Toward a high-resolution 40Ar/39Ar geochronology of the Tatun Volcano Group, Taiwan

Abstract

Section: Volcanology, Geochemistry, PetrologySession: EARTHTIME Geochronology II Posters: abstract V31A-2306The Tatun Volcano Group [TVG] consists of five volcanic subgroups of which 30 edifices have been identified, all in close proximity to the densely populated Taipei Basin to its south (Song et al., 2000, Journal of the Geological Society of China, in Chinese). Evidence of eruptions is in the form of mostly lava flows, with pyroclastic flows, and ash deposition (Tsai et al., 2010, TAO), consistent with vulcanian and plinian eruptions that are only minimally preserved because of the region’s high weathering rate (Belousov et al., 2010, Journal of Volcanology and Geothermal Research). The TVG is made up of calc...link_to_OA_fulltex