Water-fluxed melting of the continental crust: A review

0438916 - GFÚ 2016 RIV NL eng J - Journal Article
Weinberg, R. F. - Hasalová, Pavlína
Water-fluxed melting of the continental crust: A review.
Lithos. 212-215, January (2015), s. 158-188. ISSN 0024-4937. E-ISSN 1872-6143
Institutional support: RVO:67985530
Keywords : aqueous fluids * crustal anatexis * granites * silicate melts * water-fluxed melting
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 3.723, year: 2015

Water-fluxed melting, also known as fluid- or water-present melting, is a fundamental process in the differentiation of continents but its importance has been underestimated in the past 20 years during which research efforts focused mostly on dehydration melting reactions involving hydrate phases, in the absence of a separate aqueous phase. The presence of a free aqueous phase in anatectic terranes influences all major physical and chemical aspects of the melting process, from melt volumes, viscosity and ability to segregate from rock pores, to melt chemical and isotopic composition. A review of the literature shows that melting due to the fluxing of aqueous fluids is a widespread process that can take place in diverse tectonic environments. Active tectono-magmatic processes create conditions for the release of aqueous fluids and deformation-driven, transient high permeability channels, capable of fluxing high-temperature regions of the crust where they trigger voluminous melting.
Permanent Link: http://hdl.handle.net/11104/0242269