The side slits stand for
where subduction has occurred and the ocean floor has sunk in
. Also, the space under the paper stands for the oceanic crust of the Earth.
What do the side cuts stand for what does the space under the paper stand for?
What does the space under the paper stand for? The side slits stand for
old crust sinking back into the mantle of the Earth
. The space under the paper stands for the stands for the mantle itself.
What does the middle slit represent in seafloor spreading?
The center slit represents
a Mid-Ocean Ridge
2. The strips of paper represent oceanic crust or seafloor. … Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
What process happens at the two side slits represent?
Side slits are the resultant of
subduction
, a geological process wherein a tectonic plate moves under another plate. A side slit is basically the place where the process of subduction occurred. In addition, the subducting plate is the one that goes under the other plate, which is called the overriding plate.
What does the center of the slit in the seafloor spreading model represents what process occurs in the region?
Seafloor spreading helps explain continental drift in the theory of plate tectonics. … Plates that are not subducting are driven by gravity sliding off the elevated mid-ocean ridges a process called ridge push. At a spreading center,
basaltic magma rises up the fractures and cools on the ocean floor to form new seabed
.
What is the middle slit represent?
The middle slit represents
an ocean ridge
, and what is happening here is the creation of new ocean floor. … The mid-ocean ridge is where the earth expels magma from the inside it which then causes the Lithosphere to move. The middle split represents the mid-ocean ridge. In this region, the seafloor spreading occurs.
What causes seafloor spreading?
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other,
heat from the mantle’s convection currents
makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.
Who discovered seafloor spreading?
Harry Hess
: One of the Discoverers of Seafloor Spreading.
At which boundaries is seafloor destroyed?
You are correct that the seafloor is destroyed at
subduction zones
, but it is simultaneously being created at mid-ocean ridges. see figure 1 . Figure 1: Seafloor spreading at a mid-ocean ridge(where new crust is being created) and it’s destruction at a subduction zone.
What evidence supports the theory of seafloor spreading?
Abundant evidence
supports the major contentions of the seafloor-spreading theory. First, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.
What geological feature is formed at the two side slits *?
When two plates are moving away from each other, we call this a divergent plate boundary. Along these boundaries, magma rises from deep within the Earth and erupts to formnew crust on the lithosphere. Most divergent plate boundaries are underwater and form submarine mountain ranges called
oceanic spreading ridges
.
What is the role of mid-ocean ridge in the movement of lithospheric plates?
The mid-ocean ridge represents an area where, in accordance with plate tectonic theory, lithospheric plates (also called tectonic plates)
move apart and new crust is created by magma (molten rock) pushing up from the mantle
. …
How does the new seafloor form at the Mid-Ocean Ridge?
Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as
the Earth’s tectonic plates spread apart
. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.
What are the features of seafloor?
Features of the ocean include
the continental shelf, slope, and rise
. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises.
What is the first step of seafloor spreading?
1.
A long crack in the oceanic crust forms at a mid ocean ridge
. 2. Molten material rises and erupts along the ridge.
Where is active seafloor spreading occurring 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
.
