What are 3 pieces of evidence that support plate tectonics?

06/27/2020 Off By admin

What are 3 pieces of evidence that support 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 at least 3 pieces of evidence that led to the development of the theory of plate tectonics?

In particular, four major scientific developments spurred the formulation of the plate-tectonics theory: (1) demonstration of the ruggedness and youth of the ocean floor; (2) confirmation of repeated reversals of the Earth magnetic field in the geologic past; (3) emergence of the seafloor-spreading hypothesis and …

What are some of the major pieces of evidence for the theory of plate tectonics?

The theory of plate tectonics is supported by fossils, the shape of continents, the mid-ocean ridge system, sea floor sediment deposits, and the magnetism of rocks on the sea floor. Oceanic crust forms at the mid-ocean ridges as plates spread and upwelling magma cools.

What are tectonic plates 3 marks?

what are tectonic plates? Tectonic plates are gigantic pieces of the Earth’s crust and uppermost mantle. They are made up of oceanic crust and continental crust. Earthquakes occur around mid-ocean ridges and the large faults which mark the edges of the plates.

What causes the Earth’s plates to 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 the first largest tectonic plate?

1. Pacific Plate. Pacific major plate is the largest which underlies the Pacific Ocean.

What drives the movement of plates explain further?

Research has shown that the major driving force for most plate movement is slab pull, because the plates with more of their edges being subducted are the faster-moving ones. However, ridge push is also presented in recent research to be a force that drives the movement of plates.

Which of the following is evidence of plate tectonics?

Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. Some life “rode” on diverging plates, became isolated, and evolved into new species.

Which of the following is the most recent evidence of plate tectonics?

Volcanic activity and sea-floor spreading at the mid-ocean ridges are the most recent evidence of plate tectonics.