leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 29 284 A 2 27.50 29.70 BULK 'diffuse scattering' measure 47.5 29 284 A 2 27.50 29.70 BULK 'amorphous material' measure -5.3 29 284 A 2 27.50 29.70 BULK CALCITE 91.0 29 284 A 2 27.50 29.70 BULK QUARTZ 1.8 29 284 A 2 27.50 29.70 BULK PLAGIOCLASE 1.1