Humanities Field Trip 2011. By: John-Michael McIntyre. What?. For our second term as MYP 5 Humanities students we learnt about, the physical processes affecting Barbados. We looked at: mass movement, long shore drift, erosion, and coastal management etc.
By: John-Michael McIntyre
The first stop
In this picture you can see evidence of quartz on the east coast. This picture was taken just north of Barclay Park on a large rock which was filled with quartz. These quartz would’ve come from the South Americas.
This is a picture with a rock that has been oxidized. Oxidation is when things begin to rust or when Ferris oxide affects the object. You can see when something has been oxidized by the orange brown colour it has just like rust.
This is some sediment and some clay that has built up over time and has become hard. Even though it is solid and hard they break off easily and are kind of brittle.
This is a diagram of Long shore Drift. What happens is the wind pushes the waves on an almost 90 degree angle and then between the swash and backwash it begins to angle the beach. When groynes are in place it makes some parts of the beach build up sand while other parts which are not protected by the beach lose sand and then coastal erosion starts to begin. This is what happened at Mullins Bay.
This is on the other side of the groynes where the beach is not protected. Notice that much of the land is eroded because the waves have been hitting that part of land and over time it eroded. Also notice the trees that have fallen into the water also because of erosion. This is all because of long shore drift and the groynes.
This is a picture of one of the main groynes in Mullins Bay. Notice how because of the groyne that the sand has built up a lot on one part of the beach.
The third and final stop
This is a picture of some groynes located by the Boardwalk. These groynes were put in place to lessen the effects of long shore drift and coastal erosion. These groynes are made out Canadian granite.
This is the board walk. It is 1.2 km long. The wood is imported from Guyana because of its resilience to the sea water. This project cost about 9.8 million U.S.D.
The CZMU stands for the coastal zone management unit. During our trip one of their employees came and lectured us about the boardwalk project. They are responsible for maintaining the boardwalk and other coasts in Barbados.
Around the Board walk there are various headlands etc. This is half of a picture of one. The headlands stick out and are made to be aesthetically pleasing. They’re surrounded by Canadian granite for further protection.
There are many beaches on by the Boardwalk. In this picture because of these groynes and the waves this beach has become a sort of mini bay.