Where The Earth and The Ocean Wave EarthCache
Where The Earth and The Ocean Wave
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A beautiful spot to see the majesty of the Northumberland Strait,
as well as the impressive structure of the Confederation Bridge.
This location is somewhat off the beaten track, as it located by a
small provincial park. Be aware of the tide!!
Preglacial and glacial valleys eroded into red sandstone and
siltstone lead from both ends into the floor of the Gulf of St
Lawerence. The retreat of glacial ice from the strait and
surrounding area about 13 000 years ago was followed by flooding by
the sea. Soon after, isostatic uplift excluded the sea from the
central area, which became an isthmus joining opposite coasts. By
5000 years ago, the rising sea level had flooded this link,
establishing the strait, which has been slowly deepening.
The Gulf of St. Lawrence, including Northumberland Strait, has
patches of reworked sand and gravel, glacially derived marine silt,
and clays at greater depths. Sediments originated largely during
the post-glacial period as the sea transgressed the area and
reworked material deposited during the glaciation, but sediments
originate locally through erosion of coastal bedrock. From the
coordinates, two signs of the coastal erosion can be readily seen.
The first involves finding a solid sandstone "wave" at the
coordinates. The second is the result of the ocean waves.
In order to claim the earthcache there are three tasks
required.
1) Go to the posted co-ordinates and have your picture taken,
preferably with gps in hand on the solidified "rippled" sand stone
(see sample photo)Please post this photo with your log!
2) Approximately 20 metres from the coordinates, there is another,
more apparent sign of the costal erosion. Take a second picture
near this location (it's quite large, especially length wise, to
give a hint).Please post this photo with your log!
3) In some form, either by measurement, approximation or
description, describe the future effect erosion will have on this
site. Email your answer to the cache owner
Once you have posted your "find", you will have 48 hours to post
photos and e-mail answers to the cache owner. Logs not meeting all
requirements will be deleted!!
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