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If you could collect a sample of rock from the Mid-Atlantic Ridge where would you look to find the youngest rocks?
You would want to look for rocks at the center of the Mid-Atlantic Ridge, where new oceanic crust is forming through seafloor spreading. The rocks found closest to the ridge axis are typically the youngest, as they have most recently solidified from magma.
How do rocks along the central valley of the mid ocean ridge provide evidence for sea floor spreading?
because the scientists found that the farther the rocks the older the rocks were. so the youngest rocks were found near the mid-ocean ridge. this showed that sea-floor spreading took place. +++ The primary evidence is "magnetic striping": remnant magnetising by the Earth's magnetic field of the iron compounds in the basalt forming the ocean floor. The magnetic traces are parallel to the spreading-ridges, and their polarity reflect the field's periodic reversal. The further from the ridge, the older the stripes. The rock is imprinted with the magnetism as it cools below a certain point in being eruped along the ridge.
What would you expect to find if you measured the temperatures of rocks on the ocean floor at various distances from a mid-ocean ridge?
If one was measuring the temperatures of rocks on the seafloor, the hottest rocks would be located nearest to a mid ocean ridge. This is the location where the hot magma from the asthenosphere rises and is situated on either side of the ridge. The farther away the seafloor is from the central area of heat, the colder it is. This pattern is identical on both sides of a mid ocean ridge. However, if rocks are located near subduction zones or hot spots, they too would be hotter than the majority of the seafloor.
What happens when you move roks away from the ocan ridge?
When rocks are moved away from the ocean ridge, the gap created is eventually filled by magma rising up from the mantle below. This process is known as seafloor spreading, where new oceanic crust is formed as magma solidifies and creates a new ocean floor. Over time, this continuous spreading and creation of new oceanic crust causes the ocean basin to widen.
When examining rocks from both sides of the mid Atlantic ridge scientists found evidence for?
When examining rocks from both sides of the Mid-Atlantic Ridge, scientists found evidence of symmetric patterns of magnetic striping and varying ages of rocks. This indicated that new oceanic crust is formed at the ridge and gradually moves away from it, supporting the theory of seafloor spreading. Additionally, the rocks showed differences in composition and age, with younger rocks closest to the ridge and older rocks further away, reflecting the dynamic processes of plate tectonics.
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!
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.
If you could collect a sample of rock from the Mid-Atlantic Ridge where would you look to find the youngest rocks?
You would want to look for rocks at the center of the Mid-Atlantic Ridge, where new oceanic crust is forming through seafloor spreading. The rocks found closest to the ridge axis are typically the youngest, as they have most recently solidified from magma.
How does evidence that rocks farther from a ridge are older than rocks closer to the ridge support the idea of sea floor spreading?
The evidence that rocks farther from a ridge are older than rocks closer to the ridge supports the idea of sea floor spreading because it aligns with the concept of a divergent boundary where new oceanic crust is continuously formed at the ridge and gradually moves away from the ridge over time. This process allows for the creation of age gradients in the oceanic crust, with the youngest rocks found near the ridge and progressively older rocks located farther away.
Why are oceans far away form a ridge?
cuz rocks come up from the ridge and create land by the ridge
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.
What is the approximate age of the Atlantic Ocean seafloor rocks in million of years?
The seafloor rocks of the Atlantic Ocean are generally around 200 million years old, with the youngest rocks found near the mid-Atlantic ridge, formed by seafloor spreading. As you move away from the ridge, the age of the rocks increases, with some older sections dating back to the Jurassic period. The oldest seafloor rocks are typically found near the continental margins, where they can be over 200 million years old.
How do rocks along the central valley of the mid ocean ridge provide evidence for sea floor spreading?
because the scientists found that the farther the rocks the older the rocks were. so the youngest rocks were found near the mid-ocean ridge. this showed that sea-floor spreading took place. +++ The primary evidence is "magnetic striping": remnant magnetising by the Earth's magnetic field of the iron compounds in the basalt forming the ocean floor. The magnetic traces are parallel to the spreading-ridges, and their polarity reflect the field's periodic reversal. The further from the ridge, the older the stripes. The rock is imprinted with the magnetism as it cools below a certain point in being eruped along the ridge.
What would you expect to find if you measured the temperatures of rocks on the ocean floor at various distances from a mid-ocean ridge?
If one was measuring the temperatures of rocks on the seafloor, the hottest rocks would be located nearest to a mid ocean ridge. This is the location where the hot magma from the asthenosphere rises and is situated on either side of the ridge. The farther away the seafloor is from the central area of heat, the colder it is. This pattern is identical on both sides of a mid ocean ridge. However, if rocks are located near subduction zones or hot spots, they too would be hotter than the majority of the seafloor.
What happens when you move roks away from the ocan ridge?
When rocks are moved away from the ocean ridge, the gap created is eventually filled by magma rising up from the mantle below. This process is known as seafloor spreading, where new oceanic crust is formed as magma solidifies and creates a new ocean floor. Over time, this continuous spreading and creation of new oceanic crust causes the ocean basin to widen.
When examining rocks from both sides of the mid Atlantic ridge scientists found evidence for?
When examining rocks from both sides of the Mid-Atlantic Ridge, scientists found evidence of symmetric patterns of magnetic striping and varying ages of rocks. This indicated that new oceanic crust is formed at the ridge and gradually moves away from it, supporting the theory of seafloor spreading. Additionally, the rocks showed differences in composition and age, with younger rocks closest to the ridge and older rocks further away, reflecting the dynamic processes of plate tectonics.
How did scientists discover that rocks farther away from the mid ocean ridge were older than the ones closer to the mid ocean ridge?
Scientists discovered that rocks farther away from the mid-ocean ridge were older than those closer to it through radiometric dating of the rocks. By analyzing the age of the rocks using isotopes with known half-lives, they were able to determine that the rocks get progressively older as you move away from the ridge due to the process of seafloor spreading.
