leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 19 184 B 4 781.00 783.90 BULK 'diffuse scattering' measure 82.6 19 184 B 4 781.00 783.90 BULK 'amorphous material' measure 72.9 19 184 B 4 781.00 783.90 BULK QUARTZ 7.8 19 184 B 4 781.00 783.90 BULK CRISTOBALITE 59.7 19 184 B 4 781.00 783.90 BULK PLAGIOCLASE 10.5 19 184 B 4 781.00 783.90 BULK MICA 3.1 19 184 B 4 781.00 783.90 BULK CHLORITE 1.5 19 184 B 4 781.00 783.90 BULK MONTMORILLONITE 4.5 19 184 B 4 781.00 783.90 BULK TRIDYMITE 3.9 19 184 B 7 874.00 877.00 BULK 'diffuse scattering' measure 76.5 19 184 B 7 874.00 877.00 BULK 'amorphous material' measure 63.3 19 184 B 7 874.00 877.00 BULK QUARTZ 37.0 19 184 B 7 874.00 877.00 BULK PLAGIOCLASE 25.2 19 184 B 7 874.00 877.00 BULK MICA 4.2 19 184 B 7 874.00 877.00 BULK CHLORITE 1.6 19 184 B 7 874.00 877.00 BULK MONTMORILLONITE 24.8 19 184 B 10 903.00 904.60 BULK 'diffuse scattering' measure 80.6 19 184 B 10 903.00 904.60 BULK 'amorphous material' measure 69.7 19 184 B 10 903.00 904.60 BULK QUARTZ 4.9 19 184 B 10 903.00 904.60 BULK PLAGIOCLASE 16.1 19 184 B 10 903.00 904.60 BULK MONTMORILLONITE 66.6 19 184 B 10 903.00 904.60 BULK CLINOPTILOLITE 10.7