What makes up the Hawaiian Emperor Seamount Range?
The Hawaiian Emperor’s Seamount Chain is a well-known example of a large chain of seamounts and islands created by hotspot volcanism. While the hot spot itself is stationary, the plate moves. So, as the plate moved over the hotspot, the string of islands that make up the Hawaiian Islands chain formed.
What are the Hawaiian Emperor’s chain of islands and seamounts?
The Hawaiian Ridge-Emperor Seamounts range stretches some 6,000 km from the “Big Island” of Hawaii to the Aleutian Trench off Alaska. The Hawaiian Islands themselves are only a very small part of the chain and are the youngest islands in the huge, mostly underwater mountain range of over 80 volcanoes.
What’s special about the Hawaiian Emperor’s Seamount Range, what’s going on inside the mantle?
The rapid southward movement of the Hawaiian plume, followed by a sharp slowdown, causes the Hawaiian-Emperor Seamount Range to turn sharply. The more coherent and rapid the motion deep in the mantle, the more acute its effects on the shape of the seamount chains above,” he said.
How many volcanoes make up the Hawaiian Ridge Emperor seamount chain?
The Hawaiian-Emperor Seamount Chain. The two sections, the Emperor and the Hawaiian strands, are separated by a large L-shaped bend…Hawaiian Archipelago.
|Last name||Mauna Loa|
|Last eruption||1984 (active)|
|Contact information||19°28′46.3″N 155°36′09.6″W|
|years of age)||700,000 to 1 million|
|Remarks||Earth’s largest subaerial volcano|
What is the largest volcano in the world?
Gradually rising more than 4 km (2.5 mi) above sea level, Hawaii’s Mauna Loa is the largest active volcano on our planet. Its submarine flanks descend to the sea floor for another 5 km (3 mi), and the sea floor is in turn depressed by the great mass of Mauna Loa for 8 km (5 mi).
Why is there a hotspot under Hawaii?
The Hawaiian Islands were literally created from many volcanoes – they are a trail of volcanic eruptions. Hotspot volcanism can occur in the middle of tectonic plates. This is different from traditional volcanism, which takes place at plate boundaries.
Why is the Emperor’s Seamount Hawaiian Range bent in the middle?
One explanation is an abrupt change in the motion of the Pacific tectonic plate, the opposite pattern indicates a southward drift of the mantle plume that has fed the range since its inception 80 million years ago. …
What is a seamount?
A seamount is an underwater mountain formed by volcanic activity. New estimates suggest that, taken together, seamounts cover about 28.8 million square kilometers of the Earth’s surface. This is larger than deserts, tundra or any other terrestrial global habitat on the planet.