This report presents a number of findings that are based on the natural landscape of The Spit, such as the geomorphic processes that have shaped The Spit and the geographical features.
The Spit contains many geographical features, both natural and built. A natural geographical feature that was identified was headlands. These boulders were being constantly eroded due to abrasion waves, causing bits of rock and sand in the waves to grind down surfaces of the rock. Other natural features sighted were beaches and sand dunes, as seen in the field work booklet on pages 12 and 13. The sand dune was shaped like a dome and consisted mainly of sand and rock particles and was formed from the process of deposition, which is when constructive waves carry sand and rock particles ashore. The Spit also contains a number of built features to help maintain and conserve the environment such as the seawall and jetty which are considered as hard engineering and sand dune which is soft engineering. The jetty, also known as the Sand Bypass System was implemented to help support jet pumps transport northerly drifting sand trapped by the Southern Seaway Wall. …show more content…
In 1896, the tidal flows in Moreton Bay and the Broadwater were dramatically changed when the sea broke through Stradbroke Island, creating the process longshore drift. This is when constructive waves create a stronger swash than backwash creating deposition. As a result, a small sand spit began to develop from Main Beach. However, human activities also played a role in the formation and change in The Spit. For example, thousands of people who come to visit The Spit step and walk on sand dunes and other vegetation, leaving marks behind and changing the shape of the
The Spit contains many geographical features, both natural and built. A natural geographical feature that was identified was headlands. These boulders were being constantly eroded due to abrasion waves, causing bits of rock and sand in the waves to grind down surfaces of the rock. Other natural features sighted were beaches and sand dunes, as seen in the field work booklet on pages 12 and 13. The sand dune was shaped like a dome and consisted mainly of sand and rock particles and was formed from the process of deposition, which is when constructive waves carry sand and rock particles ashore. The Spit also contains a number of built features to help maintain and conserve the environment such as the seawall and jetty which are considered as hard engineering and sand dune which is soft engineering. The jetty, also known as the Sand Bypass System was implemented to help support jet pumps transport northerly drifting sand trapped by the Southern Seaway Wall. …show more content…
In 1896, the tidal flows in Moreton Bay and the Broadwater were dramatically changed when the sea broke through Stradbroke Island, creating the process longshore drift. This is when constructive waves create a stronger swash than backwash creating deposition. As a result, a small sand spit began to develop from Main Beach. However, human activities also played a role in the formation and change in The Spit. For example, thousands of people who come to visit The Spit step and walk on sand dunes and other vegetation, leaving marks behind and changing the shape of the