Table T12. Representative microprobe analyses of zeolites from veins, Hole 735B.
 
Core, section, interval (cm):
37R-2,
113-117
57R-4,
123-133
84R-6,
31-41
122R-3,
135-139
123R-6,
140-144
161R-3,
128-135
168R-7,
131-135
178R-4,
74-77
203R-2,
11-16
57R-4,
123-133
64R-2,
100-105
71R-2,
115-125
120R-1,
85-91
121R-3,
48-52
207R-4,
102-107
Number of analyses:
1
2
1
2
2
3
1
4
5
2
2
1
2
2
2
Mineral:
Nat
Nat
Nat
Nat
Nat
Nat
Nat
Nat
Nat
Thom
Thom
Thom
Thom
Thom
Thom
Major element oxide (wt%):
SiO2 50.33 45.52 46.49 49.21 53.29 50.14 50.37 50.56 51.19 39.21 39.83 38.43 41.87 42.39 38.42
Al2O3 22.52 26.57 26.49 29.07 28.73 27.98 28.27 28.45 28.67 29.39 28.94 29.54 28.24 27.93 29.38
CaO 0.01 1.05 0.52 2.41 0.62 0.76 0.24 0.69 0.57 11.65 11.58 11.90 10.99 10.86 12.53
Na2O 13.58 14.08 15.35 5.19 6.56 8.60 9.50 8.57 8.19 4.65 4.95 4.23 2.32 2.43 2.81
K2O 0.03 0.08 0.02 0.03 0.04 0.01 0.04 0.01 0.00 0.04 0.04 0.00 0.00 0.02 0.02
F 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.00 0.00 0.00 0.00 0.00
Cl 0.00 0.02 0.00 0.01 0.02 0.00 0.03 0.00 0.00 0.04 0.00 0.00 0.01 0.00 0.01
Total: 86.53 87.41 88.87 85.88 89.20 87.48 88.39 88.28 88.62 85.23 85.33 84.10 83.42 83.63 83.14
Number of ions based on 40 O:
Si 26.1981 23.8237 23.9551 25.0055 25.9286 25.2446 25.1504 25.2055 25.3399 21.2799 21.5221 21.0678 22.6814 22.8879 21.2075
AlIV 13.8019 16.1763 16.0449 14.9945 14.0714 14.7554 14.8496 14.7945 14.6601 18.7201 18.4333 18.9322 17.3186 17.1121 18.7925
AlVI 0.0148 0.2190 0.0420 2.4126 2.4017 1.8458 1.7894 1.9244 2.0652 0.0807 0.0000 0.1537 0.7090 0.6638 0.3197
Ca 0.0028 0.5909 0.2871 1.3120 0.3250 0.4123 0.1310 0.3699 0.3032 6.7740 6.7022 6.9891 6.3785 6.2807 7.4090
Na 13.7072 14.2847 15.3340 5.1155 6.1906 8.3919 9.1964 8.2763 7.8594 4.8927 5.1857 4.4957 2.4372 2.5472 3.0042
K 0.0198 0.0553 0.0131 0.0197 0.0280 0.0040 0.0255 0.0078 0.0012 0.0278 0.0242 0.0000 0.0000 0.0149 0.0140
Ba 0.0135 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0061 0.0000 0.0000 0.0000 0.0000 0.0000
Total: 53.7581 55.1499 55.6762 48.8599 48.9454 50.6540 51.1423 50.5784 50.2290 51.7813 51.8675 51.6385 49.5247 49.5066 50.7469

Note: Nat = natrolite; Thom = thomsonite.