Why was Pangaea perfectly circular?The following is a map of Pangaea from the America Association of Petroleum Geologists (AAPG);
The above diagram can still be found at
http://www.searchanddiscovery.com/documents/97019/9701904.gifhttp://www.searchanddiscovery.com/documents/97019/index.htmThe AAPG claim their maps of Pangaea are the most accurate ever produced.
Note that Pangaea (together with the shallow Tethys ocean) is neatly circumscribed by a circle.
Why do you think that Pangaea (plus Tethys) fits neatly within a circle?Remember, the America Association of Petroleum Geologists drew the circle in this diagram, not me.
So; why do you think that Pangaea fits neatly within a circle?
Current geological theories provide no explanation.
However, the PreEarth-Heaven collision provides a simple explanation.Namely; The impacted area is contained within a circle on the globe (i.e., is circular).
Therefore, the non-impacted area is also within a circle on the globe (i.e., is circular).
The non-impacted area is by definition Pangea (PreEarth-Pangea).
Therefore, Pangea (PreEarth-Pangea) is circular.To get from PreEarth-Pangea to Earth-Pangea you have to adjust for the fact that Earth has a smaller curvature than PreEarth (PreEarth has a larger curvature than Earth). This adjustment introduces splits. Indeed, if you reduce the curvature of a rigid circular cap (e.g., PreEarth-Pangea), i.e., you flatten it somewhat, then you necessarily introduce splits in the cap.
Therefore, Pangea (Earth-Pangea) is circular with splits.Where the main split is, of course, the pie-shaped region, called the Tethys ocean.
Read all about the PreEarth-Heaven collision here.