Soil subgroup

Crioumbrept lítico

It has continuous rock (lithic contact) within 50 cm: it is a shallow soil.

Crioumbrept is a name from the 1975 taxonomy, which many INTA soil survey maps were made with. The current edition no longer has this group: today it would be classified as Humicrept.

What the name says

Soil Taxonomy names are built from parts, and each part says something about the soil. From general to specific:

Taxonomic orderInceptisolSoil young, with some development below the surface (a cambic horizon) but without the clay accumulation or dark surface that would define other orders.
SuborderUmbreptInceptisol with a dark but acidic surface (umbric epipedon).
Great groupCrioumbreptWithin the Umbrept suborder, it It's cold weather.
SubgrouplíticoIt has continuous rock (lithic contact) within 50 cm: it is a shallow soil.

What it means for farming

Intermediate aptitude and very dependent on location. In Argentina there are many Acueptes: Inceptisoles with excess water, often saline or sodic.

Most common surface texture
Loam
Most common drainage
Well drained
Typical effective depth
40 cm

Where it is found

According to the 1:500.000 national map, it covers about 256.820 ha, spread over 2 districts.

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National map units that list it. The scale is 1:500.000: good for seeing the region, not a single property.

ProvinceArea
TIERRA DEL FUEGO E ISLAS MALVINAS256.820 ha

Districts where it is most common

Other Crioumbrept subgroups

Soils it shares map units with

Several soils share each map unit. These are the ones most often found alongside this one: on a property, you will likely find them in the nearby low ground or on the next rise.

The definitions are a plain-language summary of the USDA Keys to Soil Taxonomy. The formal definition includes thickness, color and percentage thresholds that are left out here.

Sources