What are the 6 pieces of evidence for the theory of continental drift?

What are the 6 pieces of evidence for the theory of continental drift?

What are six pieces of evidence for the continental drift theory? Reptile Fossils- dinosaurs couldn’t have swam across a vast ocean. Plant Fossils- all these regions were once connected and had similar climates. Tropical plants found in Arctic- tropical plants can’t grow in cold climates.

Which evidence best supports continental drift?

Fossil Evidence

What are 4 pieces of evidence that support the theory of 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 is some 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.

What are the five effects of plate tectonics?

Explain how rock formations, geologic environments, mineral resources, volcanoes and their eruptions, landforms, mountain building processes, climate change, evolution, folds, faults and earthquakes relate to and are affected by plate tectonics. [Insert brief introductory statement here.]

What are the 3 causes of plate movement?

In this lesson, we explore the causes of plate movement, including thermal convection, ridge push and slab pull.

What are the factors affecting plate tectonics?

Heat and gravity are fundamental to the process Lithospheric plates are part of a planetary scale thermal convection system. The energy source for plate tectonics is Earth’s internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces.

What are the three types of plate tectonics?

Tectonic Plates and Plate Boundaries

• There are three main types of plate boundaries:
• Convergent boundaries: where two plates are colliding.
• Divergent boundaries – where two plates are moving apart.
• Transform boundaries – where plates slide passed each other.

What are 5 landforms caused by plate movement?

They include mountains, plateaus, and rift valleys. Whereas erosion shapes landforms, their origins lie in tectonic processes that build the major structures of the Earth.

What are the 5 plate boundaries?

What are the major plate tectonic boundaries?

• Divergent: extensional; the plates move apart. Spreading ridges, basin-range.
• Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.
• Transform: shearing; plates slide past each other. Strike-slip motion.

How many plate tectonics are there?

seven

Which plate do we live on?

lithosphere

What are the 12 major plates?

There may be scientific consensus as to whether such plates should be considered distinct portions of the crust; thus, new research could change this list.

• African Plate.
• Antarctic Plate.
• Australian Plate.
• Caribbean Plate.
• Cocos Plate.
• Eurasian Plate.
• Nazca Plate.
• North American Plate.

What are two bad things about plate tectonics?

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

What are some interesting facts about plate tectonics?

Interesting Facts about Plate Tectonics

• One famous transform boundary is the San Andreas Fault in California.
• The Mariana Trench is the deepest part of the ocean.
• Scientists are now able to track the movement of tectonic plates using GPS.

What is the most dangerous type of plate boundary?

At convergent plate boundaries, where two continental plates collide earthquakes are deep and also very powerful. In general, the deepest and the most powerful earthquakes occur at plate collision (or subduction) zones at convergent plate boundaries.

Why plates are moving?

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 really happens when plates move?

When the plates move they collide or spread apart allowing the very hot molten material called lava to escape from the mantle. When collisions occur they produce mountains, deep underwater valleys called trenches, and volcanoes. The Earth is producing “new” crust where two plates are diverging or spreading apart.

What will happen if the plates continue to move?

Even though plates move very slow the motion of the plates moving is called plate tectonics, has a huge impact on the Earth. Plate tectonics form the oceans, continents, and mountains. It also helps us understand why and where natural disasters like earthquakes occur and volcanoes erupt.

In what direction do the two plates move?

The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other. They move at a rate of one to two inches (three to five centimeters) per year.

What happens when two plates rub against each other as they move in opposite direction?

Plates Slide Past One Another Plates grinding past each other in opposite directions create faults called transform faults. Powerful earthquakes often strike along these boundaries. The San Andreas Fault is a transform plate boundary that separates the North American Plate from the Pacific Plate.

What happens when two oceanic plates move towards each other?

When oceanic or continental plates slide past each other in opposite directions, or move in the same direction but at different speeds, a transform fault boundary is formed. No new crust is created or subducted, and no volcanoes form, but earthquakes occur along the fault.

What do two stuck tectonic plates need in order to break loose from each other?

What do two stuck tectonic plates need in order to break loose from each other? They need energy to break loose from each other.

Does Earth become smaller or bigger when plates move?

But the Earth isn’t getting any bigger. In locations around the world, ocean crust subducts, or slides under, other pieces of Earth’s crust. The boundary where the two plates meet is called a convergent boundary. Deep trenches appear at these boundaries, caused by the oceanic plate bending downward into the Earth.

What type of stress is most likely to occur at this boundary?

Tension is the major type of stress found at divergent plate boundaries. Shear stress happens when forces slide past each other in opposite directions (Figure below). This is the most common stress found at transform plate boundaries.

What type of stress is a transform boundary?

When forces are parallel but moving in opposite directions, the stress is called shear. Shear stress is the most common stress at transform plate boundaries.

Which type of stress can cause an anticline?

compressional stress

What are the three main types of stress in rock?

Stress is the force applied to a rock and may cause deformation. The three main types of stress are typical of the three types of plate boundaries: compression at convergent boundaries, tension at divergent boundaries, and shear at transform boundaries.

What is a real life example of tensional stress?

A prime example of tensional stress is the mid-Atlantic ridge, where the plates carrying North and South America are moving west, while the plates carrying Africa and Eurasia are moving east. Tensional stress can also occur well within an existing plate, if an existing plate begins to split itself into two pieces.