摘要
毫县陨石的诱发热释光强度为Ｄｈａｊａｌａ陨石的１．３８±０．０２倍，因此它是一颗不平衡普通球粒陨石，分类为ＬＬ３．８．由矿物学和热释光性质反映其冲击相为ｂ．自然热释光等效剂量约为２０７．３±０．４ｋｒａｄ．此值高于绝大多数陨石，反映它曾处于太阳系空间中温度较低的环境或曾接受过异常高的辐射剂量．
The level of induced thermoluminescence (TL) in Boxian chondrite is 1. 38± 0. 02 relativeto the Dhajala meteorite. Based on the subdivision suggested by Sears et al. (1980), the petrologicaltype of Boxian chondrite is 3. 8±0. 1. The shock facies of Boxian chondrite corresponds to facies bbased on TL level and mineralogical creteria. Boxian chondrite has a natural TL level of about 207. 3± 0. 4 krad, much higher than most meteorites. It is very likely that Boxian Chondrite had an unusualhiStory involving high radiation doces and/or very low average temperature in space.
关键词
热释光
陨石
分类
冲击相
长石
thermoluminescence (TL), Boxian chondrite, unequilibrated ordinary chondrite (UOC)
