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.
-
Keywords:
- meteorite /
- chemical composition /
- mineralogy /
- Qingdao
-
-
[1] 欧阳自远.小天体撞击与古环境演变[M].武汉:湖北科学技术出版社,1997.[OUYANG Zi-yuan.Impact of Asteroid & Palaeoenvironmental Catastrophe-Study on Six Cenozoic Bolide-Impact events[M].Wuhan:Hubei Scientific and Technologic Press,1997.] [2] Adam Klaus,Richard D Norris,Dick Kroon,et al,Impact-induced mass wasting at the K-T Boundary:Blake Nose,Wastern North Atlantic[J].Geology,2000,28(4):319-322.
[3] Glass B P.Tektites and microtektites:key fact and inferences[J].Tectonics,1990:171-393.
[4] 欧阳自远.天体化学[M].北京:科学出版社,1988:223-229.[OUYANG Zi-yuan,Celestial Chemistry[M].Beijing:Science Press,1988:223 -229.]
[5] WAN Tian-feng,YIN Yan-hong,ZHANG Chang-hou.On the extraterrestrial impact and plate tectonic dynamics:a possible interpretation[C]//Proc.30th Inter.Geol.Congr.,1997,26:87-95,VSP.
[6] Graham A L,Beven A W R,Hutchison R.Catalogue of Meteorites(4th ed)[M].London:Beitish Museum(national history),1995.
[7] 陈永亨,王道德.我国铁陨石研究[J].地球化学,1994,23(增刊):2-9.[CHEN Yong-heng,WANG Dao-de.Studies of meteorites in China[J].Geochimica,1994 ,23(suppl.):119-125.]
[8] 卞德培.我国已知陨石的初步统计[J].地球化学,1978(3):227-233.[BIAN De-pei.Statistics of the known meteorites in China[J].Geochimica,1978 (3):227-233.]
[9] 王道德.铁陨石及中铁陨石的稀有气体同位素丰度和放射性核素活度[J].地球化学,2000,29(5):495-499. [WANG Dao-de.Noble gas isotopic abundances and radionuclide activities of iron meteorites and mesosiderites[J].Geochimica,2000,29(5):495-499.]
计量
- 文章访问数: 1508
- HTML全文浏览量: 180
- PDF下载量: 7