Table T1. Comparison of analytical results for interlaboratory samples prepared from Leg 193 core material.

Table T1. Comparison of analytical results for interlaboratory samples prepared from Leg 193 core material.


Sample	Laboratory	Method	Major element oxide (wt%)												Trace element (ppm)
Sample	Laboratory	Method	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	MgO	CaO	MnO	Na₂O	K₂O	P₂O₅	LOI	Total	S total*	Li	Be	Cl*	Ge	Se	Br	In
1188B	CSIRO	ICP-AES	64.86	0.55	13.14	4.15	3.93	1.25	0.06	2.22	0.39	0.15	4.76	95.46	24,960	<5	<2
		XRF	64.85	0.55	13.32	4.4	3.92	1.28	0.06	2.35	0.37	0.14	4.76	96	20,190			520
		ICP-MS																	1.9			130
		NAA				4.7				2.4	<0.24									<5	2.7
	TU Freiberg	XRF	67.11	0.6	13.66	4.99	3.99	1.31	0.06	2.17	0.4	0.14	3.7	98.13	25,400
	TU Freiberg	ICP-MS		0.63		5.7			0.05
	TAMU	ICP-AES	65.7	0.59	13.3	4.6	3.91	1.33	0.06	2.29	0.38	0.16	3.9	96.22
	TAMU	ICP-MS
1191A	CSIRO	ICP-AES	66.76	0.59	13.81	4.29	0.83	2.89	0.12	4.83	1.73	0.14	1.46	97.45	274	13	<2
		XRF	67.57	0.6	13.93	4.57	0.87	2.92	0.13	5.09	1.71	0.13	1.46	98.98	120			5,870
		ICP-MS																	2.5			70
		NAA								5.2	1.3									<5	13.5
	TU Freiberg	XRF	68.22	0.63	14.1	4.72	0.83	2.96	0.13	4.83	1.74	0.13	1.44	99.73	400
	TU Freiberg	ICP-MS		0.7		5.9			0.11
	TAMU	ICP-AES	68.08	0.63	13.91	4.73	0.89	3.02	0.12	4.88	1.76	0.13	1.5	99.65
	TAMU	ICP-MS

Sample

Laboratory

Method

Trace element
(ppm)

Te

Hg

Cs

Ba

Cu

Pb

Zn

Ag

As

Bi

Cd

Cr

Co

Ga

Hf

Mo

Nb

Ni

Rb

1188B
CSIRO
ICP-AES

139 111 <50 143 <5 <25
<5 15 6

<5
<10

XRF

107 115 37 136

<10 <10 17

<4 <10 <5

ICP-MS 0.33
0.31

21.2

14.1 0.026 0.28 15 4.9 16.1
2.1
6.2 3.8

NAA <1 <5
135

139 <5 16.2
<20 17.1 5.3
3.5 <5

<20

TU Freiberg
XRF

134

150

7

ICP-MS

0.3 231 108 26 393 <0.5 17.7 <5 <0.5 29.3 4.4 16.4 2.3 0.89 1.4 9 4

TAMU
ICP-AES

140

ICP-MS

121 21 132

4.5 14.7 3.5
1.5 6.2 3.3

1191A
CSIRO
ICP-AES

348 18 <50 81 <5 <25
<5 13 5

<5
<10

XRF

285 18 15 74

<10 <10 17

<4 <10 20

ICP-MS <0.17
0.69

5.1

13.9 0.043 0.28 13.8 4.9 16.9
2.1
3.2 27.2

NAA <1 <5 0.7 352

<100 <5 3.2
<20 12.4 4.9
3.6 <5

29

TU Freiberg
XRF

376

83

28

ICP-MS

411 33 6 300 <0.5 4.5 <5 <0.5 13.5 5.1 18.8 3.7 1.27 1.62 6 31

TAMU
ICP-AES

353

ICP-MS

14 5.6 79

5.2 16.7 3.7
1.7 2.7 28.5

Sample	Laboratory	Method	Trace element (ppm)
Te	Hg	Cs	Ba	Cu	Pb	Zn	Ag	As	Bi	Cd	Cr	Co	Ga	Hf	Mo	Nb	Ni	Rb
1188B	CSIRO	ICP-AES				139	111	<50	143	<5	<25		<5	15	6			<5		<10
XRF				107	115	37	136					<10	<10	17			<4	<10	<5
ICP-MS	0.33		0.31			21.2			14.1	0.026	0.28	15	4.9	16.1		2.1		6.2	3.8
NAA	<1	<5		135			139	<5	16.2		<20	17.1	5.3		3.5	<5			<20
TU Freiberg	XRF				134			150												7
ICP-MS			0.3	231	108	26	393	<0.5	17.7	<5	<0.5	29.3	4.4	16.4	2.3	0.89	1.4	9	4
TAMU	ICP-AES				140
ICP-MS					121	21	132						4.5	14.7	3.5		1.5	6.2	3.3
1191A	CSIRO	ICP-AES				348	18	<50	81	<5	<25		<5	13	5			<5		<10
XRF				285	18	15	74					<10	<10	17			<4	<10	20
ICP-MS	<0.17		0.69			5.1			13.9	0.043	0.28	13.8	4.9	16.9		2.1		3.2	27.2
NAA	<1	<5	0.7	352			<100	<5	3.2		<20	12.4	4.9		3.6	<5			29
TU Freiberg	XRF				376			83												28
ICP-MS				411	33	6	300	<0.5	4.5	<5	<0.5	13.5	5.1	18.8	3.7	1.27	1.62	6	31
TAMU	ICP-AES				353
ICP-MS					14	5.6	79						5.2	16.7	3.7		1.7	2.7	28.5

Sample

Laboratory

Method

Trace element
(ppm)

Sb

Sc

Sr

Ta

Th

Tl

U

V

Y

Zr

La

Ce

Pr

Nd

Sm

Eu

Gd

Tb

Dy

Ho

1188B
CSIRO
ICP-AES <50 6 142

28 13 57 11

XRF

160

23 31 111 <10 25

ICP-MS 0.77 6.3

0.65 0.14 0.43 31.4 12.9
9.6 22.7 3.3 13.8 3.3 0.93 2.9 0.47 2.4 0.51

NAA 0.61 12
<1 1.19

<500 9.9 22.4

3.9 1.16

TU Freiberg
XRF

153

33 102

ICP-MS 0.6 9.4 160
1.22 0.09 0.55 26 21 67

TAMU
ICP-AES
11.5

ICP-MS

161 0.1

27.5 30.8 102 10.3 22.7 3.2 13.9 4.4 1.13 4.4 0.66 2.89 1.04

1191A
CSIRO
ICP-AES
10 246

22 31 130 13

XRF

264

29 33 114 <10 31

ICP-MS 0.15 10.9

1.18 0.21 0.66 25.4 32.3
11.1 24.8 3.6 16.5 4.3 1.27 2.9 0.47 2.4 0.51

NAA <0.2 11.6
<1 1.14

<500 10.8 25.3

4.3 1.25

TU Freiberg
XRF

255

35 110

ICP-MS <0.5 16.1 308
1.74 0.21 0.62 21 38 124 11.1 22.9 3.4 14.8 4.1 1.13 4.55 0.73 4.96 1.08

TAMU
ICP-AES
11.5

ICP-MS

304 0.1

24 37.4 119 11.3 24.8 3.5 17.4 4.4 1.32 4.67 0.89 5.36 1.24

Sample	Laboratory	Method	Trace element (ppm)
Sb	Sc	Sr	Ta	Th	Tl	U	V	Y	Zr	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho
1188B	CSIRO	ICP-AES	<50	6	142					28	13	57	11
XRF			160					23	31	111	<10	25
ICP-MS	0.77	6.3			0.65	0.14	0.43	31.4	12.9		9.6	22.7	3.3	13.8	3.3	0.93	2.9	0.47	2.4	0.51
NAA	0.61	12		<1	1.19					<500	9.9	22.4			3.9	1.16
TU Freiberg	XRF			153						33	102
ICP-MS	0.6	9.4	160		1.22	0.09	0.55	26	21	67
TAMU	ICP-AES		11.5
ICP-MS			161	0.1				27.5	30.8	102	10.3	22.7	3.2	13.9	4.4	1.13	4.4	0.66	2.89	1.04
1191A	CSIRO	ICP-AES		10	246					22	31	130	13
XRF			264					29	33	114	<10	31
ICP-MS	0.15	10.9			1.18	0.21	0.66	25.4	32.3		11.1	24.8	3.6	16.5	4.3	1.27	2.9	0.47	2.4	0.51
NAA	<0.2	11.6		<1	1.14					<500	10.8	25.3			4.3	1.25
TU Freiberg	XRF			255						35	110
ICP-MS	<0.5	16.1	308		1.74	0.21	0.62	21	38	124	11.1	22.9	3.4	14.8	4.1	1.13	4.55	0.73	4.96	1.08
TAMU	ICP-AES		11.5
ICP-MS			304	0.1				24	37.4	119	11.3	24.8	3.5	17.4	4.4	1.32	4.67	0.89	5.36	1.24

Sample

Laboratory

Method

Trace element
(ppm)

Trace element
(ppb)

Er

Tm

Yb

Lu

Ir

Au

1188B
CSIRO
ICP-AES

<2

XRF

ICP-MS 1.3 0.19 1.2 0.19

NAA

3.3 0.47 <20 5.6

TU Freiberg
XRF

ICP-MS

TAMU
ICP-AES

ICP-MS 2.14 0.28 2.44 0.38
5.8

1191A
CSIRO
ICP-AES

XRF

4

ICP-MS 3.5 0.53 3.6 0.58

NAA

3.6 0.52 <20 <5

TU Freiberg
XRF

ICP-MS 3.3 0.5 3.5 0.54

TAMU
ICP-AES

ICP-MS 3.66 0.53 3.7 0.64

Notes: Sample 1188B is pervasively hydrothermally altered dacite. Sample 1191A is fresh, aphyric rhyodacite. CSIRO = Commonwealth Scientific and Industrial Research Organisation, TU Freiberg = Technische Universität Berkakademie Freiberg, TAMU = Acme Analytical Laboratories. ICP-AES = inductively coupled plasma–atomic emission spectrometer, XRF = X-ray fluorescence, ICP-MS = inductively coupled plasma–magnetic spectrometer, NAA = neutron activation analysis. * = possible loss in fusion. † = uncertain value.