The present worldwide study of 31 off-shore back-arc basins and subbasins (BABs) identifies their principal characteristics based on a broad spectrum geophysical subduction-related parameters. This synthesis is next used to identify trends in evolution the for improving our understanding subduction systems general. analysis, plate configuration, demonstrates that fate are essentially controlled...

Owing to advances in microanalytical techniques over the last 15 years, there is a growing database on the volatile contents of subduction-related magmas as recorded in melt (glass) inclusions trapped in phenocrysts in volcanic rocks. Basaltic magmas from subduction zones show a wide range of water contents, ranging from as high as 6–8 to b0.5 wt.% H2O. Variations are related in some places to ...