Special Collection Frontiers in Earth Sciences: Volcanism in the Central Volcanic Zone of the Andes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



1-1-1-1-1-1-1-1-1-1-1-1-1-1


From: Felipe Aguilera Barraza <feaguilera@xxxxxx>


Special Collection Frontiers in Earth Sciences: Volcanism in the Central
Volcanic Zone of the Andes



The Central Volcanic Zone of the Andes (CVZA) comprises the ~14-28°S
segment of the Andes where intense volcanism has been continuously active
since 27 Ma (Late Oligocene). The CVZA is characterized by a thick
continental crust imprinting a particular signature and controlling the
composition of the emitted magmas on the surface. These magmas are
dominated by silicic andesites-to-dacites and by the emission of an
impressive volume of ignimbrites, which dominate the local landscape. The
CVZA covers southern Peru, western Bolivia, northwestern Argentina, as well
as northern Chile and currently has at least 44 active/potentially active
stratovolcanoes, a few active/potentially active calderas, and several
potentially active monogenetic "elds. Despite the relative low frequency
and long recurrence between eruptions compared with other volcanic arcs,
the CVZA history records many catastrophic eruptions including
super-eruptions (> 450 km3 of erupted magma) related to collapse-calderas,
especially in the Altiplano-Puna region (~21-24°S). Some
Pleistocene-to-Holocene examples of important eruptions correspond to the
Soncor eruption of Lascar volcano (~27 ka) which emitted 10-15 km3 of
magma, the VEI â?¥ 6 (> 80 km3) Cerro Blanco caldera eruption at 4.2 ka, or
the VEI 6 (30 km3 volume) eruption of Huaynaputina volcano in 1600 AD.
Research in the CVZA spans a wide spectrum of topics including the origin
and evolution of magmas, the role of the thickness and composition of the
continental crust and of intra-crustal melted magma bodies (Altiplano-Puna
Magma Body) in the composition and location of volcanoes, the evolution of
single volcanic edifices, the evolution of recent eruptive activity, the
chemistry of fluids released from active volcanoes and geothermal fields,
spatio-temporal distribution of volcanism, the relationship between
volcanoes and tectonic structures, the evolution of collapse caldera
systems, volcanic hazards, archaeology, the biology of extremophiles in
volcanic/geothermal environments, and many others. Despite this, the CVZA
still lacks a deep knowledge and understanding of its evolution and the
processes related to its eruptive activity.



This Research Topic is focused on the understanding of the evolution and
impact of volcanism in the Central Volcanic Zone of the Andes from its
formation (Late Oligocene) up to present times, from individual to
multidisciplinary studies spanning a wide spectrum of topics including deep
and shallow magmatic processes, active volcanism, volcanic monitoring,
hazards, risk management, geoheritage and geoconservation, among others.



This Research Topic welcomes articles from original research to reviews on
the following themes:

· Deep magmatic processes;

· Geodynamics related to volcanism;

· Shallow volcanic processes;

· Polygenetic and monogenetic volcanism;

· Geophysics related to volcanism;

· Fluid geochemistry;

· Volcanic monitoring;

· Eruptive processes;

· Volcanic hazards and risks;

· Cultural implications of volcanism;

· Geoheritage and geoconservation.



Keywords: volcanic monitoring, hazard/risk management, backarc volcanism,
Altipano Puna Volcanic Complex, active volcanism



Submission Deadlines:

12 October 2021 - Abstract

15 February 2022 â?? Manuscript



Guest Editors:

Felipe Aguilera

Universidad Catolica del Norte, Chile



Gary Michelfelder

Missouri State University, United States



Pablo Grosse

Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET),
Argentina



Silvina Guzman

Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET),
Argentina

Instituto de Bio y Geociencias del NOA (IBIGEO), Argentina



Marco Taussi

University of Urbino, Italy


1-1-1-1-1-1-1-1-1-1-1-1-1-1

------------------------------


[Index of Archives]     [Yosemite Backpacking]     [Earthquake Notices]     [USGS News]     [Yosemite Campgrounds]     [Steve's Art]     [Hot Springs Forum]

  Powered by Linux