The stripes on the strips stand for the magnetic stripes located on the ocean floor, which indicates
the reversal of the Earth’s poles
. The stripes need to be identical on both sides of the strip because they represent stripes of a magnetic field which has a repetitive pattern.
What do the stripes in the represent?
The 50 stars on the flag represent the 50 states of the United States of America, and the 13 stripes represent
the thirteen British colonies that declared independence from the Kingdom of Great Britain
, and became the first states in the U.S. Nicknames for the flag include the Stars and Stripes, Old Glory, and the Star …
What do the stripes in the two strips of paper represent?
The stripes on the strips stand for the magnetic stripes located on the ocean floor, which indicates
the reversal of the Earth’s poles
. The stripes need to be identical on both sides of the strip because they represent stripes of a magnetic field which has a repetitive pattern.
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.
What boundary destroys the seafloor?
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 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 paper represent?
What can paper symbolize? The blank piece of paper is a symbol of all that is to be written. It is
reflective of everything that can be, the hope and promise intrinsic to endeavor
. In much the same way, the start of a journey contains such hope.
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 4 steps of seafloor spreading?
- Magma comes out of the rift valley.
- Magma cools to rock and hardens.
- Rock is pushed away as new rock is formed at MOR.
- Oceanic crust and continental crust meet at the trench.
- Oceanic crust bends down under the continental crust.
- Gravity pulls rock towards mantle.
- Rock melts to mantle.
What are the evidence 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 are the three types of seafloor spreading?
There are three types of plate-plate interactions based upon relative motion: convergent, where plates collide,
divergent
, where plates separate, and transform motion, where plates simply slide past each other.
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
.
At what type of boundary would you observe subduction?
Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. They are found at
convergent plate boundaries
, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate.
What are the 4 types of tectonic plate movement?
- Divergent: extensional; the plates move apart. Spreading ridges, basin-range.
- Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.
- Transform: shearing; plates slide past each other. Strike-slip motion.
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
. …
