One of them is that this has to do with the fact that Venus has no surface water that's needed to kind of lubricate the movement of the plates, you know, like oceans on Earth.

Notice first that there could be a substantial difference between lithosphere thickness and plate thickness.

The tectonic plates are starting to pull apart.

Here on Earth, moving tectonic plates are a major geological element, just crucial for the whole surface dynamic, right?

Remember tectonic plates?

None of these volcanoes was formed as a result of collisions between plates of the Martian crust-there is no plate motion on Mars.

They as the plate moved slowly northwest, new volcanic islands would have forms as the plate moved over the volcanic source.

Generally speaking, the interiors of plates are geologically uneventful.

The plates have edges that are spreading ridges (where two plates are moving apart and new seafloor is being created), subduction zones (where two plates collide and one plunges beneath the other), or transform faults (where two plates neither converge nor diverge but merely move past one another).

So, in recent years, some geologists have used plate tectonic theory to make what they call geopredictions.

Once it was understood how these plates move, it was possible to determine past movements of Earth’s continents and how these slow movements have reshaped Earth’s features at different times.

These plates…uh…now these tectonic plates support the continents and oceans.

So more and more of this plate, the ocean floor, would go down under the continent into the mantle. OK?

So to continue our example… As the ocean floor plate begins to sink down into the mantle, it would drag or pull the entire plate along with it.

And once the ocean plate begins to sink, it would be affected by another force – slab pull.

So if an ocean floor tectonic plate meets the edge of a continent and they push against each other, the heavier one sinks down and goes under the other one.

Student: Yeah. Um…basically, a subduction zone is where two tectonic plates collide.

but instead of a sheet of paper, you've got a tectonic plate, and it's moving over this plume of intensely hot magma,

Wilson's theory was that: hot spots exist below tectonic plates, and they're the cause of these volcanoes.But what causes the hot spots?

The table was set with plates, knives, forks and glasses.

Imagine this dinner plate is floating around in the wind, right?

At this point it looks kind of like a thin dinner plate that rather than being circular, is hexagonal with six flat edges.

One of the plates on the side of the machine had come loose.

On the other hand were purely utilitarian structures, such as factories and grain elevators, which employed modern materials such as steel girders and plate glass in an undisguised and unadorned manner.

You begin this development with six arms or branches radiating out from the center plate.

The presidency was handed to him on a plate.

He has a lot on his plate at the moment.

We have enough on our plate. There is plenty of work to be done already.

a plate of bacon and eggs

Plates of sandwiches and cakes

The roast beef plate is very good.

He broke his plate eating nuts.

On the table beside an empty plate was a pile of books.

They aren't real gold, they're just plate.

I read her name on the polished brass plate.

The Queen handed her the coveted ladies' plate.

He plated the winning run in Wednesday's victory.

Carlos Rivera plated Jason Kendall with a sacrifice fly.

One of the plates on the side of the machine had come loose.

The Army provided armour kits so mechanics in the field could plate the trucks.

They are plated in gold.