Soil and rocks? What are the uses of rocks and soils?

At the beginning of the formation of the earth, there was no soil. 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 the products of weathering, biological and volcanic processes under surface conditions through water and air.

(2) Granite can be used to make stone for construction. For example: floors, walls (3) Marble is not only a good building stone, but also can be processed into tables, chairs or sculptural stone statues.

4) Slate, which is often used by the aborigines to build houses, lay floors, etc. (5) Limestone is the raw material for making cement. (6) Andesite can be used as stone for construction.

For example: floors, pillars, walls, stone carvings, etc. (8) Mica can be used as a material for thermal insulation or insulation.

9) Quartz is a raw material for making glass and semiconductors. (10) Crystal can be processed into various ornaments. (11) Calcite is a raw material for making cement.

12) Graphite is the raw material for making pencil refills. (13) Talc can be made into talcum powder and talcum powder. (14) Fireproof clothing is made of asbestos.

15) Plaster is made of chalk or made into a statue. (16) After the weathering of rocks and minerals, they become soil, and with soil, plants can grow.

All are formed by weathering.

1. 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, which is stony in outer space when it does not fall into the Earth's atmosphere.

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 hornblende, commonly known as greenstones, due to intense metamorphism.

2. Weathering 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).

Relationship between rock and soil: Rock is a material formed after the eruption of ancient volcanoes, and the soil is slowly formed after many natural causes (weathering, corrosion, etc.).

To put it simply, after the rock is crushed, many years after the crumbs of many animal and plant carcasses are added, it is the soil.

Rocks decompose under weathering, and when fully decomposed, they form a soil parent material, which then gradually accumulates nutrients to form soil.

Summary. 1.Rocks and soils are vital resources for the planet.

2.The earth's surface is wrapped in hard rock.

There are rocks and soil.

1.Rocks and soils are vital resources for the earth2The earth's surface is wrapped in hard rock.

The surface of the earth can be roughly seen as the earth's crust composed of rocks, and Xiangliang said that rocks are everywhere. Generally, 1,000 meters below the surface of the earth is the rock stone.

Yongjia** has rocks and soil.

Rocks are solid minerals or mixtures of minerals, in which the rocks under the sea surface are called reefs, reefs and sands, which are composed of one or more minerals, with a certain structure of trapped hail structure, and a few contain the remains or remains of living organisms (i.e., fossils). There are three states of minerals: solid (such as fossils), gaseous (such as natural gas), and liquid (such as oil), but they are mainly solid substances, which are one of the substances that make up the earth's crust and are the main components of the earth's rocky polysphere.

Rocks and soilThe hard part of the hard part we see on the earth's surface is rocks, such as the strange peaks and strange rocks of Huangshan, the stone forest peaks of Zhangzhenqiao Lijiajie, and the strange mountain peaks and forests of Guilin, all of which are the shells of the earth's inner sphere.

Rocks and soil looking in?

Yongjia scenic spot stone mast rock is rock.

Soil minerals are mineral particles of different sizes (sand, soil and gum) formed by the weathering of rocks. There are many types of soil minerals, and the chemical composition is complex, which directly affects the physical and chemical properties of the soil, and is one of the important nutrients of crops. The solid soil particles composed of minerals and humus are the main body of the soil, accounting for about 50% of the soil volume, and the pores between the solid particles are occupied by gas and water.

The vast majority of soil gas is oxygen and nitrogen entering the atmosphere, and a small part is carbon dioxide and water vapor produced by life activities in the soil. The water in the soil mainly enters the soil from the surface of the earth, including many dissolved substances of Huiqi.

If the soil is the soil, the sand on the mountains, streams and rivers is Oh.