GEOLOGY

EARTH SCIENCE

GEOPHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The formation of the Hawaiian Islands is one example of
A
volcanoes forming over a hot spot
B
volcanoes forming along a plate boundary
C
the Ring of Fire
D
continental drift
Explanation: 

Detailed explanation-1: -In areas where the plates come together, sometimes volcanoes will form. Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the seafloor, at what is called a “hot spot.” The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate.

Detailed explanation-2: -The Hawaiian Islands were formed by a volcanic hot spot, an upwelling plume of magma, that creates new islands as the Pacific Plate moves over it.

Detailed explanation-3: -Volcanoes. Over its 85 million year history, the Hawaii hotspot has created at least 129 volcanoes, more than 123 of which are extinct volcanoes, seamounts, and atolls, four of which are active volcanoes, and two of which are dormant volcanoes.

Detailed explanation-4: -The Hawaiian Islands are all classified as shield volcanoes. Hawaiian shield volcanoes are formed by lava flowing on the ocean floor and building layer upon layer into great volcanoes. The hot spot theory explains that magma from the upper mantle rises through a channel into a magma chamber called a hot spot.

Detailed explanation-5: -The formation of the Hawaiian Islands is an example of hot spots. A hot spot is a concentration of heat in the mantle capable of producing magma, which rises to the Earth’s surface.

There is 1 question to complete.