What is a kettle bog?
Kettlehole bogs are flat peatlands in “kettles,” circular or elliptical depressions, usually deeper than they are wide, formed in morainal, glaciofluvial, or coastal plain deposits by the melting of buried ice blocks.
What does kettle holes mean in geography?
kettle, also called Kettle Hole, in geology, depression in a glacial outwash drift made by the melting of a detached mass of glacial ice that became wholly or partly buried. The occurrence of these stranded ice masses is thought to be the result of gradual accumulation of outwash atop the irregular glacier terminus.
What does a kettle hole look like?
The ice becomes buried in the sediment and when the ice melts, a depression is left called a kettle hole, creating a dimpled appearance on the outwash plain. Lakes often fill these kettles; these are called kettle hole lakes.
How is a kettle hole formed?
Depressions, known as kettles, often pockmark these outwash plains and other areas with glacial deposits. Kettles form when a block of stagnant ice (a serac) detaches from the glacier. Eventually, it becomes wholly or partially buried in sediment and slowly melts, leaving behind a pit.
Why is it called a kettle lake?
…with water they are called kettle lakes. Most kettles are circular in shape because melting blocks of ice tend to become rounded; distorted or branching depressions may result from extremely irregular ice masses. … kettles and so are called kettle lakes.
Where are kettle ponds?
outer Cape Cod landscape
Kettle ponds are scattered across the outer Cape Cod landscape, an area consisting of glacial outwash plains that formed during the retreat of the Laurentide ice sheet some 18,000 years ago. Depressions in the outwash plain are called kettle holes.
Why are they called kettle holes?
As the glacier retreats the block of ice is left stranded. The ice then gets surrounded and possibly buried by subsequent meltwater deposits and outwash. Eventually, when the temperature increases and the ice block melts it leaves a large depression in the ground that the ice occupied. These are known as kettle holes.
What is the largest kettle lake?
When a kettle is filled with water, it is called a ketttlehole lake. Several kettlehole lakes are well known and popular destinations for recreation. The most famous kettlehole lake is Walden Pond in Concord. The largest kettle in the world is Lake Ronkonkoma on Long Island.
Where are the largest kettles located?
The largest kettle in the world is Lake Ronkonkoma on Long Island. Kettlehole lakes are extremely deep compared to conventional lakes.
What does knob and kettle mean?
Knob and kettle are landforms of glaciations wherein, A knob is a stratified geomorphologic feature which is created by deposition action of glacier meltwater. It is an irregularly shaped hill or mound composed of sand, gravel, and till, commonly associated with end moraine.
What’s a kame Terrace?
Definition of kame terrace : a terrace of stratified sand and gravel deposited by streams between a glacier and an adjacent valley wall.
Can you swim in a kettle lake?
Swimming is allowed in all of the 22 lakes, however there are two main beach areas that we recommend you checking out as you will have more room to enjoy yourself. The beaches are located on Island Lake and Slab Lake with a playground also available for the kids at Slab Lake.
What is a kettle hole?
Written By: Kettle, also called Kettle Hole, in geology, depression in a glacial outwash drift made by the melting of a detached mass of glacial ice that became wholly or partly buried.
What is a kettle in geography?
Kettles are fluvioglacial landforms occurring as the result of blocks of ice calving from the front of a receding glacier and becoming partially to wholly buried by glacial outwash. Glacial outwash is generated when streams of meltwater flow away from the glacier and deposit sediment to form broad outwash plains called sandurs.
What causes a kettle hole lake to form?
The ice becomes buried in the sediment and when the ice melts, a depression is left called a kettle hole, creating a dimpled appearance on the outwash plain. Lakes often fill these kettles; these are called kettle hole lakes. Another source is the sudden drainage of an ice-dammed lake.
How is a kettle hole rampart formed?
Overview. The kettle holes are formed by the melting blocks of sediment-rich ice that were transported and consequently buried by the jökulhlaups. It was found in field observations and laboratory simulations done by Maizels in 1992 that ramparts form around the edge of kettle holes generated by jökulhlaups.