Magmatic oxides and sulfides in gabbroic rocks from ODP Hole 118-735B, supplement to: Natland, James H; Meyer, Peter S; Dick, Henry J B; Bloomer, Sherman H (1991): Magmatic oxides and sulfides in gabbroic rocks from Hole 735B and the later development of the liquid line of descent. In: Von Herzen, RP; Robinson, PT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 118, 75-111

James H Natland, Peter S Meyer, Henry J B Dick & Sherman H Bloomer
Extended high-iron differentiation occurred while the gabbroic rocks of Hole 735B were undergoing intense ductile and brittle deformation beneath a spreading ridge segment near Atlantis II Fracture Zone, Southwest Indian Ridge. Within the partially molten mass, the deformation formed fissures, cracks, and porphyroclastic to gneissic shear zones with fine-scale porosity structure into which dense, iron-rich liquids or crystal mushes could migrate. The iron-rich liquids differentiated from melts squeezed during the deformation from interstitial spaces in...
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