Sentence examples for decompression melting from inspiring English sources
It separates the northern upper plate (Oman) from southern lower plate (Socotra Island) and may have generated rift-induced decompression melting and volcanism affecting the upper plate.
Linking a sea level forcing to extra decompression melting requires an assessment of the flexural response of the lithosphere as the pressure signal may be damped beneath the subaerial parts of the volcanic edifice.
The increase in decompression melting in response to a falling sea level is more straightforward to calculate than for oceanic islands, as flexural effects do not need to be considered for the fully submerged global MOR system.
Associated to significant decompression melting, final detachment fault may have triggered the formation of a proto-oceanic crust at 17.6 Ma and induced late volcanism up to ~ 10 Ma.
One theory suggests that induced decompression melting of the mantle has formed Mount Etna as melted mantle extrudes to the surface.
Decompression melting occurs when the upper mantle is partially melted into magma as it moves upwards under mid-ocean ridges.
Magmas progress from early decompression melts of unmodified fertile mantle to yield "fore-arc" basalts to younger hydrous flux melts of depleted mantle that has been strongly modified by subduction-related fluids to yield late high-Mg andesites and boninitic lavas.
We suggest that mainly adiabatic decompression and melt generation from shallow sources can explain distinct along-margin variations in the volcano-tectonic architecture and volumes of extruded magmas.
This increase has previously been attributed to enhanced mantle decompression and melt generation due to ice unloading in glaciated regions.
Polybaric melting, due to adiabatic decompression of upwelling mantle, would leave a residual mantle in which the degree of depletion decreases with depth.
The crust behind the arc becomes progressively thinner, and the decompression of the underlying mantle causes the crust to melt, initiating seafloor-spreading processes, such as melting and the production of basalt; these processes are similar to those that occur at ocean ridges.
