日本地球惑星科学連合2014年大会

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ポスター発表

セッション記号 S (固体地球科学) » S-VC 火山学

[S-VC53_28PO1] 火山とテクトニクス

2014年4月28日(月) 18:15 〜 19:30 3階ポスター会場 (3F)

コンビーナ:*下司 信夫(産業技術総合研究所 地質情報研究部門)、西村 卓也(京都大学防災研究所)、古川 竜太(産業技術総合研究所地質調査総合センター)、三浦 大助(財団法人電力中央研究所 地球工学研究所 地圏科学領域)、長谷川 健(茨城大学理学部地球環境科学コース)、土志田 潔(一般財団法人 電力中央研究所 地球工学研究所 地圏科学領域)

18:15 〜 19:30

[SVC53-P01] Identification and Geology of Taftan volcano Calderas, Sistan and Baluchestan, Southeast of Iran

*Biabangard Habib1 (1.Department of Geology, Sistan and Baluchestan University of Zahedan, Iran)

キーワード:Taftan Volcano, Makran belt, Anjerk caldera, Tamandan caldera, Geochemical evaluation, Iran

The Taftan volcano, Sistan and Baluchestan province, SE Iran, is above 4050 m sea level and currently dormant, showing fumarolic activity near the summit. This volcano is located in a structural zone along the subduction of Oman oceanic crust below the Eurasia plate. Large volcanic centers including Chah-Shahe, Bazman and Taftan in Iran and Soltan in Pakistan have been developed during the Quaternary. Anjerk and Tamandan are two calderas from of Taftan volcano that identified for the first time. Theses calderas are mostly composed of pyroclastics, lava flows, ignimbrites and tuffs. Various volcanic eruptions had occurred during these calderas formation. The exposed lava flows and pyroclastics of these calderas mainly consist of andesitic and dacitic in compositions. The geochemical evaluation of the major and trace element compositions indicate the magma erupted from this volcano show a calk-alkaline trend.