青岛铁陨石的发现及其化学成分和矿物学分析

THE DISCOVERY OF QINGDAO IRON METEORITE AND ITS CHEMIEAL COMPOSITION AND MINERALOGY

摘要: 青岛铁陨石是在2004年5月发现于青岛市城阳区惜福镇,重约30 t。通过初步的化学分析和矿物学分析,发现其铁含量为94.02%,镍含量为5.29%,钴含量为0.45%,主要矿物为铁纹石,局部含有陨磷铁镍石的晶体或集合体,表明它是一块典型的铁陨石。该区历史上没有陨石降落的记载,根据该铁陨石产出在第四系的全新世冲-洪积层中离地表3~4 m的深度处,推断它的降落年代应是全新世。

Abstract: The Qingdao iron meteorite was found in May,2004.Its weight is about 3 ton.It may be the third largest iron meteorite in China.Fe content is 94.02%,Ni content 5.29%,and Co 0.45% in the iron meteorite.The main mineral is kamacite,and crystal and aggregate of schreibersite were also found in the iron meteorite.These minerals are typical of iron meteorite.The iron meteorite occurred in Holocene sediments,so it landed in Holocene.