MAW Marks, G Markl - Earth-Science Reviews, 2017 - Elsevier
Peralkaline igneous rocks are defined by a molar (Na+ K)/Al ratio> 1 and are subdivided into miaskitic and agpaitic varieties depending on their mineralogy. In the more common …
F Ridolfi, A Renzulli - Contributions to Mineralogy and Petrology, 2012 - Springer
The following article presents constraints of the stability of Mg-rich (Mg/(Mg+ Fe 2+)> 0.5) calcic amphibole in both calc-alkaline and alkaline magmas, testing of previous …
Microgranular enclaves are common within intermediate to felsic granitic rocks that have I- and S-type affinity however they are rare within alkaline anorogenic granitoids of A-type …
F Ridolfi, M Puerini, A Renzulli, M Menna… - Journal of Volcanology …, 2008 - Elsevier
After a 26 years long quiescence El Reventador, an active volcano of the rear-arc zone of Ecuador, entered a new eruptive cycle which lasted from 3 November to mid December …
L Melluso, R De'Gennaro, L Fedele, L Franciosi… - Geological …, 2012 - cambridge.org
The lava domes in the northwestern (Cuma), northern (Punta Marmolite) and central (Accademia) parts of the Phlegrean Fields are the subject of this study. The Cuma and Punta …
In the Main Ethiopian Rift (MER) area, rural populations often use water that exceeds the World Health Organization thresholds for fluoride (F–) and arsenic (As), two elements that …
The oceanic-island magmatic systems of the Atlantic Ocean exhibit significant diversity in their respective sizes, ages, and the compositional ranges of their eruptive products …
Bulk-rock and mineralogical characterization of massive samples (lava flows, lava domes, scoria, spatter), chosen to be representative of different activity periods and of the whole …