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Gravity
Andrew Macdonald
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How do earths magnetic pole reversals provide evidence for plate tectonics?
Magnetic stripes can be seen as you move away from ocean ridges.
What type of faulting characterizes mid-ocean ridges and why?
The type of faulting that characterizes mid-ocean ridges is a transform fault. This type of faulting occurs because transform fault ridges stay in the same fixed location, thus the new ocean sea floor being created at the ridges is pushed away from the ridge.
How did Harry Hess discover seafloor spreading?
Harry hess' hypothesis was hot/less dense material rises up the Earth's crust toward the mid-ocean ridges. When the seafloor breaks apart, magma is forced upward and through the cracks. It cools, and becomes a new seafloor. When it moves away from the mid-ocean ridge, it becomes denser and sinks. This helps form ridges.
Which type of boundary do mid-ocean ridges occur?
divergent
Divergent plates move from each other This causes to form as well as mid-ocean ridges?
away, rifts
What draws dense rock away from mid-ocean ridges?
Gravity
How do earths magnetic pole reversals provide evidence for plate tectonics?
Magnetic stripes can be seen as you move away from ocean ridges.
Why is the ocean floor lower as you move away from the mid-ocan ridges?
The mid-ocean ridges which wrap around the ocean floor like the seam of a baseball, are high topographic features-but as you go away from either side of a ridge, the ocean floor subsides as it cools.
What type of faulting characterizes mid-ocean ridges and why?
The type of faulting that characterizes mid-ocean ridges is a transform fault. This type of faulting occurs because transform fault ridges stay in the same fixed location, thus the new ocean sea floor being created at the ridges is pushed away from the ridge.
What happens the age of rock with distance from the mid ocean ridges?
Sorry for this late response,but basically, as the plates move farther away from the mid-ocean ridges, the older it gets..! Hope this helps! ^^
Do Ocean sediments become younger or older away from midocean ridges?
Older, as it moves away from the mid-ocean ridge the sediment gets thicker and older
Is mid-ocean ridge is how the direction of sea-floor spreading?
It spreads away form the ridges
What type of plate movement causes mid ocean ridges and sea floor spreading?
Mid-ocean ridges and seafloor spreading are characteristics of oceanic diverging plates, plates that are moving away from each other.
How did harry hess hypothesis explain seafloor movement?
Harry hess' hypothesis was hot/less dense material rises up the Earth's crust toward the mid-ocean ridges. When the seafloor breaks apart, magma is forced upward and through the cracks. It cools, and becomes a new seafloor. When it moves away from the mid-ocean ridge, it becomes denser and sinks. This helps form ridges.
What occurs when two tectonics plates move away from each other?
mid-ocean ridges and volcanoes
Which force draws the cooler denser crust downward and away from the mid-ocean ridge?
gravity
How did Harry Hess discover seafloor spreading?
Harry hess' hypothesis was hot/less dense material rises up the Earth's crust toward the mid-ocean ridges. When the seafloor breaks apart, magma is forced upward and through the cracks. It cools, and becomes a new seafloor. When it moves away from the mid-ocean ridge, it becomes denser and sinks. This helps form ridges.
