leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 23 219 A 5 317.00 319.30 BULK 'diffuse scattering' measure 56.0 23 219 A 5 317.00 319.30 BULK 'amorphous material' measure 31.3 23 219 A 5 317.00 319.30 BULK CALCITE 88.8 23 219 A 5 317.00 319.30 BULK PLAGIOCLASE 8.1 23 219 A 11 371.00 373.00 BULK 'diffuse scattering' measure 80.0 23 219 A 11 371.00 373.00 BULK 'amorphous material' measure 68.8 23 219 A 11 371.00 373.00 BULK CALCITE 2.8 23 219 A 11 371.00 373.00 BULK PLAGIOCLASE 33.1 23 219 A 11 371.00 373.00 BULK MONTMORILLONITE 49.4 23 219 A 13 387.00 389.10 BULK 'diffuse scattering' measure 82.7 23 219 A 13 387.00 389.10 BULK 'amorphous material' measure 72.9 23 219 A 13 387.00 389.10 BULK CALCITE 8.5 23 219 A 13 387.00 389.10 BULK PLAGIOCLASE 12.2 23 219 A 13 387.00 389.10 BULK MONTMORILLONITE 63.9 23 219 A 13 387.00 389.10 BULK PHILLIPSITE 12.8 23 219 A 13 387.00 389.10 BULK ANALCITE 1.1