Let s talk about how meteorites are formed?

A meteoroid that falls to the ground after passing through the Earth's atmosphere. Also known as a meteorite. The meteorite fall process is a spectacular natural phenomenon, meteorites are things from outside the sky, and have aroused people's interest since ancient times.

These stones and irons that fell from outside the sky have been recorded in Egyptian papyrus before 2000 BC. There are more than 700 written records of meteorite landings in China, which is a precious material for meteorites to study ancient meteorites all over the world. In some countries with a long history in the world, some artifacts made of iron meteorites have been found in ancient tombs, indicating that ancient people have paid attention to collecting and using meteorites.

However, the real scientific study of meteorites was not carried out until around 1860, when the practical application of measurement techniques such as polarizing microscopy began. In the past 20 years, more than 5,000 meteorite specimens have been discovered and collected in the Allende carbonaceous meteorite rain in Mexico, the Jilin meteorite rain in China, and the Antarctic region, which have played a great role in promoting meteorite research. In addition to lunar samples and cosmic dust, meteorites are the main extraterrestrial material available for direct study.

The study and analysis of meteorites can obtain a large amount of cosmic information.

I know that alien rocks break away from their parent body, fall towards the Earth, enter the vapor layer, and after friction, burn all the way, explode, and finally scatter on the surface of the Earth. So, there won't be a big chunk.

If you think of a planet as an electron and the sun as a nucleon, then looking at it from far away in space is a molecule of the solar system. This molecule is also orbiting its core, and it also has a "near nuclear point" that is close and far to the law. When it runs to the perinuclear point, due to the "decrease of the radius and the increase of angular velocity", the rotation speed of the solar system is accelerated, the orbit is tight and dense, and the internal pressure increases, forming volcanic eruptions such as uplift and cracking and various orogenic activities

Due to the extremely fast rotational speed, its centrifugal force causes some planetary objects to break away from the parent body to form meteorites or some stars are torn apart, and the meteorite region is still orbiting around the pronucleus. When it falls on other planets in some suitable orbital areas, it is called: meteorite.

Some small stars crash into the Earth, and no atmosphere burns up, and when they fall to the ground, they become meteorites.

Medium iron meteorite, strong magnetic, melt shell, melt flow groove, grounding ground, specific gravity, and metallographic analysis is also required. <>

Meteors are traces of light produced by the friction and combustion of dust particles and solid blocks (meteoroids) in interplanetary space into the Earth's atmosphere. If they are not burned up in the atmosphere, they are called "meteorites" or "meteorites" when they fall to the ground. Meteoroids originally orbited the sun, and when they passed near the earth, they were affected by the gravitational pull of the earth and changed their orbit, thus entering the earth's atmosphere.

In outer space there are many large and small objects wandering around, their composition is different, when they pass the earth, due to the gravitational pull of the earth they are captured, at this time they pass through the earth's atmosphere, at this time they are not qualified to be called meteorites, can only be called meteors. The vast majority of them are completely burned to ashes before they reach the ground, and once they reach the ground, they receive the title of meteorite. But meteorites are not necessarily stones, on the contrary, most of them are iron.

In the universe, when a small stone passes by the earth, it is attracted by the gravitational attraction of the earth and enters the falling orbit, and after the friction and consumption of the atmosphere, a small piece falls to the ground to form a meteorite.

Everyone look at me and give me a thumbs up.

The collision of small stars and stars between Mars and Jupiter causes them to offset Saturn's gravity and fly to the earth, partially blocked by the moon, and the rest of the earth passes through the earth's atmosphere and rubs violently with the atmosphere to form fire meteors, which fall to the ground without burning up to form meteorites. Generally, there are stone meteorites, iron meteorites, and stone iron meteorites.

Meteorites are meteors that fall to Earth after passing through the Earth's atmosphere.

Small celestial bodies that break into the Earth's atmosphere rub violently against the Earth's atmosphere and burn up, and those that fall to the ground before they are burned are called meteorites. Meteorites are divided into stony meteorites, iron meteorites, and stony-iron meteorites according to their main components.

Meteorites are fragments of other celestial bodies in the solar system other than Earth, and they are a gift from heaven to mankind.

What can meteorites do? Anyone wants it? How many cents can it be sold for?

Same with my stony iron meteorite.

The origin of meteorites mainly includes the theory of asteroid rupture, comet ** theory and asteroid ** theory.

The asteroid rupture theory holds that there was once a large asteroid with an iron-nickel core, a silicate mantle and a crust in the main belt of the asteroid, and that the planet was collided and broken to form various types of asteroids and meteorite bodies.

The study of the mineralogy, chemistry, isotopic composition, age and other characteristics of meteorites proves that the existing meteorites are at least from 19 parent bodies with different compositions, structures and evolutionary histories, rather than a single parent body from a large planet.

The volatile components of short-period comets were lost by volatilization in 104 to 105 years, and their nuclei formed Apollo-type asteroids. Part of the meteorite comes from this residual comet nucleus.

The asteroid theory is currently the most popular, mainly based on the following reasons: the spectral characteristics and albedo of asteroids are similar to those of known meteorites; The mineral composition, structure, and density of asteroids correspond to those of various types of meteorites.

The study of the thermal history and cooling rate of various meteorites shows that the radius of the parent body of various meteorites is much less than 350 km, and the asteroid is more suitable as the parent body of the meteorite. Orbital calculations of some meteorites prove that their ** region belongs to the asteroid belt.

Numerous asteroids are formed by the perturbation of nearby Mars or Jupiter, or due to the collision between the parent meteorites, which cause some fragments to enter the orbit that intersects with the Earth and fall on the surface of the Earth.

The above content refers to Encyclopedia - Origin of Meteorites.

The theories of the origin of meteorites mainly include the rupture theory of large planets, the origin of comets, and the origin of asteroids. Between Mars and Jupiter is an asteroid belt with thousands of asteroids called asteroids. Most of these asteroids cannot be measured.

The largest and oldest asteroid discovered so far is Ceres. When studying the mineralogy, chemistry, isotopes, ages and other characteristics of meteorites, it was found that the existing meteorites are not at least one parent body of the major planets, but rather parent meteorites with different compositions, structures and evolutionary histories.

<> that is, asteroids are formed by floating in space after or after a large planet**. So the disintegration of the giant planet is clearly unsustainable. Comet** says that some short-lived comets will evaporate within a billion years"Death", Apollo of asteroid nucleus.

Some meteorites come from the remaining nuclei. The rupture of a large planet reveals a large planet with nickel at its core and silicate on its outer skin. Planets**, forming many types of asteroids and meteorites.

Meteorites are the most popular theory about the origin of asteroids.

The main reason is that the spectral and albedo characteristics of asteroids are similar to those of known meteorites. The mineral composition, structure, and density of asteroids correspond to several types of meteorites. Studies of the thermoelectrons and cooling rates of several meteorites have shown that the radius of several meteorites is much less than 350 km.

As the parent body of meteorites, asteroids are more suitable. Calculations of the orbits of some meteorites indicate that the region of their origin belongs to the asteroid belt. Many asteroids are blocked by nearby Mars or Jupiter.

Or because of the collision between planets, some debris departs from its original orbit and falls on the surface of the earth, forming a meteorite.

There is a lot of scientific speculation about the origin of meteorites. The above statement is the most objective and true. But meteorites are created by the rupture of planets and then fall to Earth due to some objective factors.

Thousands of meteorites land on Earth every year. There are very few meteorites that humans have found or found, and most of them have fallen into uninhabited areas, rivers, and lakes. When people find this"Visitors to the universe", they usually ask:

Why did you end up on Earth? So there is a lot of speculation or fantasy about meteorites.

Meteorites are a kind of thing from outer space, and the reason why meteorites are formed is because some planets in space are fractured, and then these meteorites will float in outer space or fall.

The most fundamental ** of meteorites is the rupture of planets, the planets in the universe are fractured due to various external or internal forces, and the fragments fall after a short run, forming meteorites.

Meteorites come from outer space, and they are stones from outer space that fall to the earth through impact, and finally become meteorites.

The meteorite was originally an asteroid, which fell into the Earth's atmosphere after a collision, and it was a meteorite that fell to the ground after experiencing ** burning.

In the process of cooling the molten shell, the traces of air flowing on the surface of the meteorite are also retained, which are called "gas marks". The air mark looks much like a finger print pressed on the dough. Molten crusts and air marks are the main features of the surface of meteorites.

If you see a rock or iron with such a molten shell or air mark on its surface, you can immediately conclude that it is a meteorite. However, some meteorites that fall down are older, due to long-term wind, sun and rain, the molten shell falls off, and the air mark is not easy to identify, but that doesn't matter, there are other ways to identify it.

Lunar meteorites and Martian meteorites.

Broadcast. Lunar meteorites can be divided into two categories: volcanic rocks and sedimentary rocks, and lunar basalt is one of the main rocks that make up the moon, with colors such as black, white, dark purple, purple-red, green, dark green (commonly known as black treasure green), gray-green, yellow, brown-yellow, mixed colors, etc. Speckle structure and almond structure with biotite. Common sulfides found in lunar meteorites are meteorite iron, pyrite, chalcopyrite, chalcopyrite, sulfur nickelite, and unknown minerals.

The transparent molten crust on the surface of the lunar meteorite, which is a volcanic rock, is formed by the melting of the transparent material in the lunar rock at high temperature. Other melting phenomena such as molten crusts, melt streaks, flow lines, grooves, foil pits, and edges and corners formed by directional falls are evident.

Meteorites are unburned materials that fall to the surface of the Earth or other planets after entering the gravitational range of the Earth or other planets. Meteorites can be stony, iron, or a mixture of rocky iron, as well as a mixture of ice and solid debris.

in the solar system. Inside and at the edges, there are countless solid materials of different sizes, some of which come from leftover material from the formation of the solar system, some of which are fragments formed by the formation of the solar system that did not aggregate to form large planets, or some smaller planetary blanks that collide with each other. The vast majority of meteorites are concentrated on Mars and Jupiter.

The asteroid belt between orbits.

Inside. These objects usually follow a certain orbit within the solar system, but their trajectories can change if they collide with each other or are disturbed by the gravitational pull of massive objects such as planets. If they move near larger planets and are gravitationally pulled by them, they can fall towards them, and when they fall to the surface of the planet, they become meteorites.

Meteorite falls.

When meteorites fly at high altitudes, the surface temperature reaches several thousand degrees. At such high temperatures, the surface of the meteorite melts into liquid. Later, due to the blockage of the dense atmosphere in the lower layers, his speed became slower and slower, and the molten surface cooled down, forming a thin crust called "molten crust".

The molten shell is very thin, generally around 1 mm, and the color is black or brown.

In the process of cooling the molten shell, the traces of air flowing on the surface of the meteorite are also retained, which are called "gas marks". The air mark looks much like a finger print pressed on the dough. Molten crusts and air marks are the main features of the surface of meteorites.

Meteorites, also known as "meteorites", are unburned stone, iron, or a mixture of rocky and iron materials that are scattered on the surface of the Earth or other planets by cosmic meteors or dust fragments that have left their original orbits outside the Earth. It has high application value.

On December 23, 2020, some netizens broke the news that a suspected meteorite fell in Yushu, Qinghai. **, a bright fireball crossed the sky, like day. In this regard, the reporter contacted Nangqian County**, and the staff said that they had only heard about it, and it was not clear at present.