Table of Contents
- 1 Is heat from the interior of the earth is an energy source for plate motion?
- 2 What contributed to the original heat quizlet?
- 3 What process explains the formation of the Hawaiian islands in the middle of the Pacific Ocean quizlet?
- 4 How can internal heat affect Earth’s internal processes?
- 5 What happens when tectonic plates collide?
- 6 What were sources of Earth’s original internal heat select all that apply quizlet?
- 7 What caused the bend in the Hawaiian Island Emperor seamount chain and when did the bend form quizlet?
Is heat from the interior of the earth is an energy source for plate motion?
Heat from the interior of the earth is an energy source for plate motion.
What contributed to the original heat quizlet?
Plate motion would eventually stop as the earth cooled. What contributed to the original heat? Why do scientists believe that heating from radioactive decay was greater in the early earth than it is today? There were more radioactive elements, so as a result, there was greater decay and heating.
What two principal sources cause the earth’s internal heat?
The flow of heat from Earth’s interior to the surface is estimated at 47±2 terawatts (TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of Earth.
What process explains the formation of the Hawaiian islands in the middle of the Pacific Ocean quizlet?
How would you explain the formation of the Hawaiian Islands in the middle of the Pacific Plate? The Hawaiian Islands are the tops of volcanic mountains formed by hot spots under the Pacific plate; as the plate moves, the hot spots create new islands.
How can internal heat affect Earth’s internal processes?
It’s this heat that keeps Earth from cooling off completely. Many of the rocks in Earth’s crust and interior undergo this process of radioactive decay . This process produces subatomic particles that zip away, and later collide with surrounding material inside the Earth.
How significant is the earth’s internal heat?
The Earth’s internal heat source provides the energy for our dynamic planet, supplying it with the driving force for plate-tectonic motion, and for on-going catastrophic events such as earthquakes and volcanic eruptions.
What happens when tectonic plates collide?
If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary.
What were sources of Earth’s original internal heat select all that apply quizlet?
The sources of heat inside the Earth are leftover heat from Earth’s formation, and Radioactive decay.
How do the Hawaiian Islands support tectonic plate theory?
The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate. While the hot spot itself is fixed, the plate is moving. So, as the plate moved over the hot spot, the string of islands that make up the Hawaiian Island chain were formed.
What caused the bend in the Hawaiian Island Emperor seamount chain and when did the bend form quizlet?
What caused the bend in the Hawaiian Island-Emperor Seamount chain, and when did the bend form? The Pacific Plate had been moving northward over the hotspot, then changed to moving northwestward about 47 million years ago. Since Volcano A is erupting, you can assume that Volcano A is currently over an oceanic hotspot.