Evaporite
Sedimentary material composed of salts that may form from concentrated brines, such as gypsum or halite.
Language and route: English scientific compound evaporate + -ite, inherited Latin ēvaporāre; first coiner not securely established. English scientific compound evaporate + -ite, inherited Latin ēvaporāre; first coiner not securely established
Literal gloss: rock associated with evaporation
The name and its history
No verified first naming act · Earliest geological use not securely page-verified
- What does the word literally mean?
- Immediate source or formation: English scientific compound evaporate + -ite, inherited Latin ēvaporāre; first coiner not securely established. Literal gloss ‘rock associated with evaporation’. This linguistic evidence is distinct from claims about the namer’s intentions.
- What did the original author mean?
- Scientists studying thick salt-bearing successions sought a collective genetic term for precipitation from concentrating waters.
- Why was the name needed?
- But not all salt formations record simple evaporation of seawater; subsurface brine evolution, recrystallisation and later replacement complicate origin.
- What evidence supported the original concept?
- Salt assemblages, solubility order, basin structures, brine geochemistry; BGS deliberately organises salt rocks by observable composition rather than presumed evaporation.
- How has geology changed the concept?
- Evaporite is useful as a customary process term, but should not be used as proof that every salt deposit formed solely by surface evaporation.
Further historical context
Scientists studying thick salt-bearing successions sought a collective genetic term for precipitation from concentrating waters.
But not all salt formations record simple evaporation of seawater; subsurface brine evolution, recrystallisation and later replacement complicate origin.
Salt assemblages, solubility order, basin structures, brine geochemistry; BGS deliberately organises salt rocks by observable composition rather than presumed evaporation.
Evaporite is useful as a customary process term, but should not be used as proof that every salt deposit formed solely by surface evaporation.
Editorial qualification
Priority and exact original naming language not independently authenticated; distinguish documented later use from first coinage.
Related names
Sources
- BGS non-carbonate-salt rock classification — BGS explicitly prefers descriptive non-carbonate salts to potentially genetic evaporite
- British Geological Survey, Rock Classification Scheme, vol. 3 — modern descriptive classification, not evidence of historical first coinage
- 1911 Encyclopaedia Britannica, Salt — historical separation of common rock salt and nineteenth-century mineral label halite