火山型とその地域別個数比

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書誌事項

タイトル別名
  • Volcano Types and Their Global Population Percentages
  • カザンガタ ト ソノ チイキベツ コスウヒ

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抄録

As an attempt to demonstrate the regional difference in volcanism in terms of morphology and to find out a general rule of the developmental sequence of composite volcanoes, in this paper, volcano types and their population have been preliminarily studied, based on the data included in the List of the Wrorld Active Volcanoes (a draft edited by Katsui, 1971). Among total 830 volcanoes listed, 699 volcanoes are well described to study the volcano types. The 699 volcanoes are classified into 57 types according to their specific combination and developmental sequence of the simple volcanoes of which each volcano is composed. Each type is here called a volcano type and is expressed by the volcano-morphologic formula, which is deined as an arrangement of the abbreviations of simple volcanoes in order of their formation. The 57 volcano types are grouped into the following six volcano series according both to the type of the oldest simple volcano (usually the main cone) and to the existence of caldera: mixed (strato) volcano series [M--], mixed volcano with caldera series [MC--], shield volcano series [S--], shield volcano with caldera series [SC--], caldera volcano series [C--], and monogenetic volcano group series [G]. Global population percentages of the volcanoes included in each volcano series are 62%, 10%, 11%, 3%, 7%, and 6%, in the above order, respectively.

収録刊行物

  • 火山.第２集

    火山.第２集 22 (1), 27-40, 1977

    特定非営利活動法人 日本火山学会

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