0
The fact that similar fossils are found on both sides of the ocean is evidence of . global positioning oceanic drifts continental drift magnetic reversal?
Wiki User
∙ 7y ago
"continental drift"
Wiki User
∙ 7y ago
Add your answer:
Earn +20 pts
Bands of magnetic material in the sea floor that have opposite poles or exhibit magnetic reversal can provide evidence for sea floor spreading true or false?
True. Bands of magnetic material in the sea floor that have opposite poles or exhibit magnetic reversal provide evidence for sea floor spreading. This is because as new oceanic crust forms at mid-ocean ridges, Earth's magnetic field periodically reverses, creating magnetic stripes on the ocean floor that align with the direction of the magnetic field at that time.
Why the seafloor exhibits magnetic reversal but the continents do not?
The seafloor exhibits magnetic reversal due to the alignment of magnetic minerals in the lava as it solidifies at mid-ocean ridges. As the Earth's magnetic field flips over time, this record is preserved in the oceanic crust. In contrast, continental rocks are less likely to preserve such a record because they are mostly composed of different types of minerals that do not align with the Earth's magnetic field in the same way.
What happens to the magnetic orientation of rocks as the poles reverse?
During a magnetic pole reversal, the magnetic orientation of rocks changes to align with the new orientation of the Earth's magnetic field. This means that the magnetization of rocks will also reverse during a geomagnetic field reversal event.
What is it called when the earths poles switch positions over time?
The phenomenon you're referring to is known as geomagnetic reversal or magnetic pole reversal. This occurs when the Earth's magnetic field flips its polarity, causing the magnetic north and south poles to switch positions.
Can you use magnetic field reversal data to reconstruct Pangaea?
Yes, magnetic field reversal data can be used to study the movement of tectonic plates and assist in reconstructing the positions of continents over time, including Pangaea. By analyzing the magnetic signature of oceanic crust as it records changes in Earth's magnetic field, researchers can determine the past positions of landmasses and understand how they have shifted and separated. This data, along with other geological evidence, helps in creating reconstructions of ancient supercontinents like Pangaea.
What was the theory that was shown to be correct by age evidence and magnetic clues?
The theory that was confirmed by age evidence and magnetic clues is the theory of plate tectonics. Evidence such as the ages of rocks on either side of ocean ridges and the alignment of magnetic minerals in oceanic crust support the idea that Earth's lithosphere is broken into rigid plates that move and interact with each other.
What evidence is there for the reversal of the magnetic field of the earth?
Evidence for the reversal of Earth's magnetic field is found in magnetic minerals in rocks that preserve the direction of the field when they were formed. These minerals show alternating patterns of magnetization that suggest the field has reversed multiple times throughout Earth's history. Additionally, studies of sediment cores and oceanic crust have also provided evidence of past magnetic field reversals.
Which aspect of magnetic reversal provides evidence of continental drift?
The alignment of magnetic minerals in rocks showing a pattern of alternating polarity stripes provides evidence for continental drift. This pattern matches the age of the oceanic crust, suggesting that continents have indeed moved over time.
True or false Bands of magnetic material in the sea floor that have opposite poles or exhibit magnetic reversal can provide evidence for sea floor spreading.?
true
Volcanic rock shows that some layers have magnetic fields that are aligned opposite to Earths This evidence BEST fits which hypothesis?
The evidence of volcanic rock layers with opposite magnetic fields to Earth's aligns with the hypothesis of geomagnetic reversal. This suggests that Earth's magnetic field has flipped polarity multiple times throughout its history.
What is the evidence of pole reversal?
Evidence of pole reversal can be found in the Earth's magnetic record preserved in rocks. When volcanic rocks are formed, the minerals in them align with the Earth's magnetic field. By studying these rocks, scientists can track changes in the orientation of the magnetic field over time, showing instances of pole reversal where the North and South magnetic poles switch places. Additionally, evidence of pole reversal can also be found in magnetic anomalies recorded in oceanic crust.
What is a sentence for magnetic reversal?
The sun goes through a magnetic reversal twice in every sunspot cycle.
What is a good sentence for magnetic reversal?
A magnetic reversal is when the Earth's magnetic field changes direction, which has happened multiple times in the planet's history.
Bands of magnetic material in the sea floor that have opposite poles or exhibit magnetic reversal can provide evidence for sea floor spreading true or false?
True. Bands of magnetic material in the sea floor that have opposite poles or exhibit magnetic reversal provide evidence for sea floor spreading. This is because as new oceanic crust forms at mid-ocean ridges, Earth's magnetic field periodically reverses, creating magnetic stripes on the ocean floor that align with the direction of the magnetic field at that time.
What is it called when rocks are different because Earths magnetic poles change places?
Magnetic Reversal. Several magnetic reversals have occurred over geologic time.
Why the seafloor exhibits magnetic reversal but the continents do not?
The seafloor exhibits magnetic reversal due to the alignment of magnetic minerals in the lava as it solidifies at mid-ocean ridges. As the Earth's magnetic field flips over time, this record is preserved in the oceanic crust. In contrast, continental rocks are less likely to preserve such a record because they are mostly composed of different types of minerals that do not align with the Earth's magnetic field in the same way.
What is the process by which Earth's magnetic poles change places?
The process by which Earth's magnetic poles change places is known as geomagnetic reversal. This occurs when the Earth's magnetic field weakens, causing the north and south magnetic poles to switch positions. This reversal can take thousands of years to complete.
