Table T1.

Table T1. Instrumental and sample preparation precision figures for three runs of Sample 171B-1049C-8X-5, 106-108 cm.

Quartz
(wt%) Low-magnesium calcite
(wt%)

Mean (N = 3)
4.222
95.778

Standard deviation*
0.277
0.277

Standard error
0.160
0.160

95% confidence
0.687
0.687

99% confidence
1.565
1.565

	Quartz (wt%)	Low-magnesium calcite (wt%)
Mean (N = 3)	4.222	95.778
Standard deviation*	0.277	0.277
Standard error	0.160	0.160
95% confidence	0.687	0.687
99% confidence	1.565	1.565

Note: * = in standard deviation units; all other values are reported in weight percent.