LOCATION MARINEPARK NY

Established Series
RKS-LR-JTI
01/2014

MARINEPARK SERIES

The Marinepark series consists of very deep moderately well drained soils formed in a thin loamy mantle of human transported material over dredged materials or sandy sediments. They occur on anthropogenic landscapes in and near major urbanized areas of the Northeast. Saturated hydraulic conductivity is moderately high or high in the loamy mantle and high or very high in the sandy substratum. Slopes range from 0 to 15 percent. Mean annual temperature is about 13 degrees C and mean annual precipitation is about 1196 mm.

TAXONOMIC CLASS: Sandy, mixed, mesic Aquic Dystric Eutrudepts

TYPICAL PEDON: Marinepark sandy loam on a 1 percent slope in an urban recreational park. (Colors refer to moist soil unless otherwise noted).

^Au --- 0 to 10 cm; dark brown (7.5YR 3/2) sandy loam; moderate coarse granular and moderate medium granular structure; friable; common medium roots and common fine roots; 1 percent gravel-sized glass fragments and 5 percent gravel; very strongly acid (pH 5); clear smooth boundary. (10 to 27 cm thick.)

^Bwu1 --- 10 to 23 cm; brown (7.5YR 4/4) gravelly sandy loam; moderate medium subangular blocky structure; friable; common medium roots and common fine roots; 1 percent gravel-sized coal combustion by-products, 13 percent gravel and 2 percent cobbles; very strongly acid (pH 5); clear smooth boundary.

^Bwu2 --- 23 to 49 cm; reddish brown (5YR 4/4) gravelly sandy loam; weak medium subangular blocky structure; friable; moderately few medium roots; 1 percent gravel-sized glass fragments, 12 percent gravel and 4 percent natural cobbles; strongly acid (pH 5.2); abrupt smooth boundary. (Combined ^Bw thickness of 20 to 40 cm.)

2^C1 --- 49 to 78 cm; light yellowish brown (2.5Y 6/3) sand; single grain; very friable; common medium roots and moderately few coarse roots; 15 percent (common) fine faint light brownish gray (2.5Y 6/2) iron depletions and 15 percent (common) fine prominent strong brown (7.5YR 5/8) masses of oxidized iron; moderately acid (pH 5.7); abrupt smooth boundary.

2^Cg --- 78 to 134 cm; light brownish gray (2.5Y 6/2) sand; single grain; very friable; very few medium roots and moderately few coarse roots; 30 percent (many) coarse faint gray (2.5Y 6/1) iron depletions and 15 percent (common) coarse prominent strong brown (7.5YR 5/8) masses of oxidized iron; moderately acid (pH 5.8).

2^C2 --- 134 to 155 cm; pale brown (10YR 6/3) sand; single grain; very friable; very few medium roots; 10 percent (common) medium distinct dark yellowish brown (10YR 4/6) masses of oxidized iron and 10 percent (common) medium distinct gray (10YR 6/1) iron depletions; moderately acid (pH 5.8).

2^Cg2 --- 155 to 168 cm; light brownish gray (2.5Y 6/2) sand; single grain; very friable; very few medium roots; 15 percent (common) medium prominent dark yellowish brown (10YR 4/6) masses of oxidized iron and 20 percent (many) medium faint gray (2.5Y 6/1) iron depletions; moderately acid (pH 5.8).

2^Cg3 --- 168 to 196 cm; gray (2.5Y 5/1) sand; single grain; very friable; 15 percent (common) fine prominent dark yellowish brown (10YR 4/6) masses of oxidized iron; moderately acid (pH 5.8).

TYPE LOCATION: Kings County, New York. 350 feet northeast of intersection of Gerritsen Avenue and Cyrus Avenue, 250 feet northwest of home plate on the Gerritsen Ballfield north of Gerritsen Avenue between Cyrus and Seba Avenues. USGS Coney Island, NY topographic quadrangle Latitude 40 degrees 35 minutes, 26.55 seconds N. and Longitude 73 degrees, 55 minutes, 16.44 seconds W. NAD 1983.

RANGE IN CHARACTERISTICS: The thickness of the loamy mantle ranges from 25 to 69 cm. Total fragments (combined natural and artifacts), mainly gravel-sized, range from 0 to 35 percent in the solum and from 0 to 30 percent in substratum. Artifact fragments range from 0 to 10 percent in the loamy solum. Reaction ranges from very strongly acid to slightly acid in the loamy mantle, and from strongly acid to slightly alkaline in the sandy substratum. Some pedons have sea shell fragments in the lower part of the soil.

The ^A horizon has hue of 7.5YR to 2.5Y, value of 2 to 4, and chroma of 1 to 4. Texture is sandy loam, fine sandy loam or loam. It has granular or subangular blocky structure, and the consistence is commonly friable or very friable, but the range includes platy structure and/or firm consistence in compacted areas.

The ^Bw horizon has hue of 5YR to 2.5Y, value of 3 to 5, and chroma of 3 to 6. Redoximorphic features can be found in the lower part of the horizon in some pedons. Texture is sandy loam, fine sandy loam, or loam in the upper part and sandy loam or loamy sand in the lower part. Sandy loam textures do not extend below a depth of 69 centimeters. Structure is commonly subangular blocky and consistence is friable or very friable. Some pedons have an ^AB or ^BA horizon above the ^Bw horizon.

The 2^C or 2C horizon has hue of 10YR or 2.5Y, value of 3 to 7, and chroma of 1 to 4. Texture ranges from loamy fine sand to sand in the fine earth fraction. Some pedons are stratified. This horizon is typically structureless, with very friable or loose consistence. Pockets of loamy fill material similar in properties to the ^Bw horizons can be found in the upper portion of the substratum in some pedons.

COMPETING SERIES: There are no competing series in the same family.

GEOGRAPHIC SETTING: Marinepark soils are on nearly level to strongly sloping modified landforms. These soils formed in a loamy fill mantle over sandy deposits on outwash plains, barrier beaches and islands, or dredged deposits. The loamy material is relatively clean with less than 10 percent of human artifacts and less than 35 percent gravel. Sea shell fragments may be present in the lower sandy part. Slope ranges from 0 to 15 percent. Mean annual precipitation ranges from 1021 to 1325 mm. Mean annual temperature ranges from 8 to 17 degrees C.

GEOGRAPHICALLY ASSOCIATED SOILS: These include the anthropogenic Flatbush, Fortress, Greenbelt, and Verrazano soils; and Riverhead and Windsor soils on nearby landscapes. Flatbush soils are well drained and have a coarse-loamy particle size class. Fortress soils do not have a cambic horizon and formed only in dredge sands. Greenbelt soils are well drained and have more than 100 cm of loamy fill. Riverhead and Windsor soils formed naturally have less than 10 inches of human transported material at the surface.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. Saturated hydraulic conductivity is moderately high or high in the loamy mantle and high or very high in the sandy substratum.

USE AND VEGETATION: Most of these soils are used for recreation and urban development. Vegetation consists of black cherry, black locust, bayberry, poison ivy, ornamental grasses, and mugwort.

DISTRIBUTION AND EXTENT: These soils occur on anthropogenic landscapes in and near major urbanized areas of the Northeast, MLRAs 144A and 149B. The soils of this series are of small extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts

SERIES ESTABLISHED: Kings County, New York, 2014. Series proposed Kings County, New York, 2009.

REMARKS: The series is named for Marine Park in Brooklyn, New York.

Marinepark soils are mapped in the soil survey areas of the Gateway National Recreation Area and the initial survey areas of Kings and Queens Counties, NY. The soils are of minimal extent (less than 1,000 acres), however they are of unique importance to users of the soil surveys.

Marinepark soils often exhibit an irregular decrease in organic carbon with depth however this is a result of anthropogenic filling (deposition) not alluvial deposition; excluding them from the concept of Fluvaquentic Eutrudepts. Proposed revisions to soil taxonomy in ICOMANTH Circular Letter 7 developed for anthropogenic soils will help to clarify this difference.

Diagnostic horizons and other features recognize in the typical pedon include:
1. Ochric epipedon - the zone from the surface to 10 cm (^Au horizon).
2. Cambic horizon - the zone from 10 to 49 cm (^Bwu1 and ^Bwu2 horizons).
3. Aquic Dystric Eutrudepts - base saturation (by NH4OAc) of 60 percent or more in one or more horizons at a depth between 25 and 75 cm from the mineral soil surface; does not have free carbonates within 100 cm of the mineral soil surface; redox depletions with chroma 2 or less within 60 cm and aquic conditions for some time in normal years.

National Cooperative Soil Survey
U.S.A.