Arkaig
Derivation:
Schists, gneisses, granulites and quartzites, principally of the Moine Assemblage.
Types of Parent Materials mapped::
- Glacial drift
- Glacial till
- Shallow drift onto rock
- Shattered rock in situ
- Deeply weathered rock
- Cryogenic deposits
- Morainic deposits
Colour:
Yellowish brown with subsoil
Texture:
Sandy loam to loamy sand in most cases, till deposits generally finer with sandy silt loam or sandy clay loam textures. Stone content variable, mostly in shallow drift or morainic deposits.
Dominant Land Use:
Arable, permanent pasture, forestry and recreation.
Landforms:
Highly variable, from high summits with cryogenic deposits to lowland sites with glacial till and morainic deposits generally confined to valley bottom sites, the latter within highland areas. Shattered rock in situ or shallow drift are characteristic of hill crests, isolated hill tops and areas with varying amounts of outcropping rock.
Soil Chemistry:
Inherently acidic with low (<20%) or medium (20 - 60%) base saturation. Medium to low phosphorus content.
Soil Physical Properties:
30 - 70cm of potential rooting depth, depending on presence of and depth to indurated horizon or rock. Weak subsoil structure.
SERIES NAME | SOIL TYPE | DRAINAGE | PARENT MATERIAL |
---|---|---|---|
Aberscross | Brown forest soil | Free | Drift |
Arkaig | Peaty ranker | Poor | Shallow drift and organic |
Armine | Alpine podzol | Free | Drift |
Badanloch | Peaty gley (SW) | Poor and very poor | Drift |
Bantrach* | Peaty podzol | Imperfect | Till |
Birichin | Humus iron podzol and iron podzol | Imperfect | Drift |
Derraid* | Humus iron podzol and iron podzol | Free | Shallow drift |
Gordonbush | Humus iron podzol and iron podzol | Free | Drift |
Johnstripe* | Humic gley | Poor and very poor | Till |
Kichanroy* | Subalpine podzol | Free | Shallow drift |
Kildonan | Peaty podzol | Free below iron pan | Drift |
Leathain* | Subalpine podzol | Free | Weathered rock |
Quilichan* | Peaty podzol | Free below iron pan | Shallow drift |
Scottarie | Noncalcareous gley | Poor | Drift |
Tombain* | Peaty gley | Poor and very poor | Shallow drift |
*Series originally mapped as Strichen Association