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- 35-Bolean-Nisconlith silt loam complex270 acresBolean-Nisconlith silty clay loam complex 173 "Bolean-Nisconlith clay loam complex 108 "Bolean-Nisconlith loam (calcareous phase)complex 150 "Bolean-Nisconlith silt loam (calcareous phase)oomplex 39 "Bolean-Nisconlith silty clay loam (calcareous phase)complex 74 '~1,880 acresThe parent material is composed of medium to moderately fine texturedriver and stream alluvium . The deposits are micaceous and stoneand-gravel free . Surface and subsoil textures are loam, clay loam,silt loam and silty clay loam . Inter-strata of fine sandy loam andsandy loam occur . There are coarse or fine sands at depths . Theparent material is high in carbonates and the profiles are calcareous .The Bolean series is classified as a calcareous phase of the MullRegosol subgroup . The soils are moderately well drained, and weaklymottled at depths below 12 to 18 inches . The total acreage is cultivated. The native vegetation was deciduous and similar to that of theFalkland and Rumball soils . A profile of Bolean silt loam under cultivationwas described as follows :HorizonDepthInchesDescriptionApk 0 - 6 Grayish-brown (2 .5Y 5/2, dry) or very dark grayishbrown (2 .5Y 3/2, moist) silt loam . Moderate,medium subangular blocky structure . Slightly hardwhen dry . Friable when moist . Roots common . pH 7 .9 .Abrupt boundary :Ck 6 -12 Light brownish gray (2 .5Y 6/2, dry) or grayish-brownto dark grayish brown (2 .5Y 4 .5/2, moist) siltyclay loam . Moderate, medium subangular blockystructure . Slightly hard when dry . Friable whenmoist . Roots common . Strongly calcareous . pH 8 .3 .Clear boundary :IICgj 12 -19 Grayish-brown to light olive brown (2 .5Y 5/3, dry)or dark grayish brown to olive-brown (2 .5Y 4/3,moist) sandy loam . Weak, subangular blocky structure. Soft when dry . Friable when moist . A few,faint mottles . Occasional roots, Calcareous .pH 8 .2 .Gradual boundary :Cgj 19 + Light-gray to light brownish gray (2 .5Y 6 .5/2, dry)nr dark grayish brown to olive-brown ~(2 .5Y 4/3,moist) silt loam . Massive . Friable when moist .Common, distinct mottles . Occasional roots inupper part . Calcareous . pH 8 .4 .