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When scientists looked at the polarity of bands of rocks on either side of the mid ocean ridges what did they find?
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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.
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 is the significance of the patterns of offsets along mid-ocean ridges?
the matching patterns on either side of the mid-ocean ridge could be explained by new ocean crust forming at the ridge and spreading away from it as ocean crust forms it obtains the polarity of the earth's magnetic field at that time over time the strength of the earths magnetic field changes when new ocean crust forms at the center of the spreading it obtains a new kind of magnetic polarity over time a series of magnetic ''stripes'' are formed
What is a oceanic ridges?
a ridge in the ocean
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.
What is crossover in fingerprints?
When two ridges connect with no ending on either side.
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.
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 did the precision depth recorder help scientists discover?
one of the unexpected discoveries was the presence of underwater mountians. scientists located mid-ocean ridges, the longest mountain chains in the world.
What is a deformed rebar?
Deformed rebar has either indentations or ridges in a regular pattern on the bar surfae.
What happens when earth's plate move?
when the earths plates move we either have earthquakes, tsunamis, and we get ridges and trenches.
What is ridges in a sentence?
The ridges of the Everest are very dangerous. Ridges is the word used in the sentence.
What are Ridges in the cerebrum?
The ridges in cerebrum are called
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.
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.
