Esker Bay EarthCache
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Since most of Canada was glaciated during he last ice age, glacial landforms are a common occurrence throughout the country.
Eskers are one of the most easily recognizable of the glacial landforms.
The esker at Esker Bay is one of many eskers found around Point Lake and is accessibly by boat, float plane or helicopter.
Originating from the Old Irish root 'escir' meaning "a ridge or elevation separating two depressed surfaces", eskers are formed when sand and gravel are deposited by glacial meltwater streams. The sediment composition of eskers vary greatly in size depending on the velocity of the meltwater streams and how they were deposited.
During the early stages of diamond exploration in the Northwest Territories, esker sediments were sampled by geologists. The samples were analyzed for minerals associated with kimberlite (the diamond bearing ore body) and the location of the kimberlite pipes were back tracked in relation to the glacier movement.
To log this cache:
A) email to the cache owner identifying the following at the posted coordinates;
1 - the size of the sediment material composition of the esker,
2 - the height of the esker and;
3 - which of the two types of meltwater streams you suspect resulted in the formation of the esker.
B) post a photo at / near the location.
Additional Hints
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Treasures
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