Drifting of Continents and Plate Tectonics

Alfred Wegener proposed in 1912

Alfred Wegener proposed in 1912 and revised in 1924 that the continents were once joined together and later drifted apart. He was mainly interested in

Pangaea was the supercontinent formed

Pangaea was the supercontinent formed in the upper Carboniferous period when all major landmasses were joined together. It was surrounded by the vast

Laurasia was the northern part

Laurasia was the northern part of Pangaea and included North America, Europe, and Asia. Gondwanaland was the southern part and included South America,

Wegener used the jig

Wegener used the jig-saw fit of coastlines, ancient mountain belts, fossil distribution, gold deposits in Ghana and Brazil, Permo-Carboniferous glacia

The theory was criticised because

The theory was criticised because the coastline fit was not perfect, the proposed forces were too weak, the direction of drift was disputed, and the b