K-Ar Geochronology of Mesozoic Mafic Dikes in Shandong Province, Eastern China： Implications for Cru

• 作 者: LIUShen HURuizhon ZHAOJunhong
• 机 构: InstituteofGeochemistry
• 出 处: 地质学报：英文版
• 发表日期: 2004年6期
• 关键词: 地壳扩展 铁镁质岩脉 钾-氩年代测定 地幔热羽 山东 断层 中生代 <Keyword>crustal extension mafic dike
• 基金项目: This study was supported jointly by the Project of Knowledge Innovation of Chinese Academy of Sciences

Based on K-Ar isotope analyses, Mesozoic mafic (and alkali ultramafic) dikes from western and eastern Shandong Province, China, are dated at 88.2±1.70 Ma to 169.5±3.7 Ma with the majority of ages ranging from 90 Ma to 140 Ma. The emplacement of