Journal of Geography (Chigaku Zasshi)
Online ISSN : 1884-0884
Print ISSN : 0022-135X
ISSN-L : 0022-135X
Special Issue on “Geology and Recent Eruptions of Irosin Caldera and Bulusan Volcano, Southern Luzon, Philippines (Part II)”
Overview of the Special Issue on “Geology and Recent Eruptions of Irosin Caldera and Bulusan Volcano, Southern Luzon, Philippines”
Mitsuru OKUNORenato U. SOLIDUM Jr.Ma. Hannah T. MIRABUENOChristopher G. NEWHALLNobuo GESHIToshihiko SUGAIAkiko TANAKATetsuo KOBAYASHI
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2014 Volume 123 Issue 5 Pages 733-738

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Abstract

 The Irosin caldera and Bulusan volcano in the Bulusan Volcanic Complex (BVC) are located at the southeastern end of Luzon Island, the Philippines. This is an overview of all of the papers in the special issue “Geology and Recent Eruptions of Irosin Caldera and Bulusan Volcano, Southern Luzon, Philippines: Parts I and II” and related studies. Moriya (2014) tentatively outlines the evolution of 84 volcanoes on the Philippine Islands. Kobayashi et al. (2014a, b) establish the sequence of caldera-forming eruptions. Kobayashi (2014) compares this sequence with that of the Aira caldera in Japan. Danhara et al. (2014) describe the petrography of Irosin ignimbrite and related deposits. Komazawa et al. (2014) reveal a semi-circular feature with a steep gravity gradient in the Bouguer anomalies. Takashima and Kobayashi (2014) obtain 4 thermoluminescence (TL) ages of 36 ± 8, 38 ± 10, 33 ± 8, and 45 ± 10 ka for ignimbrite and co-ignimbrite ash falls. Mirabueno et al. (2014) identify 1 pyroclastic flow and 12 fallout deposits, including 5 possible fallout deposits, intercalated with lahars and fluvial sediments within the caldera. Kinoshita and Laguerta (2014) introduce image recording of volcanic clouds for managing volcanic hazards. Delos Reyes et al. (2014) present the distribution and petrography of fallout tephra from the 2006-2007 eruptions. Taguchi et al. (2014a) report hot and cold springs around Bulusan volcano.

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© 2014 Tokyo Geographical Society
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