SOIL SURVEY

-37-Table 3 . An outline of the local (mineral) landform classification used in thi sreport and on the soil maps (exerpted from Fulton et at . 1974) .SURFACE FORMCOMPOSITION AND GENESI SPoorly sorted sediments Well sorted sands, silts Well sorted gravels Well to poorly sorted boulders Undifferentiated sediment sdeposited directly from or clays deposited in to clays deposited to clays deposited of the base where mode of depositio nglacial ice still, fresh-water by running water of slopes through gravity flow is complex or unknow n(Morainal) (Lacustrine) (Fluvial) (Colluvial) (Undifferentiated )Generally flat, even surface LI - level lacustrine Fl - level fluvia llacking irregularities . MI - level morainal G UI - level undifferentiatedSlopes less than 3% .L G- l level glaciolacustrine F - level glaciofluvialGenerally a smooth ,irregular surface withbroad, shallow topographic Mu - undulating morainallows and broad, low highs .Slopes usually from 2 to 5% .Lu - undulating lacustrine Fu - undulating fluvia lLG - undulatingF G - undulatin g° glaciolacustrine ° glaciofluvialUu - undulatingundifferentiatedGenerally a broken ,irregular surface wit hdistinct knobs or moundsand depressions . Slopesgenerally from 5 to 30%but may be lower .Mh - hummocky morainal LC}, - hummocky FG - hummocky Ch - hummocky colluvial Uh - hummockyglaciolacustrine glaciofluvial undifferentiatedGenerally a smooth ,regular surface with broodtopographic lows, long side Mm - rolling moraina lslopes and broad topographi chighs . Slopes from 5 to 30% .LG - rolling F G - rolling Um - rollingglaciolacustrinem glaciofluvial undifferentiatedGenerally linear, paralle lor intersecting pattern o fslopes, surfaces generally Mr - ridged morainal L G- ridged FG- ridged Cr - ridged colluvial Ur - ridge dsmooth . Slopes often from r glaciolacustrine r glaciofluvial undifferentiated5 to 30% but may be lower .Generally flat surfac ewith deep, well definedcircular depressions .Slopes on flats generall yless than 3% but 5 to30% in depressions .Mp - pitted morainal L G - pitted FG - pitted Lip - pittedP glaciolacustrine P glaciofluvial undifferentiatedGenerally longunidirectional slopeslacking forms char-act- MI - inclined morainal CI - inclined colluvial Ui - inclinederistic of other groups .undifferentiatedSlopes greater than 3% .Generally relatively flatsurfaces bounded by steepslopes on at least one side .Occur In valleys .It - terraced lacustrin eLG - terrace dglaciolacustrineFt - fluvial terrac eF G -glaciofluvia lt terraceUt - terracedundifferentiatedGenerally long, relativel ysmooth slopes extendin gfrom an apex in an arc of u pto 180° . Slopes may varyfrom 5 to 30% .Generally long, relativel ysmooth slopes extendingfrom a series of apron swith perimeters coalescingwith adjoining fans .Ff - fluvial fa nF fG- glaciofluvial fan Cf- colluvial fan Uf- undifferentiated fa nFa - fluvial apron Co - colluvial apron Uo - undifferentiatedapronSlopes characterized by thinsurface deposits which masklittle of the configurationof underlying bedrock ordeposit .My - morainal veneerLv - lacustrine veneerGL v -glaciolacustrineveneerFv - fluvial venee rGF v -glaciofluvial veneerCv -colluvial veneerUv - undifferentiatedveneerSlopes characterized byrelatively thin surfacedeposits which subduebut do not completel ymask the configurationof the underlyin gbedrock or deposit .Lb - lacustrine blanket Fb - fluvial blanke tMb - morainal blanket GL b - glaciolacustrineFGb -glaciofluvial Cb -colluvial blanket Ub - undifferentiate dblanketblanke tblanke t