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What is being modeled at slits a and b as you pull the strips down through the base seafloor spreading?
As you pull the strips down through the base, slits a and b represent the divergent boundaries of tectonic plates at mid-ocean ridges, where seafloor spreading occurs. Magma rises from the mantle to fill the gap created by the separating plates, solidifying to form new oceanic crust. This process illustrates how tectonic activity leads to the continuous renewal of the ocean floor and contributes to the expansion of ocean basins over geological time.
What else can I help you with?
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
How are magnetic patterns in sea floor rock evidence of seafloor spreading?
Magnetic alignment of rocks, in alternating strips that run parallel to ridges, indicates reversals in Earth's magnetic field and provides further evidence of seafloor spreading.
Magnetic strips on the seafloor are caused in part by?
Magnetic strips on the seafloor are caused in part by seafloor spreading, where new oceanic crust is formed at mid-ocean ridges. As the crust cools and solidifies, it locks in the polarity of the Earth's magnetic field at the time, creating a recorded history of magnetic reversals. This process creates alternating stripes of normal and reversed polarity as the seafloor expands.
What is the sequence of rock strips at the oceanic ridges called?
The sequence of rock strips at oceanic ridges is called "oceanic crust." It is formed through the process of seafloor spreading where magma rises through the Earth's crust, solidifies, and creates new crust. This process helps drive the movement of tectonic plates.
Which was not included in the support for harry hess's hypothesis of sea-floor spreading?
One key piece of support that was not included in the initial support for Harry Hess's hypothesis of seafloor spreading was the mechanism of plate tectonics. This idea was developed and integrated into the theory of seafloor spreading by geologists like Robert Dietz and J. Tuzo Wilson at a later stage.
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
Why are the magnetic strips in the pacific ocean wider than the ones in the Atlantic ocean?
The Pacific seafloor formed at a faster spreading rate than the Atlantic seafloor.
How are magnetic patterns in sea floor rock evidence of seafloor spreading?
Magnetic alignment of rocks, in alternating strips that run parallel to ridges, indicates reversals in Earth's magnetic field and provides further evidence of seafloor spreading.
Magnetic strips on the seafloor are caused in part by?
Magnetic strips on the seafloor are caused in part by seafloor spreading, where new oceanic crust is formed at mid-ocean ridges. As the crust cools and solidifies, it locks in the polarity of the Earth's magnetic field at the time, creating a recorded history of magnetic reversals. This process creates alternating stripes of normal and reversed polarity as the seafloor expands.
What is the sequence of rock strips at the oceanic ridges called?
The sequence of rock strips at oceanic ridges is called "oceanic crust." It is formed through the process of seafloor spreading where magma rises through the Earth's crust, solidifies, and creates new crust. This process helps drive the movement of tectonic plates.
Which was not included in the support for harry hess's hypothesis of sea-floor spreading?
One key piece of support that was not included in the initial support for Harry Hess's hypothesis of seafloor spreading was the mechanism of plate tectonics. This idea was developed and integrated into the theory of seafloor spreading by geologists like Robert Dietz and J. Tuzo Wilson at a later stage.
How do you calculate the rate of seafloor spreading?
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.
Which statement provides evidence that the seafloor is spreading out from both sides of the Mid-Atlantic Ridge?
The presence of alternating magnetic stripes on either side of the Mid-Atlantic Ridge provides evidence that the seafloor is spreading out. As magma solidifies to form new oceanic crust, it records the Earth's magnetic field. These magnetic stripes mirror each other on either side of the ridge, indicating a symmetric pattern of seafloor spreading.
Which was not included in the support for harry hess's hypothesis sea floor spreading?
Granitic strips in the ocean floor ... Novanet
Earth's what field are recorded by rocks in strips parallel to ridges?
Magnetic fields are recorded by rocks in strips parallel to ridges on Earth's surface. This phenomenon is known as magnetic striping, and it provides evidence of seafloor spreading and the movement of tectonic plates over time.
What do the sea floor spreading strips stand for in the paper model?
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What are strips of alternating magnetic polarities found in rocks in the ocean basins?
These strips are known as magnetic stripes, and they are formed by the alignment of magnetic minerals in the oceanic crust as it cools and solidifies. The alternating pattern of polarities reflects regular changes in Earth's magnetic field over time, providing evidence for seafloor spreading and plate tectonics.
