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Silica poor magma is generally low in viscosity, and is therefore more fluid. The lava can travel a great distance before solidifying, thus creating broad gentle slopes.
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What are volcanoes with gentle slopes and quiet eruptions?
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Why do silica-poor magmas produce broad volcanoes with gentle slopes?
Silica poor magma is generally low in viscosity, and is therefore more fluid. The lava can travel a great distance before solidifying, thus creating broad gentle slopes.
Why do silica -poor magmas produce broad volcanoes with gentle slopes?
Silica poor magma is generally low in viscosity, and is therefore more fluid. The lava can travel a great distance before solidifying, thus creating broad gentle slopes.
What slopes does a shield volcano have?
Shield volcanoes typically have gentle slopes with angles ranging from 2-10 degrees. These low-angle slopes are a result of the highly fluid lava flows produced by shield volcanoes, which travel long distances before solidifying. This gradual build-up of lava layers over time creates the characteristic broad, dome-like shape of shield volcanoes.
What are volcanoes with gentle slopes that cover large areas and occur in Hawaii called?
Volcanoes with gentle slopes that cover large areas and occur in Hawaii are called shield volcanoes. These volcanoes are characterized by their low-angle slope due to the fluid lava flows, which can extend over great distances. Examples include Mauna Loa and Mauna Kea in Hawaii.
Why do siluca poor magmas produce broad volcanoes eith gentle slopes?
Silica-poor magmas, such as basalt, have lower viscosity, allowing them to flow more easily and travel greater distances from the eruption site. This fluid nature results in the formation of broad, gently sloping volcanoes, known as shield volcanoes, as successive lava flows spread out over large areas. Additionally, the lower gas content in silica-poor magmas leads to less explosive eruptions, further contributing to the gentle slopes of these volcanoes.
Which process is most likely to produce a volcano with gentle slopes?
A volcano with gentle slopes is most likely produced by the process of basaltic lava flow, commonly associated with shield volcanoes. These volcanoes erupt low-viscosity lava that can travel long distances, allowing it to spread out and create broad, gently sloping sides. The eruptions are typically non-explosive, resulting in the gradual accumulation of layers of lava over time. Examples of such volcanoes include Mauna Loa and Kilauea in Hawaii.
Do shield volcanoes have a steep sloping cone made up of rocks and lava?
No. Shield volcanoes have gentle slopes composed almost entirely of cooled lava flows.
What is very broad volcanoes with gentle slopes form from basalt lava flows?
This is called a shield volcano and an example would be Hawaii.
What are the similarities and differences between the types of volcanoes?
Shield volcanoes have fluid basaltic flows that are lower in silicates, making the lava very fluid without a tendency to form pyroclastics. Composite Cone volcanoes contain the highest percentage of silica content making the magma thicker with the greatest tendency to form pyroclastics and are the most dangerous volcanoes.
What type of volcanoes are Broad gradual slopes?
Broad, gradual slopes are characteristic of shield volcanoes. These volcanoes are formed primarily by the eruption of low-viscosity basaltic lava that can flow over great distances, creating a wide, gently sloping profile. Examples of shield volcanoes include Mauna Loa and Mauna Kea in Hawaii. Their gentle slopes result from the relatively fluid nature of the lava, allowing it to spread out over large areas.
On topographic maps contour lines that are farther apart indicate .?
gentle slopes
