays an important role in the physical properties and chemical composition of soil, and this effect is most significant in the early stage of soil formation.

Different rocks have different genesis, it is generally believed that magma cools to form basalt, andesite, etc., fossils are formed after the death of organisms, and lake and river sediments may also harden into shale when they encounter high temperatures under the action of high water pressure. Soil is formed by the long-term modification of plants and microorganisms after the physical, chemical, and biological weathering (fragmentation) of rocks.

At the beginning of the formation of the earth, it became a mountain rock, and after weathering, it became a rock. Then it becomes a meteorite, when it does not fall into the earth's atmosphere, it is a stony, iron or a mixture of stone and iron in outer space, and if it falls into the atmosphere, it falls to the ground without being burned by the atmosphere and becomes the meteorite we usually see.

To put it simply, the so-called meteorite is the debris left behind by a miniature version of an asteroid that "hit the earth". Hundreds of millions of years have passed, and there are countless rocks in the world. It is moving in a quantitative direction.

Ancient rocks are found in crystalline substrates in the interior of the continents. The representative rocks are mafic and ultramafic igneous rocks. These rocks have been transformed into metamorphic rocks rich in chlorite and amphibole due to intense metamorphism, commonly known as greenstone.

Rock, is a solid mineral or a mixture of minerals, is a collection of one or more minerals with a certain structure.

It can be divided into igneous rocks, metamorphic rocks, and sedimentary rocks.

Igneous rocks are also called magmatic rocks. Molten material from the Earth's interior, condensed and consolidated into rock under different geological conditions. When lava erupts from a volcanic channel and solidifies on the surface, it is called ejecta rock or volcanic rock.

Common volcanic rocks include basalt, andesite, and rhyolite. When the lava rises before reaching the surface and condenses at a certain depth in the earth's crust, the rocks are called intrusive rocks, which are divided into plutonic rocks and shallow rocks according to different intrusion sites. Granite, gabbro, diorite are typical plutonic rocks.

Granite porphyry, gabbro porphyry, and diorite porphyry are common epigenetic rocks.

Sedimentary rocks: layered rocks formed by the transportation, sedimentation and diagenesis of weathered materials, volcanic detritus, organic matter and a small amount of cosmic materials under normal temperature and pressure conditions on the surface. According to the genesis, it can be divided into clastic rocks, claystone rocks and chemical rocks (including biochemical rocks).

Common sedimentary rocks include sandstone, tuff sandstone, conglomerate, claystone, shale, limestone, dolomite, siliceous rock, ferroid, phosphatite, etc.

Metamorphic rocks: Rocks formed by metamorphism of original rocks. According to the different types of metamorphism, metamorphic rocks can be divided into 5 categories:

Dynamic metamorphic rocks, contact metamorphic rocks, regional metamorphic rocks, mixed rocks, and metasomatic metamorphic rocks. Common metamorphic rocks include mylonite, clastic rock, hornstone, slate, phyllite, schist, gneiss, marble, quartzite, amphibole, schist, dolerite, mixed rock, etc.

Summary. Rocks are the basic material for soil formation. With the action of chemical, physical and biological processes, rocks will gradually decompose and weather, releasing various chemical, trace elements, minerals and nutrients, providing a large amount of material to the soil**.

Specifically, the type and amount of material provided by the decomposition of the rock is closely related to the type of rock. For example, limestone will provide a large amount of calcium, magnesium, phosphorus, and silicate, which can form fertile soil, suitable for growing vegetables such as cucumbers, eggplants, and watermelons; Granite, on the other hand, provides more silicon, iron and aluminum, making it suitable for growing trees, flowers and corn. In short, through long-term weathering and decomposition, rocks will gradually release elements and compounds that are beneficial to soil growth, which is an important part of the soil and provides a key material basis for plant growth.

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Rocks are the basic material for soil formation. With the action of chemical, rotten physical and biological processes, rocks will gradually decompose and weather, releasing various chemical elements, trace elements, minerals and nutrients, providing a large amount of substances for the soil**. Specifically, the type and amount of material provided by the decomposition of the rock is closely related to the type of rock.

For example, limestone will provide a large amount of calcium, magnesium, phosphorus, and silicate, which can form fertile soil, suitable for growing vegetables such as cucumbers, eggplants, and watermelons; Granite, on the other hand, provides more silicon, iron and aluminum, making it suitable for growing trees, flowers and corn. In short, through long-term weathering and decomposition, rocks will gradually release elements and compounds that are beneficial to soil growth, which is an important part of the soil and provides a key material base for plant growth. If the content is helpful to you, I hope you can get your likes, thank you very much!