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190 Soil Survey
<br /> 6. Capay clay loam, 0 to 2 percent slopes, is outside moderately alkaline; clear wavy boundary.
<br /> the range of the series because it has fine strata of silty Bk3-50 to 62 inches; light yellowish brown (10YR 6/4)
<br /> clay loam and clay loam below a depth of 20 inches. clay loam, yellowish brown (10YR 5/4) moist; weak
<br /> ` This difference, however, does not significantly affect medium angular blocky structure; hard, firm, sticky
<br /> the use or management of the soil. and plastic; few very fine roots; common very fine
<br /> tubular and interstitial pores; few thin clay films
<br /> ` Carbona Series bridging mineral grains; violently effervescent;
<br /> common fine soft masses of lime; 3 percent gravel;
<br /> The Carbona series consists of well drained soils on moderately alkaline.
<br /> uplifted, dissected terraces. These soils are deep or
<br /> very deep. They formed in alluvium derived from mixed Soft sandstone is at a depth of 40 to 60 inches in
<br /> rock sources. Slope ranges from 2 to 50 percent. some pedons. The content of gravel is 0 to 15 percent.
<br /> Soils of the Carbona series are fine, montmorillonitic, The A horizon has color of 7.5YR 5/2 or 10YR 4/1,
<br /> ` thermic Vertic Haploxerolls. 4/2, 5/1, 5/2, or 5/3. When moist, it has color of 7.5YR
<br /> Typical pedon of Carbona clay loam, 2 to 8 percent 3/2 or 10YR 3/1, 3/2, or 3/3. It is clay loam or clay.
<br /> slopes; 1,100 feet north and 300 feet west of the Reaction is mildly alkaline or moderately alkaline.
<br /> southeast corner of sec. 28, T. 3 S., R. 5 E., Tracy The Bk horizon has color of 10YR 6/3, 6/4, or 7/4.
<br /> quadrangle: When moist, it has color of 10YR 5/3 or 5/4. It is clay
<br /> Ap-0 to 6 inches; dark gray (10YR 4/1) clay loam, very loam or clay.
<br /> ` dark gray (10YR 3/1) moist; moderate medium Chuloak Series
<br /> subangular blocky structure; very hard, firm, sticky
<br /> and plastic; common very fine roots; many very fine The Chuloak series consists of moderately well
<br /> tubular and interstitial pores; 6 percent gravel; drained soils on low alluvial fans. These soils are very
<br /> moderately alkaline; abrupt wavy boundary. deep. They formed in alluvium derived from granitic
<br /> A1-6 to 17 inches; dark grayish brown (10YR 4/2) rock sources. Slope ranges from 0 to 2 percent.
<br /> clay, very dark grayish brown (10YR 3/2) moist; Soils of the Chuloak series are fine-loamy, mixed,
<br /> 6. weak coarse subangular blocky structure; very hard, thermic Typic Argixerolls.
<br /> firm, sticky and plastic; common very fine roots; Typical pedon of Chuloak coarse sandy loam, 0 to 2
<br /> many very fine tubular and interstitial pores; 6 percent slopes; 2,450 feet north and 500 feet west of
<br /> L percent gravel; moderately alkaline; gradual wavy the southeast corner of sec. 14, T. 2 S., R. 8 E., Avena
<br /> boundary. quadrangle:
<br /> A2-17 to 25 inches; dark grayish brown (10YR 4/2)
<br /> ` clay, very dark grayish brown (10YR 3/2) moist; Ap-0 to 11 inches; grayish brown (10YR 5/2) coarse
<br /> moderate medium angular blocky structure; very sandy loam, very dark gray (10YR 3/1) moist; weak
<br /> hard, firm, sticky and plastic; common very fine medium subangular blocky structure; hard, very
<br /> roots; common very fine tubular and interstitial friable, slightly sticky and slightly plastic; common
<br /> pores; 6 percent gravel; moderately alkaline; clear very fine, fine, and medium roots; common very fine
<br /> wavy boundary. interstitial and tubular pores; 2 percent gravel;
<br /> Bk1-25 to 36 inches; pale brown (10YR 6/3) clay moderately acid; clear smooth boundary.
<br /> ` loam, brown (10YR 5/3) moist; weak coarse angular A-11 to 19 inches; grayish brown (10YR 5/2) coarse
<br /> blocky structure; hard, firm, sticky and plastic; sandy loam, very dark grayish brown (10YR 3/2)
<br /> common very fine roots; many very fine tubular and moist; weak coarse subangular blocky structure;
<br /> interstitial pores; few krotovinas 50 to 100 hard, friable, slightly sticky and slightly plastic;
<br /> 6. millimeters in diameter; violently effervescent; common very fine and fine roots; common very fine
<br /> common fine soft masses of lime; 6 percent gravel; interstitial and tubular pores; slightly acid; clear
<br /> moderately alkaline; gradual wavy boundary. wavy boundary.
<br /> Bk2-36 to 50 inches; light yellowish brown (10YR 6/4) Bt-19 to 44 inches; brown (10YR 5/3) sandy clay
<br /> clay loam, yellowish brown (10YR 5/4) moist; weak loam, dark brown (10YR 4/3) moist; moderate
<br /> coarse angular blocky structure; hard, firm, sticky coarse subangular blocky structure; very hard, firm,
<br /> and plastic; common very fine roots; many very fine sticky and plastic; few very fine and fine roots; few
<br /> tubular and interstitial pores; few krotovinas 50 to very fine interstitial pores; few thin clay films on
<br /> 100 millimeters in diameter; violently effervescent; faces of peds and bridging sand grains; slightly
<br /> common fine soft masses of lime; 6 percent gravel; acid; clear wavy boundary.
<br /> L
<br /> 6.
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