The Soils of Elgin County - Agriculture and Agri-Food Canada

Soil typeSolumSpillwayStereoscopeSurficialgeology .the primary soil unit in thisreport for which alldescriptive and interpretiveinformation applies .the upper horizons of a soilin which the parent materialhas been modified and inwhich most plant roots arecontained . It usually consistsof A and B horizons .an abandoned channelformed by flowing glacialmeltwater.an optical instrument used toobtain a three-dimensionalimage of the land surfacefrom aerial photographs .that branch of geologydealing with surfacelandforms and theunconsolidated materials thatcomprise them.Tolerable soil lossVeneerVery fine texturedthe rate at which soil can beremoved before theagricultural productivity ofthe land is adverselyaffected .a layer of unconsolidatedmaterial up to one metrethick deposited on thesurface of some othercontrasting deposit.a term applied to soilmaterials which fall withinthe very fine textural group .The very fine textural groupis a group of soil textureswhich contain more than40% clay. Common soiltextures associated with thisgroup include silty clay andclay (see Figure 11).* Most definitions for this glossary were based on the following sources :Agriculture Canada, Research Branch. Revised 1976. Glossary of Terms in Soil Science. Publication1459, 44 pp .Soil Conservation Society of America . 1970. Resource Conservation Glossary. 52 pp .