LOCATION FINOL FM+PBEstablished Series
TAXONOMIC CLASS: Clayey-skeletal, mixed, semiactive, isohyperthermic Humic Dystrudepts
TYPICAL PEDON: Finol very gravelly silty clay loam - on a 50 percent complex slope in agricultural forest. When described (10/3/80) the soil was moist throughout. (Colors are for moist soil. All textures are apparent field textures.)
A1--0 to 5 inches; very dark gray (10YR 3/1) very gravelly silty clay loam; strong fine subangular blocky structure; friable, slightly sticky and slightly plastic; many fine and medium roots; many fine interstitial pores; about 10 percent cobbles and 40 percent hard angular basalt pebbles; medium acid (pH 5.7, 1:1 water) abrupt wavy boundary. (4 to 10 inches thick)
B1--5 to 8 inches; very dark grayish brown (10Yr 3/2) very gravelly silty clay loam; strong fine subangular blocky structure; friable, slightly sticky and slightly plastic; common fine, medium, and coarse roots; many fine tubular pores; about 10 percent cobbles and 40 percent hard angular basalt pebbles; medium acid (pH 5.7, 1:1 water); clear wavy boundary. (2 to 5 inches thick)
B2--8 to 18 inches; dark brown (10YR 3/3) very gravelly silty clay loam; moderate fine and medium subangular blocky structure; friable, slightly sticky and slightly plastic; common fine, medium, and coarse roots; common fine tubular pores; about 10 percent cobbles and 50 percent hard angular basalt pebbles; strongly acid (pH 5.5, 1:1 water); gradual wavy boundary. (9 to 16 inches thick)
C--18 to 22 inches; dark yellowish brown (10YR 3/4) extremely gravelly silty clay loam; weak fine and medium angular blocky structure; friable, slightly sticky and slightly plastic; common fine and medium roots; common fine tubular pores; about 10 percent cobbles and 50 percent pebbles; strongly acid (pH 5.5, 1:1 water.) (3 to 10 inches thick)
R--22 inches; hard basalt.
TYPE LOCATION: Island of Kosrae, Federated States of Micronesia; about 656 feet SE of the old Lelu Hospital site; lat. 5 degrees 19 minutes 54 seconds N. and long. 163 degrees 1 minute 46 seconds E.
RANGE IN CHARACTERISTICS: Depth to bedrock ranges from 20 to 39 inches. The profile in 1:1 water is strongly acid or medium acid.
The A horizon has moist color of 10YR 2/2, 3/1, or 3/2. It is silt loam or silty clay loam and has 20 to 50 percent pebbles and 0 to 15 percent cobbles.
The B horizon has moist color of 10YR 3/2, 3/3, or 4/3. It is silt loam or silty clay loam and has 30 to 60 percent pebbles and 5 to 15 percent cobbles.
The C horizon has moist color of 10YR 3/4, 3/6, or 4/4. It is silt loam, clay loam, or silty clay loam and has 30 to 70 percent pebbles and 5 to 15 percent cobbles.
COMPETING SERIES: These are the Aimeliik and Fomseng. Aimeliik soils are very deep and have a CEC (by ammonium acetate) of less than 24 milligrams per 100 grams of clay. Fomseng soils are shallow to a paralithic contact, and are not skeletal.
GEOGRAPHIC SETTING: Finol soils are on uplands and have slopes of 30 to 60 percent. They formed in residuum and colluvium derived from basic igneous rock. Elevations are 13 to 984 feet. The mean annual rainfall is about 196 to 236 inches, and the mean annual temperature is about 79 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Fomseng soils.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderately rapid permeability.
USE AND VEGETATION: Finol soils are used mainly for subsistence agriculture. The main crops grown are coconut, breadfruit, banana, upland taro and citrus.
DISTRIBUTION AND EXTENT: These soils are on the island of Kosrae, East Caroline Islands. They are of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Kosrae, Federated States of Micronesia, 1981.