sarah - coastal landform
DESCRIPTION
Student work - Sarah 13GEO Katikati CollegeTRANSCRIPT
Beaches of New Zealand
Black Sand Beaches: Piha
Location:
Piha beach is west of
Auckland, it is only an
hour and a half drive
from the city centre.
Black Sand Beaches: Piha
Characteristics:Piha beach is a blacksand beach. A dominantfeature is lion rockwhich the public areable to climb. Piha’slittoral zone is 300-500m and the beachextends 2km.
Black Sand Beaches: Piha
How it was formed:Through successiveeruptions of Mount Taranakiminerals such as greenaugite, hornblende andmagnetite have beendeposited and tides + windsetc have carried them ontonorthern beaches such asPiha. The sand is blackpartly due to its high ironcontent.
Fiordland- Milford Sound
Location: Fiordland is
located in the southern
west coast of the south
island. It is an
approximate 2 hour
drive from Queenstown.
Fiordland- Milford Sound
Characteristics:Fiordland is hardlytouched/ changed byhumans. There are only2000 permanentresidents and very fewroads. The area is full ofmountains, fiords, rivers,lakes and the abundantforest. The coastline is veryrugged.
Fiordland- Milford SoundHow it was formed:
It starts as a V shaped valleyWhen a glacier forms in a cirque it begins to progress down the valley…
…carving the valley walls as it travels
Finally a U shaped valley remains.
As the ice melts the water level rises (along with other water supplies draining into this new valley) a fiord remains. A valley submerged with only the mountainous peak protruding.