Changes

==Evidence==

==Evidence==

[[File:Continental Drift Fig-1.png|thumb|300px|Fig 1.]]

[[File:Continental Drift Fig-1.png|thumb|300px|{{figure number|1}}]]

The evidence given by Wegener are:

The evidence given by Wegener are:

* Fit of the continents: Wegener noted that if the continents where to be fitted along there margins, they will fit into a whole mass called the Pangaea.

* Fit of the continents: Wegener noted that if the continents where to be fitted along there margins, they will fit into a whole mass called the Pangaea.

[[File:Continental Drift Fig-2.png|center|frame|Fig 2.]]  

[[File:Continental Drift Fig-2.png|center|frame|{{figure number|2}}]]  

* From fossil records: Wegener noted that some of the tropical plant fossils that where once located at the equator are now found in the Antarctica e.g  Glossopteris. Fossils of the reptlile Mesosaurus are found in Africa and South America. Wegener felt that if this animal was a good swimmer to cross the Atlantic then its remains should be widely distributed. But it is not.

* From fossil records: Wegener noted that some of the tropical plant fossils that where once located at the equator are now found in the Antarctica e.g  Glossopteris. Fossils of the reptlile Mesosaurus are found in Africa and South America. Wegener felt that if this animal was a good swimmer to cross the Atlantic then its remains should be widely distributed. But it is not.

   

   

[[File:Continental Drift Fig-3.png|center|frame|Fig3. Mesosaurus in Africa and south America]]

[[File:Continental Drift Fig-3.png|center|frame|{{figure number|3}}Mesosaurus in Africa and south America]]

* Rock type and structure: he also noted that the rocks that were found on one side of a continent are similar to those found on the other. This is also applicable to the structures, including sedimentary, metamorphic and igneous structures. Also, mountain ranges of similar ages are found on opposite side of two continental plates.

* Rock type and structure: he also noted that the rocks that were found on one side of a continent are similar to those found on the other. This is also applicable to the structures, including sedimentary, metamorphic and igneous structures. Also, mountain ranges of similar ages are found on opposite side of two continental plates.

   

   

[[File:Continental Drift Fig-4.png|center|frame|Fig 4. Continental plates showing rock types]]

[[File:Continental Drift Fig-4.png|center|frame|{{figure number|4}}Continental plates showing rock types]]

* Paleoclimatic evidence: there is a range of evidence that shows that area that where once covered by ice are now tropical.

* Paleoclimatic evidence: there is a range of evidence that shows that area that where once covered by ice are now tropical.

   

   

[[File:Continental Drift Fig-5.png|center|frame|Fig 5. Continents as they are today showing areas where evidence of ancient ice sheets exist.]]

[[File:Continental Drift Fig-5.png|center|frame|{{figure number|5}}Continents as they are today showing areas where evidence of ancient ice sheets exist.]]

Evidences given by others:

Evidences given by others:

Various earth scientist have proposed the cause for continental drifting. One of the main cause is explained by Plate tectonics which proposed that the plates move by the convective flow of [[mantle]] material. Some related mechanism are the ridge push and slab pull.

Various earth scientist have proposed the cause for continental drifting. One of the main cause is explained by Plate tectonics which proposed that the plates move by the convective flow of [[mantle]] material. Some related mechanism are the ridge push and slab pull.

[[File:Continental Drift Fig-6.png|center|frame|Fig 6.]]  

[[File:Continental Drift Fig-6.png|center|frame|{{figure number|6}}]]  

==See also==

==See also==