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Cosmic ray intensity at Earth's surface would be greater when Earth's magnetic field passed through a zero phase because magnetic shifting is minimal. Fossil evidence suggests that the periods of no protective magnetic field may have been as important in changing life forms as x-rays have been in the famous heredity studies of fruit flies.
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What is magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
Where is Earths magnetic reversals recorded?
Earth's magnetic reversals are recorded in rocks that contain magnetized minerals, such as iron-bearing minerals like magnetite. When these minerals solidify and align with Earth's magnetic field, they preserve a record of the magnetic field at that time. Scientists can study these rocks to determine the timing and duration of past magnetic reversals.
Which body in our solar system magnetic pole reversals?
the sun
What is a magnetic period?
A magnetic period is a specific duration of time during which the Earth's magnetic field undergoes reversals, where the magnetic North and South poles switch places. These reversals occur over thousands of years and are recorded in rocks and sediments as a series of stripes of alternating magnetic polarity.
How continental drift explains today's position of the continents.?
Magnetic Reversals
Magnetic striping is evidence of?
pole reversals seafloor spreading
What changes in cosmic ray intensity at the Earth's surface would you expect during the periods in which the Earth's magnetic field passed through a zero phase while undergoing pole reversals?
During periods of magnetic pole reversals, the Earth's magnetic field weakens, leading to decreased shielding of cosmic rays. This can result in an increase in cosmic ray intensity at the Earth's surface because fewer cosmic rays are being deflected away by the weaker magnetic field. As the field weakens and reverses, cosmic rays can penetrate deeper into the atmosphere, impacting climate and potentially affecting electronic systems.
What changes in cosmic ray intensity at earth's surface would you expect during periods in which earth's magnetic field passed through a zero phase while undergoing pole reversals?
Cosmic ray intensity at Earth's surface would be greater when Earth's magnetic field passed through a zero phase because magnetic shifting is minimal. Fossil evidence suggests that the periods of no protective magnetic field may have been as important in changing life forms as x-rays have been in the famous heredity studies of fruit flies.
What changes in cosmic ray intensity at earths surface would you expect during periods in which earths magnetic field passed through a zero phase while undergoing pole reversals?
Cosmic ray intensity at Earth's surface would be greater when Earth's magnetic field passed through a zero phase because magnetic shifting is minimal. Fossil evidence suggests that the periods of no protective magnetic field may have been as important in changing life forms as x-rays have been in the famous heredity studies of fruit flies.
What is magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
What Magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
What is magnetic striping evidence?
Magnetic reversals and sea floor spreading.
Magnetic Stripping is Evidence of?
pole reversals
What are earths alternating magnetic bands called?
Earth's alternating magnetic bands are called magnetic reversals or geomagnetic reversals. These reversals are periods in Earth's history where the magnetic field flips, with the north and south magnetic poles reversing positions. They can be detected in the rock record and provide valuable information about Earth's geological history.
Where is Earths magnetic reversals recorded?
Earth's magnetic reversals are recorded in rocks that contain magnetized minerals, such as iron-bearing minerals like magnetite. When these minerals solidify and align with Earth's magnetic field, they preserve a record of the magnetic field at that time. Scientists can study these rocks to determine the timing and duration of past magnetic reversals.
How would the history of reversals show itself on the ocean floor?
The history of reversals can be observed on the ocean floor through magnetic striping. When new oceanic crust is formed at mid-ocean ridges, magnetic minerals align with the Earth's magnetic field. Over time, as the Earth's magnetic field reverses, these minerals record the reversals in alternating magnetic stripes on the ocean floor. This provides evidence for the history of reversals.
What is used as evidence for sea floor spreading?
Magnetic reversals
