Table 1

Concentrations of acid-volatile sulfide (AVS), Fe and Zn in the unfiltered and 0.2-μm filtered samples collected at hydrothermal vents of the Eastern Lau Spreading Center (June 2005).





AVS, μM
 Fe, μM
 Zn, μM





Station
 Sample ID
 Sample Site Description
 Temp. °C
 pH
 unfiltered
 filtered
 unfiltered
 filtered
 unfiltered
 filtered
Kilo Moana
 KM-154-2
 Diffuse flow near mussel bed
 12.3
 7.0
 52.3
 16
 16
 15
 < 0.3
 < 0.3

KM-155-2
 Black smoker
 178
 3.7
 2710
 1430
 1430
 1400
 90
 < 0.3

KM-155-3
 Black smoker
 252
 5.8
 148
 202
 202
 280
 13
 < 0.3

KM-156-1
 Black smoker
 258
 4.6
 2230
 1570
 1570
 1560
 22
 < 0.3

KM-156-3
 Black smoker
 314
 3.6
 2250
 1580
 1580
 1480
 85
 < 0.3

KM-164-2
 Black smoker
 301
 5.2
 1190
 852
 852
 780
 12
 < 0.3
Tow Cam
 TC-157-1
 Black smoker
 325
 4.1
 3990
 234
 234
 230
 33
 < 0.3

TC-157-2
 Black smoker
 310
 4.3
 N/A
 230
 230
 230
 43
 < 0.3

TC-159-1
 Diffuse Flow
 35
 6.6
 89.3
 5.6
 5.6
 2.5
 < 0.3
 < 0.3

TC-159-2
 Diffuse Flow
 35
 6.5
 172
 5.9
 5.9
 5.6
 < 0.3
 < 0.3
ABE
 ABE-160-1
 Clear fluid from a broken spire
 153
 5.6
 359
 27.6
 27.6
 33
 < 0.3
 < 0.3

ABE-160-2
 Black smoker
 295
 4.2
 1370
 235
 235
 240
 39
 < 0.3

ABE-160-3
 Black smoker
 310
 4.2
 1540
 158
 158
 180
 42
 < 0.3

ABE-160-4
 Black smoker
 305
 4.4
 1570
 149
 149
 150
 36
 < 0.3
Tu'i Malila
 TM-161-1
 Focused diffuse flow, clear
 45
 6.1
 161
 1.1
 1.1
 0.80
 < 0.3
 < 0.3

TM-161-2
 Clear vent fluid
 295
 4.2
 760
 124
 124
 130
 42
 1.5

TM-161-3
 Focused diffuse flow, clear
 45
 6.2
 148
 2.3
 2.3
 1.9
 < 0.3
 < 0.3

TM-161-4
 Clear vent fluid
 267
 4.5
 804
 165
 165
 163
 20
 0.5

Hsu-Kim et al. Geochemical Transactions 2008 9:6   doi:10.1186/1467-4866-9-6