Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5783004 | Chemical Geology | 2017 | 18 Pages |
Abstract
Petrological and mineralogical evidence indicates that bulk F concentrations are dominated by the presence of amphibole and apatite, whereas Cl and Br are mainly hosted in fluid inclusions rather than in hydrous minerals. The variation of F/Cl and Br/Cl ratios may trace the mixing between MORB magmas and seawater-derived fluids, crystallization of apatite and amphibole, and/or extraction of magmatic fluids. Our data support the current S budget of oceanic crust, but indicate that the budgets of C and Cl may have been underestimated.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Chao Zhang, Lian-Xun Wang, Michael A.W. Marks, Lydéric France, Juergen Koepke,