Which part of the mantle is still a solid but flows like a thick heavy liquid?

Which part of the mantle is still a solid but flows like a thick heavy liquid?

asthenosphere

Is the crust solid or liquid?

The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma. At the center of the Earth is a hot, dense metal core.

What are 2 interesting facts about the crust?

The crust is the thinnest layer of the Earth. It has an average thickness of about 18 miles (30km) below land, and around 6 miles (10km) below the oceans. The crust is the layer that makes up the Earth’s surface and it lies on top of a harder layer, called the mantle.

What is crust in Volcano?

Water released from the subducting slab causes the overlying mantle to partially melt, forming magma that sustains the Cascade Range of volcanoes (black triangles). The crust is the outermost major layer of the earth, ranging from about 10 to 65 km in thickness worldwide.

What is the most dangerous type of volcano and why?

Composite volcanoes are some of the most dangerous volcanoes on the planet. The viscous lava cannot travel far down the sides of the volcano before it solidifies, which creates the steep slopes of a composite volcano. Viscosity also causes some eruptions to explode as ash and small rocks.

Are volcanoes deep?

Scientists believe that 80 percent of the volcanic eruptions on Earth take place in the ocean. Most of these volcanoes are thousands of feet deep, and difficult to find. Scientists also witnessed molten lava flowing across the deep-ocean sea floor and spotted shrimp living near the volcano’s most active areas.

What volcano will never erupt again?

A dormant volcano is one that is “sleeping” but could awaken in the future, such as Mount Rainier and Mount Fuji. An extinct volcano is “dead” — it hasn’t erupted in the past 10,000 years and is not expected to ever erupt again.

How do you know if a volcano won t erupt anymore?

When there are no signs of an active magma chamber beneath the volcano (no unusual seismic activity, no volcanic gasses escaping etc.), and when there hasn’t been any activity for a long time span (at least 10,000 years).

What is the most dangerous volcano in the Philippines Why?

Taal is one of the Philippines’ most active volcanoes. Over the past few days, it’s begun spewing lava, triggering earthquakes and emitting huge plumes of ash that have spread across the island of Luzon and beyond. Scientists fear a bigger “hazardous eruption” is imminent.