6 4,2 "Interface,m-msl",-999.99 "Lithology",-999.99 "Grain-size-distr. class NEN5104",-999.99 "Admixture",-999.99 -1.80,C,None,"Weak Silty" -2.60,C,None,"Strong Organic" -4.50,P,None,"None" -5.80,P,None,"None" -9.40,S,None,"Moderate Organic" -9.60,-,-,-