leg	site	hole	core	section	top interval depth (cm)	bottom interval depth (cm)	top of layer (m)	bottom of layer(m)	thickness of layer(m)	lithology	source	heterogeneity	hardness	comp1	comp2	comp3	comp4	comp5	processing history flag	lithology name from screen program	lithology name from shipboard observer	avg. calcareous material	avg. siliceous material	avg. detrital material	age mnemonic at top of layer	age mnemonic at bottom of layer	age code(interpreted)	avg density from g.r.a.p.e.	avg porosity from g.r.a.p.e.	number of g.r.a.p.e. measurements
47	398	C	1	CC	0.0	0.0	0.10	0.10	0.00	CALCAREOUS	PELAGIC	MONOGENIC	FIRM	NANNOFOSSIL	CLAY MINERAL				Successful	CLAY MINERAL RICH NANNOFOSSIL CHALK                         	MARLY NANNO OOZE                                            	69	0	31	PLEISTOCENE		NO AGE GIVEN