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Identify how magnetic symmetry can be used as evidence of sea floor spreading?
Wiki User
∙ 12y ago
As the sea floor spreads the magnetic orientation in the rocks as they cooled is preserved. As the earth's magnetic field changes then a distinct pattern is imprinted in the rocks. If sea floor spreading is true then this unique pattern should be the same on both sides from the spreading point. Measurements of sea bottom rocks verify this symmetry is true. :)
Wiki User
∙ 12y ago
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What is the symmetry for a earth worm?
The symmetry of an earthworm is bilateral symmetry, which means only one line of symmetry
Are arthropoda bilateral?
Yes. Most phyla evidence bilateral symmetry including flatworms, earthworms, many molluscs, and chordates including fish and mammals. Arthropoda, including insects, are bilaterally symmetric.
Why is symmetry important?
Symmetry is important as it can test whether the student is alert
What are lower case letters with lines of symmetry?
This is different in different typefaces (fonts) but in arial: o i l s v w x z all have symmetry s and z have point symmetry the others have at least one line of symmetry.
Do millipedes have radial or bilateral symmetry?
Yes. Millipedes, like all arthropods, have bilateral symmetry. Bilateral symmetry means something has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.
Body Symmetry of animals?
How can you identify the body symmetry of an animal
What is used as evidence for sea-floor spreading-?
The rocks on either side of a mid-ocean ridge record the direction of the Earth's magnetic field at the time they were formed, and form a pattern of 'magnetic stripes' on either side of the ridge which are symmetrical. It is also now possible to measure ocean widths with sufficient accuracy to show yearly changes.
How magneteism is used to support the theory of seafloor spreading?
During the Second World War, linear bands of positive and negative magnetic anomolies were found in the ocean floor, stretching for hundreds of miles, with an almost perfect symmetry either side of mid-ocean ridges. It was realised that these anomalies were evidence of periodic reversals of the earth's magnetic field. Molten basalt had been magnetised in the direction of the field and then cooled to 'fossilise' that direction. Each time the earth's magnetic field reversed, a stripe was added to the 'bar-code'. By dating onshore lava flows where magnetic reversals had occurred, a timescale of magnetic reversals was built up. It then became clear that, in the undersea anomalies, the youngest rocks were near the ridge, while the oldest were farther away and nearest the continents. Either side of the ridge, stripes of exactly the same age could be matched with each other. There was already evidence of continental drift, but this new evidence helped to explain how the earth's crust is moving and how the sea floor is spreading.
What is magnetic symmetry?
Something that goes through the Atlantic ocean.
Does body symmetry affect athletic ability?
There is some evidence that body symmetry has an effect on atheletic ability.
Identify how magnetic symmetry can be used as evidence of sea-floor spreading?
On each side of the mid-ocean ridge is a mirror of the striped pattern on the other side. When drawn, these patterns show alternating bands of normal and reverse polarity that match the geomagnetic reversal time scale, scientists can assign ages to the sea-floor rocks. The youngest rocks were at the center, and the older rocks father away. The ages of the sea floor rocks are symmetrical. The only place on the ocean-floor where new rocks are formed are at the rift in mid-ocean ridge. hope this helps :)
How can you identify the symmetry of an animal?
By cutting the body of the animal(dead) or by cutting planes of the required body.
How can you identify the body symmetry of an animal?
By cutting the body of the animal(dead) or by cutting planes of the required body.
How can rocks tell how the polarity of the earth has changed?
During the Second World War, linear bands of positive and negative magnetic anomolies were found in the ocean floor, stretching for hundreds of miles, with an almost perfect symmetry either side of mid-ocean ridges. It was realised that these anomalies were evidence of periodic reversals of the earth's magnetic field. Molten basalt had been magnetised in the direction of the field and then cooled to 'fossilise' that direction. Each time the earth's magnetic field reversed, a stripe was added in the opposite direction.
How magnetic symmetry can be used as evidence of sea-flooring spreading?
On each side of the mid-ocean ridge is a mirror of the striped pattern on the other side. When drawn, these patterns show alternating bands of normal and reverse polarity that match the geomagnetic reversal time scale, scientists can assign ages to the sea-floor rocks. The youngest rocks were at the center, and the older rocks father away. The ages of the sea floor rocks are symmetrical. The only place on the ocean-floor where new rocks are formed are at the rift in mid-ocean ridge. hope this helps :)
What are two ways you could identify an animal as an echinoderm?
Two ways you could identify an animal as an echinoderm would include five part radial symmetry and tube feet. Most of the animals also have skin that is spiny.
What is a sentence with symmetry in it?
It in symmetry with sentence a is what? What is a sentence with symmetry in it? This sentence with symmetry is symmetry with sentence this.
