Michigan Geology
The Milankovitch Cycle describes how relatively small changes in Earth's movement affect the climate.
This is a picture of some of Michigan's bedrock geology. This shows how as you get closer to the shoreline, the bedrock geology changes.
Michigan Geology-Copy
Kames are hills that are either formed from depressions at the top of a glacier or the delta of a subglacial stream.
Eskers are long winding ridges of stratified gravel, sand and silt. They formed underneath ice that was standing still as opposed to moving ice.
Drumlins are subglacial, teardrop shaped hills that show the direction of the ice flow.
Moraines are a type of landscape that is formed from the leading edge of an ice sheet pushing against the ground and lifting up materials.
Glacial Drift is what occurs when materials that are picked up from the glacial ice is deposited by the melt water from the same ice. It tends to be more sorted than Glacial Till.
Glacial Till is glacial ice deposits that are less well formed than Glacial Drift.
Interlobate Regions are areas between two different ice sheets.
Erratics are boulders that have been moved by the force of glacial ice.
Kettle Lakes are calved off chunks of ice that became buried in sediment.
The Great Lakes were formed from glacial ice widening and growing river valleys and then melting and filling up the river valleys that it cut out.
Ancient Shore Lines
