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Geologic Structures

Description: This quiz covers various geologic structures found in the Earth's crust, their formation, and their significance in understanding geological processes.
Number of Questions: 15
Created by:
Tags: geology geologic structures earth science
Attempted 0/15 Correct 0 Score 0

What is the term for a large, spoon-shaped depression in the Earth's crust?

  1. Syncline

  2. Anticline

  3. Basin

  4. Dome


Correct Option: C
Explanation:

A basin is a large, spoon-shaped depression in the Earth's crust, often formed by tectonic forces or erosion.

Which geologic structure is characterized by a downward fold of rock layers?

  1. Syncline

  2. Anticline

  3. Monocline

  4. Horst


Correct Option: A
Explanation:

A syncline is a downward fold of rock layers, often formed by tectonic forces or the weight of overlying sediments.

What is the term for a large, upward fold of rock layers?

  1. Syncline

  2. Anticline

  3. Monocline

  4. Horst


Correct Option: B
Explanation:

An anticline is a large, upward fold of rock layers, often formed by tectonic forces or the weight of overlying sediments.

Which geologic structure is characterized by a single, inclined layer of rock?

  1. Syncline

  2. Anticline

  3. Monocline

  4. Horst


Correct Option: C
Explanation:

A monocline is a single, inclined layer of rock, often formed by tectonic forces or the weight of overlying sediments.

What is the term for a large, uplifted block of rock bounded by faults?

  1. Syncline

  2. Anticline

  3. Monocline

  4. Horst


Correct Option: D
Explanation:

A horst is a large, uplifted block of rock bounded by faults, often formed by tectonic forces.

Which geologic structure is characterized by a downward-faulted block of rock?

  1. Syncline

  2. Anticline

  3. Monocline

  4. Graben


Correct Option: D
Explanation:

A graben is a downward-faulted block of rock, often formed by tectonic forces.

What is the term for a large, circular depression in the Earth's crust caused by the impact of a meteorite or comet?

  1. Crater

  2. Basin

  3. Caldera

  4. Maar


Correct Option: A
Explanation:

A crater is a large, circular depression in the Earth's crust caused by the impact of a meteorite or comet.

Which geologic structure is characterized by a large, volcanic depression formed by the collapse of a volcano?

  1. Crater

  2. Basin

  3. Caldera

  4. Maar


Correct Option: C
Explanation:

A caldera is a large, volcanic depression formed by the collapse of a volcano.

What is the term for a small, circular depression in the Earth's crust caused by a volcanic explosion?

  1. Crater

  2. Basin

  3. Caldera

  4. Maar


Correct Option: D
Explanation:

A maar is a small, circular depression in the Earth's crust caused by a volcanic explosion.

Which geologic structure is characterized by a large, natural arch of rock formed by erosion?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

  4. Blowhole


Correct Option: A
Explanation:

A natural bridge is a large, natural arch of rock formed by erosion.

What is the term for a narrow, natural arch of rock formed by erosion along a coastline?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

  4. Blowhole


Correct Option: B
Explanation:

A sea arch is a narrow, natural arch of rock formed by erosion along a coastline.

Which geologic structure is characterized by a tall, isolated pillar of rock formed by erosion?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

  4. Blowhole


Correct Option: C
Explanation:

A stack is a tall, isolated pillar of rock formed by erosion.

What is the term for a hole in a rock or cliff caused by erosion?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

  4. Blowhole


Correct Option: D
Explanation:

A blowhole is a hole in a rock or cliff caused by erosion.

Which geologic structure is characterized by a large, natural tunnel formed by erosion?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

  4. Tunnel


Correct Option: D
Explanation:

A tunnel is a large, natural tunnel formed by erosion.

What is the term for a large, natural cave formed by the dissolution of soluble rock?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

  4. Cave


Correct Option: D
Explanation:

A cave is a large, natural cave formed by the dissolution of soluble rock.

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