Table T13. Water chemistry data from downhole water sampler, temperature, and pressure probe sampling of borehole fluid, Hole 1189B surface seawater, and IAPSO standard.
 
Hole:
1189B
Seawater
27 Dec 2001
22 Dec 2001
Water depth (mbsf):
130
Surface
Temperature (°C):
55
30
pH:
7.0
8.4
Alkalinity (mmol/L):
2.04
2.18
Salinity ():
35
34


IAPSO
Na+ (mmol/L) 479.3 480
K+ (mmol/L) 16.3 10.4
Mg2+ (mmol/L) 48.1 54
Ca2+ (mmol/L) 18.6 10.5
Cl- (mmol/L) 563 559
SO42- (mmol/L) 33.8 28.9
B3+ (µmol/L) 531 450
Mn+ (µmol/L) 236
Fe tot (µmol/L) 72
Sr2+ (µmol/L) 123 87
Ba2+ (µmol/L) 7
Li+ (µmol/L) 131 27

Notes: Fe tot = total iron. Na, K, Mg, Ca, Cl, and SO4 were measured by ion chromatography. B, Mn, Fe, Sr, Ba, and Li were measured by inductively coupled plasma-atomic emission spectroscopy. IAPSO = seawater standard. — = not analyzed.