词条 铁陨石
描述: 铁陨石是含有大量铁和镍的陨石。它们被认为是小行星核心的一部分，密度很高，重量也很大。尽管铁陨石只占撞击地球表面的陨石总数的 5%，但在地球上发现的陨石中却几乎有 60% 是铁陨石。其中一个原因是它们更坚固，不像石陨石那样容易风化。
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词条和定义状态： 该术语的英文原始定义已通过天文研究人员和教师的审核 该术语及其定义的译文仍待审核
The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".
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其他语言版本
- 阿拉伯语: النيازك الحديدية
- 孟加拉语: লোহার উল্কাপিণ্ড
- 德语: Eisenmeteoriten
- 英语: Iron Meteorite
- 法语: Météorite ferreuse
- 意大利语: Meteoriti di ferro
- 日语: 隕鉄 (外部链接)
- 巴西葡萄牙语: Meteoritos ferrosos
- 繁体中文: 鐵隕石
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Iron Meteorite
图注： This iron meteorite was originally found in Harriman, Tennessee, USA and is now held in the collection of the Smithsonian Natural History Museum, Washington DC, USA. The total mass of the meteorite was about 30kg. Here we see the interior after the meteorite was cut into pieces.
Iron meteorites are largely composed of an iron-nickel. They also often have a crystalline structure which manifests here as a series of crossing shiny straight lines known as a Widmanstätten pattern. This is thought to have formed as the meteoroid (the object that would eventually fall through the Earth's atmosphere as a meteor and land on the ground as a meteorite) cooled very slowly in the vacuum of space in the early solar system. This led to the growth of this crystalline structure.
来源： Chuck Sutherland
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License: PD 公共领域 图标
