Geography Sba on Coastal Features

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  • Topic: Erosion, Beach, Sediment
  • Pages : 8 (1773 words )
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  • Published : March 19, 2013
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Geography School Based Assessment ( S.B.A)

Topic: What Are The Effects Of Wave Processes On The Coastline Of Robin’s Bay St Mary. Centre Number: 100013
Candidate Name: *********
Registration Number:
Year of Examination: 2012
School: Calabar High School
Teacher: **********
Territory: Jamaica

Contents
Topic ……………………………………………………………………………………………………………………………………………………3 Aim ………………………………………………………………………………………………………………………………………………………3 Methodology ……………………………………………………….……………………………………………………………………………..4 Site Map ………………………………………………………………………………………………………………………………………………5 Map Of Jamaica .………………………………………………………………………………………………………………………………….6 Analysis Of Data

Don Christopher’s Cove ………………………………………………………………………………………………………………………7 Peyton’s Cove …………………………………………………………………………………………………………………………………..15 Conclusion …………………………………………………………………………………………………………………………………………….17

Bibliography20
Appendix ………………………………………………………………………………………………………………………………………21

Topic

What are the effects of wave processes on the coastline of Robin’s Bay North East St. Mary?

Aim

1. To identify the types of wave processes operating along the coastline at Don Christopher’s Cove St. Mary. 2. To describe the features formed along the coastline from Don Christopher’s Cove to Peyton’s Cove

Methodology

On the 24th of May 2011 a group of geography students embarked on a field trip to Robin’s Bay North East St. Mary to study the effects different wave processes have on the coastline in the vicinity of Don Christopher’s Cove and Peyton’s Cove.

At Don Christopher’s Cove the wave-cut platform was observed upon arriving on the beach of Don Christopher’s cove, sediments were randomly selected for observation in order to determine the soil type, further study was done using a metre rule to determine the wave height, a measuring tape to record the swash and a stop watch to find the frequency of the waves. These were all done in order to determine the nature of the waves (Constructive or Destructive) operating in the vicinity.

At Peyton’s Cove using apparatus forementioned in the paragraph above, the wave height, length of the swash and frequency of the waves were found. All other procedures were hindered by heavy rainfall. Sketches of all features at both locations were drawn.

Site Map

Map Of Jamaica Showing Area of Study.

Analysis
Don Christopher’s Cove

At Don Christopher’s Cove a wave-cut platform, a beach, a river and a headland were the features observed.

Cove

A Cove is a smaller type of bay formed when alternating bands of hard and soft rock are exposed to the erosive processes of the waves, which erode the softer rock faster than the hard rock which eventually forms an inlet, it is further eroded to form a circular bay with a narrow entrance. Don Christopher’s Cove fits the definition stated above. This cove is composed of shale sandstone and limestone, shale sandstone being the softer of the two, it was eroded by destructive waves influenced by the North East Trade Winds eroding it inland forming this cove with a beach and a wave-cut platform that is now present. The resistant rock remains to form what is known as a headland. The diagram on page 8 shows Don Christopher’s and its current features.

Beach

A beach is an area of gently sloping land where constructive waves deposit its load. At Don Christopher’s Cove a beach was also observed. This beach consisted of mostly shale sandstone sediments which was brought about by the eroding of the cliffs and headlands and transported by longshore drift. This beach...
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