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DEFINITION OF TERMS <br /> GRAPHIC, GROUP SECONDARY DIVISIONS <br /> PRIMARY DIVISIONS SYMBOL SYMBOL <br /> �- 0 0 0 o well graded gravels,gravel sand mixtures,little <br /> n 0000 <br /> (� 0000 GW or no fines. <br /> Clean Gravels o 0 0 0 <br /> GRAVELS (Less Than :. <br /> °°'�'�••' poorly graded gravels or gravel-sand mixtures, <br /> 5%Fines) m <br /> More Than Half 0 ,';g; , GP little or no fines. <br /> 'o';o.`p;o:•, <br /> Of Coarse <br /> Fraction is O 00 o S'dry gravels,gravel-sand-clay mixtures, <br /> °1 Larger than Sal o 0 a o GM non-plastic Fines. <br /> 4 <br /> 00 4 0 <br /> N m No.4 Sieve Gravel <br /> With Fines <br /> w <br /> Clayey gravels,gravebsand-day mix[uras. <br /> U1 ra m plastic fines. <br /> � m m <br /> Zuj 76 gravelly Iindo or no <br /> Qq o Well graded sands or ravel) sands. <br /> a N ¢ SW fines. <br /> wcts ra Clean Sands <br /> C SANDS (Less Than <br /> �25%Fines) m Poorly graded sands or gravelly sands,little or <br /> op S P no fires. <br /> U Moro Than Half <br /> o Of Coarse <br /> Fraction Is Silly sands,sand-silt mixtures,plastic rues. <br /> Smaller Than z SM <br /> No.4 Sieve Sands <br /> With FInes Sastic fines. <br /> S SC Crayey sands,sand-clay mixtures,p <br /> Inorganic silts and very fine sands,rock pour,silty <br /> ML or clayey Fine sands or dayey silts with slight <br /> plasliaty. <br /> SILTS AND CLAYS Inorganic days oi low to medium pt-tidly, <br /> E <br /> tm Liquid Limit Is <br /> 4 CIL gravelly days,sandy days,silty days,loan clays. <br /> Loss Than 50% I I r k <br /> O m ea v� I i 1 I Organic silts and organic silty days of low <br /> 2 l l l k �I plasticity. <br /> - W m(n I i t l <br /> Z M o <br /> N inorganic Gilts,micaceous or diatomaceous fine <br /> 0 <br /> L 76 MHsandy or silty soils,elastic silts. <br /> itz <br /> z LSILTS AND CLAYS <br /> C1. [ CH Inorganicdays of lfgh plasticily,ial clays. <br /> Liquid Limit Is V <br /> o Greater Than 50% <br /> g !!!! Organic days or medium to high plasticity, <br /> OH organic silts, <br /> ighly organic aoiSs <br /> HIGHLY ORGANIC SOILS <br /> Pt Peat and other h <br /> ANSOM; AMW BOREHOLEIWELL LOG LEGEND <br /> ENVIRONMENTAL <br /> 6 �a Page 1 of 2 <br />