b. Knowing the various dates for the magnetic pole revesals, and the distance from the location of a known reversal site to the ocean ridge.
rate of spreading for stripe = width of stripe / time duration If a magnetic strips is 60 km wide and formed over 2 million years, then the rate at which spreading formed the was 30 km/m.y. The rate is equivalent to 3 cm/year. Spreading added an equal width of oceanic crust to a plate on the other side of the mid-ocean ridge, so the total rate of spreading across the ridge was 60 km/m.y. (6 cm/year), a typical rate of seafloor spreading.
Typical rates of spreading average around 5 centimeter (2 inches) per year.
The movement of the seafloor can vary depending on the location, but on average it moves at a rate of a few centimeters per year. This movement is a result of plate tectonics and the process of seafloor spreading.
The rate at which the seafloor is spreading apart can vary, but typically it ranges from a few centimeters to a few tens of centimeters per year. This spreading occurs along mid-ocean ridges where tectonic plates are moving away from each other, creating new oceanic crust.
One weakness of the seafloor spreading theory is the question of what drives the movement of the tectonic plates apart in the first place. The mechanism behind this driving force is still not fully understood. Additionally, there are discrepancies in the rate of spreading and the age of the oceanic crust in certain regions, leading to some uncertainties in the theory.
rate of spreading for stripe = width of stripe / time duration If a magnetic strips is 60 km wide and formed over 2 million years, then the rate at which spreading formed the was 30 km/m.y. The rate is equivalent to 3 cm/year. Spreading added an equal width of oceanic crust to a plate on the other side of the mid-ocean ridge, so the total rate of spreading across the ridge was 60 km/m.y. (6 cm/year), a typical rate of seafloor spreading.
Typical rates of spreading average around 5 centimeter (2 inches) per year.
The typical rate of seafloor spreading in the Atlantic Ocean is around 2.5 centimeters per year. This rate can vary along different sections of the Mid-Atlantic Ridge, with some areas spreading faster than others due to tectonic activity.
They proved that the seafloor was spreading.
A diagram that shows how seafloor spreading works.
Seafloor spreading is triggered by a rift in a continental land mass.
Gravity in the oceanic crust is responsible for seafloor spreading.
The Pacific seafloor formed at a faster spreading rate than the Atlantic seafloor.
The observation of the alternating magnetic stripes on the seafloor was instrumental in formulating the hypothesis of seafloor spreading.
Seafloor Spreading helped move the Continents to their current location.
The Mid-Atlantic Ridge has one of the slowest rates of seafloor spreading, averaging about 2.5 cm per year. This ridge is located in the Atlantic Ocean and is less active compared to other spreading ridges like the East Pacific Rise.
The movement of the seafloor can vary depending on the location, but on average it moves at a rate of a few centimeters per year. This movement is a result of plate tectonics and the process of seafloor spreading.