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20 terms

Geology Midterm

Geology 100 terms
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Lithosphere
The outer layer of the Earth is called
Hydrosphere
The water on or near Earth's surface is called
Atmosphere
The gases that envelop the Earth is called
Asthenosphere
A region of Earth's outer shell beneath the lithosphere.
Portion of the Earth that acts as a brittle solid
What is Lithosphere
Portion of the Earth that acts as a plastic solid
What is Asthenosphere
Divergent Plate Boundary
Where two plates move away from each other
Boundary that forms explosive volcanoes
What is Convergent Plate Boundary
Plate
A piece of the Earth's crust fragmented by convective motion in the Earth's interior
4.5 billion years old
What is Earth's Age
Convergent Plate Boundary
Where two plates move together, one under the other.
Transform Plate Boundary
Where two plates slide past each other.
Transform Fault
What is the portion of a fracture zone between 2 segments of a mid-oceanic ridge crest.
Core
What is the central zone of Earth
Crust
What is the layer of rock that forms a thin skin over Earth's surface.
Igneous rock
What is a rock that is formed by crystallization from molten rocks called magma.
Sedimentary rock
What is a rock that is formed by disintegration of preexisting rocks& subsequent transportation and deposition of the resultant material by: water, air, ice
Metamorphic rock
What is a rock that is formed by preexisting rocks under increased temp. &pressure due to deep burial.
Luster
What is the term of identifying a mineral based on the way light shines on a mineral. "glassy" "pearly" "silky"
Streak
What is the tern of identifying a mineral based on the color of the powder of the mineral which is determined by rubbing a solid lump of a mineral on an unglazed porcelain.