0
When scientists looked at the polarity of bands of rocks on either side of the mid ocean ridges what did they find?
Scientists found that the polarity of the magnetic bands on either side of mid-ocean ridges was symmetrical and mirrored each other. This pattern indicated periods of magnetic reversals, where Earth's magnetic field flipped, creating alternating stripes of normal and reversed polarity. This discovery supported the theory of seafloor spreading, demonstrating that new oceanic crust is formed at the ridges and gradually moves away, carrying the magnetic information with it.
What else can I help you with?
Magnetic patterns on the ocean floor were puzzling because they?
revealed a symmetrical alternation of magnetic orientations on either side of mid-ocean ridges. This suggested that new oceanic crust was being formed at these ridges, with molten magma solidifying and locking in Earth's magnetic field at the time of its creation. By studying these patterns, scientists could map the history of seafloor spreading and plate tectonics.
How does magnetic stripes prove seafloor spreading?
Magnetic stripes on the seafloor provide evidence for seafloor spreading because they show alternating bands of normal and reversed polarity along mid-ocean ridges. These stripes form as new oceanic crust is created at mid-ocean ridges, with the Earth's magnetic field aligning minerals in the crust in the direction of the prevailing polarity at the time of its formation. By collecting and analyzing samples from the ocean floor, scientists can observe these magnetic patterns and confirm the process of seafloor spreading over geologic time scales.
Where can Alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of the?
These alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of mid-ocean ridges, where new oceanic crust is formed through seafloor spreading. This pattern is a result of the Earth's magnetic field periodically reversing over geological timescales, leaving a record of these reversals in the oceanic crust as it solidifies.
When new basalt forms along mid-ocean ridges it become magnetized?
accorsing to the earths magnetic field
When Studying the ocean floor scientists found rocks showing what?
Scientists found out about normal polarity and reverse polarity. Normal polarity is when the North Pole is south and the South Pole is north and reverse polarity is the opposite. The magnetic bands are different colors for normal and reverse polarity. This can cause sea-floor spreading.
Magnetic patterns on the ocean floor were puzzling because they?
revealed a symmetrical alternation of magnetic orientations on either side of mid-ocean ridges. This suggested that new oceanic crust was being formed at these ridges, with molten magma solidifying and locking in Earth's magnetic field at the time of its creation. By studying these patterns, scientists could map the history of seafloor spreading and plate tectonics.
How does oceanic crust record polarity?
Oceanic crust records polarity through the alignment and orientation of magnetic minerals within the rock as it solidifies near mid-ocean ridges. These minerals become magnetized parallel to Earth's magnetic field at the time of their formation and preserve this polarity orientation as the crust moves away from the ridge. By analyzing the magnetic stripes on the ocean floor, scientists can determine the history of magnetic reversals and the movement of tectonic plates.
How does magnetic stripes prove seafloor spreading?
Magnetic stripes on the seafloor provide evidence for seafloor spreading because they show alternating bands of normal and reversed polarity along mid-ocean ridges. These stripes form as new oceanic crust is created at mid-ocean ridges, with the Earth's magnetic field aligning minerals in the crust in the direction of the prevailing polarity at the time of its formation. By collecting and analyzing samples from the ocean floor, scientists can observe these magnetic patterns and confirm the process of seafloor spreading over geologic time scales.
How do magnetic stripes show the history of earths magnitic field?
Magnetic stripes on the ocean floor are formed as magma from the mantle rises at mid-ocean ridges and solidifies into rock. The Earth's magnetic field periodically reverses its polarity, causing magnetic minerals in the cooling rock to align with the prevailing magnetic field. These alternating magnetic orientations create stripes of normal and reversed polarity that are preserved in the oceanic crust as it spreads away from the ridges. By studying these magnetic stripes, scientists can reconstruct the history of the Earth's magnetic field reversals and the seafloor spreading process.
Where can Alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of the?
These alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of mid-ocean ridges, where new oceanic crust is formed through seafloor spreading. This pattern is a result of the Earth's magnetic field periodically reversing over geological timescales, leaving a record of these reversals in the oceanic crust as it solidifies.
When new basalt forms along mid-ocean ridges it become magnetized?
accorsing to the earths magnetic field
What pattern occurs in the bands of color on either side of ocean ridges?
The bands of color on either side of ocean ridges represent magnetic striping, which occurs due to the periodic reversal of Earth's magnetic field. As magma rises and solidifies at the ridge, iron-rich minerals align themselves with the current magnetic field, creating symmetrical patterns of magnetic polarity on either side of the ridge. These patterns serve as a record of seafloor spreading, indicating the age of the oceanic crust, with younger rock closest to the ridge and older rock further away.
When did scientists first discover the mid-Atlantic ridges?
The ridge was discovered during the expedition of HMS Challenger in 1872. A team of scientists on board, led by Charles Wyville Thompson.
What motion of the sea floor is responsible for the formation of the mid Atlantic ridges rift valley?
According to scientists, the process associated with seafloor spreading is responsible for the formation of the mid Atlantic ridges rift valley.
How do magnetic signatures support the idea that continents move?
Scientists indicated that the seafloor was spreading, so the poles "reverse"
When Studying the ocean floor scientists found rocks showing what?
Scientists found out about normal polarity and reverse polarity. Normal polarity is when the North Pole is south and the South Pole is north and reverse polarity is the opposite. The magnetic bands are different colors for normal and reverse polarity. This can cause sea-floor spreading.
What are jagged ridges that form on mountains called?
Jagged ridges that form on mountains are called "knife-edge ridges" or simply "knife ridges." These ridges are narrow, sharp, and often dangerous to traverse due to their steep drop-offs on either side. They require expert mountaineering skills to navigate safely.
