leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 13 129 A 3 78.00 79.60 SILT 'diffuse scattering' measure 67.9 13 129 A 3 78.00 79.60 SILT 'amorphous material' measure 49.9 13 129 A 3 78.00 79.60 SILT QUARTZ 43.9 13 129 A 3 78.00 79.60 SILT PLAGIOCLASE 18.4 13 129 A 3 78.00 79.60 SILT MICA 27.6 13 129 A 3 78.00 79.60 SILT CHLORITE 7.4 13 129 A 3 78.00 79.60 SILT PYRITE 2.7