Please describe the formation of the Hawaiin Islands. You know with the underwater volcanoes and the hot spot thing. THNX
2007-01-04 10:05:53 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Hot spot is a "hole" in the earth's crust thru which lava flows. Builds up and up and up until it is a mountain/ island in the sea. The earth's crust keeps pushing on ---the hardened lava/mountain gets pushed along away from the hot spot, which keeps on spewing lava and making new mountains/islands. Eventually, bits of the first islands erode away, causing separations between them and decreasing the size of the mountains. Becomes a chain of islands formed by volcanoes.
You're welcome.
2007-01-04 10:11:51 · answer #1 · answered by Rani 4 · 0⤊ 0⤋
The Hawaiian Archipelago was formed by a hot spot. This hot spot is fueled by a deep mantle plume of hot molten magma. The plume itself is basically stationary - it doesn't move. However, the Pacific plate that the islands are on is moving, so over time the plate moves far enough away that the magma will create a new pathway to the surface, making a new volcano. Over time, the lava in this undersea volcano builds up and over thousands of years may come to the surface.
2007-01-04 10:13:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Basically there is only one hot spot and the plate moves over it. As new land moves over the hotspot, new volcanos form creating new islands, as the plate moves on it drags the old volcanos/islands with it allowing the hotspot to form new volcanos. That's why the islands are arranged in a chain.
2007-01-04 11:14:14 · answer #3 · answered by Roman Soldier 5 · 0⤊ 0⤋
Hot plume of lava like the guy before mention. We also have on here in the mainland. It is called Yellowstone Park Volcano.
2007-01-04 10:39:16 · answer #4 · answered by Texan23 2 · 0⤊ 0⤋
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2016-11-26 19:25:10 · answer #5 · answered by ? 4 · 0⤊ 0⤋