Comparisson reports are under license of:
“One particular variety of trachyte—which in some places resembles the piperine lava found near Naples—is represented by the heavy grey-black basaltic rocks found on the islet of El Bauzá and on various parts of La Ferrera.
In these areas, we find fragments belonging to a class of trachyte that is particularly dark and rich in amphiboles—as is not often seen—included in a light-grey Ponzá-style trachyte.”
Urios, G., Nachtwey, J., Translation, Columbretes, 1895, Castellón City Council, 1990.
We could not gather data on this topic.
For those interested in this topic, we recommend the following book chapter:
AlonsoMatilla,L.A.,Geologiaestructuraldelarchipiélago
delasColumbretes,
enAlonsoMatilla,L.A.,Carretero,J.L.,GarcíaCarrascosa,A.M.,
IslasColumbretes. Contribuciónelestudio
desumedionatural,GeneralitatValenciana, 1991 (1987)
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