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graben
A depressed block of the crust of the earth which has slipped between two parallel faults.
Noun
pl: grabens
This term is a specialized geological descriptor used primarily in tectonic studies to describe a specific structural landform. It carries a neutral, scientific connotation and is rarely used outside of academic, geological, or geographical contexts.
Because it refers to a distinct physical feature of the earth's crust, it is treated as a countable noun. Geologists often distinguish between a single graben and a series of them, which may form a larger rift valley.
Meanings
Examples
none
The valley is a classic example of a graben formed by tectonic extension.
History
The sedimentary layers within the graben provide a record of ancient lake deposits.
none
I wonder if this entire basin is actually a massive graben.
Trivia
The region is characterized by a series of horsts and grabens.
School Life
We need to map the boundary faults of the graben more accurately.
Trivia
A graben occurs when the crust is pulled apart.
Related Words
rift valleytroughhorstgeologytectonicsfaultcrustlithospheresubsidenceextensiondivergenceriftvalleydepressionbasinstratigraphysedimentmagmavolcanismearthquakeseismicplateboundarydisplacementnormal faultblockuplifterosiondepositiontopographyterraingeomorphologycrustaltensionshearstressstrainfracturefissurecanyongorgeravinegeologicmantleasthenosphereisostasytectonismorogenylithologybedrockoutcropdipstrikefault planeslipcontinental driftplate tectonics