User:BRIAN PELEGREEN/sandbox

FORMATION OF THE SEVEN LANDMASSES (Brian)

SPLITTING OF THE SEVEN LAND MASSES... 1622-FRANCIS BACOR WITH JIG tried to explain on how seven land masses occur but it came to be   ammended by ALFRED WEGNER in 1912 who explained formation of 7 land masses by 3 stages...

3 STAGES OF THE FORMATION OF SEVEN LAND MASSES; A)formation of single landmass.        B)formation of two landmasses. C)splitting of two landmasses into seven continents.       a)formation of single landmass About 280 million years ago there was single landmass called PANGAEA which was sorrounded by an  ocean called PANTHALASA.This landmass broke up and form two land masses.

b)formation of two landmasses On 200 million years ago a single landmass (pangaea) separated by narrow sea to form two   landmasses namely LAURASIA  and GONDWANALAND.The narrow sea separated pangaea was called TETHYS.  Laurasia was on the northern part while Gondwanaland was on southern part.

c)splitting of two landmasses into seven continents on 150 million years ago two continents laurasia and gondwanaland split up to form seven land masses(continents) of todays.Laurasia split and form Europe,South America and North America, and  Gondwanaland formed Africa,Australia,Asia,Antarctica formed by an ice sheet on the part of   Gondwanaland.