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Geologic Fieldwork

Description: This quiz assesses your understanding of the principles and practices of geologic fieldwork.
Number of Questions: 15
Created by:
Tags: geology fieldwork mapping rock identification geomorphology
Attempted 0/15 Correct 0 Score 0

What is the primary purpose of geologic fieldwork?

  1. To collect samples for laboratory analysis

  2. To observe and document geological features in the field

  3. To create maps of geological formations

  4. To identify and classify rocks and minerals


Correct Option: B
Explanation:

Geologic fieldwork involves visiting and studying geological features in their natural setting, such as outcrops, cliffs, and riverbanks, to gain a better understanding of the Earth's history and processes.

Which of the following is NOT a common tool used in geologic fieldwork?

  1. Hammer

  2. Compass

  3. GPS receiver

  4. Microscope


Correct Option: D
Explanation:

Microscopes are not typically used in geologic fieldwork, as they are primarily used for laboratory analysis of rock and mineral samples.

What is the process of creating a geologic map called?

  1. Mapping

  2. Surveying

  3. Prospecting

  4. Exploration


Correct Option: A
Explanation:

Mapping is the process of creating a representation of geological features on a map, typically using symbols and colors to indicate different rock types, structures, and formations.

What is the term for a rock that is formed from the cooling and solidification of molten rock?

  1. Igneous rock

  2. Sedimentary rock

  3. Metamorphic rock

  4. Fossils


Correct Option: A
Explanation:

Igneous rocks are formed when molten rock (magma or lava) cools and solidifies, either above or below the Earth's surface.

Which of the following is NOT a type of sedimentary rock?

  1. Sandstone

  2. Limestone

  3. Granite

  4. Shale


Correct Option: C
Explanation:

Granite is an igneous rock, not a sedimentary rock. Sedimentary rocks are formed from the accumulation and compaction of sediments, such as sand, mud, and organic matter.

What is the term for a rock that has been changed by heat, pressure, or chemical reactions?

  1. Igneous rock

  2. Sedimentary rock

  3. Metamorphic rock

  4. Fossils


Correct Option: C
Explanation:

Metamorphic rocks are formed when existing rocks are subjected to high temperatures, pressures, or chemical reactions, causing them to change their mineral composition and texture.

What is the term for a natural cavity or opening in the Earth's surface?

  1. Cave

  2. Sinkhole

  3. Canyon

  4. Fault


Correct Option: A
Explanation:

Caves are natural cavities or underground chambers formed by the erosion of soluble rocks, such as limestone or dolomite, by water.

What is the term for a large, steep-sided valley with a river or stream flowing through it?

  1. Canyon

  2. Valley

  3. Gorge

  4. Ravine


Correct Option: A
Explanation:

Canyons are deep, narrow valleys with steep sides, typically formed by the erosive action of rivers or streams over long periods of time.

What is the term for a fracture or break in the Earth's crust where rocks have moved?

  1. Fault

  2. Joint

  3. Fold

  4. Shear zone


Correct Option: A
Explanation:

Faults are fractures or breaks in the Earth's crust where rocks have moved relative to each other, either vertically or horizontally.

What is the term for a bend or fold in rock layers?

  1. Fault

  2. Joint

  3. Fold

  4. Shear zone


Correct Option: C
Explanation:

Folds are bends or curves in rock layers caused by tectonic forces or other geological processes.

What is the term for a zone of crushed and broken rock along a fault?

  1. Fault

  2. Joint

  3. Fold

  4. Shear zone


Correct Option: D
Explanation:

Shear zones are zones of crushed and broken rock along faults, where rocks have been subjected to intense shearing forces.

What is the term for a natural spring where groundwater emerges from the Earth's surface?

  1. Well

  2. Geyser

  3. Spring

  4. Aquifer


Correct Option: C
Explanation:

Springs are natural outlets where groundwater emerges from the Earth's surface, typically at a point where the water table intersects the ground surface.

What is the term for a body of water that collects in a depression in the Earth's surface?

  1. Lake

  2. Pond

  3. River

  4. Ocean


Correct Option: A
Explanation:

Lakes are bodies of water that collect in depressions in the Earth's surface, typically formed by the damming of a river or stream, or by the melting of glaciers.

What is the term for a large, natural body of salt water?

  1. Lake

  2. Pond

  3. River

  4. Ocean


Correct Option: D
Explanation:

Oceans are large, natural bodies of salt water that cover a significant portion of the Earth's surface.

What is the term for a river that flows into a larger river or body of water?

  1. Tributary

  2. Mainstem

  3. Confluence

  4. Delta


Correct Option: A
Explanation:

Tributaries are rivers or streams that flow into a larger river or body of water, contributing to its flow.

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