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Ti-rich Amphibole of Igneous Origin in MOR-Type Gabbroic Rocks (Northern Apennine Ophiolites, Italy): An Ion Microprobe Study
1998
Mineralogical magazine
Two major hypotheses have been formulated for the origin of Ti-rich amphibole in MOR-type gabbroic rocks (e.g. Otten, 1984). In the first, amphibole derives from an igneous trapped liquid. This hypothesis implies that the parental magma had a relatively high volatile content, thus contrasting with the nearly anhydrous nature of MORB. The second hypothesis assumes a metamorphic origin, i.e. amphibole was originated by solid state reactions of igneous minerals with volatile-rich seawater-derived
doi:10.1180/minmag.1998.62a.3.140
fatcat:i6c2pxudtvbtpixw56bzchn3zm