Island Arcs and Convection

Arc Cross-section Determination of Convection Stabilized Arcs

Convection stabilized high current arcs are found in extinction chambers of AC and DC circuit breakers. Such arcs have a radially flat temperature profile with a sharp drop towards the surrounding cold gas. This is because a large fraction of the emitted radiation is reabsorbed at the edge of the arc column. Therefore, it is reasonable to characterize an arc of this type by its cross-section A....

Electromagnetic View of the Seismogenic Zones Beneath Island Arcs

THE SOURCES OF ISLAND ARCS AS INDICATED BY Nd AND Sr ISOTOPIC STUDIES

Abstmct: Island arc lavas from New Britain and the Marianas have 143 Nd/144 Nd similar to other oceanic basalts and distinctly different from continental flood basalts and thus appear to be derived from a high Sm/Nd, light-REE-depleted reservoir. Consideration of both Nd and Sr isotopes suggests seawater involvement in the generation of some island arc lavas and thus indicates that they may be ...

TIME-DEPENDENT STRAIN ACCUMULATION AND RELEASE AT ISLAND ARCS: IMPLICATIONS FOR THE 1946 NANKAIDO EARTHQUAKE by

Underthrusting and the elastic-rebound theory are consistent with the gross static deformations after earthquakes for island-arc regions such as Japan, Alaska, and Chile. Yet anomalous, time-dependent post-earthquake adjustments suggest additional processes. Here the asthenosphere or mantle becomes the element that both determines the post-seismic deformation and controls the accumulation of st...

t-Pancyclic Arcs in Tournaments

Let $T$ be a non-trivial tournament. An arc is emph{$t$-pancyclic} in $T$, if it is contained in a cycle of length $ell$ for every $tleq ell leq |V(T)|$. Let $p^t(T)$ denote the number of $t$-pancyclic arcs in $T$ and $h^t(T)$ the maximum number of $t$-pancyclic arcs contained in the same Hamiltonian cycle of $T$. Moon ({em J. Combin. Inform. System Sci.}, {bf 19} (1994), 207-214) showed that $...