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What is the viscosity of lava flow from a cinder cone volcano?
The viscosity of lava flow from a cinder cone volcano is typically high, leading to slower-moving lava flows. This is due to the higher silica content of the lava, which increases its viscosity. As a result, cinder cone volcanoes often produce short, thick flows that can cool and solidify quickly.
What is mount rangitoto's lava type?
Mount Rangitoto, located in New Zealand's Hauraki Gulf, primarily features basaltic lava, which is characteristic of shield volcanoes. This type of lava is low in viscosity, allowing it to flow easily and create broad, gently sloping landforms. The eruption style at Rangitoto is predominantly effusive, resulting in the formation of extensive lava fields and the unique volcanic landscape we see today.
Is Rangitoto island still active?
Is Rangitoto active?
What are the surface features on rangitoto?
Rangitoto is an cone shaped island formed by a volcano in the Waitemata Harbour in Auckland, North Island New Zealand. It is the most recent volcano in the Auckland volcano field, which consists of over 50 volcanoes, and was formed 600yrs ago. As it is a recent volcano the surface consists of black lava slowly being pioneered by bush. The native tree, the Tutu (Coriaria arborea) was the the first major plant to establish itself on Rangitoto as its long roots were able to reach the water reservoirs beneath the lava.
Why basalt magma caused Rangitoto Island to have a shield shape?
Basalt magma is low in viscosity, which allows it to flow more easily and spread out over a large area. As the magma rises to the surface and erupts, it creates layers of lava that build up and spread outwards, forming a broad shield shape characteristic of shield volcanoes like Rangitoto Island. The gentle slopes of the shield volcano are a result of the basaltic lava flowing long distances before solidifying.
What type of volcano is rangitoto?
It is a shield volcano
What type of volcano is Rangitoto Island?
It is a shield volcano.
Which is the youngest volcano in Auckland?
the youngest volcano is Rangitoto
What is the name of an extinct volcano in NZ?
Rangitoto
Why is rangitoto a shield volcano?
because it has a dome shape
What volcano-shaped island can be seen from Auckland?
Rangitoto Island
Which volcano-shaped island can be seen from parts of Auckland?
Rangitoto Island
What type of volcano is Rangitoto in Auckland New Zealand?
Basaltic, like Hawaii
Which volcano-shaped island can be seen from many parts of Auckland?
Rangitoto Island
How was New Zealands Rangitoto island formed?
Rangitoto was formed in a Volcanic Eruption about 600 years ago. It is the most recent and largest volcano to form in the Auckland volcanic field.
Where is the closest volcano to Auckland?
The closest volcano to Auckland is Rangitoto Island, located about 8 kilometers (5 miles) to the northeast of the city. Rangitoto is a dormant shield volcano that last erupted approximately 600 years ago. It's a popular destination for hiking and offers panoramic views of Auckland and the surrounding Hauraki Gulf. The island is easily accessible by ferry from downtown Auckland.
Is pyroclastic material likely to form from low-viscosity or high-viscosity lava?
low viscosity lava due to the violent eruption of the volcano
