Napanee River Erosion
During a recent canoe trip down the Napanee River, I noticed changes that were quite
visible, now that the water is at it's lowest point ever.
So I took a few pictures and hit the internet to find out more
about what I saw.
What I saw was Erosion doing it's thing.
So just what is Erosion?
It is
Erosion is the process by which soil and rock are removed from the Earth's surface by natural
processes such as wind or water flow, and then transported and deposited in other locations.
as defined on Wikipedia
In this particular area at GZ, Water has caused most of the Erosion here.
Types of Erosion by Water:
-
Sheet Erosion: Raindrops break apart the soil structure and it's
moved down-slope by water that flows overland as a sheet rather than definitive channels.
This occurs frequently during cloud bursts.
-
Rill Erosion: This process develops small, short-lived,
concentrated flow paths. These paths creates a sediment source and delivery system for hill-slope erosion.
Areas where precipitation rates exceed soil infiltration rates are more prone to this type of erosion.
-
Valley or Stream Erosion: Continual water flow alongside land (along a linear feature) creates this type of erosion.
It extends downward, deepening a valley, and head-ward, extending the valley into the hillside.
This occurs most frequently in times of flooding.
To qualify for logging this Earth Cache please send me the answers to the following
3 questions, via my Geocaching profile.
Do Not put eth answers in your online log.
Question #1
Find and describe 3 signs of erosion at GZ
Question #2
In the Types of Erosion listed above, how many can be seen at GZ?
Question#3
Look at the soil on the slope near GZ, is it loose or compacted?
Now check it out.
Did you Guess correct?
What caused it to be this way?
As an option, I would like a picture at GZ, showing the current water levels
Happy Earth Caching
Coman123
Please do not seek this cache until 9am on August 25th,2012