摘要
本文根据不同产状和不同种类的10块钾长石标本的热释光特性分析表明,钾长石的热释光特性不仅取决于矿物晶体的产状和化学成分。而主要还取决于晶体精细结构的特征。钾长石的热释光特性既有差异又存在许多共性,它们存在共同的高温区热释光峰,矿物自身的内辐射场恒定,同时对β辐射的热释光响应敏灵度很高,对阳光的敏感度也很高,这几点共性正是钾长石可以作为热释光断代的基础。
TL technique is an important approach to exploring the fine structure ofa mineral. TL characteristic analysis of ten species of K-feldspar shows thatthe TL properties of K-feldspars are dependent not only on their chemicalcomposition and mode of occurrence, but also on their fine structure. Thecommon properties of K-feldspars provide the basis for TL dating. K-feldsparshave a high TL response to β-irradiation and are highly sensitive to lightbleaching. In TL research on K-feldspars, much attention should be paid toabnormal fading. In this aspect K-feldspars are different from quartz and calcite.
出处
《矿物学报》
CAS
CSCD
北大核心
1989年第1期82-88,共7页
Acta Mineralogica Sinica
关键词
钾长石
热释光
thermoluminescene
K-feldspar
