Holocene glacial retreat

From The Book of THoTH (Leaves of Wisdom)

Holocene glacial retreat had a profound effect on landscapes in many areas that were covered by ice at the Last Glacial Maximum. The many valleys of the Cairngorms, a mountainous region in the Eastern Scottish Highlands are littered with deposits from this period.

Eight records of local temperature variability on multi-centennial scales throughout the course of the Holocene, and an average of these (thick dark line).

Geographical alterations

Flooding of the Bering Land Bridge

Retreat of icecaps into mountainous regions

Desertification of North Africa

Changes in sea level during the Holocene.

Evidences of the retreat of the ice sheets

• Terminal moraine
• Altered river courses

The modern Ohio River was formed when the river was temporarily dammed just southwest of Louisville, Kentucky, creating a large lake until the dam burst. The Ohio River largely supplanted the former Teays River drainage system, which was disrupted by the glaciers.

• Ancient shores

Ancient Lake Chicago, on the southern margin of the Wisconsin Glacier, found successive lower outlets as the glacier retreated, until the Saint Lawrence River route was uncovered. Corresponding to each level, remnant lake shore features may be found in many areas. One prehistoric shoreline is delineated by Bluff Avenue, a north-south street on the La Grange, Illinois east side.

• Glacial erratics

External links

• The Post-Glacial Period Holocene Epoch
• Tongass National Forest overview of glaciers
• Late Pleistocene–Holocene retreat of the West Antarctic Ice-Sheet system
• some basics
• Late Holocene Glaciation of the McCarty and Northwestern Fjords, Alaska
• HOLOCENE EVOLUTION OF MOUNT RAINIER'S ENVIRONMENT
• CO2 Science