Feasibility of lava-heated underlying sediment OSL chronology in age determination of lava effusion since the Late Pleistocene: Confirmation from lava 40Ar/39Ar chronology

This study reports the Ar-Ar dating results for the volcanic rocks from small volcanoes(oreum) of the Hallasan Nature Reserve. According to the age of 40 Ar/ 39 Ar, the volcanic activity of the Hallasan Natural Reserve was started from about 192 ka ago. The basaltic trachyandesite and trachyte located in the Y valley near the Eorimok in the western part of the Hallasan Natural Reserve represent an age of about 191~192 ka, showing the oldest record of volcanic activity in the Hallasan Natural Reserve. In the Hallasan Natural Reserve, the small volcanoes older than 100 ka are Y Valley in Eorimok area (192±5 and 191±5 ka), Dongsu-Ak (184±19 ka), Mansedongsan (153±5 ka), Janggumok-Orum (135±6 ka), Eoseungsaengak (123±9 ka), Samgagbong (105±2 ka). And the small volcanoes younger than 100 ka are Witbangae-

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Feasibility of lava-heated underlying sediment OSL chronology in age determination of lava effusion since the Late Pleistocene: Confirmation from lava 40Ar/39Ar chronology

Cited by 2 publications

References 39 publications

Geologic characteristics of Jeju Samdasoo watershed in Jeju Island, Korea (I): Regional surface geology and volcanic activities

Geologic characteristics of Jeju Samdasoo watershed in Jeju Island, Korea (I): Regional surface geology and volcanic activities

Volcanic Activity of the Volcanoes in the Hallasan Natural Reserve, Jeju Island, Korea

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