We present the results of an analytical model of porous flow of viscous melt into a steadily dilating "channel" (defined as a cluster of smaller veins) in downwelling subarc mantle. The model predicts the pressure drop in the mantle wedge matrix surrounding the channel needed to drive melt flow as a function of position and time.
- short-lived isotopes
- melt flow
- melt segregation
Petford, N., Koenders, M. A., & Turner, S. (2008). Channelized melt flow in downwelling mantle: Implications for 226Ra-210Pb disequilibria in arc magmas. Journal of Geophysical Research. Solid Earth, 113(B11202). https://doi.org/10.1029/2007JB005563