What was the observation that interested Sir Francis Bacon regarding continental drift?

What was the observation that interested Sir Francis Bacon regarding the continental drift?

In 1620, Sir Francis Bacon observed similarities of coasts of Africa and South America. In 1799, Alexander Von Humbolt, German explorer and naturalist, observed the similarities in the geology and features of the west coast of Africa and east coast of South America.

What evidence supported his theory of continental drift?

The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones’ locations.

What two main observations were the theory of continental drift based on?

What are two observations that supported the theory of continental drift? The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.

Who explained their theory of the continental drift?

The theory of continental drift is most associated with the scientist Alfred Wegener. 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.

What are the two theories that support plate movement?

The theory of plate tectonics is what brings together continental drift and seafloor spreading. Plates are made of lithosphere topped with oceanic and/or continental crust.

What is moving the oceans and continents?

Today, the theory of plate tectonics has been widely accepted. Continents rest on massive slabs of rock known as tectonic plates which are constantly moving. Seafloor spreading zones are some of the most constantly changing sites of tectonic activity. Slowly, but surely, the continents and oceans are moving.

How do continental plates move?

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth’s mantle and fit snugly against one another. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other.

What is continental drift theory class 11?

Continental Drift Theory

It was proposed by Alfred Wegener in 1912. According to Wegener, all the continents formeda single continental mass (called PANGAEA) and meg ocean (called PANTHALASSA) surrounded the same. He argued that, around 200 million years ago, the super continent, Pangaea, began to split.

What is continental drift and how does it work?

continental drift, large-scale horizontal movements of continents relative to one another and to the ocean basins during one or more episodes of geologic time. This concept was an important precursor to the development of the theory of plate tectonics, which incorporates it.

What was Wegener’s theory?

Scientists have long noticed the similarity between the two coastlines, but it was not until the 20th century that evidence could support a theory that the continents were once connected. In 1912 a German meteorologist named Alfred Wegener introduced the first detailed and comprehensive theory of continental drift.

What observation led Alfred Wegener’s theory of continental drift hypothesis?

Wegener noticed the similarity in the coastlines of eastern South America and western Africa and speculated that those lands had once formed a supercontinent, Pangaea, which had split and slowly moved many miles apart over geologic time.

What observations evidence led Alfred Wegener to develop his continental drift hypothesis select the correct observations there is more than one?

Alfred Wegener, in the first three decades of this century, and DuToit in the 1920s and 1930s gathered evidence that the continents had moved. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.