scholarly journals Understanding the link between circumferential dikes and eruptive fissures around calderas based on numerical and analog models

2016 ◽  
Vol 43 (12) ◽  
pp. 6212-6219 ◽  
Author(s):  
Fabio Corbi ◽  
Eleonora Rivalta ◽  
Virginie Pinel ◽  
Francesco Maccaferri ◽  
Valerio Acocella
Keyword(s):  
Analog Models ◽  
Eruptive Fissures

scholarly journals Thrust–wrench interference tectonics in the Gulf of Cadiz (Africa–Iberia plate boundary in the North-East Atlantic): Insights from analog models

2011 ◽  
Vol 289 (1-4) ◽  
pp. 135-149 ◽  
Author(s):  
João C. Duarte ◽  
Filipe M. Rosas ◽  
Pedro Terrinha ◽  
Marc-André Gutscher ◽  
Jacques Malavieille ◽  
...  
Keyword(s):  
Plate Boundary ◽  
Gulf Of Cadiz ◽  
East Atlantic ◽  
North East ◽  
The North ◽  
Gulf Of Cádiz ◽  
Analog Models

scholarly journals Structural analysis of the Rio Preto fold belt (northwestern Bahia / southern Piauí), a doubly-vergent asymmetric fan developed during the Brasiliano Orogeny

2014 ◽  
Vol 86 (3) ◽  
pp. 1101-1113 ◽  
Author(s):  
FABRÍCIO A. CAXITO ◽  
ALEXANDRE UHLEIN ◽  
LUIZ F.G. MORALES ◽  
MARCOS EGYDIO-SILVA ◽  
JULIO C.D. SANGLARD ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Structural Evolution ◽  
Shear Zones ◽  
Central Compartment ◽  
Strike Slip ◽  
Fold Belt ◽  
Main Structure ◽  
The North ◽  
Brasiliano Orogeny ◽  
Analog Models

The Rio Preto fold belt borders the northwestern São Francisco craton and shows an exquisite kilometric doubly-vergent asymmetric fan structure, of polyphasic structural evolution attributed exclusively to the Brasiliano Orogeny (∼600-540 Ma). The fold belt can be subdivided into three structural compartments: The Northern and Southern compartments showing a general NE-SW trend, separated by the Central Compartment which shows a roughly E-W trend. The change of dip of S2, a tight crenulation foliation which is the main structure of the fold belt, between the three compartments, characterizes the fan structure. The Central Compartment is characterized by sub-vertical mylonitic quartzites, which materialize a system of low-T strike slip shear zones (Malhadinha – Rio Preto Shear Zone) crosscutting the central portion of the fold belt. In comparison to published analog models, we consider that the unique structure of the Rio Preto fold belt was generated by the oblique, dextral-sense interaction between the Cristalândia do Piauí block to the north and the São Francisco craton to the south.

scholarly journals Structural analysis of the eruptive fissures at Mount Etna (Italy)

2011 ◽  
Vol 54 (5) ◽  
Author(s):  
Marco Neri ◽  
Valerio Acocella ◽  
Boris Behncke ◽  
Salvatore Giammanco ◽  
Francesco Mazzarini ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Mount Etna ◽  
Eruptive Fissures

Analog Models for Earth Sciences

2021 ◽  
pp. 856-867
Author(s):  
Francesca Funiciello ◽  
Fabio Corbi
Keyword(s):  
Earth Sciences ◽  
Analog Models

The 2018 rift eruption and summit collapse of Kīlauea Volcano

Science ◽  
2018 ◽  
Vol 363 (6425) ◽  
pp. 367-374 ◽  
Author(s):  
C. A. Neal ◽  
S. R. Brantley ◽  
L. Antolik ◽  
J. L. Babb ◽  
M. Burgess ◽  
...  
Keyword(s):  
Rift Zone ◽  
Kilauea Volcano ◽  
Caldera Collapse ◽  
Flow Volume ◽  
Kīlauea Volcano ◽  
Historical Observation ◽  
Magma System ◽  
Volume Estimates ◽  
Earthquake Moment ◽  
Eruptive Fissures

In 2018, Kīlauea Volcano experienced its largest lower East Rift Zone (LERZ) eruption and caldera collapse in at least 200 years. After collapse of the Pu‘u ‘Ō‘ō vent on 30 April, magma propagated downrift. Eruptive fissures opened in the LERZ on 3 May, eventually extending ~6.8 kilometers. A 4 May earthquake [moment magnitude (Mw) 6.9] produced ~5 meters of fault slip. Lava erupted at rates exceeding 100 cubic meters per second, eventually covering 35.5 square kilometers. The summit magma system partially drained, producing minor explosions and near-daily collapses releasing energy equivalent toMw4.7 to 5.4 earthquakes. Activity declined rapidly on 4 August. Summit collapse and lava flow volume estimates are roughly equivalent—about 0.8 cubic kilometers. Careful historical observation and monitoring of Kīlauea enabled successful forecasting of hazardous events.

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