Onaqui NEON (ONAQ) Soil Descriptions

A1--0 to 4 centimeters (0.0 to 1.6 inches); brown (10YR 5/3) fine sandy loam, brown (10YR 4/3), moist; 10 percent clay; moderate thin platy parts to weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; many very fine roots and common medium roots and common fine roots; many very fine low-continuity vesicular and many fine low-continuity vesicular pores; strong effervescence; moderately alkaline, pH 8.0, pH indicator solutions; clear smooth boundary. Lab sample # 14N04366

A2--4 to 12 centimeters (1.6 to 4.7 inches); brown (10YR 5/3) fine sandy loam, brown (10YR 4/3), moist; 15 percent clay; weak medium platy parts to weak medium subangular blocky, and weak medium platy parts to weak fine subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; many very fine roots and common medium roots and common fine roots; many very fine moderate-continuity tubular and few fine moderate-continuity tubular pores; strong effervescence; moderately alkaline, pH 8.0, pH indicator solutions; clear wavy boundary. Lab sample # 14N04367

Bw--12 to 66 centimeters (4.7 to 26.0 inches); pale brown (10YR 6/3) loam, brown (10YR 4/3), moist; 21 percent clay; weak medium subangular blocky parts to moderate fine subangular blocky, and weak medium subangular blocky parts to moderate very fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; many very fine roots and few medium roots and few fine roots; many very fine moderate-continuity tubular and common fine moderate-continuity tubular and few coarse moderate-continuity tubular pores; 2 percent nonflat subangular indurated 2 to 75-millimeter mixed rock fragments; violent effervescence; strongly alkaline, pH 8.6, pH indicator solutions; gradual wavy boundary. Lab sample # 14N04368

Bk--66 to 156 centimeters (26.0 to 61.4 inches); yellowish brown (10YR 5/4) loam, dark yellowish brown (10YR 4/4), moist; 20 percent clay; weak medium subangular blocky, and weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; few very fine roots and few medium roots and few fine roots; few very fine moderate-continuity tubular and common fine moderate-continuity tubular and pores; carbonate, finely disseminated in matrix and 1 percent fine pendular strongly cemented carbonate concretions on bottom of rock fragments; 5 percent nonflat subangular indurated 2 to 75-millimeter mixed rock fragments; violent effervescence; very strongly alkaline, pH 9.2, pH indicator solutions; gradual wavy boundary. Lab sample # 14N04369

2CBk1--156 to 165 centimeters (61.4 to 65.0 inches); pale brown (10YR 6/3) gravelly loam, dark yellowish brown (10YR 4/4), moist; 18 percent clay; massive; hard, friable, slightly sticky, slightly plastic; few very fine roots and few fine roots; few very fine moderate-continuity tubular pores; carbonate, finely disseminated in matrix and 1 percent fine pendular strongly cemented carbonate concretions around rock fragments and 1 percent very fine irregular carbonate masses in matrix; 5 percent nonflat subangular indurated 2 to 75-millimeter mixed rock fragments and 15 percent nonflat subangular indurated 75 to 250-millimeter mixed rock fragments; violent effervescence; strongly alkaline, pH 8.8, pH indicator solutions; gradual wavy boundary. Lab sample # 14N04370

2CBk2--165 to 178 centimeters (65.0 to 70.1 inches); pale brown (10YR 6/3) extremely gravelly loam, brown (10YR 5/3), moist; 18 percent clay; moderate fine angular blocky, and moderate medium angular blocky structure; hard, friable, slightly sticky, slightly plastic; few very fine roots and few fine roots; few very fine moderate-continuity tubular pores; carbonate, finely disseminated in matrix and 10 percent fine pendular strongly cemented carbonate concretions around rock fragments and 2 percent very fine irregular carbonate masses in matrix; 5 percent nonflat subangular indurated 75 to 250-millimeter mixed rock fragments and 65 percent nonflat subangular indurated 2 to 75-millimeter mixed rock fragments; violent effervescence; strongly alkaline, pH 9.0, pH indicator solutions; abrupt wavy boundary. Lab sample # 14N04371

2Bkm--178 to 196 centimeters (70.1 to 77.2 inches); very pale brown (10YR 8/2) material, pale brown (10YR 6/3), moist; strongly cemented by carbonates; 5 percent medium pendular strongly cemented carbonate laminae with sharp boundaries at top of horizon and 75 percent very coarse pendular strongly cemented carbonate concretions around rock fragments; 5 percent nonflat subangular indurated 75 to 250-millimeter mixed rock fragments and 65 percent nonflat subangular indurated 2 to 75-millimeter mixed rock fragments; gradual wavy boundary. Lab sample # 14N04372

3CBk3--196 to 200 centimeters (77.2 to 78.7 inches); pale brown (10YR 6/3) extremely gravelly loamy sand, brown (10YR 5/3), moist; 5 percent clay; single grain; soft, very friable, nonsticky, nonplastic; common very fine low-continuity interstitial pores; carbonate, finely disseminated in matrix and 2 percent fine pendular strongly cemented carbonate concretions on bottom of rock fragments and 2 percent very fine irregular carbonate masses in matrix; 5 percent nonflat subangular indurated 75 to 250-millimeter mixed rock fragments and 65 percent nonflat subangular indurated 2 to 75-millimeter mixed rock fragments; violent effervescence; strongly alkaline, pH 8.8, pH indicator solutions. Lab sample # 14N04373