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Having rocks scattered along a valley floor typically indicates past geological processes such as erosion, glaciation, or rock falls. These rocks may have been transported by glaciers or rivers and left behind as the landscape evolved. The distribution of rocks can provide insights into the history and formation of the valley.
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How do rocks along the central valley of the mid-ocean ridge provide evidence of sea- floor spreading?
Rocks along the central valley of the mid-ocean ridge display symmetrical patterns of magnetic striping where new oceanic crust is formed. This occurs as magma is extruded along the ridge, creating a record of Earth's changing magnetic field over time. The alternating magnetic polarity of these rocks provides concrete evidence for sea-floor spreading and the movement of tectonic plates.
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.
How does ice transport materials?
Through Plucking, when melt water freezes in the cracks of a mountain, and plucks out the loose rocks, and also abrasion, when the looses rocks scrape along the valley floor, to pick up even more till, and create striations, which are marks left on the valley floor. Ice also picks up even more rocks through landslides, or rocks falling over the hanging valley, (which is a steep drop created after interlocking spurs have been truncated, by the glacier cutting through them.) The rocks and other natural debris then is frozen, by the melt water, and is transported as the ice moves, in a glacial retreat, or advance.
Where does the new rocks form on the sea floor?
Forms by lava from volcanoes on the sea floor
How would the age of the oldest rocks on the continents compare with the age of the oldest rocks on the seafloor if the rock on the continents is continually formed but not removed?
The oldest rocks on the continents would be much older than the rocks on the sea floor because the rocks on the continents are not being removed unlike the rocks on the sea floor that are made by the mid-ocean ridge are being removed by deep ocean trenches. this prossess that is occuring on the sea floor is called sea floor spreading. evidence of this is the Pacific ocean shrinking and the Atlantic ocean growing.
How do rocks along central valley of mid ocean ridge provide evidence of sea floor spreading?
because
What kind of rocks are in Death Valley?
Metamorphic, along with volcanic and plutonic igneous rocks.
How do rocks along the central valley of the mid-ocean ridge provide evidence of sea- floor spreading?
Rocks along the central valley of the mid-ocean ridge display symmetrical patterns of magnetic striping where new oceanic crust is formed. This occurs as magma is extruded along the ridge, creating a record of Earth's changing magnetic field over time. The alternating magnetic polarity of these rocks provides concrete evidence for sea-floor spreading and the movement of tectonic plates.
How do rocks along the central valley of the mid-ocean ridge provide evidence of the sea-floor spreading?
Rocks along the central valley of the mid-ocean ridge show a pattern of alternating polarity, indicating reversals in Earth's magnetic field. This pattern is caused by the cooling of magma at the ridge, locking in the magnetic orientation at the time of solidification. By studying the magnetic properties of these rocks, scientists can determine the rate of sea-floor spreading and the age of the oceanic crust.
Is it true that the magnetism of the rocks along the ocean floor is consistent in that there is no reversal of polarity?
The rocks of the ocean floor are not consistent and do show past reversal of polarity. The statement in the question is false.
Where can you find the youngest rocks on the ocean floor?
The youngest rocks on the ocean floor are typically found along mid-ocean ridges. These areas are where new oceanic crust is formed through volcanic activity and the process of seafloor spreading. As the magma cools and solidifies, it creates new rocks that are relatively young compared to rocks found in other parts of the ocean floor.
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.
How does ice transport materials?
Through Plucking, when melt water freezes in the cracks of a mountain, and plucks out the loose rocks, and also abrasion, when the looses rocks scrape along the valley floor, to pick up even more till, and create striations, which are marks left on the valley floor. Ice also picks up even more rocks through landslides, or rocks falling over the hanging valley, (which is a steep drop created after interlocking spurs have been truncated, by the glacier cutting through them.) The rocks and other natural debris then is frozen, by the melt water, and is transported as the ice moves, in a glacial retreat, or advance.
How was the central valley formed?
The Central Valley in California was formed by a combination of geologic processes, including tectonic plate movement, faulting, and erosion. Over millions of years, the valley was shaped by the movement of the Pacific and North American plates along the San Andreas Fault system, and further sculpted by the flow of rivers and glaciers. The valley continues to be shaped by ongoing geologic processes.
How do rocks along the central valley of the mid-ocean ridge provide evidence of sea floor spreading?
Over a long period of time things can move suck as ROCK can move in the ocean from high and low tides, pressure, and waves only up to 3 ft....
How do rocks along the central valley of the mid-ocean ridge provide evidence of the sea floor spreading?
Over a long period of time things can move suck as ROCK can move in the ocean from high and low tides, pressure, and waves only up to 3 ft....
What happens when the Earth's crust splits apart and forms a valley?
It causes what we call "sea-floor spreading." Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart. As the plates move apart, the rocks break and form a crack between the plates. Earthquakes occur along the plate boundary. Magma rises through the cracks and seeps out onto the ocean floor like a long, thin, undersea volcano.
