The sun has 8 planets, according to its composition, can be divided into solid rock planets and gaseous giants. Among them, Mercury, Venus, Earth and Mars belong to rock planets, known as the class planet; the remaining Jupiter, Saturn, Dynasty Star and Neptune belong to a gaseous giant star, called wood planet.
Type of wood is not only a gaseous, the quality and volume are also very large. Woodlines are generally larger than the mutual planet. It should be noted that the gaseous planet is not completely composed of gas, and its kernel is still solid. The main components of wood pair are hydrogen and helium, which is also the main component of the sun. Then how the rocks such as rock planets such as the earth are formed?
Understanding the earth
The earth is the largest rocky planet in the solar system, and Mercury is the smallest rock planet, and the quality of Mercury is only 5.6% of the quality of the earth. However, just a kind mining manufacturer of wooden planet is much larger than the earth. Kings Star is a small quality wood planet, but its quality is still 14.5 times the quality of the earth. The quality of Jupiter is very exaggerated, and it is 2.5 times that of other seven planets.
The surface of the earth is divided into 4 large circle layers, removes the air circle, water circles, and biospheres, as well as rock circles. From the surface to the steward, it can be divided into a crust, mantle, and core core. In general, the rock circle refers to the earth shell, and sometimes the upper half of the mantle is also divided into a rock ring.
The crust is very thin, the main component of the upper rock is a silicone oxide, and the lower rock is mainly the ingredients of silica magnesium oxide. The thicker mantle, the closer the ground, the higher the content of the mantle, and nickel. There is a soft flow layer on the top of the mantle, which is accumulated in a large amount of radioactive substances, and a large amount of heat is released, and the rock is melted to form lava, and the magma originated here. The core core is mainly composed of iron and nickel, the outer core is liquid, and the mainland core is solid. The magnetic field of the earth is derived from the flow of liquid metals in the field. The substance in the crustal mantle did not have a significant demarcation, but the trend of mutual penetration.
rock is a mixture of several minerals, which has a stable solid form. Rock consisting of minerals is called monolithic rocks, such as quartzstones; rocky rocks composed of various minerals, such as granite, composed of minerals such as quartz, long stone and mica.
The classification of rocks is more complicated. According to the principle, the rocks on the earth can be divided into three categories: Huasai (called magma rock), metamorphic rock, sedimentary rock. These three types of rocks can be transformed with each other under certain conditions.
Huami is formed after the magma cooling, basalt and granite is the most typical fire. Variant Rock is some rock under high temperature and high pressure, the mineral ingredients or structures in the rock have changed, resulting in new rocks, marble belongs to metamorphic rocks. Sedimentary rock is a variety of minerals in depositionThe rock formed under the lower, including limestone, sandstone, shale, etc., which are spread over the surface of the Earth, and most biocent stone and minerals are located in sedimentary rocks.
To say, they are constructed from atoms, and the type of atom is divided into more than 100 kinds of elements, and there are more than 90 natural elements on the Earth. The rocks on the earth are basically containing silica (SiO2), and also contains magnesium, aluminum, calcium, and iron. According to statistics, only the seven elements of oxygen, magnesium, iron, silicon, sulfur, aluminum, calcium account for 97% of the total quality of the earth, and the rocks on the earth are mainly composed of these elements.
From the origin of the solar system The sun accounts for the absolute domination in the solar system, the quality of the sun accounts for 99% of the total mass of all materials in the sun, the origin of the sun It is the origin of the solar system, and other small cities such as eight major planets are the attachment of the sun. About the origin of the solar system, the main point of view is the nebula. The earliest people who put forward this view were German philosopher Kant, but did not cause any repercussions at the time, and then Laplas put forward more perfect theories from mathematics and mechanical perspectives, which was officially accepted. The earth and the sun are almost born in 45 billion years ago, the celestial body in the sun and the solar system originated from the same necrunal. The nebula is composed of thin gases and dust, which is mainly hydrogen, followed by helium, and dust consists of metal and non-metal particles. Under the action of gravity, these gases, dust converge group, in the mutual collision, the more larger, the temperature pressure is getting higher and higher, and finally ignited the hydrogen polymeration reaction, so a star born. The remaining substances on the original star plate form a planet and other small celestial bodies.
As shown in the figure above, the sun is born in the sun in the solar system.
The stars in the Galaxy line estimate have 200 billion, many of which are multi-star system, of which 75% are two star systems, which are stars system composed of two stars. This condition is difficult to exist. Planet. Take the solar system as an example, Jupiter’s ingredients are very similar to the ingredients of the sun. If the quality of Jupitar is more than about 85 times, Jupiter will become a star, not the current gaseous planet. Fortunately, the beginning of the solar system, Jupiter did not have enough quality to convert to a star, otherwise the solar system will also be a two-star system, and it is estimated that there is no one thing in the earth.
The data returned by the planet detector indicates that gaseous planets such as Jupiter, Saturn also have solid cores. If Jupitar throws the external hydrogen and helium and other gaseous substances, the remaining cores are actually a rocky celestial body. The sun is a high-temperature plasma, in fact, the sun also has a solid iron nickel core.
The rock planet is closer to the sun, while the gaseous planet is far from the sun, because hydrogen isElements such as helium are easily volatilized, and under long-term irradiation of solar radiation, they are driven to the outside of the solar system. This is also very good to understand the distribution of class planets and wooden planets in the solar system. Everything began in the explosion Introduction to the Bacterials, everyone should have another doubts. Which is the iron core? And the rock is mainly composed of a fixed number of elements? This has to start from the extent and elements of the elements in the universe (the relative content of the element, usually as a reference silicon element). Existing evidence shows that the universe is likely to originate from a large explosion. With the expansion of the universe, the temperature gradually decreases, and the basic particles begin to form an atom, the simplest, most quantity is a hydrogen atom. These hydrogen elements form the first batch of stars in the universe, and other lighter elements are born in the large furnace of the star in the large furnace of the star. Usually, the output of carbon, nitrogen, and oxygen is relatively large during the star nuclear fusion reaction. Because iron is the highest, it is difficult to generate nuclear reactions, so the star plant can only stop in iron. Other elements that are heavy than iron are born at the moment of star death. It is the moment of supernova outbreaks, and the supernova outbreak is one of the most strong explosions in the universe. Only under such high temperature and high pressure conditions can be agglomerated, and the silver element of silver is allowed.
The picture above shows the remains after the burst outbreak
Whether it is the universe explosion, or the star explosion, the formation of the rock is related to the explosion. Humans have found more than 100 elements in the universe. In addition to hydrogen, other elements are not formed inside the star, which is formed at the time of star explosion.
What is the composition of the rock has been destined, and the abundance of the elements in the universe and its chemical properties determine the possible types of rocks. Due to the formation of gold, silver and other heavy elements in the universe, they are small in the universe, and the gold content in rock minerals on the earth is not too high. The iron element is high in the universe, and is still growing, because not only light elements will be gadgetable to iron, and the heavy elements will decline to iron. The star is constantly changing hydrogen into helium, so the abundance of helium is also high in the universe. According to the quality, 71% of the universe is hydrogen, 27% is helium, and the remaining 2% is other elements.
The above figure shows the abundance distribution of some elements in the universe The abundance of the element in the universe is related to the synthesis process of the element in the star. The stability of the atomic nuclear structure of the element is related. Typically the abundance of an atomic number is much higher than that of an adjacent odd element; a multiplier having a mass of 4, has a higher abundance. The world is so wonderful, but it seems that there is a connection between things that the wind and horses are not in. From the stone era to the Iron Age, the development process of human civilization has actually contacted the distribution law of the elements in the universe, and the formation of rocks is alsoThis is related. A friend who loves science, welcome to pay attention to me.