GEOLOGY

Detailed explanation-1: -Wegener called this ancient continent Pangaea. Other scientists had proposed that such a continent existed but had explained the separation of the modern world’s continents as resulting from the subsidence, or sinking, of large portions of the supercontinent to form the Atlantic and Indian oceans.

Detailed explanation-2: -He hypothesized that all of the modern-day continents had previously been clumped together in a supercontinent he called Pangaea (from ancient Greek, meaning “all lands” or “all the Earth”). Over millions of years, Wegener suggested, the continents had drifted apart. He did not know what drove this movement, however.

Detailed explanation-3: -They all existed as a single continent called Pangea. Pangea first began to be torn apart when a three-pronged fissure grew between Africa, South America, and North America. Rifting began as magma welled up through the weakness in the crust, creating a volcanic rift zone.

Detailed explanation-4: -Pangea (336-175 mya) Pangea (sometimes spelled pangaea) was Earth’s most recent supercontinent. This supercontinent contained nearly all the land on Earth. This fact is reflected in Pangea’s name which means ‘all lands’ in Greek. In total, the single continent of Pangea took up about 1/3 of Earth’s surface.