Alfred G. Hochstaedter

TL;DR: The Kamchatka arc (Russia) is divided into three segments by major sub-latitudinal fault zones (crustal discontinuities) as mentioned in this paper, where the southern (SS) and central (CS) segments are associated with the subduction of old Pacific lithosphere, whereas the northern, inactive segment (NS) was formed during westward subduction in young (< 15 Ma) Komandorsky Basin oceanic crust.

TL;DR: In this paper, the authors proposed that across-arc differences in the geochemistry of Izu-Bonin arc magmas are controlled by the addition of fertile-slab fluids to depleted mantle at the volcanic front without slab melting or contemporaneous back arc spreading.

TL;DR: A bimodal volcanic suite with KAr ages of 0.05-1.40 Ma was collected from the Sumisu Rift using alvin. as mentioned in this paper showed that major element geochemistry of the basalts is most similar to that of basalts found in other, more mature back-arc basins.

TL;DR: A bimodal suite of volcanic rocks collected from the Sumisu Rift by alvin provide present day examples of the first magmatic products of arc rifting during the initiation of back-arc spreading as mentioned in this paper.

TL;DR: The Izu-Bonin arc contains an active volcanic front, an active extensional zone, and a series of 3-9 Ma southwest trending across-arc seamount chains as discussed by the authors.