# Hacktivateed

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## When plates of the same density come together it is called?

A tectonic boundary where two plates are moving toward each other. If the two plates are of equal density, they usually push up against each other, forming a mountain chain.

Do the plates in activity have the same densities?

Explanation: They are denser compared to continental crust, meaning they have more mass per unit volume. Continental crust is just the opposite. It is located under land masses and is less dense than oceanic plates.

When two continental plates have the same density What will happen to the crust?

Continental – Continental convergence – Here since both plates have the same density neither is subducted because the continental rocks are relatively light and, like two colliding icebergs, resist downward motion. Instead, the crust tends to buckle and be pushed upward or sideways. This is how mountains form.

### What is the density of a plate?

The typical density for carbon steel plate is 0.284 pounds per cubic inches (490 pounds/cubic feet) (imperial) or 7.85 tons/cubic meters (metric).

What happens when two plates collide?

If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary.

What causes the plates to move?

Tectonic shift is the movement of the plates that make up Earth’s crust. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.

## Why don’t we feel the plates moving?

We don’t usually feel this movement because it is quite gradual – just a few millimetres every year. With time, the pressure of this movement builds up, and there is a sudden shift inside the Earth that we feel as an earthquake. The Earth’s crust also has cracks. Scientists call these cracks tectonic plate boundaries.

What causes plates to move?

What is density of steel?

Properties. The density of steel varies based on the alloying constituents but usually ranges between 7,750 and 8,050 kg/m3 (484 and 503 lb/cu ft), or 7.75 and 8.05 g/cm3 (4.48 and 4.65 oz/cu in).

### How much does 1 square foot of steel plate weigh?

Plates

Standard
Thickness Weight Per Square Foot
7/8 35.74
1 40.84
1-1/8 45.95

What two interacting plates from the transform fault boundary?

San Andreas Transform Plate Boundary The transform plate boundary between the Pacific and North American Plates in western California formed fairly recently.

Is it possible for two plates to have the same density?

Consider that we refer to the mean density of the plate…that means the average density from the surface down to about 70-100 km…So given all the irregularities (the earth is heterogeneous at small scale) that exist it will be EXTREMELY rare that two plate will have the same density.

## What happens when two tectonic plates collide?

A tectonic plate boundary always forms when two continental plates collide. Neither plate subducts because the crust have approximately the same density. Instead, the rocks are smashed together causing them to recrystallize due to the intense heat and pressure from the colliding plates.

How does the age of a plate affect density?

Basically the age of the two plates that form a boundary will differ and density correlates roughly with age… so as long as the ages are different so will the densities. If they have equal density, good question – it probably depends on the geometry of the collision.

Why do tectonic plates form a convergent boundary?

Formation convergent boundaries. A tectonic plate boundary always forms when two continental plates collide. Neither plate subducts because the crust have approximately the same density. Instead, the rocks are smashed together causing them to recrystallize due to the intense heat and pressure from the colliding plates.