Monogenetic volcanism of the Michoacán-Guanajuato Volcanic Field: Maar craters of the Zacapu basin and domes, shields, and scoria cones of the Tarascan highlands (Paracho-Paricutin region) Pre-meeting field guide for the 5th International Maar Confer
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Abstract
Monogenetic volcanism of the Michoacán-Guanajuato Volcanic Field: Maar craters of the Zacapu basin and domes, shields, and scoria cones of the Tarascan highlands (Paracho-Paricutin region)
A pre-meeting fieldtrip (November 13-17) prior to the 5th International Maar Conference (5IMC-IAVCEI), Querétaro, Mexico, November 17-22, 2014
Leaders: Claus Siebe, Marie-Noëlle Guilbaud, Sergio Salinas, Pooja Kshirsagar, Magdalena Oryaëlle Chevrel, Juan Ramón de la Fuente, Athziri Hernández Jiménez, Lourdes Godínez
Departamento de Vulcanología, Instituto de Geofísica, Universidad Nacional Autónoma de México
csiebe@geofisica.unam.mx, m.guilbaud@geofisica.unam.mx, sss@geofisica.unam.mx, pooja6vulcan@gmail.com,
oryaelle.chevrel@gmail.com, jrdfr86@gmail.com, axiriss@gmail.com, lgodinez@unam.mx
ABSTRACT
The Michoacán-Guanajuato Volcanic Field in the Trans-Mexican Volcanic Belt contains the largest concentration
of monogenetic vents on Earth associated with a subduction-related continental arc, holding more than 1,100 edifices
consisting of abundant scoria cones, about 300 “enigmatic” shields, and ~22 maars. Paricutin (1943-1952)
is the youngest volcano of this field and together with Jorullo (1759-1774) the only monogenetic volcano formed
since the Spanish conquest (1519-1521) in the Trans-Mexican Volcanic Belt. Both volcanoes are said to be monogenetic
because they were produced entirely by single eruptions and hence will presumably never erupt again. Nonetheless,
another monogenetic eruption will certainly occur again and form a new scoria cone on Mexican ground.
In order to minimize losses of life and property it is desirable to learn more about these types of eruptions and
with this knowledge design preventive strategies. In recent years it has become clear that monogenetic eruptions
can be quite diverse in style and duration. For this reason, we will visit different examples of monogenetic volcanoes
(maars, scoria cones, shields, domes) to cover the entire spectrum of monogenetic volcanism and discuss
the possible causes of its eruptive variability. This guidebook is designed as a companion for a pre-meeting field
trip but might also be a handy tool for those wishing to visit the area with condensed and updated information at
hand. The guide contains excursions to the maars of the Zacapu basin (1 day/ 1 night), scoria cones, domes, and
shields in the Cherán-Paracho region (1 day/ 1 night) and historic Paricutin volcano and immediate surroundings
(2 days/ 2 nights), with overnight stays at Zacapu and Uruapan. The trip starts at Morelia and ends at Querétaro.
Cite this work
Researchers should cite this work as follows:
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Claus Siebe; Marie-Noëlle Guilbaud; Sergio Salinas; Pooja Kshirsagar; Magdalena Oryaëlle Chevrel; Juan Ramón de la Fuente; Athziri Hernández Jiménez; Lourdes Godínez (2014), "Monogenetic volcanism of the Michoacán-Guanajuato Volcanic Field: Maar craters of the Zacapu basin and domes, shields, and scoria cones of the Tarascan highlands (Paracho-Paricutin region) Pre-meeting field guide for the 5th International Maar Confer," https://theghub.org/resources/3712.