伊丁陨石Iddingsite meteorite

陨石猎人王彩军

<ul><li>伊丁石陨石（Iddingsite meteorite）是在新疆哈密淖毛湖戈壁滩新发现的一个新的陨石陨落种类，符合陨石的陨落特质需要存在陨落的高温摩擦表面熔融气印，和空中爆炸解里，在这类陨石中发现有橄榄石的色变，橄榄石与撞击熔融的撞击角砾岩交融，形成可观测的撞击角砾岩和橄榄石溶流斑晶。‘伊丁石’的元素是橄榄石的一种次生变化产物，是由粘土矿物、铁的氧化物及其氢氧化物组成的混合物。伊丁石在深成岩中是不存在的，但却可在陨石中产出。人们根据在火星陨石中发育的伊丁石获得的同位素年龄，推断液态水开始出现在火星表面或者接近火星地表的时间。伊丁石橄榄斑晶陨石的特质；系玄武岩的撞击熔融，石体为碎粒的橄榄石再熔合相态，并有坠落的爆炸解里和表面的溶流熔流纹，它有别于地球的火成岩浆高温熔流凝结。</li></ul>It is a new type of meteorite found in the Gobi desert of Maohu lake, Hami, Xinjiang. It is in line with the meteorite's characteristics that there is a high temperature friction surface melting gas stamp of the meteorite, and in the air explosion solution, olivine color change is found in this type of meteorite, olivine blends with the impact melting breccia, forming an observable impact breccia and olivine solution phenocryst.The element of yidingshi 'is a secondary change product of olivine, which is a mixture of clay minerals, iron oxides and their hydroxides. It does not exist in plutons, but it can be found in meteorites. Based on the isotopic ages of the illites developed in Martian meteorites, the time when liquid water began to appear on or near the surface of Mars was inferred. The characteristics of yidingshi olivine phenocryst meteorite are the impact melting of basalt, the rock body is in the form of broken olivine remelting phase, and there are falling explosion solutions and surface melt flow patterns, which is different from the high temperature melt flow condensation of the earth's igneous magma. 伊丁石是在水参与的情况下，玄武岩风化的产物。由于它经常交代玄武岩中的橄榄石斑晶，伊丁石亦经常呈斑晶状产出。它是一种假象，由最初的橄榄石经历多个结构及成分的变化阶段而形成。Yidingshi is the product of basalt weathering in the presence of water. Because of its frequent replacement of olivine phenocrysts in basalt, yidingshi is also often phenocryst like. It is a kind of false image, which is formed by the initial olivine through many stages of structure and composition changes. 几何物理特征伊丁石陨石要符合陨石陨落的几何物理特征。1化学成分和几何物理表象2地质发生过程3晶体结构Geometrical and physical characteristicsYidingshi meteorite should conform to the geometrical and physical characteristics of meteorite falling.1. Chemical composition and geometrical physical representation2 geological process3 crystal structure 因为伊丁石的结构及成分在不断连续变化，它没有一个确定的结构及成分。它的化学式大致可以用 MgO * Fe2O3 * 4 H2O 来表述，其中Ca和Mg是可以类质同象置换的。伊丁石的地质发生对象限于喷出岩和潜火山岩。中文名伊丁石陨石外文名Iddingsite meteorite化学式MgO * Fe2O3 * 4 H2O属性橄榄石次生变化产物内部物质含橄榄石红伊丁单质铁等稀有物质颜色多以红褐色为主中文名 伊丁石陨石外文名 Iddingsite meteorite别称 天宝石分类行星Because the structure and composition of yidingshi are changing continuously, there is no definite structure and composition. Its chemical formula can be roughly expressed by MgO * Fe2O3 * 4H2O, in which Ca and Mg can be replaced by isomorphism. The geological objects of yidingshi are limited to extrusive rocks and subvolcanic rocks.Chinese nameYidingshi meteoriteForeign nameIddingsite meteoritechemical formulaMgO * Fe2O3 * 4 H2OPropertiesThe internal substances of secondary change products of olivine contain rare substances such as olivine red Yiding ironColorMostly reddish brownChinese Name: yidingshi meteoriteForeign nameAnother name is "Heaven jewel"Classification planet 几何物理特征化学成分地质发生过程晶体结构 Geometrical physical characteristics chemical composition geological process crystal structure 伊丁石简介伊丁石（Iddingsite）是橄榄石的一种次生变化产物，是由粘土矿物、铁的氧化物及其氢氧化物组成的混合物。伊丁石在深成岩中是不存在的，但却可在陨石中产出。人们根据在火星陨石中发育的伊丁石获得的同位素年龄，推断液态水开始出现在火星表面或者接近火星地表的时间。伊丁石是在水参与的情况下，玄武岩风化的产物。由于它经常交代玄武岩中的橄榄石斑晶，伊丁石亦经常呈斑晶状产出。它是一种假象，由最初的橄榄石经历多个结构及成分的变化阶段而形成。因为伊丁石的结构及成分在不断连续变化，它没有一个确定的结构及成分。它的化学式大致可以用 MgO * Fe2O3 * 4 H2O 来表述，其中Ca和Mg是可以类质同象置换的。伊丁石的地质发生对象限于喷出岩和潜火山岩。伊丁石陨石中的橄榄石是物理温变的特征，橄榄石的氧化硅物质称为‘伊丁石’，陨石中的撞击红色角砾岩是铁的氧化物玄武岩，伊丁石陨石必须符合陨石陨落的特征‘熔融，气印，解里，溶流，’才可称为陨石，是有别于地球喷出岩和潜火山岩物态。伊丁石陨石必须要有陨落熔融的物理特征。陨石特征古代世界上有个宝石之王“天宝石”的传说，随着上世纪欧美科学家对全球唯一发现的一个来自火星的橄榄石陨石研究，经过欧美国家跨学科的长期研究后，科学界一致确认了一种新名词“伊丁石”。这是可以确定火星橄榄石陨石最重要的标志。根据“伊丁石”和“天宝石”一样罕见，一样来自外太空的橄榄岩陨石，很可能就是同一种物体。Introduction to yidingshiAs a secondary change product of olivine, idingsite is a mixture of clay minerals, iron oxides and hydroxides. It does not exist in plutons, but it can be found in meteorites. Based on the isotopic ages of the illites developed in Martian meteorites, the time when liquid water began to appear on or near the surface of Mars was inferred. Yidingshi is the product of basalt weathering in the presence of water. Because of its frequent replacement of olivine phenocrysts in basalt, yidingshi is also often phenocryst like. It is a kind of false image, which is formed by the initial olivine through many stages of structure and composition changes. Because the structure and composition of yidingshi are changing continuously, there is no definite structure and composition. Its chemical formula can be roughly expressed by MgO * Fe2O3 * 4H2O, in which Ca and Mg can be replaced by isomorphism. The geological objects of yidingshi are limited to extrusive rocks and subvolcanic rocks. The olivine in the yidingshi meteorite is the characteristic of physical temperature change. The silicon oxide material of olivine is called yidingshi. The impact red breccia in the meteorite is the oxide basalt of iron. The yidingshi meteorite can be called meteorite only if it conforms to the characteristics of meteorite falling: melting, gas imprinting, dissolution and flow. It is different from the earth extrusive rock and subvolcanic rock.Yidingshi meteorite must have the physical characteristics of falling and melting.Meteorite characteristicsThere is a legend about the king of gems in the ancient world. With the only olivine meteorite from Mars discovered by European and American scientists in the last century, after a long-term interdisciplinary research in European and American countries, the scientific community unanimously confirmed a new term "yidingshi". This is the most important sign to identify the Martian olivine meteorite. According to the fact that "yidingshi" is as rare as "Tianbao" and the peridotite meteorite from outer space is probably the same object. 主编陨石猎人王彩军翻译王彩军图片提供王彩军Chief editor: meteorite Hunter Wang CaijunTranslation: Wang CaijunPicture provided by Wang Caijun