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Meteorites & Tektites

A meteorite is a smaller cosmic body (originally a meteoroid) which, due to favorable conditions, landed on the surface of the Earth (or other planets). If a medium-sized or larger meteoroid flies into the Earth's atmosphere, we see a light phenomenon we call a meteor, in the case of greater brightness, a bolide. The speed of meteors in the atmosphere usually reaches from 11 to 72 km / s. [1] The designation micrometeorite is used for small bodies. Most meteorites melt and evaporate as they fly through the Earth's atmosphere. Whether at least part of the body hits the ground depends on several circumstances, the most important of which is the mass of the original meteoroid and the speed at which it entered the atmosphere (at 11 km / s a ​​meteoroid with an original weight of 10 kg can also hit the ground). Another factor is the structure of the meteoroid: iron meteoroids (siderites) melt less as they pass through the atmosphere, so they are more likely to reach the ground. More fragile chondritic meteors usually disintegrate into smaller parts that evaporate more easily; therefore, they can only fall to the ground at high input weights. The last important factor is the height at which the meteor stopped glowing. If it is more than 30 km above the ground, then there is a high probability that the whole body has evaporated in the atmosphere. Tektite is a rock formed by the impact of an extraterrestrial body (meteorite) on the earth's surface. During the impact, a huge amount of energy is released in a short time, which is converted into heat, which results in metamorphic processes, during which the original rocks are transformed into new rock - tektite. Tektite has a predominantly glassy structure and can be compared to natural glass or obsidian. Tektites occur mainly in localities in Southern Bohemia and western Moravia, in Australia, in Southeast Asia, in Ivory Coast, in North America (more precisely in the states of Texas and Georgia). More info

A meteorite is a smaller cosmic body (originally a meteoroid) which, due to favorable conditions, landed on the surface of the Earth (or other planets). If a medium-sized or larger meteoroid flies into the Earth's atmosphere, we see a light phenomenon we call a meteor, in the case of greater brightness, a bolide. The speed of meteors in the atmosphere usually reaches from 11 to 72 km / s. [1] The designation micrometeorite is used for small bodies. Most meteorites melt and evaporate as they fly through the Earth's atmosphere. Whether at least part of the body hits the ground depends on several circumstances, the most important of which is the mass of the original meteoroid and the speed at which it entered the atmosphere (at 11 km / s a ​​meteoroid with an original weight of 10 kg can also hit the ground). Another factor is the structure of the meteoroid: iron meteoroids (siderites) melt less as they pass through the atmosphere, so they are more likely to reach the ground. More fragile chondritic meteors usually disintegrate into smaller parts that evaporate more easily; therefore, they can only fall to the ground at high input weights. The last important factor is the height at which the meteor stopped glowing. If it is more than 30 km above the ground, then there is a high probability that the whole body has evaporated in the atmosphere. Tektite is a rock formed by the impact of an extraterrestrial body (meteorite) on the earth's surface. During the impact, a huge amount of energy is released in a short time, which is converted into heat, which results in metamorphic processes, during which the original rocks are transformed into new rock - tektite. Tektite has a predominantly glassy structure and can be compared to natural glass or obsidian. Tektites occur mainly in localities in Southern Bohemia and western Moravia, in Australia, in Southeast Asia, in Ivory Coast, in North America (more precisely in the states of Texas and Georgia).
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