Initial Reports Volume 185
Chapter 3, Table T23. K2O analyses of core samples.

Note: Data obtained with shipboard atomic absorption (AA) as in "Analysis of Potassium in Basalts by Atomic Absorption Spectrometry," p. 24, and with X-ray fluorescence (XRF) as in the "X-Ray Fluorescence Analysis," p. 22, both in the "Explanatory Notes" chapter.

		AA 	XRF	
Core, section, 	Depth 	K2O 	K2O 	
interval (cm)	(mbsf)	(wt%)	(wt%)	Sample descriptions

185-801C-				
14R-1, 75.0	604.75	0.074	0.074	Least-altered basalt flow
14R-2, 93.0	606.24	0.490		Fine-grained, black matte, pillow basalt
14R-2, 120.0	606.51	2.058		Deep green granular interpillow sediment
14R-3, 6.0	606.84	2.883		Emerald green chert, below first interpillow
14R-3, 58.0	607.36	0.340		Aphyric pillow, second unit, fresh
		0.410		
14R-3, 71.0	607.49	2.513		Small interpillow, dark green
14R-3, 96.0	607.74	2.823		Interpillow, deep green, mostly precipitated material
		2.334		
14R-3, 120.0	607.98	1.307	1.200	Interpillow, granular sediment
14R-4, 65.0	608.81	0.167	0.145	Minimally altered basalt
15R-1, 30.0	614.00	2.209		Interpillow, celadonite and carbonate, largely precipitated material
15R-1, 93.0	614.63	0.619		Dark green halo around carbonate vein in green pillow breccia
15R-1, 94.0	614.64	0.000		Lighter core of pale green halo, adjacent to Sample 185-801C-15R-1, 93 cm
16R-3, 11.0	626.13	0.101		Fe-Si hydrothermal deposit
16R-3, 50.0	626.52	0.878	0.760	Interpillow sediment
16R-3, 64.0	626.66	0.333		Base of interpillow, deep green
16R-3, 65.0	626.67	1.638		Top of pale green altered basalt
16R-3, 78.0	626.80	0.355		Altered glass, dark green
		0.290		
16R-3, 86.0	626.88	0.292		Darker green altered basalt
16R-3, 108.0	627.10	0.500		Very dark gray basalt
		0.525		
		0.487		
16R-3, 118.0	627.20	0.300		Dark gray basalt
		0.252		
16R-3, 134.0	627.36	0.123		Gray, least-altered basalt