Table T3. Overall mass transfers during hydrothermal alteration within major subdivisions of the subseafloor PACMANUS system, relative to 1 kg of precursor rock (Ti and Zr assumed immobile).
 
1188A
1188A + 1188F
1189A
1189B
1189B
Location:
Cristobalite domain
Quartz domain
 
Stockwork Zone
Lower Sequence
Depth (mbsf):
49–165
106–368
10–116
31–98
99–176
N:
17
36
13
7
12
Major elements (g/kg):
SiO2 –0 1 –111 –360 47
Al2O3 4 –1 0 12 –0
FeO (total) –2 –10 5 43 14
MnO –1.0 –1.2 –1.0 –1.1 –0.4
MgO 4 8 29 16 13
CaO –2 –10 –23 –29 –14
Na2O –25 –34 –36 –42 –22
K2O –9 2 17 32 23
P2O5 0.1 0.2 0.8 –0.6 0.4
S (total) 39 37 28 62 25
Minor elements (mg/kg):
Li –11 –9 –9 –12 –9
Be –0.1 –0.3 –0.4 –0.5 –0.2
Sc –5 –5 –1 0 –1
V 5 –1 –2 2 8
Cr 7 9 19 6 11
Co –0.6 0.1 12 16 11
Ni –0.3 3 4 –1 5
Cu 42 29 770 13 286
Zn –17 –67 17 –31 300
Ga 4 –0 3 7 1
Ge –5 –7 –5 –3 –4
As 11 3 6 10 46
Rb –13 –7 15 39 17
Sr –25 –99 –199 –246 –80
Y –6 –6 –5 –10 –2
Mo 0.6 4.3 1.5 –0.0 1.2
Ba –10 305 2,500 2,400 2,600
La –3.4 –2.8 –1.4 –2.2 –1.1
Ce –7.2 –5.8 –2.9 –4.3 –2.1
Pr –1.0 –0.9 –0.5 –0.7 –0.3
Nd –3.9 –3.3 –1.7 –2.8 –0.7
Sm –1.0 –1.1 –0.7 –1.5 –0.4
Eu –0.4 –0.4 –0.7 –0.8 –0.3
Gd –1.5 –1.7 –1.2 –2.2 –0.6
Tb –0.4 –0.4 –0.3 –0.5 –0.2
Dy –2.4 –2.9 –2.0 –3.3 –1.1
Ho –0.6 –0.7 –0.5 –0.8 –0.3
Er –1.9 –2.3 –1.6 –2.2 –0.9
Tm –0.3 –0.4 –0.3 –0.4 –0.2
Yb –2.1 –2.6 –1.8 –2.3 –1.0
Lu –0.4 –0.5 –0.4 –0.4 –0.2
Pb 11 –3 5 3 15
Trace elements (g/kg):
Cd –196 –296 –155 –218 750
In –8 –44 20 66 93
Sb 316 9,600 395 130 51,500*
Te 716 175 1,434 1,533 390
Cs –553 –535 –592 –567 –615
Tl 142 –2 1,057 730 1,050
Bi 160 103 565 1,375 430
Th –515 –664 –365 –534 –144
U –226 –314 1,940 1,155 1,060
Total gain/loss (g/kg)(excluding H2O) 8 –8 –87 –265 89

Notes: N = number of samples. * = extreme nugget effect.