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i ~ <br />fib' SOIL SURVEY SIRICS, N0. 31 <br />Q~a-15 La 90 inches, vm'r pale Lro\an (10513 7/3) loam, pale <br />Lrowu (7 bTIt G/3) when moist; massive; U:u'0 \chen <br />dry, friable vrUcn moist; G to ]0 pm'cenl ern gel; <br />vet •r strongly 1•:dca remt5; sl rang or modw:de C:1 <br />Uurizon wiCL risilJe calcium ea rLunute in Guely <br />di tided foruu anfl an swan concretimts; gt ndual, <br />wucp Lmwd:u~)'. <br />G-4(I Lo GO inches, liLthL Urowat (5.5TIt. G/4) IiuhL loam, <br />6ro\vu (7. ;1'lt 5/1) when moist; massive; UarU <br />\\'h CII dl'}', f]'YIb]e 1rhLlt wUipL; sLL'oaglp Ca1C:1I'eOnS; <br />]L•ks \'151111L :LCC'n]1t11IJ LNd ea lcium carLmmts LUvu iu <br />Lhe Gca horizon. <br />The thickness of the solmii Doer the C horizon ran~~es <br />from aLunL 10 inches Lo 26 inches. 'i•he torture of the <br />suri:acr; layer ranges fiom sandy loam or Joam contain- <br />]n<~ sand to heavy ]oaa7i}' sand. 1'he Lext.ure of Ll1e suL- <br />su~ ranges frond ]o:uu or light clay loan] to heavy sandy <br />lo;wn. <br />•rranr stools <br />'1'11is a;ries consists o1' slmdy, model.'Llt;ly deep Brown <br />sails. These soils developed in residuum from fine-grained <br />smnr]stune and siltstone of the Laramie and Fog Bills <br />formatiats. The 'T'erry soils nraliped in this survey area <br />are genet,a]1,y ]il:e the nioc]al soils of the se]•ies. <br />The Tert~~ soils occur on uplands. The slope range is <br />5 Lo 20 percent. The plant cover consists mainly of <br />grasses, such as sand bluestem, sandreed, mtd little blue- <br />St Clil. <br />'Phesc Soils are not. so deep ns Lhe Vebar soils. The} <br />have a lighter colm•ed surface ]aper than the ~/char soils, <br />gold they have calciwri carbonate horizons, which the <br />\/char soils lack. They are coarser featured than the Ulm <br />soils altd have a less well defined structure in L.hc B2 <br />1701'1Z017. <br />Profile of Terl.}~ sand}~ loam in an area. of native grass- <br />land, appro~imat.ely 35U feel. south and 50 feet west: of <br />Che I~TJ;. corner of dle 51;7/1 of sec. 10, T. 10 S., P. 5S 1',T.: <br />A1--0 La 4 inches, grayish Uroww (70SI2 512) sandy loam. <br />darlr grayish Uro\rv (^_.5S 9/2j when Luoisl; uwder- <br />ate, rery Gne, grmwlar structure; soft w'UCU drY, <br />rery friable n'Ucu wOtsL; nOllealEa l'e0a5: C'If'a ]', <br />swaotU boundary. <br />IIl-~ l0 7 Ltchas, light olive-Drown (?.LT 5/3) Ueavy sn ndy <br />loam, olive bromn (2 S 4731 when moist; weal: to <br />wodm'ale, medium. subaugular Ulochy sLrucLure: <br />sli,^Ut1y Uard Ivhev dt;v, rerr friaUle \chen motet: <br />few, thin, patchy clap films rru UoLU Uorizonta] and <br />rerl.ical facet of Use soil aggregates; umtcalcareous ~. <br />clear, smooCU boundat;c. <br />II2t-i Yo lb inches, ]igUL olive Urow'n (2.55 513) light savdp <br />c]nS loam, olive Urowu (3.51 9/3) when moist.; <br />wrote, medium, prismatic sU'u cCm'e UL'eah ing to wod- <br />erate, medium, submlgular Ulocl:p; vm'p Uard when <br />&'r, friable \chen moist: moor, 1Uin, patchy clay <br />fihos on Uolll Uorizontal and vertical fares of IUp <br />soil aggregates; weakly calcareous: gradual, wary <br />boundary. <br />P.3ca-1:1 to 23 inrUrs, light mire-Um\vn (2.aY 5B) sandy <br />loam. olive brown (2 ~S 913) when moist: weak. <br />cam'se, Prismatic sGvcl.ure In'eaking to weal: Lo mod- <br />erate. cnmse, suUangnlar Ulorl:,r; vw'y hm'd Ichrn <br />dry, friable \rh~n umicL tow, L.hin. patchy clay Gluts <br />on both hm'izavtal and cerCical faces of the soil <br />aggrega Lec: rulcareou5: Gradual, wary Umutda rp. <br />(;ra-33 fo 3f inches, lic6( mice-brown (2.SY :r/3) sandy <br />sou m. olive Uro\rn (2.5Y 4/3) when moist; massive; <br />hard \chen drS. very friaUle when moist; strongly <br />calcareous: gradual. wavy Uomtdat;r. <br />R-3G Le 93 inches. partly weatUered, soft snndsimte: <br />eaten grans. <br />The. color of the surface layer raalnes from binw'n to <br />grayish brown. The texture of Lhe A horizon ranges from <br />sandy ]Data to heavy ]onn7y lhle sand, aald the thicklles <br />of that. huriwn ran~~es frmn 3 to 6 inches. 'Phc IxsLure c <br />l.Le 133t horizon r,uhes from light like sandy clay tool <br />to heavy line sandy ]atoll. '1'hc thir:kness of that horizo <br />range, 11an G Lo 10 inches. The Lhicliness of Lhe solid <br />ranges i'rail 20 Lo ;S6 illchts. 1'he sohun becomes sha.l <br />lover and son7etvliat lighter textured as the slope gradien <br />I1lcreaSCS. <br />TRUCATON SE[tl li5 <br />'19,is series consists of well-drained, modern.tt;ly coarse <br />textured UhesLnuL soils. These soils developed in arkosic <br />cotton sand, probably re++'orl:ed alluvium and outmost <br />derived from the lla+vson formation. In most plaua: <br />LLese soils have a dark-colored A horizon and a +veal <br />Lexl.m•a.l B horizon. Normally they aa•e nalealcareous <br />but i.hey aa•e s)i(;htly calcareous in places. <br />The slope range is 1 to 20 percent. The native vegeta <br />lion is maaniy sand bluestem, sanrh'eed, and big blue <br />stem, but: bloc. grama a.nd little bluestem also ;;row on <br />these soils. <br />1'he '1'1'aC1iLOll soils have a. textw'a] B horizon, which <br />the Blal.-eland soils lack. The TruckLOn soils are coarser <br />textured than Lhe Bresser soils and have weaker structure. <br />in their B`~L horizon. <br />Profile of Truclaon sandy loam in an area of native. <br />grassland, approximately 1,000 feel south of the Nl'1'. <br />corner of the ATBr/4 of sec. 12, T. 9 S., R. 56 VS'.: <br />All-0 Lo 4 inches, grayish-Ucown (lOTR 512) sandy loam, <br />rerS dart: graSisU Urowu (lOTR 3/2) when waist: <br />weal, fine, subaugular Ulocl:y structure Urealciug Lo <br />verS One, gravutat or single grain; soft wUeu dry, <br />very friable when waist; uoucalcareous; clear, <br />smootU Uouudary. <br />AS2-4 [o G inches, dark grayish-broom (lOTR 4/?) sandy <br />loam, cet•S dart- grayisU Urowu (lOTR 3/2) wUeu <br />waist; creak, five, subaugular UIOCL-y s[rucLUre Ureal:- <br />iug to woderate, fine, granular; sligbtls hard \chen <br />dry, rery fi'iaUle when woisc; voucalca rvous; clear, <br />swootU Uouudary. <br />Bl-G Co 9 inches, grayish-brown (IOSR 512) sandy loam, <br />dart: Urowu (1OT13 3/3) wUeu waist: woderate, rery <br />COatSE, pr'isw atlC Stl'nCCnt'n hiealiing LO wodera Le, <br />medium, subaugular ULOCLcy; eery hard mhcu dry, <br />friaUle wUeu woisc; YUiu, patchy clay films ou UoLU <br />horizontal and vertical faces of ibe soil aggregates; <br />voncalcarcous: gradual, swooCU boundary. <br />B^_C-9 l0 21 inches, grapisU-Urowu (lOTR 5/2). sandy clay <br />loam, dart: Urowu (lOSR 313) n'Uen moisC: moder- <br />ate, rery coarse, prismatic structure Urcahiug Lo <br />Irealc, eery coarse, subaugular Ulocl:y; rery Uard <br />when dry, friable vrheu moist; 1Ulu, patchy clap <br />Glens on UaLU Uorizontal and cerCical faces of the <br />soil aggregalcs; uoncalcnreous; gradual, smooLU <br />Uouudary. <br />]13-^_I Lo 31 inches, ]igUf. olive-Urowu (2.ST 513) sandy <br />loam, alive Uroe'u (2.DY 4/3) \chen moist; \veal:, <br />coarse, subongular bloc]s,r sCructure; hm'd \vUeu dry, <br />rery triable \chen moi;:L; fltin, patchy clay films, <br />principally on Lhe vm'Lical faces of LUe soil aggre- <br />gates; nmtcalew'eous; diffuse. swoosh Uouvda L;y. <br />(~31 Lo GO inches. ]igUt yellowish-bromn (2.55 G/3) ]Damp <br />sand, grayish Urmrn (3.5T 5/^) \chen woisc; mas- <br />sive; hard \chen dry, rery friable when moist; <br />voncalcareous. <br />The. Texture of the surface layer ranges from sandy <br />loam to loamy sand. The thickness of that horizon ranses <br />from 4 to S inches. The texture of the B2C horizon ranges <br />fi•om sandy loam Co sandy clay loam. The thickness of <br />that horizon ranges from 4 Lo 14 inches. The consistence <br />is hard or very hard when dry and friable or firm when <br />moist. <br />