Geochemical Orientation Surveys in the Quesnel Terrane between Quesnel

Ori en ta tion sur veys are an es sen tial part of any largescale geo chem i cal pro gram be cause they serve to es tab lish op ti mum sam pling and an a lyt i cal tech niques. Among vari ables that need to be de ter mined by a soils ori en ta tion are the sam ple den sity, soil ho ri zon, sam ple grain size or min eral frac tion, and an a lyt i cal method. Es tab lish ing geo chem i cal back ground for each el e ment, ei ther by ref er ence to lit er a ture val ues or by cal cu lat ing sta tis tics from the ori en ta tion sur vey data, is the first stage in de fin ing an anom aly. Closely linked to es tab lish ing back ground is de cid ing on the com bi na tion of sam ple grain size, sam ple di ges tion tech nique and el e ment de tec tion method that will give the great est anom aly contrast (signal to noise ratio) for all ore indicator and pathfinder elements.