Take, for example, the geologically oldest—and now inactive—island of Kauai, which formed roughly five million years ago. C) A mantle plume. 3 Answers. As the plate moves away, the volcano stops erupting and a new one is formed in its place. Each island or submerged seamount in the chain is successively older toward the northwest. c A mantle plume or hot … The Hawaiian Islands are believed to be formed from one such 'hot spot'.
This would harden over a period of time and would usually result to groups of islands like Hawaii.
An Oceanic-oceanic Plate Collision. B) Seafloor spreading. Starting from northwest and going down to the southeast, each volcano is progressively younger. A) a rising plume of magma from the mantle. As the plate moves away, the volcano stops erupting and a new one is formed in its place. The hawaiian islands were formed as a result of _____ Jump to Last Post 1-5 of 5 discussions (5 posts) 51. asabidafina posted 9 years ago.
The Hawaiian Islands are formed by volcanic activity, despite the nearest plate margin being 3,200 km away. A controversial alternative theory holds that an asteroid impact triggered the volcanism that created the islands. But what do I know - my strong suit is electronics! ANSWER OPTIONS: A) Ocean-ocean convergent boundary . The Hawaiian islands were formed over many milenia by volcanoes, so answers A and C are incorrect. That island was Oahu. True.
The Hawaiian island chain will subduct in approximately 40 million years (false- it will take MUCH LONGER) The crust is thickest under mountains and thinnest under the oceans. Anonymous. 9 years ago. asked Sep 20, 2016 in Environmental & Atmospheric Sciences by Zecan. The island of Hawaii, now atop the hot spot, formed 4.5 million years after Kauai. 61. The Hawaiian islands were formed over many milenia by volcanoes, so answers A and C are incorrect. The ocean floor is created along midocean ridges. The Hawaiian Islands were formed over a hot spot. Today the big island of Hawaii sits over the same hot spot that produced the other islands. This movement created more islands, much like the Hawaiian islands were created by moving over a lava flow, but in a unique arc shape. With time, the volcanoes keep drifting westward and getting older relative to the one active volcano that is over the hot spot. It began to break the surface of the Pacific Ocean about 4.6 million years ago. LOL Hope this helps. The Hawaiian Emperor seamount chain is a well-known example of a large seamount and island chain created by hot-spot volcanism. In this lesson, you learned that the Hawaiian Islands were formed from volcanic rock. The consistent eruption of lava fed by the hot spot resulted in volcano formations that rose above sea level to form the islands of Hawaii.
I'm not sure what your teacher would want, since I haven't studied the terminology, however I would interpret a "magma plume" to be the solid discharge from a volcano, so I would consider answer D to be correct. The Hawaiian Islands were formed as a result of _____?
The Hawaiian Islands were formed as a result of a. a rising plume of magma from the mantle b. an oceanic-oceanic plate collision c. a continental-oceanic plate collision d. … There is a really good video about island genesis at the Khan Academy, Hawaiian islands formation. C) an oceanic-oceanic plate collision. The Hawaiian Islands are believed to be formed from one such 'hot spot'. As the Pacific plate moved westward another island formed. HINT: The Hawaiian Islands are volcanic islands arranged in a straight line. The oldest one in the northwest of the island chain was formed about 80 million years ago. The Hawaiian Islands were formed due to the presence of a hotspot below the lithosphere.
the Hawaiian island chain was/is being formed as the pacific plate move across the mantle plume, as islands get farther way from this mantle plume … I'm not sure what your teacher would want, since I haven't studied the terminology, however I would interpret a "magma plume" to be the solid discharge from a volcano, so I would consider answer D to be correct. Some geologists have suggested that a 'hot spot' in the mantle, which remains stationary as the Pacific Plate moves over it, explains the existence of the island chain. Answer Save.
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