Characteristics and interactions for stack and dunes

50 %
50 %
Information about Characteristics and interactions for stack and dunes

Published on March 13, 2014

Author: mrsmithtgs



Characteristics of features and interactions of processses at Muriwai

The Stack

Characteristics • Manukau Breccia • Pohutukawa on top • 35m tall • West of otakamiro headland between maori bay and muriwai beach • Evidence of erosion eg notch

How processes interact. • Tectonic activity creates the manukau breccia. • Faulting lifts up the headland along the muriwai helensville fault. • Now wave erosion can occur • Wave erosion occurs on the headland to form a cave. • Wave erosion provides sediment for corraision to occur in the cave • Corraision makes the cave erode through to create a sea arch. • The Vegetation growth weakens the cave roof and makes it fall in . • Vegetation growth and wave erosion combine to create the stack.

The Sand Dunes

Characteristics • Southern end dunes are 15 – 20m high • Dunes by okiritoto stream are 8 – 10m high • Made up of quartz, feldspar at top titanomagnetite at bottom • Covered in Marram, Pingao and Spinifex

Interaction of Processes • LSD brings in the sediment • Insolation dries out the sediment or it would not be able to be moved • Onshore winds pick up the sediment and move it to the back of the beach • Dune vegetation catches the sediment moved by the wind as it stops the aeolian action by stopping the wind.

Add a comment

Related presentations

Related pages

Sand dune ecology - Wikipedia, the free encyclopedia

Sand dune ecology describes the biological and physico-chemical interactions that are a characteristic of ... interesting and characteristic plants that ...
Read more

Interactions Between Dune Activity and Oriental ...

Interactions Between Dune Activity and ... between dune characteristics and the invasive species ... the interaction between the dune and ...
Read more

sand dune |

Sand dune, sand dune: ... Geomorphic characteristics. ... the winds, and the interactions of these main elements.
Read more

Dune - Wikipedia, the free encyclopedia

In physical geography, a dune is a hill of sand built by either wind or water flow. Dunes occur in different shapes and sizes, formed by interaction with ...
Read more

Sand Dunes | Coastal Care

Dune building is helped along by the characteristic onshore coastal ... One way in which sand dunes are eroded is by the wind remobilizing sand and ...
Read more

Restoration and Management of Coastal Dune Vegetation

This publication discusses the features of coastal dunes, restoration of damaged dunes ... Several characteristics make American beachgrass suitable for ...
Read more

Coastal Dunes: Geomorphology | Learn Science at Scitable

The size and morphology of coastal dunes is dependent on the complex interaction ... (2012) Coastal Dunes: ... a characteristic U ...
Read more

Coastal dunes (Department of Environment and Heritage ...

Coastal dunes; Home; Topics; Coastal management; ... A characteristic of these plants is their ability to grow up through the sand and continually produce ...
Read more

Reformate fuel cell stack characteristics and system ...

REFORMATE FUEL CELL STACK CHARACTERISTICS AND SYSTEM INTERACTIONS David Joshua Friedman Researcher: Fuel Cell Vehicle Modeling Project,
Read more