flood basalt: meaning, definition, pronunciation and examples
C2/LowAcademic/Technical (geology, earth sciences)
Quick answer
What does “flood basalt” mean?
A vast, thick, flat sequence of solidified volcanic rock that was formed by extremely large-volume, low-viscosity lava eruptions over a relatively short geological period.
Audio
Pronunciation
Definition
Meaning and Definition
A vast, thick, flat sequence of solidified volcanic rock that was formed by extremely large-volume, low-viscosity lava eruptions over a relatively short geological period.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage.
Connotations
Identical in both dialects. The term is purely scientific.
Frequency
Used with the same low frequency in specialised academic contexts in both the UK and US.
Grammar
How to Use “flood basalt” in a Sentence
the [Name/Period] flood basalta flood basalt of/in [Location]flood basalt volcanism/eruption/provinceVocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Core term in geology and palaeoclimatology for discussing mass extinction events, large-scale volcanism, and crustal formation.
Everyday
Not used.
Technical
Used to describe specific rock formations and their associated geological processes.
Vocabulary
Synonyms of “flood basalt”
Strong
Neutral
Weak
Vocabulary
Antonyms of “flood basalt”
Watch out
Common Mistakes When Using “flood basalt”
- Using 'flood basalt' as a verb (e.g., 'The volcano flood basalts'). It is only a noun.
- Confusing it with 'basalt flood', which is not a standard term.
- Mispronouncing 'basalt' with stress on the second syllable (/bəˈsɔːlt/ is incorrect for this compound).
FAQ
Frequently Asked Questions
No. A flood basalt is the accumulated result of many successive, enormous lava flows over a large region, forming a thick, extensive geological province.
The term 'flood' metaphorically describes the rapid, high-volume, and widespread outpouring of lava, similar to a fluid flood, which solidifies into basalt rock.
Major examples include the Deccan Traps in India, the Siberian Traps in Russia, and the Columbia River Basalt Group in the northwestern United States.
Yes, several of Earth's major mass extinction events show a correlation in time with the eruption of large flood basalt provinces, as the volcanic gases released can dramatically alter the global climate.
A vast, thick, flat sequence of solidified volcanic rock that was formed by extremely large-volume, low-viscosity lava eruptions over a relatively short geological period.
Flood basalt is usually academic/technical (geology, earth sciences) in register.
Flood basalt: in British English it is pronounced /ˈflʌd ˌbæs.ɒlt/, and in American English it is pronounced /ˈflʌd ˌbæs.ɔːlt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine lava FLOODING a continent, not with water, but with BASALT rock, to form a flat, thick layer.
Conceptual Metaphor
VOLCANIC ERUPTION IS A FLOOD (of lava, not water).
Practice
Quiz
What is a 'flood basalt' primarily associated with?