One of the mysteries of the English language finally explained.
An area of coastal flats subject to periodic flooding and evaporation which result in the accumulation of aeolian clays, evaporites, and salts, found in North Africa and Arabia.
- ‘Eastwards, the basalt flows become thinner and interfinger with red lacustrine or sabkha siltstones deposited in the deeper parts.’
- ‘The rocks are massive, strongly jointed and crop out as conical hills or elliptical ridges that rise to 5-20 m above the surrounding dune fields or sabkha.’
- ‘The red siltstone most likely represents deposition in shallow lacustrine and sabkha environments.’
- ‘However, a relative sea level fall in the late Oxfordian was followed by the accumulation of 200 m of subaqueous evaporites and marginal sabkha facies under a dry climate.’
- ‘Sedimentary facies have been grouped into three depositional environments or facies belts that strike in a NW-SE direction parallel to the original palaeo-coastline: sabkha, peritidal flat and open ramp.’
- ‘Such relationships can be understood if it is recognized that aggradation of the lake deposits and sabkhas was contemporaneous with deflation of subaerial dunes during episodes of generally rising lake level.’
- ‘Instead, the thin sandy developments defining the sequence boundaries suggest sandy sabkhas and sand sheets supplied by this undersaturated wind system and only preserved as a consequence of renewed lake-level rise.’
- ‘Halite cast-bearing beds are interpreted as supratidal flat or sabkha deposits.’
- ‘The preponderance of evidence for intrasediment growth and dissolution of evaporites supports a sabkha and, in particular, a saline mudflat setting.’
- ‘The geomorphology of the sabkha setting can be evaluated with reference to the cross-section of the Black Reef Formation.’
- ‘There is strong sedimentological evidence that the evaporites were precipitated in sabkhas or desert salt lakes.’
Late 19th century: from Arabic sabqa ‘salt flat’.
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