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Downsag calderas, ring faults, caldera sizes, and incremental caldera growth
Journal of Geophysical Research: Solid Earth, 1984Not all calderas conform to the currently favored model, in which a cylindrical block subsides as in cauldrons of deeply eroded volcanoes. Some calderas are downsagged structures, a fact deduced mainly from the backtilting of ignimbrite sheets assumed originally to have possessed an outwardly directed slope.
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Calderas and caldera structures: a review
Earth-Science Reviews, 2005Abstract Calderas are important features in all volcanic environments and are commonly the sites of geothermal activity and mineralisation. Yet, it is only in the last 25 years that a thorough three-dimensional study of calderas has been carried out, utilising studies of eroded calderas, geophysical analysis of their structures and analogue modelling
J COLE, D MILNER, K SPINKS
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Bulletin of Volcanology, 2009
This research has been funded by the French ANR project VOLCARISK (contract 06-CATT-013-04).
Merle, Olivier +2 more
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This research has been funded by the French ANR project VOLCARISK (contract 06-CATT-013-04).
Merle, Olivier +2 more
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Fault zone processes during caldera collapse: Jangsan Caldera, Korea
Journal of Structural Geology, 2019Abstract Caldera fault zones, identified in many modern and ancient volcanoes, have been the subject of geological and geophysical observations and of analog and numerical modeling. However, the physicochemical processes in fault zones during a caldera collapse are still poorly understood. Here, we present field observations from a caldera fault zone
Chang-Min Kim +7 more
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Journal of Volcanology and Geothermal Research, 1990
Abstract A study of the formation of Krakatoan-type calderas indicates that they probably form by chaotic collapse. The energy required to form these calderas by explosive decapitation of the volcano is seldom available during caldera-forming eruptions.
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Abstract A study of the formation of Krakatoan-type calderas indicates that they probably form by chaotic collapse. The energy required to form these calderas by explosive decapitation of the volcano is seldom available during caldera-forming eruptions.
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1965
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Proceedings of the Geologists' Association, 1964
Abstract From a brief field examination coupled with a study of air-photographs, a caldera has been recognised on Kilombe Hill (Eldalat). It is considered to be the surface expression of a deep-seated cauldron subsidence—a caldera of Glencoe type. The rock types are briefly described.
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Abstract From a brief field examination coupled with a study of air-photographs, a caldera has been recognised on Kilombe Hill (Eldalat). It is considered to be the surface expression of a deep-seated cauldron subsidence—a caldera of Glencoe type. The rock types are briefly described.
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