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How does the age of seafloor sediments change with increasing distance from the ocean range?
At ocean spreading ridges, new oceanic crust is formed. The magma that forms this new crust emerges from the ridge and pushes the pre-existing rocks away from the ridge laterally. This results in a strip of new rock cutting through the older rock. As formation of the crust continues, the older rocks will be pushed further away from the ridge, while younger, newly produced rocks will occupy the area closest to the ridge.
Isochrons on the sea floor are located where?
Isochrons on the sea floor are located at the mid-ocean ridges. They represent the age of the oceanic crust and are created as new crust forms at the ridge axis and moves away from it over time. Older crust is farther from the ridge, while younger crust is closer to the ridge.
What is true about the thickness and age of sediments at different locations on the ocean floor that supports seafloor spreading?
Seafloor spreading is supported by the observation that sediments are thinner and younger near mid-ocean ridges, where new crust is formed, and become progressively thicker and older as one moves away from the ridge. This pattern indicates that as new oceanic crust is created at the ridge, it pushes older crust outward, allowing sediment to accumulate over time. Additionally, the age of the sediments correlates with their distance from the ridge, providing strong evidence for the continuous process of seafloor spreading.
How scientist discover that rocks farther away from the mid ocean ridge were older than those near it?
Scientists discovered that rocks farther away from the mid-ocean ridge were older than those near it through radiometric dating of the rocks. By measuring the age of the minerals within the rocks, they found that the farther rocks were older because they had been slowly moving away from the ridge as new crust formed at the ridge and pushed older crust farther out.
How did scientists discover that rocks get older from the mid ocean ridge?
They discovered a pattern of reverse and normal polarity in the rock bodies of the ocean floor that indicated that oceanic crust was constantly being formed over time. Polarity shifts in the Earth had already been noted in continental crustal rock. With the advent of radiometric dating, core samples were taken and dated, confirming that the youngest rock is found at the ridge and rock age advances with distance from the ridge.
How does the age of seafloor sediments change the increasing distance from the ocean ridge?
age increases
How does the age of seafloor sediments change with increasing distance from the ocean ridge?
Age of seafloor rock and sediment increases with distance from the oceanic ridges.
How does the age of seafloor sediments change with increasing distance from the ocean range?
At ocean spreading ridges, new oceanic crust is formed. The magma that forms this new crust emerges from the ridge and pushes the pre-existing rocks away from the ridge laterally. This results in a strip of new rock cutting through the older rock. As formation of the crust continues, the older rocks will be pushed further away from the ridge, while younger, newly produced rocks will occupy the area closest to the ridge.
Is the distance from a mid ocean ridge that a rock sample is taken from the younger the rock is?
Yes, rocks that are taken from a mid-ocean ridge closer to the spreading center are younger. As new oceanic crust forms at the ridge and spreads outward, the rocks record the history of the magnetic reversals and can be dated to provide information about the age of the crust at different distances from the ridge.
As distance from the mid atlantic ridge increases what change in the age of the sea floor is observed?
1. Divergent plate boundaries. The uplift of magma at the mid-ocean ridge is pushing the two plates apart. 2. The sea floor is older the further away from the mid-ocean ridge. (i.e. New crust is being formed at the mid -ocean ridge and pushing the older crust away. 3. 1 km = 100,000 cm / 3 per yr. = 33,333 years 4. rift zones, pillow basalts, black smokers, etc.
How does the age of seafloor sediments change the increasing distance from the oceans ridge?
age increases
Isochrons on the sea floor are located where?
Isochrons on the sea floor are located at the mid-ocean ridges. They represent the age of the oceanic crust and are created as new crust forms at the ridge axis and moves away from it over time. Older crust is farther from the ridge, while younger crust is closer to the ridge.
What is the relationship between the age of rocks on the ocean floor and the distance from the Mid-Atlantic ridge?
The farther away the rocks are, the older they are. When the lava bubbles up from the ridge, the tectonic plates move outward. As the process repeates itself and new lava comes up, the rocks are pushed farther and father away. As a result, the closest rocks are the newest, and the farthest rocks are the oldest!
What is true about the thickness and age of sediments at different locations on the ocean floor that supports seafloor spreading?
Seafloor spreading is supported by the observation that sediments are thinner and younger near mid-ocean ridges, where new crust is formed, and become progressively thicker and older as one moves away from the ridge. This pattern indicates that as new oceanic crust is created at the ridge, it pushes older crust outward, allowing sediment to accumulate over time. Additionally, the age of the sediments correlates with their distance from the ridge, providing strong evidence for the continuous process of seafloor spreading.
How does the age of seafloor bedrock vary with distance from a mid-ocean ridge?
The age of seafloor bedrock increases with distance from a mid-ocean ridge. At the ridge, the bedrock is young, as it is continuously being formed by volcanic activity. As it moves away from the ridge through the process of seafloor spreading, it cools and ages over time.
What observation has been made about the age of the basalt that forms a mid ocean ridge?
New magma of basalt composition emerges at and near the axis because of decompression melting in the underlying Earth's mantle.
How does the age of oceanic crust compare to the age of continental crust?
Oceanic crust is generally younger than continental crust. Oceanic crust is continuously formed at mid-ocean ridges through volcanic activity and then gradually moves away from the ridge, undergoing processes that make it relatively young compared to the older continental crust.
