Table 4. Electron microprobe analyses of glasses for Holes 982A (lower Pliocene-upper Miocene sequence), 982B (lower Pliocene-lower Miocene? sequence), and 982C (upper Miocene sequence). (Continued on next 5 pages.)
| Sample: Interval (cm): Layer: Remarks: Type: Part./points: |
162-982A-16H-6 4-6 982-1* DA? 12f/28p |
162-982A-18H-2 90-92 982-2 AL? 19f/43p |
162-982A-24H-2 75-77 982-3 DA 12f/23p |
162-982B-14H-CC 13-25 982-5 AL 17f/53p |
162-982B-15H-3 129-130 982-6 AL 15f/39p |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | SD | Average | SD | Average | SD | Average | SD | Average | SD | |||||
SiO2 |
70.39 |
0.42 |
70.92 |
0.44 |
67.15 |
0.68 |
70.66 |
0.32 |
67.12 |
0.27 |
||||
TiO2 |
0.21 |
0.03 |
0.23 |
0.03 |
0.33 |
0.05 |
0.19 |
0.03 |
0.33 |
0.03 |
||||
Al2O3 |
11.82 |
0.08 |
11.72 |
0.08 |
12.2 |
0.18 |
11.54 |
0.09 |
12.23 |
0.1 |
||||
FeO* |
2.7 |
0.09 |
2.54 |
0.08 |
3.83 |
0.31 |
2.52 |
0.07 |
4.36 |
0.1 |
||||
MnO |
0.1 |
0.03 |
0.1 |
0.04 |
0.15 |
0.04 |
0.08 |
0.04 |
0.17 |
0.04 |
||||
MgO |
0.01 |
0.01 |
0.1 |
0.01 |
0.1 |
0.03 |
0.01 |
0.01 |
0.02 |
0.01 |
||||
CaO |
1.19 |
0.06 |
1.38 |
0.05 |
1.46 |
0.19 |
0.32 |
0.03 |
1 |
0.03 |
||||
Na2O |
4.11 |
0.1 |
3.94 |
0.09 |
5.26 |
0.11 |
4.25 |
0.14 |
4.83 |
0.14 |
||||
K2O |
3.13 |
0.13 |
2.78 |
0.08 |
2.84 |
0.14 |
4.19 |
0.23 |
3.36 |
0.06 |
||||
P2O5 |
0.03 |
0.02 |
0.05 |
0.02 |
0.06 |
0.02 |
0.02 |
0.02 |
0.04 |
0.02 |
||||
 (vol. free) |
93.69 |
93.77 |
93.38 |
93.78 |
||||||||||
SO2 |
||||||||||||||
F |
0.13 |
0.02 |
0.07 |
0.02 |
0.1 |
0.02 |
0.17 |
0.02 |
0.13 |
0.02 |
||||
Cl |
0.13 |
0.02 |
0.06 |
0.02 |
0.09 |
0.01 |
0.23 |
0.02 |
0.15 |
0.02 |
||||
Total |
93.96 |
93.90 |
93.58 |
94.18 |
||||||||||