| Uranium Series Chronology of the Late Pleistocene Basalt from the Longgang Volcanoes, Jilin Province |
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| 作者姓名： | YU Fusheng HAN Song MA Zhibang and XIE Ruijie Institute of High Energy Physics Chinese Academy of Sciences Beijing Key Laboratory for Hydrocarbon Accumulation Mechanism Ministry of Education University of Petroleum Beijing Institute of Geology and Geophysics Chinese Academy of Sciences Beijing |
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| 作者单位： | YU Fusheng 1，2，HAN Song 1，MA Zhibang 3 and XIE Ruijie 2 1 Institute of High Energy Physics，Chinese Academy of Sciences，Beijing 100039;2 Key Laboratory for Hydrocarbon Accumulation Mechanism，Ministry of Education，University of Petroleum，Beijing 102249 3 Institute of Geology and Geophysics，Chinese Academy of Sciences，Beijing 100029 |
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| 摘 要： | 1 IntroductionThe Longgang volcanic cluster located in the middle partof Longgang Mountain is one of the active volcanoes innortheast China, potentially hazardous of explosion in thefuture (Fan et al., 2002). Within an area of 1700 km2, thereare about 160 volcanic cones, craters and maars (Ou, 1984).Among these volcanoes, the Jinlongdingzi and Dayizishanvolcanoes which are well studied have experiencedrepetitious eruptions (Wang and Jin, 1999). Detailedresearch on their eruption cycles is …
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| 关 键 词： | 铀 地质年代学 测定方法 更新世 玄武岩 吉林 龙岗火山 |
Uranium Series Chronology of the Late Pleistocene Basalt from the Longgang Volcanoes, Jilin Province |
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| Authors: | YU Fusheng HAN Song MA Zhibang and XIE Ruijie Institute of High Energy Physics Chinese Academy of Sciences Beijing Key Laboratory for Hydrocarbon Accumulation Mechanism Ministry of Education University of Petroleum Beijing Institute of Geology and Geophysics Chinese Academy of Sciences Beijing |
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| Abstract: | Abstract 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. |
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| Keywords: | U-series component chronology late Pleistocene volcanic eruption Longgang Jilin Province |
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