0
What causes the magnetic striping noticed about the mid ocean ridges?
Wiki User
∙ 8y ago
These "stripes" formed the pattern known as magnetic striping. ... They hypothesized that the magnetic striping was produced from the generation of magma at mid-ocean ridges during alternating periods of normal and reversed magnetism by the magnetic reversals of the Earth's magnetic field.
Waldo Mayer
Add your answer:
Earn +20 pts
What are pole reversals?
The direction of the Earth's magnetic field has reversed several times during its history. This causes the North magnetic pole to become a South magnetic pole and vice versa. We know this because of the direction of magnetism in the rocks on the ocean floor, which alternates in 'stripes' on either side of the mid-ocean ridges.
Marine magnetic anomaly belts run parallel to?
Mid-Ocean Ridges
How rocks that form at mid ocean ridge become magnetized?
Rocks on the sea floor deposited by the mid ocean ridges often contain magnetite. As the magnetite cools and crystallizes, they align with the earth's magnetic poles with the north side of the crystal pointing north and the south side pointing south The earth's magnetic poles(and magnetic field) are caused by actions within the the earth's liquid core. The liquid outer core moving around the solid inner core acts like an electromagnet which creates both the magnetic poles and magnetic field. As the mid ocean ridges deposit new sea floor containing magnetite, the earth often switches polarity. The rocks on the sea floor align themselves to the poles at the time they form. So, the mid ocean ridges create new seafloor, pushing the older seafloor away. And then when the polarity switches the magnetite crystals in new seafloor align themselves in a direction opposite to the ones deposited before the switch. This causes parallel bands of magnetic rock forming on either side of the mid-oceanic ridges.
What cause ocean ridges to form?
earths crust causes it
How are magnetic patterns in sea floor rock evidence of seafloor spreading?
Magnetic alignment of rocks, in alternating strips that run parallel to ridges, indicates reversals in Earth's magnetic field and provides further evidence of seafloor spreading.
What concepts did magnetic striping reveal to scientists about the rock on either side of a spreading ridge?
The pattern of magnetic striping on one side of the ridge was a mirror image of the striping on the other side of the ridge, indicating that the plates were moving equally in opposite directions, giving a plausible explanation for continental drift theory. Before this discovery, no evidence of a mechanism for plate tectonics existed. It was obvious after this discovery, that new crust was being created at the ridges.
How do earths magnetic pole reversals provide evidence for plate tectonics?
Magnetic stripes can be seen as you move away from ocean ridges.
What causes Magnetic stripes on the seafloor are caused by?
These "stripes" formed the pattern known as magnetic striping. ... They hypothesized that the magnetic striping was produced from the generation of magma at mid-ocean ridges during alternating periods of normal and reversed magnetism by the magnetic reversals of the Earth's magnetic field.
The seafloor magnetic pattern is best described as?
parallel to and symmetric about ocean ridges
What are pole reversals?
The direction of the Earth's magnetic field has reversed several times during its history. This causes the North magnetic pole to become a South magnetic pole and vice versa. We know this because of the direction of magnetism in the rocks on the ocean floor, which alternates in 'stripes' on either side of the mid-ocean ridges.
Earth's what field are recorded by rocks in strips parallel to ridges?
earth's magnetic feild
Marine magnetic anomaly belts run parallel to?
Mid-Ocean Ridges
What causes fingernail ridges?
Most ridges on the fingernails are caused by normal aging and are common. Some ridges though might be an indication of an underlying health problem especially if there is a change in color.
When new basalt form along mid-ocean ridges it becomes magnetized?
accorsing to the earths magnetic field
How do earths magnetic pole reversals provide evidence for tectonics?
rocks get older as you move away from ocean ridges
How does rock that form at a mid-ocean ridge become magnetized?
Rocks on the sea floor deposited by the mid ocean ridges often contain magnetite. As the magnetite cools and crystallizes, they align with the earth's magnetic poles with the north side of the crystal pointing north and the south side pointing south The earth's magnetic poles(and magnetic field) are caused by actions within the the earth's liquid core. The liquid outer core moving around the solid inner core acts like an electromagnet which creates both the magnetic poles and magnetic field. As the mid ocean ridges deposit new sea floor containing magnetite, the earth often switches polarity. The rocks on the sea floor align themselves to the poles at the time they form. So, the mid ocean ridges create new seafloor, pushing the older seafloor away. And then when the polarity switches the magnetite crystals in new seafloor align themselves in a direction opposite to the ones deposited before the switch. This causes parallel bands of magnetic rock forming on either side of the mid-oceanic ridges.
How rocks that form at mid ocean ridge become magnetized?
Rocks on the sea floor deposited by the mid ocean ridges often contain magnetite. As the magnetite cools and crystallizes, they align with the earth's magnetic poles with the north side of the crystal pointing north and the south side pointing south The earth's magnetic poles(and magnetic field) are caused by actions within the the earth's liquid core. The liquid outer core moving around the solid inner core acts like an electromagnet which creates both the magnetic poles and magnetic field. As the mid ocean ridges deposit new sea floor containing magnetite, the earth often switches polarity. The rocks on the sea floor align themselves to the poles at the time they form. So, the mid ocean ridges create new seafloor, pushing the older seafloor away. And then when the polarity switches the magnetite crystals in new seafloor align themselves in a direction opposite to the ones deposited before the switch. This causes parallel bands of magnetic rock forming on either side of the mid-oceanic ridges.
