Earthquakes Flashcards

1
Q

What epoch do we live on

A

The Holocene

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2
Q

What are stromatolites

A

Layered rock like structures formed by Cyanobacteria

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3
Q

What are hydrothermal vents?

A

An opening in the seafloor out of which heated mineral rich water flows

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4
Q

How do hydrothermal vent help evolution?

A

The vents expel a fluid that was heated to extreme temperatures when seeing through the earths crust from the ocean, the vents influence evolution of organisms in the deep sea

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5
Q

What atmospheric event coincided with the rapid evolution of diverse lifeforms

A

Great oxidation event

Cyanobacteria were responsible for the rapid oxygenation of earths atmosphere

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6
Q

Layers of the Earth

A
  1. Crust
  2. Mantle
  3. Outer core
  4. Inner core
    5.lithosphere
    6.asthenosphere
    7.mesosphere
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7
Q

What are convection currents that drive tectonic plates

A

The molten rock in earths mantle below the crust

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8
Q

Where do earthquakes occur?

A

Earthquakes occur along faults

They happen when two plates push up against one another pressure buildup. Eventually, this pressure is released and an earthquake occurs.

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9
Q

What is the ring of fire?

A

The ring of fire is a tectonic belt of volcanoes and earthquakes

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10
Q

The difference between P waves, S waves and surface waves

A

-p waves: fastest, compressional, travel through solids, liquids and gases

-S waves: slower, travel only through solids, vibrates up and down as the wave moves forward

-surface waves: slowest, travel along the surface and cause the most damage

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