1,720,976 research outputs found
Physical and mechanical properties of the Macigno sandstones from Pian di Lanzola and Matraia quarries (Northern Apennines, Italy)
No full textGEOITALIA 2007 - 6° Forum Italiano di Scienze della Terra (Rimini, 12-14 Settembre 2007
The andesitic ignimbrites from the Lower Permian volcanic sequence in the Val di Cave and Val di Fregio area (Trento, N Italy)
No full textThe Lower Permian volcanic sequence from the Val di Cave and Val di Fregio belongs to the southern sector of the Atesina platform. Rock types include andesites and dacites and rhyodacitic ignimbrites. The andesitic ignimbrites show widespread mineralogical and geochemical modifications due to syngenetic and post-eruptive interaction between rocks and low-temperature fluids. Andesitic magmas may have evolved towards dacitic terms through fractional crystallization of an assemblage dominated by plagioclase as it is supported by the mass-balance calculations. In contrast, the calculations rule out that the dacities could be the result of mixing between andesitic and silica-rich (rhyodacitic) magmas. -from Author
- Petrology of Melilite-Bearing Rocks from the Montefiascone Volcanic Complex (Roman Magmatic Province, Italy): New Insights into the Ultrapotassic Volcanism.
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L'arenaria delle statue stele di Groppoli
No full textAlmanacco Pontremolese 2008 dedicato alle statue-stele della Lunigiana.Contributi di Donatella Alessi, Enrico Atzeni, Marco Buticchi, Gianfranco Di Battistini, Marco Franzini, Nicola Gallo, Marco Lezzerini, Tiziano Mannoni, Emanuela Paribeni, Marzia Ratti. Tipografia Artigianelli, Pontremoli
Le statue stele di Groppoli (MS). Caratterizzazione petrografica, geochimica e fisica
No full text.Abstract not availabl
Andesites of the late-hercynian volcanic sequence in Trentino Alto Adige (Northen Italy).
No full textThe andesitic ignimbrites from the Lower Permian volcanic sequence in the Val di Cavè and Val di Fregio area (Trento, N Italy)
No full textCaratteri geopetrografici e vulcanologici del settore sud-orientale vulsino (Montefiascone-Commenda, Viterbo)
No full textMetamorphic assemblages of two high pressure-low temperature ophiolitic units of Central-Western Liguria: mineralogical and chemical features and tectonic significance.
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