How the stones on earth are formed

After the universe became large, the universe gradually cooled down, and the cosmic dust gradually coalesced to form.

Stones are generally formed from calcium carbonate and silica.

1. Calcium carbonate.

Calcium carbonate (CACO) is an inorganic compound commonly known as limestone, limestone, stone powder, marble, etc. Calcium carbonate is neutral, insoluble in water, soluble in hydrochloric acid. It is one of the common substances on the earth, found in aragonite, calcite, chalk, limestone, marble, travertine and other rocks, and is also the main component of animal bones or shells.

Calcium carbonate is also an important building material and has a wide range of industrial uses.

2. Silica.

Silica (SiO) is an acidic oxide that corresponds to silicic acid (Sio). Silica is one of the most important compounds of silicon, and the natural silica that exists on the earth accounts for about 12% of the mass of the earth's crust.

The role of stones

Stone can be used to make fire, beauty, food, jade beauty, etc., stone has grinding stones, drinking Maifan stone water can regulate human metabolism, increase appetite, promote circulation, help to eliminate harmful substances accumulated in the human body due to environmental pollution, biochloride, so that cells purify, long-term drinking can receive the effect of prolonging life, stone can build houses, handicrafts, can be used as building materials.

Many of the raw materials of modern industry are stones: iron ore, copper ore, aluminum ore, etc. are countless; Stones can be collected, stones can be worn, stones can be used as book titles, and stones can be used as "stone pot crispy sausages" this spring.

Dear questioner: Hello, thank you for your question, here will serve you wholeheartedly, so that you have been waiting for a long time, please bear with me! A stone is a natural rock that may have formed millions or hundreds of millions of years ago.

The formation of stones is mainly due to geological activities in the Earth's interior, including volcanic eruptions, **, weathering, and erosion, among others. Here are a few common ways to form stone matches:1

Volcanic eruption: When a crater erupts, the ejected magma cools and solidifies, forming volcanic rock. 2.

Sedimentation: Weathering and erosion break up rocks in mountains into small hailstone pieces, which over time deposit on the riverbed or seabed, gradually forming rock formations. 3.

Pressure and thermal action: When the rock is buried deep underground, high temperature and high pressure will metamorphize its peiwei state, such as gneiss, marble, etc. 4.

Chemistry: When underground water flows through rocks that contain minerals, it dissolves the minerals and then recrystallizes to form the stone. In conclusion, the formation of stones is a long and complex process that involves a variety of geological processes and chemical reactions.

Different ways in which stones are formed can lead to different properties and uses of stones.

Personally, I believe that the stones on the earth are more than stars, and they are stars that came from a long time before the formation of the sun, and the most ubiquitous element in the universe is hydrogen, and heavy elements appear after the nuclear fusion reaction of stars.

The main component of rocks on Earth is the silicate of calcium, and elements such as calcium, silicon, and oxygen are formed in stars. Moreover, nuclear fusion reactions have been going on inside stars, and stars with less than 8 times the mass of the Sun will eventually form black dwarfs dominated by carbon and oxygen, stop glowing and fall into darkness, a process that may take tens of billions of years; In the final stage of the life of a star with a mass greater than 8 times the sun, the elemental nucleus will fuse until iron is produced, and after the iron is formed, the gravitational pull of the star is unstable, and a supernova explosion may occur, and the iron nucleus will capture neutrons and form heavier elements.

The Milky Way was formed about 6-7 billion years ago, and before that there may have been a large number of nebulae distributed in the Milky Way region, and the solar system was also produced from that nebula, which was formed about 5 billion years ago, and there were 2 billion years between the formation of the Milky Way and the formation of the Sun, which is enough to form at least one generation of stars, they are massive, nuclear fusion forms heavy elements, and finally a supernova explosion occurs, pushing matter into the distance, creating a nebula again, and creating heavy elements. The presence of oxygen, silicon, calcium and other elements in the sun indicates that other massive stars existed not too far from the area where the solar system was formed before the formation of the sun.

The direct ** of the rocks on the earth are the meteorites, comets, etc. captured in the history of the formation of the earth, which collided with the earth and brought the rocks to the earth, and the ** of water may also make the same. Because the ** of the earth elements are all stars, phosphorus is indispensable in the earth's life, but the distribution of phosphorus in the universe is not very widespread, so some scientists believe that there may only be earth life in the universe, but this is only a speculation, and extraterrestrial life may not need to be similar to the form of earth life.

The formation of rocks on the earth is more complex, the birth of the earth in a solar system nebula material, after a long period of evolution to form a solid celestial body, this celestial body was hit by meteorites and planets in the universe, forming rocks, rocks after weathering and gradually fragmenting to form stones.

The stones of the earth are inherent in nature. It is a product of the natural environment. It was formed after many years of wind and rain.

I think it's a meteor in the sky that falls for various unknown reasons, and when it falls on the ground, it turns into stone.

There are two main reasons for the formation of stones on the earth: 1. When a volcano erupts on the earth, magma invades the interior of the earth's crust or flows out of the surface of the earth to form a lava fiber, which is formed by cooling and solidification; 2. Rocks are affected by the high temperature, high pressure and hydrothermal fluid that occur in the earth's crustal movement, changing their original structure or organization and producing new minerals.

How the stones on earth are formedStone, generally refers to the small rock mass that falls off by the external force of the large rock mass, mostly attached to the surface of the large rock mass, generally into a block or oval, the appearance is rough, some are smooth, the texture is firm, brittle and hard. It can be used to make stone tools and collect stone mines. Thousands of years ago, our ancestors used stones to make fires.

Stones are generally composed of calcium carbonate and silicon dioxide.

The genesis of stones on the earth is relatively complex, and can be divided into sedimentary rocks, metamorphic rocks, igneous rocks, meteorites, fossils, etc. Among them, the secondary component of the Earth's lithosphere is igneous rock, which is an igneous rock formed by magmatic condensation. It is also known as volcanic rock, andesite, and basalt.

Sedimentary rocks are rocks that have been formed by weathering and then turned into detritals, or by the remains of living organisms and then through erosion, sedimentation, and petrification.

The genesis of stones on the earth is relatively complex, and according to the genesis, it can be roughly divided into: sedimentary rocks, metamorphic rocks, igneous rocks, meteorites, fossils, etc.

1. Sedimentary rocks:

Rocks that have been formed from weathering and turned into detritals, or by the remains of living organisms, etc., and then caused by erosion, sedimentation, and petrification.

2. Metamorphic rocks:

From the original igneous rocks or sedimentary rocks, and then through the crustal movement or magmatic intrusion of high temperature, high pressure and hydrothermal influence, the structure or organization of the original rock can be changed, or some minerals disappear, and other new minerals are produced, thus becoming another kind of rock different from the original rock, called metamorphic rock, such as marble changed from limestone; Slate is transformed from shale; Quartzite is changed from sandstone, etc.

3. Igneous rocks:

Igneous rocks are caused by magma intruding into the earth's crust or flowing out of the dry surface of the earth, resulting in lava, which is caused by cooling and solidification, such as basalt and granite. Igneous rocks are the most primitive of all rocks.

4. Meteorite: Meteorite, also known as "meteorite", is an unburned stone, iron or mixed material of stone and iron that has left the original orbit of the earth and scattered the meteors or dust fragments on the surface of the earth or other planets.

5. Fossils: fossils, animal or plant remains in rocks. Often, soft parts such as muscles or epidermis have eroded before they can be preserved, leaving only the more resistant parts, such as bones or shells.

They are then replaced by the infiltration of minerals from the surrounding deposits. Many of the fossils are also covered with the weight of the rocks on which they are flattened.

Stones, also known as rocks, became mountain rocks at the beginning of the formation of the earth, and after weathering, they became rocks. Rocks can be divided into three main categories according to their genesis: sedimentary rocks, igneous rocks, and metamorphic rocks.

1. Origin of sedimentary rocks.

Sedimentary rocks are rocks that have been formed in the past and have been weathered into detritals, or by the remains of living organisms, etc., and then formed by erosion, sedimentation, and petrification.

2. Igneous genesis.

Igneous rocks are caused by magma invading the earth's crust or flowing out of the earth's surface to cause lava, which is then cooled and solidified, such as basalt and granite. Igneous rocks are the most primitive of all rocks.

3. Genesis of metamorphic rocks.

Metamorphic rocks are caused by the original igneous rocks or sedimentary rocks, and then through the influence of high temperature, high pressure and hydrothermal fluids caused by crustal movement or magmatic intrusion, which can change the structure or organization of the original rock, or make some minerals disappear, and produce other new minerals, thus becoming another kind of rock different from the original rock, called metamorphic rock, such as marble changed from limestone; Slate is transformed from shale; Quartzite is changed from sandstone, etc.