Concept map of continental drift. The concept was independently and more fully developed by alfred wegener in 1912 but his hypothesis was rejected by.
The concept that the continents once formed a contiguous land mass was first proposed by alfred wegener the originator of the scientific theory of continental drift in his 1912.
The world map before continental drift. The continental drift theory. His ideas centered around continents moving across the face of the earth. The hypothesis of continental drift was developed during the early parts of the twentieth century by wegener.
An ideal activity to do before students complete assessments to identify what they need to further work on. In addition a variant spelling of pangaea is pangea. Plate tectonics the unifying of geology u s making a mark on the ocean floor smithsonian pangaea world globe continental drift m 02j71 png 1500x1460px scientists have groundbreaking technology to figure out how pangaea world globe continental drift m 02j71 png 1500x1460px.
The continental drift theory was replaced by the plate tectonic theory which illustrates how the continents drift. In the early 20th century wegener published a paper explaining his theory that the continental landmasses were drifting across the earth sometimes plowing through oceans and into each other. The name pangaea pangea is derived from ancient greek pan πᾶν all entire whole and gaia γαῖα mother earth land.
According to wegener s continental drift theory all the continents were one single continental mass called a super continent pangaea and a mega ocean surrounded this supercontinent. By hilman rojak june 6 2016. He called this movement continental drift.
World map of pangaea created by alfred wegener to illustrate his concept. Continental drift is the hypothesis that the earth s continents have moved over geologic time relative to each other thus appearing to have drifted across the ocean bed. In the early 1900s alfred wegener proposed the idea of continental drift.
The first truly detailed and comprehensive theory of continental drift was proposed in 1912 by alfred wegener a german meteorologist bringing together a large mass of geologic and paleontological data wegener postulated that throughout most of geologic time there was only one continent which he called pangea late in the triassic period which lasted from approximately 251 million to 199 6. The speculation that continents might have drifted was first put forward by abraham ortelius in 1596. These maps show a succession of two or even three different supercontinents stretching back over a thousand million years.
The first map shows the land 510 million years ago progressing from there reading left to right top to bottom through the accretion and dissolution of pangaea into the most recent ice. Shortly before this had come one of the greatest mass extinctions of all time the p t event. It appears in.
Map of earth before continental drift. This is the world around the time of the great cambrian explosion around 500 million years ago. He believed that all eight continents were once a single supercontinent before separating.
The idea was not quite correct compared to the plate tectonics theory of today but his thinking was on the proper track. The theory of continental drift is most associated with the scientist alfred wegener.