Table 5. Electron microprobe analyses of glasses for Holes 985A (lower Pliocene-middle Miocene? sequence) and 985B (lower Pliocene-upper Miocene sequence). (Continued on next 4 pages.)
| Sample: Interval (cm): Layer: Remarks: Type: Part./points: |
162-985A-11H-3 55-56 985-1t Top of the layer AL 11f/20p |
162-985A-11H-3 34-35 985-1b Base of the layer AL 13f/28p |
162-985A-12H-5 109-111 985-8 AL 17f/39p |
162-985A-16H-2 88-90 985-16 AL 9f/23p |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | SD | Average | SD | Average | SD | Average | SD | ||||
SiO2 |
70.02 |
0.26 |
69.93 |
0.60 |
68.51 |
0.39 |
70.39 |
0.33 |
|||
TiO2 |
0.25 |
0.03 |
0.25 |
0.02 |
0.24 |
0.03 |
0.07 |
0.02 |
|||
Al2 O3 |
11.65 |
0.10 |
11.61 |
0.11 |
12.63 |
0.07 |
11.95 |
0.11 |
|||
FeO* |
2.85 |
0.08 |
2.76 |
0.21 |
2.45 |
0.08 |
1.17 |
0.07 |
|||
MnO |
0.11 |
0.03 |
0.11 |
0.03 |
0.09 |
0.03 |
0.06 |
0.03 |
|||
MgO |
0.02 |
0.02 |
0.02 |
0.01 |
0.17 |
0.02 |
0.03 |
0.01 |
|||
CaO |
1.25 |
0.05 |
1.24 |
0.12 |
0.72 |
0.03 |
0.54 |
0.02 |
|||
Na2O |
4.90 |
0.14 |
4.90 |
0.12 |
4.98 |
0.10 |
4.12 |
0.11 |
|||
K2O |
2.81 |
0.08 |
2.87 |
0.09 |
3.66 |
0.09 |
4.06 |
0.13 |
|||
P2O5 |
0.04 |
0.03 |
0.04 |
0.02 |
0.04 |
0.02 |
0.02 |
0.02 |
|||
 (vol.-free) |
93.92 |
93.73 |
93.50 |
92.41 |
|||||||
SO2 |
|||||||||||
F |
0.12 |
0.02 |
0.12 |
0.02 |
0.15 |
0.03 |
0.09 |
0.02 |
|||
Cl |
0.09 |
0.02 |
0.09 |
0.02 |
0.19 |
0.02 |
0.14 |
0.02 |
|||
Total |
94.12 |
93.95 |
93.84 |
92.64 |
|||||||