What is the typical rate for seafloor spreading quizlet?
Average rate of seafloor spreading is 1 meter per year.
What is the approximate rate of seafloor spreading?
These age data also allow the rate of seafloor spreading to be determined, and they show that rates vary from about 0.1 cm (0.04 inch) per year to 17 cm (6.7 inches) per year.
Does the seafloor spread at a constant rate?
Seafloor spreading is mainly the result of convection currents dragging the ocean plate along with them, but that is not the only force pushing (or pulling) the seafloor, nor does it necessarily occur at a constant rate.
Where are fastest rates of sea floor spreading?
The fastest present-day seafloor spreading, ~150 km/Myr, occurs along the Pacific-Nazca boundary between the Easter and Juan Fernandez microplates.
What is the typical rate of plate movement?
They move at a rate of one to two inches (three to five centimeters) per year.
What is the average rate of sea floor spreading in the Atlantic ocean?
How much does the Atlantic Ocean growing each year? Because of seafloor spreading and the movement of the ocean floor and of the continents outward from the ridge the Atlantic Basin is widening at an estimated rate of 1 to 10 cm (0.5 to 4 inches) a year.
What is the average rate of seafloor spreading occurring in the Atlantic ocean and in the Pacific Ocean at the East Pacific Rise?
the average rate of seafloor spreading occurring in the Atlantic Ocean and in the Pacific Ocean at the East Pacific Rise? The rate of seafloor spreading at the Mid-Atlantic Ridge is 2 centimeters per year, whereas the rate of seafloor spreading at the East Pacific Rise is 15 centimeters per year.
How do geologists calculate rates of sea floor spreading?
To calculate the rate of the spreading, you need to use the following formula: the distance the sea floor moved divided by the length of time. This is an important concept for people in the earth sciences field. To complete these calculations, you will need maps showing the Earth's crust.
What is the average rate of seafloor spreading occurring in the Atlantic Ocean and in the Pacific Ocean at the East Pacific Rise?
the average rate of seafloor spreading occurring in the Atlantic Ocean and in the Pacific Ocean at the East Pacific Rise? The rate of seafloor spreading at the Mid-Atlantic Ridge is 2 centimeters per year, whereas the rate of seafloor spreading at the East Pacific Rise is 15 centimeters per year.
What is the average rate of seafloor spreading occurring in the Atlantic ocean and in the Pacific ocean at the East Pacific Rise?
the average rate of seafloor spreading occurring in the Atlantic Ocean and in the Pacific Ocean at the East Pacific Rise? The rate of seafloor spreading at the Mid-Atlantic Ridge is 2 centimeters per year, whereas the rate of seafloor spreading at the East Pacific Rise is 15 centimeters per year.
What is the slowest spreading ocean?
The Gakkel Mid-Ocean Ridge (MOR) is the slowest spreading center on the planet with full-spreading rates between 1.33 cm/yr along the Greenland end to 0.63 cm/yr along the Siberian end.
What is the typical rate of plate movement quizlet?
1-18 centimeters a year. You just studied 15 terms!
What is the rate of movement?
As we can say, objects moving with different rate will take different amount of time to cover a given distance. Hence, one of the ways of measuring the rate of motion of an object is to find out the distance travelled by the object in unit time. This quantity is defined as speed.
What is the rate of seafloor spreading in the North Atlantic basin?
3.7 cm/yr The North Atlantic Ocean basin's spreading rate is 3.7 cm/yr.
What is the rate of seafloor spreading in the Atlantic Ocean over the last 130 million years?
Because of seafloor spreading and the movement of the ocean floor and of the continents outward from the ridge the Atlantic Basin is widening at an estimated rate of 1 to 10 cm (0.5 to 4 inches) a year.
What is the rate of spreading at the East Pacific Rise Is this considered fast or slow?
The East Pacific Rise is perhaps the best studied fast-spreading mid-ocean ridge. The ridge segment that creates the Nazca and Pacific plates moves up to 5.6 inches (142 mm) each year. The topography across fast-spreading mid-ocean ridges is less pronounced relative to slow-spreading mid-ocean ridges.
What would happen if the rate of seafloor spreading was faster than the rate of subduction?
What would happen if the rate of seafloor spreading was faster than the rate of subduction? The Earth would grow larger.
What has been the average rate and direction of seafloor spreading in cm per year west of the Juan de Fuca ridge from B to A?
The Juan de Fuca spreading system has a full spreading rate of 6 cm per year. The entire segment is 90 km long and is bound north and south by overlapping spreading centers (Karsten et al, 1986) and the transform faults that are located between the Juan de Fuca, the Gorda and the Explorer plates.
What is the rate of seafloor spreading for Anomaly 5 on the Mid Atlantic Ridge?
Because of seafloor spreading and the movement of the ocean floor and of the continents outward from the ridge, the Atlantic Basin is widening at an estimated rate of 1 to 10 cm (0.5 to 4 inches) a year.
Why is seafloor spreading faster in the Pacific?
Faster spreading ridges like the northern and southern East Pacific Rise are “hotter,” meaning more magma is present beneath the ridge axis and more volcanic eruptions occur. Because the plate under the ridge crest is hotter scientists think that the plate responds to the divergent spreading process more fluidly.
What is a typical rate of plate movement?
They move at a rate of one to two inches (three to five centimeters) per year.
Which is the most typical rate of tectonic plate motion?
Plate Tectonics – A Scientific Revolution. The majority of the research shows that the plates move at the average rate of between approximately 0.60 cm/yr to 10 cm/yr.
What is the average rate of plate motion?
The majority of the research shows that the plates move at the average rate of between approximately 0.60 cm/yr to 10 cm/yr.
What is the rate of seafloor spreading in the Atlantic ocean over the last 130 million years?
Because of seafloor spreading and the movement of the ocean floor and of the continents outward from the ridge the Atlantic Basin is widening at an estimated rate of 1 to 10 cm (0.5 to 4 inches) a year.
What is the spreading rate of the south Atlantic Ocean?
Abstract. The southern Mid-Atlantic Ridge (MAR) is spreading at rates (34–38 mm yr−1) that fall within a transitional range between those which characterize slow and intermediate spreading center morphology.
How far will the Atlantic Ocean spread in a million years?
1. If the Atlantic Ocean is widening at a rate of 3 cm per year how far (in kilometers) will it spread in a million years? In 1 million year Atlantic ocean is widening 30 km.
What is the rate of spreading at the Mid-Atlantic Ridge?
Because of seafloor spreading and the movement of the ocean floor and of the continents outward from the ridge, the Atlantic Basin is widening at an estimated rate of 1 to 10 cm (0.5 to 4 inches) a year.
What is the rate of spreading at the East Pacific Rise quizlet?
The rate of seafloor spreading at the Mid-Atlantic Ridge is 2 centimeters per year, whereas the rate of seafloor spreading at the East Pacific Rise is 15 centimeters per year.
Where is active seafloor spreading today?
Where is active sea floor spreading occurring today? Seafloor spreading is the movement of old rock that is being pushed by the new young oceanic crust. This would be a divergent since the plates are separating from each other. Active seafloor spreading is occurring at mid-ocean ridges.
How fast is the Juan de Fuca Ridge spreading?
Off the coast of the U.S. Pacific Northwest, at the Juan de Fuca Ridge, two tectonic plates are spreading apart at a speed of 56 kilometers per 1 million years. As they spread, periodic eruptions of molten rock give rise to new oceanic crust.