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THE JOURNAL OF GEOLOGY.
| Period. | Epoch. | Ice Sheet. | Elevation of Land. | Erosion. | Deposits. | Temperature. | Fauna and Flora. | Man. | Probable Duration (1000 yrs). | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Proteroglacial. | 1. | 1. Grows to the ocean slope. |
Sinks from 2-400 M. above the present to about the present (?) |
1 & 2. Norwegian channel. |
Undermost bottom moraine on continental side. Terrace plain sub- marine around the west coast. |
Sinking from the warmer Pleistocene to 8-10° C. below the present mean. |
Arctic. | No traces. | 100-150 | ||
| 2. | 2. Terminal glaciers in the fiords, eastern margin near Petschora. |
2. The great fiords. | |||||||||
| Interglacial. | 1. | None (?) | The present (?) | The present forces. |
Intermediate sand layers at Jaederen(?) |
At times warmer than now. |
1. |
Reindeer |
3. Danish kökken möddinger. Western brachyceph. in Norway. |
15-20 | |
| 2. | 2. |
Elk. Populus | |||||||||
| 3. | 3. |
Bos primig. | |||||||||
| Deuteroglacial. | 1. Ra-Epoch | 1. Grows to the fiord heads, terminal moraine Baltic tongue. |
1. Sinking to about 250 M. below the present near the ice centre. |
1 Ra-lakes and intermediate lakes behind moraines. |
1. Terminal moraine. Upper diluvium round the Baltic. |
2.5-5 C. lower than the present. |
? | 15-25. | |||
| 2. Epiglacial. | 2. Terminal glaciers in the lakes behind the fiord heads. |
2. Upper ancient beach. | 2. Great lakes near the fiords. Gaps at the watershed. Sack valleys. |
2. High marine terraces. | 2. Arctic (Leda clay). |
2. 10-20. | |||||
| Postglacial. | 1. Boreal. | 1. Melting rapidly. | 1. Rising rapidly. | 1. Rivercuts in epiglacial terraces. |
1. Small terraces. | 1. About 3° C. warmer. |
1. Boreal (oak, ash). |
1. Neolithic immigration. | 7-9. | ||
| 2. Subglacial. | 2. Gone except across the eastern valleys. |
2. At the lower (40 pct.) ancient beach. |
2. Lakes in central Norway. Seter. |
2. Terraces at 40 pct.; inland terraces. |
2. As now. | 2. As now. | 2. Neolithic man. | 2. 2-3 | |||
| 3. Sub-boreal. | 3. Melting away. | 3. Rising to the present. | 3. As now. | 3. Small terraces. | 3. Somewhat higher. | 3. Some southern forms. Pine in the peats. |
3. Bronze age at 10 pct. of the upheaval. |
||||
| 4. Recent. | 4. Gone. | 4. The present. | 4. The present. | 4. The present. | 4. The present. | 4. The present. | 4. Iron age, historical time. |
4. 2. | |||
|
Naes. Hedem. August, 1893. |
ANDR. M. HANSEN. |