Arsenic and Antimony in Hydrothermal Plumes from the Eastern Manus Basin, Papua New Guinea

Table 1

Concentrations of Mn, As, Sb, and Cl of the hydrothermal plume water columns in eastern Manus basin.

18B (3.6827°S, 151.8636°W)					18G (3.7991°S, 152.1200°W)					18K (3.7884°S, 152.1066°W)
Depth (m)	Mn (nM)	As (nM)	Sb (nM)	Cl (mM)	Depth (m)	Mn (nM)	As (nM)	Sb (nM)	Cl (mM)	Depth (m)	Mn (nM)	As (nM)	Sb (nM)	Cl (mM)
1700	68.0	25.6	3.72	553	1551	35.6	20.9	2.85	541	1570	54.3	21.6	3.38	544
1670	72.1	26.4	3.83	553	1520	35.0	20.8	2.89	541	1530	68.9	22.3	3.64	542
1641	79.3	26.8	4.34	559	1492	36.3	21.0	3.06	540	1500	110.8	26.9	4.29	535
1610	58.0	24.7	3.76	554	1466	26.3	20.0	2.79	542	1470	106.6	25.2	4.04	542
1581	47.8	23.0	3.31	549	1432	17.6	19.4	2.37	545	1440	67.6	22.1	3.31	542
1551	19.6	21.0	2.76	547	1402	17.0	19.0	2.47	547	1410	16.2	19.1	2.62	544
1521	26.0	20.5	2.57	547	1370	9.80	19.0	2.39	547	1381	14.8	19.2	2.40	545
1490	14.4	20.0	2.67	544	1341	10.4	19.1	2.33	547	1351	15.7	20.2	2.54	546
1460	14.9	19.4	2.57	544	1307	9.30	19.2	2.38	546	1321	15.2	19.0	2.56	544
1431	10.7	18.6	2.48	543	1281	15.4	19.6	2.54	546	1291	26.9	19.3	2.58	546
1405	13.0	19.1	2.88	546	1251	12.7	19.7	2.51	546	1260	24.9	18.4	2.42	548
Reference materials		Mn (nM)		As (nM)		Sb (nM)
		Measure	Standard	Measure	Standard	Measure	Standard
NASS-5		16.6	16.7 ± 1.0	15.8	16.9 ± 1.6
SLRS-4		61.2	61.3 ± 3.3	9.5	9.1 ± 0.8	2.05	1.89 ± 0.33

Note. The water sample is not filtered before acidification, so the As values in this table are the total dissolved concentration.