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34 <br /> Establ lshed Se rtes <br /> xev. AJC <br />• 4/77 <br /> SHAVANO SERIES <br /> Tl+e Shavano series ie a member of Che Elne-loamy, mixed (calcareous), meslc family of Us [lc 1'o rrlor[hen[s. <br /> Typically, Sliaveno soils Ica ve light hrovn, very friable, granular, celcareo us A horizons, and <br /> very pale brown, celca re oua, floc sandy clay loam C hart zoos, over hart calcareous sa nds[one e[ <br /> a Jep[h of 26 inches. <br /> T~•plfyfng Pedon: Sl+avano floe sandy clay loam - grassland <br /> (Colors are for Jry so 11 unless oche twice no[eJ.) <br /> AI 0-4"--Light hrovn (]. iYR 6/)) floe sandy clay loam, brown (7.iYx i/7) mots[; mode ra ce Flne <br /> granular structure; soft, very frla6le, slightly s[Ic ky, slightly plastic; calcareous; <br /> moderately alkaline (pH 8.0); clear smooth boundary. (3 to tl lnchus [hick) <br /> AC 4-7"--Very pale bravo (lOYR 7/3) fine sandy clay loam, Il gilt yellovlsh brown (lOYR 6/4) <br /> mo is r, weak fine sub angular hlocky s[ruc[u re; ha rJ, (r1a61c, slightly sticky, slightly <br /> plastic; cal ca ruuus; mole ra [sly alkaline (pll 8.0); graJ ual smooth boundary. (0 l0 5 <br /> Inahca [hick) <br /> Cca 7-26"--Very pale brown (lOYH 7!7) Etna sandy clay loam, light yellowish 6rovn (1UYH 6/4) <br /> mots[; massive; ha rJ, fl rm, slightly sticky, slightly plas[Ic; IU percenc FIaC sanJs[une <br /> f ragmen[a In [he lover 10 Inches; some vls lb le seronJary talc lam carbonate occu n'l ng <br /> as cuncre[Sons; cotta reuua; mode ra [sly alkaline (pll tl.2); ab nip[ wavy boundary. (7 <br /> [0 77 Inches [hick) <br /> R 26-40"--IIazJ calcareous sandstone. <br /> Type Local on: fluntrose Co un [y, Colorado; approximately 750 feet east of tAl corner sec, J, 'f.4RN., <br /> x.lou. <br /> Range In Charade zls CSC3: Depth to unlFo only calcareous material ranges from 0 [0 10 inches. <br /> Uep d[ [o [he 11th LC contact ranges from 20 [0 40 Inches. Gyps wn content of a maJ arLCy of subho rl was <br />• in [he control section ranges from 0 to 1.5 percent by vet gh [, f:xcliau geable aoJl um ranges from <br /> 0 to IS percent In a majority of subhorl zoos of the con [rot sectlun anJ [hero Is nu sub ho rl zoo <br /> as much as 7 Inches [hick above a Jep[h of IS Inches [ha[ exceeds 15 pe rcen[. Cm+J activity ranges <br /> f cow 0 [0 14 milllml[os In must subho rl zoos of [he control section anJ nu suLh urlmn as much as <br /> 7 inches thick a6 owe 15 Inches exweJs 14 ml Lllmhos. Con[ln uous subhorizuns of genetically cunceut ra[eJ <br /> vlslh le secondary calcl um carbonate end/or sulfate does no[ occur In [he control sectlun although <br /> some vts this calcium ca rh on ate anJ/or sulfate occurs Incunsls[ently a[ any Jep[h ur occur uniformly <br /> thruughou[ the profile es a natural feaeure of the paten[ material. The cou[rul section Is usually <br /> heavy sandy loam ur aanJy clay loam, but clay ranges from 1tl [0 75 pe rcen[, stl[ Crom 5 [0 3U <br /> percenc, anJ aunt from 40 m 15 pu rcen[ v(ch inoro than 7i percenc being fine or coarser sunJ. <br /> Nock (ragmen [s range Crum 0 to 15 pe rcen[ anJ arc mainly 1/2 ru 10 In Jics in Jiame[c r. Subho ri was <br /> teJJer than 7.iYH ucc ur In some pe Juns Lu[ a maJor par[ u( [he control section above the bedrock <br /> has hoc of 7. SYH ur yelluvcr. The d horizon Ims hue of SY through 7.iYx, value of 5 [h rough tl <br /> Jry, 7 through 7 mo is[, anJ chroma of 1 through 4. 1[ ranges Erom mllJly alkullnu [o strongly <br /> alkal lne (I:5 Jllu[lon unLuffe reJ organ lc Jye). 'fhe C horizon normally has hue o[ iY through <br /> 7.SYH, 6u[ subhorizuns reJJer than 7. iYx occur In some peduns. I[ is mode ra [sly or strongly alkaline <br /> (1:5 all u[lon unbuffe reJ organic Jye ). Calcium ca rb ona[e eq ulva ten[ of [he floe earth ranges <br /> E rum less than 1 [o about l0 pu rcen [, but vls ib le wrbona[u is nu[ roncen[ra [eJ In ge ne[ic hurl zoos. <br /> Cu mpecing Sc tics and [heir Dlf fe ren[Iae: These are [he EI Rancho, Elm, Ne villa, 1'oj ouq ue, Slxmilc, <br /> anJ 'fhedal unJ series. All of these Boils lack ]i[hlc wntac[s al a Jeplh of 4U inches or less. <br /> EI Honcho, Nevillu, anJ 1'uj oaq ue soils ha vc hoc of SYH or reJJer L[ a muj ur([y u1 subhorizuns. <br /> Eim, Slxmllc anJ '1'h edalunJ soils ha vu leas than 75 portent find or coarser sanJ. <br /> Sec[ln g: The Shavano soils arc on gently [u steeply slop log hll ls, rlJ gas, anJ mesa tops. Slopes <br /> typically ran gu from about ? [0 4U pe rcen[ ur more. The soils fu rmeJ iu moderately thin, calc.ueu us, <br /> muJium to mule ru[ely fLm cexcu reJ ma tc riots wca[hc reJ from sanJa[one and sonJy shale. A[ [hu <br /> type location the mean ann uul precipi[a[lun Is about 10 inches with peak pe rloJs of precipi[a[ion <br /> occurring In [he spring unJ early summer man ehs. fie an annual temps ra[uro is 4tl°F. auJ mean summer <br /> tempt rotate is 69°f. <br /> P rLnclpal AssuclareJ Soils: These arc [he Lazaar col is anJ the competing 'I'h eJal and soils. Ldzear <br /> culls have LeJ rock at Je p[hs of 10 [0 20 inches. <br /> <br />