Uranium Series Chronology of the Late Pleistocene Basalt from the Longgang Volcanoes, Jilin Province  

作　　者：YUFusheng HANSong MAZhibang XIERuijie 

机构地区：[1]InstituteofHighEnergyPhysics,ChineseAcademyofSciences,Beijing100039／／KeyLaboratoryforHydrocarbonAccumulationMechanism,MinistryofEducation,UniversityofPetroleum,Beijing1022493 [2]InstituteofHighEnergyPhysics,ChineseAcademyofSciences,Beijing100039 [3]InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029 [4]KeyLaboratoryforHydrocarbonAccumulationMechanism,MinistryofEducation,UniversityofPetroleum,Beijing1022493

出　　处：《Acta Geologica Sinica(English Edition)》2005年第2期211-214,共4页地质学报（英文版）

基　　金：the Chinese Academy of Sciences(KJCXN01).

摘　　要：The Longgang volcanic cluster located in Jilin Province belongs to one of the active volcanic regions in northeast China, and has been active in modern times. In view of the multiple eruptions in history, it is very important to determine the age of each eruption for evaluating the volcanic hazards. Two alkaline basalt samples taken from Dayizishan and Diaoshuihu were analyzed with the U-series component dating after magnetic separation. The ages of the two samples are (71±9) ka and (106±13) ka B.P., respectively. These data indicate that there existed intensive eruption activities during the late Pleistocene.The Longgang volcanic cluster located in Jilin Province belongs to one of the active volcanic regions in northeast China, and has been active in modern times. In view of the multiple eruptions in history, it is very important to determine the age of each eruption for evaluating the volcanic hazards. Two alkaline basalt samples taken from Dayizishan and Diaoshuihu were analyzed with the U-series component dating after magnetic separation. The ages of the two samples are (71±9) ka and (106±13) ka B.P., respectively. These data indicate that there existed intensive eruption activities during the late Pleistocene.

关 键 词：U-series component chronology late Pleistocene volcanic eruption Longgang Jilin Province 

分 类 号：P588.145[天文地球—岩石学] P534.631[天文地球—地质学]