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Volcano field trip "Basement complex of the oceanic volcanic island of Fuerteventura".
| Leaders
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Ramón Casillas
Email: rcasilla@ull.es
Carlos Fernández
Agustina Ahijado
Margarita Gutiérrez
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| Dates |
May
23 (arrival), 24, 25 and 26 (departure) (arrival of participants
to Fuerteventura island, individual transfer by taxi to Caleta de
Fústes Hotel)
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Number
of
participants |
10 minimum – 20 maximum |
| Cost |
€ 300. Includes full pension, box lunches, and transport by car. |
| Program |
The
Island of Fuerteventura represents an exceptional scene to understand
the formation of an oceanic Island. Rocky materials of the oceanic
crust, submarine volcanic edifice, and the first subaerial edifices as
well as plutonic and hypo-abyssal complexes related to the volcanic
complex are well represented and are accessible. It is interesting to
indicate the presence of carbonatites forming part of these
plutonic-hypo-abyssal complexes, since in oceanic environments they
only appear in Fuerteventura and the Archipelago of Cape Verde. On the
other hand, these rocks have undergone a complex deformation history
that has originated the rise of the oceanic crust and the submarine
volcanic rocks, the formation of ductile shears or ductile/brittle that
affects part of plutonic and hypo-abyssal rocks, the formation of
faults, clusters of dikes, kilometric scaled folds and the swinging of
the basaltic series. These deformations have been produced throughout
Oligocene-Miocene by the action of diverse extensional stages (some of
which gave place to the crust rifting) and compressive. |
| Major topics |
| May 23 |
18:00 h. Introduction of the volcano field trip to participants. |
| May 24 |
Route
1. Stops 1 to 5. Submarine evolution and emersion of Fuerteventura
Island. The surface oceanic crust. The submarine Volcanic Group and the
Transition Volcanic Group. |
| May 25 |
Route
2. Stops 6 to 8. The ultra-alkaline plutonic complex (piroxenites,
ijolites, melteijites, sientites y carbonatites) y tectonical
deformations that affect it. |
| May 26 |
Route
3. Stops 9 and 10. The sub-aerial Volcanic Group and the first phase of
sub-aerial volcanism of the Miocene age (Series I). Deformations
affecting this group. |
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