88,566 research outputs found
Interactions between low-angle normal faults and plutonism in the upper crust: Insights from the island of Elba, Italy: Comment
No full textThe interplay between magmatism and tectonics is pivotal for deciphering the tectonic and geodynamic evolution of mountain belts. In the northern Apennines - northern Tyrrhenian Sea orogenic system large amounts of magma were emplaced at shallow crustal levels since the middle-late Miocene to recent (e.g. Serri et al., 1993; Rosenbaum et al., 2008). In this sector of the Apennine chain the mutual relationships between magmatism and tectonics are still a matter of debate (e.g., Rossetti et al., 1999; Acocella and Rossetti, 2002; Musumeci et al., 2005; 2008; Rosenbaum et al., 2008). Elba Island, located in the Tyrrhenian Sea about 30 km west of the inner portion of the chain, is a key area where tectonics - magmatism relationships can be studied
Machine Learning for Failure Management in Optical Networks
No full textAfter an overview on main concepts of machine learning, we discuss use cases in optical networks failure management, such as failure detection, root-cause identification and localization. Recent research trends and challenges are also highlighted
Campagna nazionale di sperimentazione di una nuova scheda catalografica PSS - Patrimonio Storico-Scolastico (Tipologia TM: Partecipazione a comitati per la definizione di standard e norme tecniche)
No full textLate Visean mylonitic granitoids in the Argentera Massif (Western Alps): age and kinematic constrains on the Ferrière-Mollières shear zone
No full textThe Argentera Massif in the western Alps is made of up two medium–high-grade metamorphic complexes of
Variscan age. They are separated by a regional-scale northwest-trending shear zone, the Ferrière–Mollières Line, which
consists of low-grade mylonitic rocks. Muscovite-bearingmylonitic leucogranites crop out as subvertical northwest-trending
intrusions, in the northern portion of the shear zone. A Rb/Sr muscovite–wr age of 327±3 Ma on foliated leucogranite gives
a lower limit for the age of mylonitic deformation for which kinematic indicators indicate a dextral sense of shear. This strike-slip
tectonics is compatible with the extensional regime that occurred during Carboniferous in the whole western Europ
Autonomia finanziaria,livelli di governo e finanziamento delle funzioni
No full textLa recente riforma del Titolo V della Costituzione ha completamente ridisegnato l'autonomia finanziaria delle Regioni e degli enti locali indicando il finanziamento delle funzioni come l'obiettivo da perseguire. Si tratta di un cambiamento epocale che apre la strada al federalismo fiscale, rispetto al quale però la normativa statale è certamente in netto ritardo e i problemi interpretativi sono destinati a gravare sulla Corte costituzional
Hydrofracturing-related sill and dyke emplacementat shallow crustal levels: The eastern Elba Dyke Complex, Italy
No full textAn example of sheet-like intrusion emplacement at very shallow crustal levels
on Elba Island, Italy, is described. The Eastern Elba Dyke Complex (EEDC) consists of
decimetre- to metre-thick sheeted aplites emplaced within intensely folded low-grade metamorphic
rocks. Field data indicate that sill and dyke emplacement was controlled by mechanical
discontinuities, represented by fractures in the host rocks, and was strongly favoured by
magma overpressure. The occurrence of angular fragments of host rocks in the dyke border
zones and the branching of sills testify to hydraulic fracturing. Analysis of the spatial distribution
and geometry of EEDC sills and dykes provides clues on fluid pressure conditions
and the stress state at the time of magma emplacement, as well as on the depth of
emplacement. The calculated stress ratio and driving pressure ratio were used to estimate a
magma overpressure of 6–54 MPa at the time of emplacement of the EEDC at a depth of
about 2 km
Il governo dei corpi e la trasformazione del diritto sanitario in Italia dalla Grande Guerra al Fascismo
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