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Geology Terms A-Z

GIven a definition, try to name the geology term that corresponds to that letter
Source: Wikipedia
The first letter of the word has been given to help.
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Polen
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Last updated: April 20, 2026
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First submittedApril 20, 2026
Times taken5
Average score50.0%
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Definition
 
Answer
Fossilized resin or tree sap, usually orange or gold
A
Amber
A landform scooped out by water erosion
B
Basin
A material whose constituents are arranged in lattice structure
C
Crystal
The process by which material is added to an area
D
Deposition
The wearing away of rocky by wind, water, and/or ice
E
Erosion
The preserved remains or traces of a dead organism
F
Fossil
A loose collection of rocks
G
Gravel
A fissure where geothermally heated water discharges
H
Hydrothermal vent
Rock formed by the solidification of cooled magma
I
Igneous
A geological period (201 mya to 143.1 mya). Hint: dinosaurs
J
Jurassic
Topography formed by the dissolution of soluble bedrock
K
Karst
Molten rock expelled from an erupting volcano
L
Lava
An inorganic solid with a specific chemical composition
M
Mineral
A small, irregularly rounded lump of mineral that has a contrasting composition of the enclosing sediment
N
Nodule
Volcanic glass formed when moleten rock cools rapidly
O
Obsidian
A vertical standing rock formation
P
Pillar
A mineral composed of silicon dioxide
Q
Quartz
A linear zone where the lithosphere is being pulled apart
R
Rift
Very fine rock particles
S
Sediment / silt / sand
One of the divisions of the lithosphere
T
Tectonic plate
An igneous rock with a very low silica content
U
Ultramafic
A vent or mountain from wihich molten rock and gases escape to the surface
V
Volcano
An iron, manganese, and tungstate material
W
Wolframite
A rock fragment that becomes enveloped in a larger rock
X
Xenolith
A type of powdered, yellow uranium representing an intermediate step in processing uranium ore
Y
Yellowcake
A zirconium silcate
Z
Zircon
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