摘要
详细地研究了亳县陨石中的主要标型特征。亳县陨石是一块不平衡的普通球粒陨石 ,球粒结构齐全 ,保持原始信息多。对球粒中出现的 2 6种结构类型进行了合理的解释 ,为讨论球粒成因提供了科学依据。对亳县陨石中的几种特殊的标型矿物——指示强还原环境生成的标型矿物张衡矿、指示高压的标型矿物 Wadsleyite和指示高温凝聚产物的标型矿物亚铁尖晶石及 CAI包体的发现均作了详细的研究与讨论。
This article deals with the major typomorphic characteristics of Boxian meteorite. Boxian meteorite is an unequilibrium common chonolite, the chondrule textures are in various shapes, and many origin information is stored. A reasonable explanation to the 26 kinds of the chondrule textures was made in this article, and it provides the discussion on the genesis of chondrule with a scientific proof. Several special typomorphic minerals are studied and discussed in detail:(1)Zhanghengite, a typomorphic mineral indicates a strong reducing environment;(2)Wadsleyite, a typomorphic mineral indicates high pressure environment;(3)Pleonaste and CAI inclusions, as the products of condensation, indicate a high temperature.
出处
《现代地质》
CAS
CSCD
2001年第2期168-174,T001,T002,共9页
Geoscience
关键词
宇宙成因矿物学
毫县陨石
标型特征
模型矿物
球粒结构
genetic mineralogy of the universe
Boxian meteorite
typomorphic characteristic
typomorphic mineral
