leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 19 187 3 267.00 268.00 BULK 'diffuse scattering' measure 83.6 19 187 3 267.00 268.00 BULK 'amorphous material' measure 74.4 19 187 3 267.00 268.00 BULK QUARTZ 22.6 19 187 3 267.00 268.00 BULK PLAGIOCLASE 27.9 19 187 3 267.00 268.00 BULK MICA 25.0 19 187 3 267.00 268.00 BULK CHLORITE 9.7 19 187 4 361.00 363.30 BULK 'diffuse scattering' measure 85.1 19 187 4 361.00 363.30 BULK 'amorphous material' measure 76.8 19 187 4 361.00 363.30 BULK QUARTZ 23.1 19 187 4 361.00 363.30 BULK PLAGIOCLASE 30.5 19 187 4 361.00 363.30 BULK MICA 24.7 19 187 4 361.00 363.30 BULK CHLORITE 9.4 19 187 4 361.00 363.30 BULK MONTMORILLONITE 8.8 19 187 4 361.00 363.30 BULK CLINOPTILOLITE 1.4