leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 29 281 A 3 36.00 38.70 BULK 'diffuse scattering' measure 43.6 29 281 A 3 36.00 38.70 BULK 'amorphous material' measure -11. 29 281 A 3 36.00 38.70 BULK CALCITE 99.7