There are numerous prcesses at the MCGE that create the features there.
Long shore drift the process responsible for carrying the sediment sand onto the beach.
58% of the wind at Muriwai beach blows at a south westerley direction, which sets up wave trains that approach the shore at an oblique angle. These wave trains carry tinonmagnatite or sediment which was transported to Muriwai from Fluvial activty at Mt Ruapehu and Taranaki. This sediment is deposited onto the beach through the swash from a SW direction. Backwash receeds straight (Westward) due to gravity. Thus setting up a zig-zag pattern of Swash and Backwash up the beach. Sediment carried in the Swash and Backash moves in a northerly direction towards the South Kaipara head.
There are many processes that occur and create the Muriwai Coastal Geographic Environment. There are also various features that are associated with these processes, that consequently present us with the beaches as we know them. One natural process that occurs at Muriwai Beach is Longshore Drift.
Longshore Drift transports sediment northward on Muriwai Beach. Longshore Drift is responsible for the supply of titanmagnetite. It is originally washed into the Tasman Sea by rivers originating from Mt Taranaki and the central volcanoes. Longshore Drift transports it northwards with the prevailing winds that blow SW 58% of the time. The wind creates wave trains that approach the from in an oblique angle. The sediment moves up on to the beach through the swash and backwash process, in a SW direction, and then proceeds perpendicular backwards due to gravity. The sediment carried in this process moves in a northerly direction towards the South Kaipara Heads. The feature that is created by the longshore drift is the beach. The black sediment is deposited on to the shore resulting in Muriwai Beach.
The process of Longshore Drift happens in the MCGE. Firstly, the wind blows from south westerly direction 58% of the time at Muriwai. The wind then sets up wave trains that approach the beach from an oblique angle. Swash moves up onto the beach from a south westerly direction. Backwash receeds straight due to gravity, setting up a zig zag pattern of swash & backwash up the beach. However, sediment is carried in the swash & backwash that moves in a northerly direction towards South Kaipara Head. The feature from this is the beach because its black from the sediment of (iron sand) titanmagnetite.
The MCGE includes Muriwai Beach and the northern part of Maori Bay and is found on the Tasman sea coast at the northern end of the Waitakere ranges 30km west of Auckland city. Muriwai Beach is a long exposed strip of black sand 50km in length stretching northward south of Muriwai Beach and is a small bay of approximately 500m.
One of the processes that happen at muriwai beach is the aeolian process. this is also called the wind process. when the sediment is dry then the wind process will begin, the wind will pick up the sediment, (when sediment is dry it is lighter) and carry it to the sand dunes.
6 comments:
There are numerous prcesses at the MCGE that create the features there.
Long shore drift the process responsible for carrying the sediment sand onto the beach.
58% of the wind at Muriwai beach blows at a south westerley direction, which sets up wave trains that approach the shore at an oblique angle. These wave trains carry tinonmagnatite or sediment which was transported to Muriwai from Fluvial activty at Mt Ruapehu and Taranaki. This sediment is deposited onto the beach through the swash from a SW direction. Backwash receeds straight (Westward) due to gravity. Thus setting up a zig-zag pattern of Swash and Backwash up the beach. Sediment carried in the Swash and Backash moves in a northerly direction towards the South Kaipara head.
There are many processes that occur and create the Muriwai Coastal Geographic Environment. There are also various features that are associated with these processes, that consequently present us with the beaches as we know them. One natural process that occurs at Muriwai Beach is Longshore Drift.
Longshore Drift transports sediment northward on Muriwai Beach. Longshore Drift is responsible for the supply of titanmagnetite. It is originally washed into the Tasman Sea by rivers originating from Mt Taranaki and the central volcanoes. Longshore Drift transports it northwards with the prevailing winds that blow SW 58% of the time. The wind creates wave trains that approach the from in an oblique angle. The sediment moves up on to the beach through the swash and backwash process, in a SW direction, and then proceeds perpendicular backwards due to gravity. The sediment carried in this process moves in a northerly direction towards the South Kaipara Heads. The feature that is created by the longshore drift is the beach. The black sediment is deposited on to the shore resulting in Muriwai Beach.
The process of Longshore Drift happens in the MCGE. Firstly, the wind blows from south westerly direction 58% of the time at Muriwai. The wind then sets up wave trains that approach the beach from an oblique angle. Swash moves up onto the beach from a south westerly direction. Backwash receeds straight due to gravity, setting up a zig zag pattern of swash & backwash up the beach. However, sediment is carried in the swash & backwash that moves in a northerly direction towards South Kaipara Head. The feature from this is the beach because its black from the sediment of (iron sand) titanmagnetite.
The MCGE includes Muriwai Beach and the northern part of Maori Bay and is found on the Tasman sea coast at the northern end of the Waitakere ranges 30km west of Auckland city. Muriwai Beach is a long exposed strip of black sand 50km in length stretching northward south of Muriwai Beach and is a small bay of approximately 500m.
One of the processes that happen at muriwai beach is the aeolian process. this is also called the wind process. when the sediment is dry then the wind process will begin, the wind will pick up the sediment, (when sediment is dry it is lighter) and carry it to the sand dunes.
Post a Comment