LOCATION MYRICK MOEstablished Series
TAXONOMIC CLASS: Clayey over loamy, smectitic, calcareous, mesic Fluvaquentic Endoaquolls
TYPICAL PEDON: Myrick silty clay - on a level area in a cultivated field. Water table at 32 inches. (Colors are for moist soil unless otherwise stated.)
Ap1--0 to 5 inches; very dark gray (10YR 3/1) silty clay, very dark grayish brown (10YR 3/2) kneaded, grayish brown (10YR 5/2) dry; weak medium subangular blocky structure; friable, sticky; many fine roots; slightly effervescent; mildly alkaline; abrupt smooth boundary.
Ap2--5 to 8 inches; very dark gray (2.5Y 3/1) silty clay, grayish brown (2.5Y 5/1) dry; weak fine granular and subangular blocky structure: firm, sticky; many fine roots; strongly effervescent; mildly alkaline; abrupt smooth boundary.
Ag--8 to 13 inches; very dark gray (2.5Y 3/1) silty clay, grayish brown (2.5Y 5/1) dry; few fine prominent yellowish brown (10YR 5/4) mottles; weak medium subangular blocky structure; firm, sticky; common fine roots; few thin strata of grayish brown (2.5Y 5/2) silt loam and very fine sandy loam; strongly effervescent; mildly alkaline; abrupt smooth boundary. (Combined thickness of the Ap and Ag horizon is 12 to 20 inches.)
2Cg1--13 to 21 inches; stratified grayish brown (2.5Y 5/2) very fine sandy loam; few medium prominent yellowish brown (10YR 5/4) mottles; massive, except for platiness of individual strata; friable, non-sticky; few fine roots; strongly effervescent; mildly alkaline; gradual smooth boundary.
2Cg2--21 to 60 inches; stratified grayish brown (2.5Y 5/2) very fine sandy loam and silt loam; common medium prominent yellowish brown (10YR 5/4) mottles; massive; friable, non-sticky; few fine roots in upper part; yellowish brown (10YR 5/4) stains along strata partings and along root channels; strongly effervescent; mildly alkaline.
TYPE LOCATION: Lafayette County, Missouri; about 4 miles north of Wellington; 1,200 feet east and 2,050 feet south of the northwest corner of sec. 25, T. 51 N., R. 28 W.
RANGE IN CHARACTERISTICS: Depth of the solum and thickness of the mollic epipedon ranges from 12 to 20 inches. The depth to the 2C horizon ranges from 12 to 20 inches. Myrick soils are calcareous throughout and mildly alkaline or moderately alkaline.
The A horizon has hue of 10YR or 2.5Y, value of 2 or 3, and chroma of 1 or 2. It is silty clay loam, silty clay, and less commonly clay with an average clay content of 35 to 50 percent.
The Bg horizon, when present below the mollic epipedon, has hue of 10YR or 2.5Y, value of 4 or 5, and chroma of 1 or 2. It is silty clay loam, silty clay, or clay with an average clay content of 35 to 50 percent.
The 2Cg horizon has hue of 10YR or 2.5Y, value of 4 through 6, and chroma of 1 or 2. It is stratified very fine sandy loam or silt loam. Thin strata of coarser or finer textured material are common.
COMPETING SERIES: These are the Levasy series in the same family and the Blake, Gilliam, Grable, Leta, Onawa, Parkville, Percival, and Waldron series. Levasy soils are formed in thicker clayey deposits. Blake, Grable, Onawa, and Percival soils lack mollic epipedons and Onawa soils generally are formed in thicker clayey deposits. Gilliam soils lack an abrupt textural change. Leta soils have greater than 20 inches of clayey textures in the upper part of the solum. Parkville soils are not saturated with water during the growing season and generally have higher chroma in the loamy deposits. Waldron soils are clayey throughout.
GEOGRAPHIC SETTING: Myrick soils are in depressions on recent flood plains of major streams. The slope gradient is 0 to 2 percent. They formed in clayey sediment 12 to 20 inches thick over loamy textured sediments. The mean annual temperature ranges from 53 to 57 degrees F, and mean annual precipitation ranges from 32 to 40 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gilliam, Haynie, Kenmoor, Leta, Modale, Parkville, Sarpy, Waldron, and Waubonsie soils. Gilliam and Haynie soils formed in loamy alluvium and occur on higher adjacent bottom lands. Kenmoor, Modale, and Waubonsie soils formed in loamy alluvium over clayey alluvium and occur on slightly higher adjacent bottom lands. Leta soils formed in 20 to 40 inches of clayey alluvium and occur on slightly higher adjacent bottom lands. Parkville soils are not as wet and occur on slightly higher adjacent bottom lands. Sarpy soils formed in sandy alluvium and occur next to major streams. Waldron soils formed in thick clayey deposits and occur on higher adjacent bottom lands.
DRAINAGE AND PERMEABILITY: Poorly drained. Runoff is very slow to ponded. Permeability is slow in the clayey deposits and moderate in the loamy deposits.
USE AND VEGETATION: Where drained, areas are cropped to corn, soybeans, and wheat. Other undrained areas are used mostly for hay and pasture. Native vegetation is wetland grasses, willow, and cottonwood trees.
DISTRIBUTION AND EXTENT: West-central Missouri. The soils of this series are not extensive; their total estimated acreage is about 2,500 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana