منابع مشابه
The Miocene Costa Giardini diatreme, Iblean Mountains, southern Italy: model for maar-diatreme formation on a submerged carbonate platform
In this paper we present a model for the growth of a maar-diatreme complex in a shallow marine environment. The Miocene-age Costa Giardini diatreme near Sortino, in the region of the Iblei Mountains of southern Sicily, has an outer tuff ring formed by the accumulation of debris flows and surge deposits during hydromagmatic eruptions. Vesicular lava clasts, accretionary lapilli and bombs in the ...
متن کاملDiatreme Breccias in British Columbia*
INTRODUCTION Over the last decade considerable interest has been expressed in diarreme breccias ofpc~ssible kimberlitic affinity in British Columbia (Fipke, 1983; Fipk.: and Capell, 1983; Grieve, 1981 and 1982; Roberts, et a/., 1980; Woodcock, 1978; etc.). This interest has been heightened by the reported recent discovery of diamonds in pipes north of Golden (Durnmet, rr a / . . 1985; Northcote...
متن کاملThe Human Impact of Volcanoes: a Historical Review of Events 1900-2009 and Systematic Literature Review
Introduction. More than 500 million people live within the potential exposure range of a volcano. The risk of catastrophic losses in future eruptions is significant given population growth, proximities of major cities to volcanoes, and the possibility of larger eruptions. The objectives of this review are to describe the impact of volcanoes on the human population, in terms of mortality, injury...
متن کاملof felsic magmas : news and views
Diapirism has been discredited as a transport mechanism for magmas partly because diapirs seem to be unable to bring magmas to shallow crustal levels (< 10 km) and partly because recent developments in the theory of dyke propagation have shown that sufficiently wide dykes are able to efficiently transport felsic magmas through the crust. However, it is still unclear how felsic dykes grow to wid...
متن کاملMaars to calderas: end-members on a spectrum of explosive volcanic depressions
We discuss maar-diatremes and calderas as end-members on a spectrum of negative volcanic landforms (depressions) produced by explosive eruptions (note—we focus on calderas formed during explosive eruptions, recognizing that some caldera types are not related to such activity). The former are dominated by ejection of material during numerous discrete phreatomagmatic explosions, brecciation, and ...
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ژورنال
عنوان ژورنال: Bulletin of Volcanology
سال: 2017
ISSN: 0258-8900,1432-0819
DOI: 10.1007/s00445-016-1097-1