Little Kettle Impression EarthCache
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Tucked away in the centre of town, Little lake park has been aptly named, for it surrounds, a 'little' lake.
This lake, created by Pleistocene glaciers, is a kettle landform. Kettle holes and lakes are created when a block of ice breaks
away from the glacier (calving) during the glacier's retreat.
As the glacier continues to retreat, the till created by pulverizing the minerals in the rock over which the ice sheet passes, is then pushed
over top the ice block, completely burying it.
As the climate warmed, this ice block then melted leaving a depression in landscape called a kettle hole.
Melting blocks of ice have a tendency to become rounded, creating a perfectly round shaped depression. If the ice mass is irregular then a
distorted or branching depressions may result.
Kettles may range in size from 5 m to 13 km in diameter and up to 45 m in depth. The typical kettle hole depth is less than 10 metres and less than 2 kms in diameter.
The glacial sediment, when suspended in the water column, causes a large growth of algae which gives the water a green coloured appearance
Kettle Classification
Kettle Pond: receives it's water from the water table, from precipitation or from both.
Kettle Wetland:receives it's water from the water table, from precipitation or from both AND is vegetated
Kettle Lake:is fed by surface or underground rivers or streams.
Kettle ponds: that are not affected by the groundwater table will usually become dry during the warm summer months.
Ephemeral Kettle: is not affected by the water table and is not fed by rivers or streams. This kettle pond will therefore become dry during the summer season.
Kettle Hole:depression left in the landscape that does not fill with water and is above the water table.
In order to log a find for this earthcache it is necessary for you first to send answers to the following questions through our profile.
If you would like a reply to your answers, be sure to select the 'include your email address' option with your message.
1. Determine the class of kettle landform.
If you need a hint, observe the waters edge as you travel west along the trail. **there is no sign and never was**
2. The glacial sediment, when suspended in the water column, causes a large growth of algae which gives the water a green coloured appearance. (See image example for Awenda Provincial Park)
a) From posted coords, do you notice this feature b) Using google earth?
3. Measure the distance across the kettle
4. Describe the shape. Explain the reason this shape
5. Take a photo of your GPS'r with this earthcache site in the background. Pictures of your team are welcome but not required.
Additional Hints
(No hints available.)
Treasures
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