Crowley soil series

Soil profile of Cw—Crowley silt loam, 0 to 1 percent slopes from Vermillion Parish, Louisiana. (Photo provided by Brandon Waltman, Assistant State Soil Scientist, Louisiana.) The site was sampled as part of a Dynamic Soil Properties Study: MLRA 150A - Dynamic Soil Properties Compare Cropland vs Pastureland for Crowley silt loam.

 

The Crowley Series consists of very deep, somewhat poorly drained, very slowly permeable soils that formed in clayey fluviomarine deposits of the Pleistocene age. (This pedon formed in clayey fluviomarine deposits derived from igneous, metamorphic and sedimentary rock.) These nearly level to very gently sloping soils occur on flat coastal plains terraces. Slope is dominantly less than 1 percent but ranges to 3 percent.

 

TAXONOMIC CLASS: Fine, smectitic, thermic Typic Albaqualfs

 

Detailed Soil Description (soil health sample). Describers Name: Mitch Mouton, Mike Lindsey, Gavin Faulk,

Brandon Waltman:

 

Ap—0 to 11 centimeters (0.0 to 4.3 inches); grayish brown (10YR 5/2) silt loam; weak fine granular structure; very friable; 3.0 very fine roots throughout and 1.0 medium roots throughout and 3.0 fine roots throughout; 1 percent fine faint yellowish red (5YR 4/6), moist, masses of oxidized iron lining pores; fragments.; moist when described; observed in pit,

large or quarry

 

E—11 to 21 centimeters (4.3 to 8.3 inches); light brownish gray (10YR 6/2) silty clay; weak fine subangular blocky parts to weak fine granular structure; very firm; 2.0 fine roots throughout; 5 percent prominent light gray (10YR 7/2), moist, silt coats on all faces of peds; 20 percent fine strong brown (7.5YR 5/6), moist, masses of oxidized iron lining pores; fragments.; moist when described; observed in pit, large or quarry

 

BE—21 to 31 centimeters (8.3 to 12.2 inches); brown (7.5YR 5/2) clay; weak medium subangular blocky parts to weak fine subangular blocky structure; very firm; 0.5 very fine roots throughout and 1.0 fine roots throughout; 5 percent fine brown (7.5YR 4/4), moist, iron-manganese masses in matrix and 10 percent fine black (10YR 2/1), moist, manganese masses in matrix; fragments.; moist when described; observed in pit, large or quarry

 

Btg1—31 to 64 centimeters (12.2 to 25.2 inches); brown (7.5YR 4/2) clay; weak coarse prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 fine roots throughout; 2 percent medium black (7.5YR 2/1), moist, manganese masses and 15 percent medium red (2.5YR 4/8), moist, masses of oxidized iron in matrix; fragments.; moist when described; observed in auger, bucket

 

Btg2—64 to 109 centimeters (25.2 to 42.9 inches); gray (7.5YR 5/1) clay; weak coarse prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 very fine roots throughout; 2 percent medium black (10YR 2/1), moist, manganese masses and 25 percent medium strong brown (7.5YR 5/6), moist, masses of oxidized iron in matrix; fragments.; moist when described; observed in auger, bucket

 

Btg3—109 to 140 centimeters (42.9 to 55.1 inches); gray (2.5Y 6/1) silty clay; moderate coarse prismatic parts to moderate fine subangular blocky structure; firm; 0.5 very fine roots throughout; 1 percent fine black (10YR 2/1), moist, manganese masses in matrix and 40 percent medium yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix; fragments.; moist when described; observed in auger, bucket

 

Btg4—140 to 205 centimeters (55.1 to 80.7 inches); gray (10YR 6/1) silty clay; moderate coarse prismatic parts to moderate fine subangular blocky structure; firm; 25 percent prominent gray (10YR 5/1), moist, silt coats; 5 percent medium black (10YR 2/1), moist, manganese masses in matrix and 30 percent coarse yellowish brown (10YR 5/8), moist, masses of oxidized iron in matrix; fragments.; moist when described; observed in auger, bucket.

 

Done