Results 131 to 140 of about 575 (180)
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Quaternary Volcanism of the Central Volcanic Region
New Zealand Journal of Geology and Geophysics, 1964Abstract The main rock types of the Central Volcanic Region of the North Island of New Zealand are distributed in a roughly symmetrical fashion about an axis trending north‐north‐east from Tongariro National Park to near Maketu on the Bay of Plenty. Adjoining the outer margins of the Region are northward‐diverging
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Nature of volcanic gases and volcanic eruption
Bulletin of Volcanology, 19631) The chemical composition of volcanic gases emitted from fumaroles and hot springs represents their stages of the differentiation of magmatic emanation at their effusing points, although the nature of volcanic gases varies with their orifice temperatures and geological environments.
Iwaji Iwasaki +5 more
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Volcanic (Volcanic-Plutonic) Belts
1971In recent years, after the works of Ustiev and his co-workers [Ustiev, 1959, 19631, 19632, 1965; Speranskaya, 1961] on the study of the Okhotsk volcanic belt, this type of structure has gained considerable attention. The distinctive character of vulcanism, its superposition on older structural plans and its apparent independence of geosynclines, has ...
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Volcanic sublimates and volcanic activities
Bulletin of Volcanology, 1963Isao Kayama +4 more
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