Transcript 5Dees Field Trip Report - D

F.5 Geography
Field Trip Report
Destination: Shek O
Topic: Coast
About………..
• Date: 2nd October, 2000.
• Destination: Shek O
• Weather: Very hot , no cloud.
• Teacher: Mr.P Lui
• Group members: Richard, Gary, King,
Charlie, Michael, Jeff, Kay, Kathy.
Stop 1: Shek
O Beach
Shek O Beach
• What type coastal feature is it?Beach
• Describe the location of the beach in relation to the
headland.It is a bay-head beach which lies at the head of
a bay between 2 headlands.
• Estimate the size of the beach.About 1.02Km
• What are the main materials that formed the
beach?Sand, pebbles
• Which direction is the beach facing?South or SSE
• What facilities are provided to the beachgoers?Toilets,washing rooms,shops……
• What are the unfavourable factors to develop Shek O
as a major tourist resort in HK?the transportation
network is not well-developed.
Stop 2:
Shek O Headland
• Name the type of rock in the headland.granite
• The rocks along the coast are being
weathered/eroded.Suggest the erosional agents to the
formation of the feature.Sea water ,waves
• What weathering processes are being taken place in the
area?Hydraulic action, abrasion, attrition, solution
• Looking at the offshore island in the southern side of the
headland. It is Ng Fan Chau. What coastal feature(s) can
you find on the island?Block disintegration, cracks
and Sea caves
granite
Ng Fan Chau
Stop 3
Shek O Headland Bridge
• Describe the materials you can find around
this area.Sand,rock,boulders,pebbles
• Measure the size of materials in 2 different
locations-one is on the southern shore and
another is on the northern shore.Is there any
difference between the size of materials?In
the north,the materials are smaller but in the
south,the materials are larger.
• Name the coastal feature formed in the
area.Tombolo
Tombolo
A simple sketch diagram.
The formation of tombolo
• The two islands (HK islands and
Tai Tau Chau)provide shelter to
the shallow sea in between against
the prevailing winds.
• Then the longshore drift brought
in materials and deposited them in
slack water.
• A sand spit is formed on each
island.
• As the 2 sand spits continue to
grow longer, the finally join up.
• The two separate islands are
Stop 4
Tai Tau Chau
• On Tai Tau Chau, you can see a rock
which is affected by
denudation.Identify the type of
weathering process being take place.
•Block disintegration
A sketch diagram
• What is the coastal feature formed in the
southern part of the headland?Geo
• Estimate the height of the feature.Not
clear,about 100metres
• List out the favourable factors for its formation.
• It is exposed coast with long fetch and deep coastal
water.Destructive waves are common.Therefore,
there is wave erosion.
• At the Tai Tau Chau pavilion, try to look
around and see whether you know the names
of surrounding land and sea.We can see Tseung
Kwan O in the north.Shek O headland and Ng Fan
Chau in the south.
Geo
Others:
Sea cave
Block
disintegration
Members:
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Richard
Gary
King
Jeff Choy
Charlie
Michael
Kay
Kathy
The END