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What the difference between convergent and divergent?
Two paths which are convergent will come together in the distance. Two paths which are divergent will get further and further apart in the distance.
Are the earths countries moving further apart?
No the continents are.
How are plate boundaries classified?
They are classified based on the vector of relative plate motion at the boundary. For example a boundary where the plates are moving away from each other is a divergent boundary, one where they are moving towards each other is a convergent boundary and one in which they are sliding past each other is a transform boundary.
Plate tectonics what forms along continental divergent boundaries?
Along continental divergent boundaries, rift valleys or rift zones can form as the continental plates move apart. These rift zones may be accompanied by volcanic activity and seismic events as the crust stretches and thins. Over time, if the divergence continues, a new ocean basin may form as the continents separate further.
Why don't the present shapes of the continents fit perfectly into a super continents?
As the continents moved further apart, natural erosion of the Coastlines removed and added to the basic shape over billions of years. Much of the evidence relates to the similarities of plants and animals found on now separate continents. Geological evidence points to Antarctica was once further north and had a tropical climate!
Why don't the present shaped of the continents fit perfectly into a super continents?
As the continents moved further apart, natural erosion of the coastlines removed and added to the basic shape over billions of years. Much of the evidence relates to the similarities of plants and animals found on now separate continents. Geological evidence points to Antarctica was once further north and had a tropical climate!
What was an alternate theory used to dispute the theory of plate tectonics?
A proposed explanation for identical species found in divergent locations was the land bridge theory, which supposed shifting dry areas across which living things spread. The further study of rock formations (which were also identical) lent greater weight to the idea that continents were actually joined together in the past.
Do continents drift slowly on earths upper mantle or earths core?
Continents drift on top of the upper mantle. The core is much further down.
What was the names of the two continents after Pangaea split?
The two continents that formed after Pangaea split were Laurasia in the north and Gondwana in the south. These two supercontinents eventually broke apart further to form the continents we have today.
Why don't the present shapes of the continents don't fit perfectly into a super continents?
As the continents moved further apart, natural erosion of the Coastlines removed and added to the basic shape over billions of years. Much of the evidence relates to the similarities of plants and animals found on now separate continents. Geological evidence points to Antarctica was once further north and had a tropical climate!
What type of plate boundary created Surtsey Island?
Surtsey (part of an island group off SW Iceland) is on constructive plate boundaries, which means the two plates move away from each other and magma rises to the surface. This is how a volcano like Surtsey is formed.
Why is gravity slightly weaker on the continents than over the oceans?
The Continents are further from the center of the earth, leaving the oceans to be closer which means gravity is slightly weaker
