LOCATION MOCAREY TX

Established Series
ELG-GWC-KBH-AKS
07/2019

MOCAREY SERIES

The Mocarey series consists of very deep, moderately well drained, moderately slow permeable soils. These nearly level soils formed in loamy fluviomarine deposits of the Beaumont Formation. Slope ranges from 0 to 1 percent. Mean annual air temperature is about 20.6 degrees C (69 degrees F), and mean annual precipitation is about 1397 mm (55 in).

TAXONOMIC CLASS: Fine-silty, siliceous, superactive, hyperthermic Oxyaquic Argiudolls

TYPICAL PEDON: Mocarey loam in an areas of Mocarey-Yeaton complex, 0 to 1 percent slopes- pasture.(Colors are for moist soil unless otherwise stated.)

Ap--0 to 20 cm, (0 to 8 in); very dark gray (10YR 3/1) loam; weak medium subangular blocky structure, and weak fine subangular blocky structure; firm; common and medium and few coarse roots throughout; few fine tubular and and few medium interstitial pores; 1 percent fine worm casts; slightly alkaline; clear wavy boundary. (combined thickness of the Ap and A horizons is 18 to 41 cm [7 to 16 in])

A--20 to 30 cm, (8 to 12 in); very dark gray (10YR 3/1) loam; moderate fine and medium subangular blocky structure; firm; few fine and medium roots; few fine and medium tubular pores; 1 percent fine spherical black (10YR 2/1) iron-manganese nodules; slightly alkaline; gradual wavy boundary.

Bw--30 to 46 cm, (12 to 18 in); dark gray (10YR 4/1) loam; weak fine and medium subangular blocky structure; firm; few fine and medium roots throughout; few fine and medium tubular pores; 1 percent fine spherical black (10YR 2/1) iron-manganese nodules; 1 percent fine carbonate nodules; 1 percent fine worm casts; slightly alkaline; gradual smooth boundary. (11 to 44 cm [4 to 17 in] thick)

Btk1--46 to 61 cm, (18 to 24 in); gray (10YR 5/1) loam; weak fine subangular blocky structure; firm; few fine and medium roots throughout; few fine tubular and medium tubular pores; 6 percent fine and 5 percent medium and 1 percent coarse carbonate concretions; 1 percent fine worm casts; few masses of dark gray (10YR 4/1) material in old root channels; moderately alkaline; clear smooth boundary. (combined thickness of the Bk horizons is 70 to 122 cm [28 to 48 in])

Btk2--61 to 94 cm, (24 to 37 in); gray (10YR 5/1) clay loam; moderate medium prismatic structure parts to weak fine subangular blocky; firm; few fine roots throughout; few fine and medium tubular pores; 2 percent coarse prominent brownish yellow (10YR 6/6) masses of oxidized iron with sharp boundaries in matrix; 5 percent medium prominent brownish yellow (10YR 6/6) masses of oxidized iron with sharp boundaries lining pores; 1 percent fine carbonate masses; 15 percent medium carbonate nodules; few masses of light brownish gray (10YR 6/2) material filling old root channels; moderately alkaline; clear smooth boundary.

Btk3--94 to 112 cm, (37 to 44 in); gray (10YR 6/1) loam; moderate medium prismatic structure parts to weak fine subangular blocky; firm; few fine roots throughout; few fine and medium tubular pores; 1 percent distinct dark gray (10YR 4/1) organic stains on vertical faces of peds; 2 percent coarse prominent brownish yellow (10YR 6/6) masses of oxidized iron with sharp boundaries in matrix; 8 percent medium prominent brownish yellow (10YR 6/6) masses of oxidized iron with sharp boundaries lining pores; 6 percent fine carbonate concretions and 2 percent medium carbonate concretions; moderately alkaline; clear wavy boundary.

Btk4--112 to 168 cm, (44 to 66 in); 40 percent gray (10YR 6/1) and 40 percent gray (10YR 5/1) clay loam; moderate medium prismatic structure parts to weak medium subangular blocky; firm; few fine roots throughout; few fine and medium tubular pores; 1 percent distinct gray (10YR 5/1) organic stains on vertical faces of peds; 1 percent fine spherical black (10YR 2/1) iron-manganese nodules; 2 percent coarse prominent brownish yellow (10YR 6/8) masses of oxidized iron with sharp boundaries in matrix; 8 percent medium prominent brownish yellow (10YR 6/6) masses of oxidized iron with sharp boundaries lining pores; 6 percent fine, 2 percent medium, and 1 percent coarse carbonate concretions; 1 percent fine worm casts; slightly alkaline; gradual wavy boundary.

Btkg--168 to 203 cm, (66 to 80 in); light gray (10YR 7/1) clay loam; moderate coarse prismatic structure parts to weak medium subangular blocky; firm; few fine and medium tubular pores; 1 percent distinct gray (10YR 6/1) organic stains on vertical faces of peds; 1 percent fine spherical black (10YR 2/1) iron-manganese nodules; 2 percent coarse prominent brownish yellow (10YR 6/8) masses of oxidized iron with sharp boundaries in matrix and 5 percent medium prominent brownish yellow (10YR 6/6) masses of oxidized iron with sharp boundaries lining pores; 3 percent fine threadlike carbonate masses on vertical faces of peds; 1 percent coarse carbonate concretions; slightly alkaline.

TYPE LOCATION:

Liberty County, Texas; from the intersection of US Highway 90 and Texas Highway 146 in Dayton, 5.5 miles south on Texas Highway 146 and 300 feet west in cropland
USGS topographic quadrangle: Monroe City
Latitude: 29 degrees 57 minutes 57.80 seconds N
Longitude: 94 degrees 54 minutes 27.30 seconds W

Decimal Degrees
Latitude:
Longitude:
Datum: WGS84

UTM Easting:
UTM Northing
UTM Zone:15

RANGE IN CHARACTERISTICS:
Soil Moisture: A udic soil moisture regime. The soil moisture control section is moist in some or all parts for more than 275 days in normal years. The summer months are the driest, while fall through spring months are the wettest months.

Mean annual soil temperature: 21.7 to 22.2 degrees C (71 to 72 degrees F)

Particle-size control section (weighted average)
Clay content: 20 to 30 percent

Ap and A Horizons
Hue: 10YR or 2.5Y
Value: 2 or 3
Chroma: 1 or 2
Texture: fine sandy loam, very fine sandy loam, loam or silt loam
Clay content: 6 to 27 percent
Redox concentrations: amount-0 to 2 percent, location-lining pores, shades-brown
Iron-manganese concentrations: amount-0 to 2 percent, kind-nodules
Calcium carbonate equivalent: 0 to 5 percent
Electrical Conductivity (mmhos/cm): 0 to 2
Sodium Adsorption Ratio: 0 to 4
Reaction (pH): slightly acid to slightly alkaline (pH 6.1 to 7.8)

Bw Horizon
Hue: 10YR or 2.5Y
Value: 3 to 5
Chroma: 1 or 2
Texture: fine sandy loam, very fine sandy loam, loam or clay loam
Clay content: 18 to 34 percent
Redox concentrations: amount-0 to 5 percent, location-lining pores, shades-brown or yellow
Iron-manganese concentrations: amount-0 to 2 percent, kind-nodules
Calcium carbonate equivalent: 0 to 5 percent
Electrical Conductivity (mmhos/cm): 0 to 2
Sodium Adsorption Ratio: 0 to 4
Reaction: neutral to moderately alkaline (pH 6.6 to 8.4)

Bk Horizons
Hue: 10YR or 2.5Y
Value: 4 to7
Chroma: 1 or 2
Texture: loam, silt loam, silty clay loam, or clay loam
Clay content: 20 to 34 percent
Redox concentrations: amount-2 to 15 percent, location-lining pores, shades-brown, red or yellow
Redox depletions: amount-0 to 8 percent, location-adjacent to redox concentrations, shades-gray
Iron-manganese concentrations: amount-0 to 2 percent, kind-nodules
Calcium carbonate equivalent: 5 to 30 percent
Electrical Conductivity (mmhos/cm): 0 to 2
Sodium Adsorption Ratio: 0 to 4
Reaction: neutral to strongly alkaline (pH 6.6 to 9.0)

Btk Horizons
Hue: 10YR or 2.5Y
Value: 4 to7
Chroma: 1 or 2
Texture: loam, silt loam, silty clay loam, or clay loam
Clay content: 20 to 34 percent
Redox concentrations: amount-2 to 15 percent, location-lining pores, shades-brown, red or yellow
Redox depletions: amount-0 to 8 percent, location-adjacent to redox concentrations, shades-gray
Iron-manganese concentrations: amount-0 to 2 percent, kind-nodules
Calcium carbonate equivalent: 5 to 30 percent
Electrical Conductivity (mmhos/cm): 0 to 2
Sodium Adsorption Ratio: 0 to 4
Reaction: neutral to strongly alkaline (pH 6.6 to 9.0)

COMPETING SERIES:

There are no soils in the same series. Similar soils are the Algoa (TX), Edgerly (LA), Jeanerette (LA), Morey (TX), and Meaton (TX) series.
Algoa soils: occur on adjacent pimple mound geomorphic positions
Edgerly and Jeanerette soils: have aquic conditions
Morey and Meaton soils: have less calcium carbonate equivalent in the Btk horizons

GEOGRAPHIC SETTING:
Parent material: loamy fluviomarine deposits derived from igneous, metamorphic and sedimentary rock of the Beaumont Formation of Pleistocene age
Landscape: flat coastal plains
Landform: flats
Slope: 0 to 1 percent
Mean annual air temperature range: 20.0 to 22.2 degrees C (68 to 72 degrees F)
Mean annual precipitation range: 1219 to 1473 mm (48 to 58 in)
Precipitation Pattern: Rainfall is fairly uniform throughout the year with slight peaks in the Fall and Spring months.
Frost-free period: 270 to 300 days
Elevation: 3 to 30.5 m (10 to 100 ft)

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Algoa, Aris (TX), Bernard (TX), Labelle (TX), Leton (TX), Morey, and Verland (TX) soils.

Algoa soils: occur adjacent to flats on pimple mounds.
Aris and Leton soils: occur in lower positions on the landscape
Bernard, Labelle and Verland soils: contain more than 35 percent clay in the particle size control section
Morey soils: occur on a similar position on the landscapes, but are more acidic in the Btk horizons

DRAINAGE AND PERMEABILITY:
Drainage class: moderately well drained
Permeability: moderately slow
Runoff: low
These soils remain saturated from 46 to 100 cm (18 to 40 in) from the soil surface from January to March in normal years and from 150 to 203 cm (59 to 80 in) during the same period

USE AND VEGETATION:

Used mainly for pasture and range. A few areas are used for field crops and truck crops. The native vegetation is primarily a mixture of Andropogon and Paspalum species with some sedges.
Ecological sites assigned to phases and components of this series are listed below. Current ecological site assignments are in Web Soil Survey. Components of this series include the following ecological sites: Loamy Prairie

DISTRIBUTION AND EXTENT:
General area: Gulf Coast Prairies of southeast Texas
Land Resource Region: T- (Atlantic and Gulf Coast Lowland Forest and Crop Region)
Major Land Resource Area: 150A- Gulf Coast Prairies
Extent: moderate

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas

SERIES ESTABLISHED: Galveston County, Texas; 1985.

REMARKS: These soils were formerly included with Addicks, Clodine, and Morey soils. Classification has been changed to reflect an argillic horizon found in the field and documented in the laboratory.

Diagnostic horizons and features recognized in this pedon are:
Particle size control section: 61 to 111 cm (12 to 32 in). (Btk1 and Btk2 horizons)

Mollic epipedon -0 to 30 cm (0 to 12 in) (Ap and A horizons)
Argillic horizons- 61 cm to 203 cm (24 to 80 in) (Btk horizons)

Additional Comments: Fine-silty family and CEC/Clay class are supported by lab data.

ADDITIONAL DATA: TAMU data from type location on pedon S83TX-291-04 and on pedons 81TX167004 and S78TX167002

Taxonomic Version: Keys to Soil Taxonomy, Twelfth Edition, 2014

National Cooperative Soil Survey
U.S.A.