LOCATION FINGEROCK               AK

Established Series
IRD. SMC/NDP/SCD
05/2022

FINGEROCK SERIES

Landscape--shore complexes
Landform--raised beaches
Slope--0 to 1 percent
Parent material--beach sand
Mean annual precipitation--about 1400 mm
Mean annual air temperature--about 5 degrees C
Depth class--very deep
Drainage class--moderately well drained
Soil moisture regime--udic
Soil temperature regime--cryic
Soil moisture subclass--aquic

TAXONOMIC CLASS: Mixed Oxyaquic Cryopsamments

TYPICAL PEDON: Fingerock fine sand on a raised beach, on a slope of 0 percent at an elevation of 5 m (When described on August 20, 2015, the soil was moist from the surface to a depth of 90 cm and wet from a depth of 90 to 150 cm.)

C1--0 to 18 cm; fine sand, pale yellow (5Y 7/4) dry, olive (5Y 5/4) moist; single grain; loose, nonsticky and nonplastic; common fine roots throughout; common very fine and fine interstitial pores; very slightly effervescent (HCL, 1N); moderately alkaline (pH 7.9); gradual smooth boundary

C2--18 to 22 cm; sand, pale yellow (5Y 7/3) dry, olive (5Y 5/3) moist; single grain; loose, nonsticky and nonplastic; common fine roots throughout; common very fine and fine interstitial pores; strongly effervescent (HCL, 1N); moderately alkaline (pH 8.3); diffuse smooth boundary

C3--22 to 130 cm; sand, pale yellow (5Y 7/3) dry, olive (5Y 5/3) moist; massive; loose, nonsticky and nonplastic; common fine roots throughout; common very fine and fine interstitial pores; strongly effervescent (HCL, 1N); moderately alkaline (pH 8.3); diffuse smooth boundary

Cg--130 to 150 cm; fine sand, light olive gray (5Y 6/2) dry, olive gray (5Y 4/2) moist; massive; loose, nonsticky and nonplastic; strongly effervescent (HCL, 1N); moderately alkaline (pH 8.3)

TYPE LOCATION: Glacier Bay National Park and Preserve-Gustavus Area, Alaska; Hoonah-Angoon Census Area, Alaska; latitude 58.3935064, longitude -135.7329458, datum WGS84 (coordinates determined by a GPS unit)

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--1 to 7 degrees C
Soil moisture control section--dry less than 45 consecutive days in June through October (udic)

Particle-size control section
*Clay content--1 to 3 percent
*Sand content--87 to 95 percent

Oi horizon (where present)
Thickness--0 to 2 cm

C1 horizon
Hue--10YR to 5Y moist or dry
Value--3 to 5 moist, 5 to 7 dry
Chroma--3 to 6 moist or dry
Fine-earth texture--fine sand, sand, very fine sand
Content of clay--1 to 3 percent
Reaction (pH)--7.0 to 8.0
Thickness--5 to 25 cm

C2 horizon
Hue--10YR to 5Y moist or dry
Value--3 to 5 moist, 5 to 7 dry
Chroma--3 to 6 moist or dry
Fine-earth texture--sand, coarse sand, fine sand
Content of clay--1 to 3 percent
Reaction (pH)--7.1 to 8.4
Thickness--4 to 45 cm

C3 horizon
Hue--10YR to 5Y moist or dry
Value--4 or 5 moist, 6 or 7 dry
Chroma--3 to 6 moist or dry
Fine-earth texture--sand, fine sand
Content of clay--1 to 3 percent
Reaction (pH)--7.1 to 8.4
Thickness--50 to 110 cm

Cg horizon
Hue--2.5Y or 5Y moist or dry
Value--4 or 5 moist, 6 or 7 dry
Chroma--1 or 2 moist or dry
Fine-earth texture--fine sand, very fine sand, sand
Content of clay--1 to 3 percent
Reaction (pH)--7.1 to 8.4
Thickness--15 to 50 cm

COMPETING SERIES: None

GEOGRAPHIC SETTING:
Elevation--1 to 20 m
Climate--cool, moist summers; mild, wet winters
Mean annual precipitation--850 to 1850 mm
Mean annual air temperature--1 to 9 degrees C
Frost-free period--90 to 154 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Beartrack--saturation and aquic conditions within 25 cm of soil surface; on adjacent landforms influenced by tides
Murkbay--no aquic conditions within a depth of 150 cm; on similar landforms
Sitakaday--saturation and aquic conditions within 25 cm of soil surface; on adjacent landforms influenced by tides
Strawberry--25 to 50 cm (somewhat poorly drained) to aquic conditions; on similar landforms

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--moderately well drained
Saturated hydraulic conductivity (Ksat)--very high throughout
Saturation--normally saturated below a depth of 50 cm year round

USE AND VEGETATION:
Use--wildlife habitat, recreation
Potential natural vegetation--redwool plantain, American dunegrass, stickystem pearlwort, meadow barley, pea, sedge, starwort

DISTRIBUTION AND EXTENT: Alexander Archipelago-Gulf of Alaska Coast, Alaska; MLRA 220; small extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: WASILLA, ALASKA

SERIES ESTABLISHED: Glacier Bay National Park and Preserve-Gustavus Area, Alaska.

REMARKS:
Diagnostic horizons and other features in this pedon
*Ochric epipedon
*Aquic conditions--zone from 90 to 150 cm
*Reduced matrix--zone from 130 to 150 cm
*Free carbonates--zone from the surface to a depth of 150 cm
*Particle-size control section--zone from 25 to 100 cm

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National Cooperative Soil Survey
U.S.A.