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1 <br />I <br />1 <br />i <br />i <br />1 <br />1 <br />1 <br />I 1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Column 9 weathering/dlteratian <br />a letter designating wheC,her rock mass i5 weathe^ed or <br />al[ered and type of alteration, followed by a numoer <br />indicating the degree or alteration. The follow ng <br />scheme should he followed: <br />W weathered lmodify according to situation) <br />A argillic alteration <br />S silicification <br />Other letters can be added to describe different <br />alteration types. <br />The degree or alteration/weathering is described below: <br />OEG~EES aF WEdTHE.4~NG <br />o. <br />~~ <br />~`;~~r;''h <br />~ orscaaurw fR.cruRE su+f.cE <br />~~- <br />°~"c ExTENr c~Na r,aR a+.a.cTCRancsi <br /> C <br />wrE•TMEREO I wo«E I Oi$ <br />0 ©RE~ I u+CluucEO <br /> ~'~ Y CF OISCOLOREO P•RTUI <br />SUCMTLT ~ un COMTUR I p15COlLPATgM <br />.E.rHERED T THIN FII LING <br /> 7QTM SIOE$ I <br /> Of FRaC <br />URf <br /> /•RTUL TO <br /> ~20Y OF DISCOLORED COuvtETE <br />uCO 41Y fRaCTVR[ I Y•T COnI Taw OISCOIOR•r pN <br />I <br />rf.~TMERED $P•C1MG OM Tt,ICX fllLlnG NOT FY/at)LE <br /> 80TH SroES E%LEPT POOlLT <br /> OF fgaCTURE CE~EnTFD x2113 <br />1a C1+LT II{I a <br />I <br />rEafNE13D TMRCtX.+alT I I <br />If P~OSSIOLT P <br />fTTEO <br />CyaILETELT TiA'6r<~WT RESEYd.ES <br />.can.cRm sat <br />Grade <br />S,nnba 1 <br />l <br />2 <br />3 <br />4 <br />5 <br />