What evidence did Wegener not support his continental drift theory?

What evidence did Wegener not support his continental drift theory?

Though most of Wegener’s observations about fossils and rocks were correct, he was outlandishly wrong on a couple of key points. For instance, Wegener thought the continents might have plowed through the ocean crust like icebreakers smashing through ice.

What are the 4 pieces of evidence supporting continental drift?

They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

What are 6 pieces of evidence that support continental drift?

In the early part of the 20th century, scientists began to put together evidence that the continents could move around on Earth’s surface. 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.

What piece of evidence is considered the strongest evidence for Pangea?

Finally, the strongest evidence for the existence of Pangaea is something called paleomagnetism. Some rocks have minerals inside ofthem that are magnetic, and when the rock forms those magnetic minerals will line up and point to the North Pole.

What is the mechanism behind plate tectonics?

The mechanism behind Plate Tectonics. The main features of plate tectonics are: Convection currents beneath the plates move the crustal plates in different directions. The source of heat driving the convection currents is radioactivity deep in the Earths mantle.

What is the evidence for and what is the mechanism for plate tectonics?

There is variety of evidence that supports the claims that plate tectonics accounts for (1) the distribution of fossils on different continents, (2) the occurrence of earthquakes, and (3) continental and ocean floor features including mountains, volcanoes, faults, and trenches.

What are two bad things about plate tectonics?

Two bad things that can happen as a result of plate tectonics are: volcanoes and earthquakes.

How do humans benefit from plate tectonics?

Plate tectonics affects humans in several important ways. What would Earth be like without plate tectonics? We’d have many fewer earthquakes and much less volcanism, fewer mountains, and probably no deep-sea trenches. In other words, the Earth would be a much different place.

What are some negative aspects of plate tectonics?

A few consequences of plate tectonics based on projections of present motion include:

• Portions of California will separate from the rest of North America.
• The Italian “boot” will disappear.
• Australia will become linked to Asia.
• Africa will separate from the Near East.

What would Earth look like without plate tectonics?

Over millions of years, continents drift across Earth’s surface, going from one climate zone to another. Without plate tectonics, Earth would not have its diverse geography, which provides a wide range of habitats. Plate tectonics is also responsible for hydrothermal vents on the ocean floor.

What are negative effects of earthquakes?

The effects from earthquakes include ground shaking, surface faulting, ground failure, and less commonly, tsunamis.

What benefits does an earthquake have to life and nature?

A: Earthquakes are very useful to humans because they provide a picture of what’s going on underground. This can make oil and gas extraction more efficient, and allows scientists to monitor the progress of water during geothermal energy extraction.

Why California has so many earthquakes?

California is so prone to earthquakes because it lies on the San Andreas Fault. The San Andreas Fault extends roughly 800 miles through the US state. Faults are areas where two tectonic plates come together.

Are earthquake waves good or bad?

Earthquakes can be very dangerous, if you are in the wrong place. They can make buildings fall down and set off landslides, as well as having many other deadly effects. An earthquake that occurs at the bottom of the sea can push water upwards and create massive waves called tsunamis.