Reconstructing the eruptive history of a monogenetic volcano through a combination of fieldwork and geophysical surveys: the example of Puig d’Àdri (Garrotxa Volcanic Field)

2016 ◽  
Vol 173 (6) ◽  
pp. 875-888 ◽  
Author(s):  
Dario Pedrazzi ◽  
Xavier Bolós ◽  
Stéphanie Barde-Cabusson ◽  
Joan Martí
Keyword(s):  
Volcanic Field ◽  
Eruptive History ◽  
Monogenetic Volcano ◽  
Geophysical Surveys ◽  
History Of ◽  
Garrotxa Volcanic Field

Eruptive history of Neapolitan volcanoes: constraints from 40Ar–39Ar dating

2012 ◽  
Vol 150 (3) ◽  
pp. 412-425 ◽  
Author(s):  
CLAUDIO SCARPATI ◽  
ANNAMARIA PERROTTA ◽  
SIMONE LEPORE ◽  
ANDREW CALVERT
Keyword(s):  
Volcanic Field ◽  
Campi Flegrei ◽  
Campanian Ignimbrite ◽  
Pyroclastic Deposits ◽  
Eruptive History ◽  
New Period ◽  
History Of ◽  
Tephra Layers ◽  
The City ◽  
Eruptive Cycles

AbstractThe city of Naples can be considered part of the Campi Flegrei volcanic field, and deposits within the urban area record many autochthonous pre- to post-caldera eruptions. Age measurements were carried out using 40Ar–39Ar dating techniques on samples from small monogenetic vents and more widely distributed tephra layers. The 40Ar–39Ar ages on feldspar phenocrysts yielded ages of c. 16 ka and 22 ka for events older than the Neapolitan Yellow Tuff caldera-forming eruption (15 ka), and ages of c. 40 ka, 53 ka and 78 ka for events older than the Campanian Ignimbrite caldera-forming eruption (39 ka). The oldest age obtained is 18 ka older than previous dates for pyroclastic deposits cropping out along the northern rim of Campi Flegrei. The results of this study allow us to divide the Campi Flegrei volcanic history into four main, geochronologically distinct eruptive cycles. A new period, the Paleoflegrei, occurred before 74–78 ka and has been proposed to better discriminate the ancient volcanism in the volcanic field. The eruptive history of Campi Flegrei extends possibly further back than this, but the products of previous eruptions are difficult to date owing to the lack of fresh juvenile clasts. These new geochronological data, together with recently published ages related to young volcanic edifices located in the city of Naples (Nisida volcano, 3.9 ka) testify to persistent activity over a period of at least 80 ka, with an average eruption recurrence interval of ~555 years within and adjacent to this densely populated city.

scholarly journals Eruptive history and 40Ar/39Ar geochronology of the Milos volcanic field, Greece

2020 ◽  
Author(s):  
Xiaolong Zhou ◽  
Klaudia Kuiper ◽  
Jan Wijbrans ◽  
Katharina Boehm ◽  
Pieter Vroon
Keyword(s):  
Growth Rate ◽  
High Resolution ◽  
Major Element ◽  
Phase 1 ◽  
Volcanic Eruptions ◽  
Volcanic Field ◽  
Volcanic Complex ◽  
Eruptive History ◽  
Continental Arcs ◽  
History Of

Abstract. High-resolution geochronology is essential to determine the growth-rate of volcanoes, which is one of the key factors to establish the periodicity of explosive volcanic eruptions. However, there are less high-resolution eruptive histories (> 106 years) determined for long-lived submarine arc volcanic complexes than for subaerial complexes, since the submarine volcanoes are far more difficult to observe than subaerial ones. In this study, high-resolution geochronology and major element data are presented for Milos Volcanic Field (VF) in the South Aegean Volcanic Arc, Greece. The Milos VF has been active for over 3 Myrs, and the first two million years of its eruptive history occurred in a submarine setting that has emerged above sea level nowadays. The long submarine volcanic history of the Milos VF makes it an excellent natural laboratory to study the growth-rate of a long-lived submarine arc volcanic complex. This study reports twenty-one new high-precision 40Ar/39Ar ages and major element compositions for eleven volcanic units of the Milos VF. This allows us to refine the volcanic evolution of Milos into nine phases and five volcanic quiescence periods of longer than 200 kyrs, on the basis of age, composition, volcano type and location. Phase 1–5 (~ 3.34–1.60 Ma) contributed ~ 85 % by volume to the Milos VF, whereas the volcanoes of Phase 6–9 only erupted small volumes (2–6 km3 in DRE) rhyolitic magmas. Although there are exceptions of the felsic cone volcanoes of Phase 1–2, in general the Milos VF becomes more rhyolitic in composition from Phase 1 to Phase 9. In particular, the last three phases (Phase 7–9) only contain rhyolites. Moreover, the high-resolution geochronology suggests that there are at least three periods of different long term volumetric volcanic output rate (Qe). In the Milos VF, the Qe varies between 0.2 and 6.6 × 10−5 km3 yr−1, 2–3 orders of magnitude lower than the average for rhyolitic systems and continental arcs.

scholarly journals The eruptive history of the Tequila volcanic field, western Mexico: ages, volumes, and relative proportions of lava types

2004 ◽  
Vol 67 (5) ◽  
pp. 391-414 ◽  
Author(s):  
Catherine B. Lewis-Kenedi ◽  
Rebecca A. Lange ◽  
Chris M. Hall ◽  
Hugo Delgado-Granados
Keyword(s):  
Volcanic Field ◽  
Eruptive History ◽  
Western Mexico ◽  
History Of

scholarly journals The eruptive history of the Tequila volcanic field, western Mexico: ages, volumes, and relative proportions of lava types

2005 ◽  
Vol 67 (7) ◽  
pp. 694-694 ◽  
Author(s):  
Catherine B. Lewis-Kenedi ◽  
Rebecca A. Lange ◽  
Chris M. Hall ◽  
Hugo Delgado-Granados
Keyword(s):  
Volcanic Field ◽  
Eruptive History ◽  
Western Mexico ◽  
History Of

The eruptive history of the Pátzcuaro Lake area in the Michoacán Guanajuato Volcanic Field, central México: Field mapping, C-14 and 40Ar/39Ar geochronology

2018 ◽  
Vol 358 ◽  
pp. 307-328 ◽  
Author(s):  
Susana Osorio-Ocampo ◽  
José Luis Macías ◽  
Antonio Pola ◽  
Silvestre Cardona-Melchor ◽  
Giovanni Sosa-Ceballos ◽  
...  
Keyword(s):  
Volcanic Field ◽  
Central Mexico ◽  
Lake Area ◽  
Field Mapping ◽  
Eruptive History ◽  
History Of

The Pleistocene eruptive history of Mount St. Helens, Washington, from 300,000 to 12,800 years before present

2008 ◽  
pp. 593-627 ◽  
Author(s):  
Michael A. Clynne ◽  
Andrew T. Calvert ◽  
Edward W. Wolfe ◽  
Russell C. Evarts ◽  
Robert J. Fleck ◽  
...  
Keyword(s):  
Before Present ◽  
Eruptive History ◽  
History Of ◽  
Mount St Helens

DECIPHERING THE PYROCLASTIC ERUPTIVE HISTORY OF THE THREE SISTERS VOLCANIC CLUSTER, CASCADE ARC, OREGON, USA

2018 ◽  
Author(s):  
James K. Frye ◽  
◽  
Stephen C. Kuehn ◽  
Eric S. Arrington ◽  
Cameron Jean McNeely ◽  
...  
Keyword(s):  
Cascade Arc ◽  
Eruptive History ◽  
History Of ◽  
Three Sisters
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