Fluids play a critical role in subduction zones and arc magmatism. At shallow levels in
subduction zones (< 40 kilometers depth), expulsion of large volumes of pore waters and …

The alteration of upper oceanic crust entails growth of hydrous minerals and loss of
macroporosity, with associated large‐scale fluxes of H2O, CO2, Cl−, and K2O between …

A map of the ocean basins (Fig. 5.1) shows that their most conspicuous topographic feature
is the system of mid-oceanic ridges, the crests of which rise on average 1000-3000 m above …

Pyroclastic Rocks is the first modern comprehensive treatment of what they are and how
they were formed. The subject is discussed against a background of plate tectonics theory …

It is suggested that the upper mantle contains elongated strips of subducted oceanic
lithosphere. These strips are stretched and thinned by the normal and shear strains in the …

Convective circulation of seawater through oceanic crust at mid-ocean ridges (MOR) and on
ridge flanks has wide-ranging effects on heat transport, the chemical and isotopic …

Dehydration experiments on natural amphibolite have been carried out under upper mantle
P/T conditions, in order to examine transportation of trace elements during dehydration …

Recycled ancient oceanic crust with variable amounts of aging, or inclusion of sediments of
differing types and origins has often been invoked as a source for present‐day ocean island …

A significant discrepancy exists between the heat flow measured at the seafloor and the
higher values predicted by thermal models of the cooling lithosphere. This discrepancy is …

Many geological and geophysical investigations, particularly the Deep Sea Drilling Project,
have shown that convergent plate margins are highly diverse features. For example, at some …