alterationalteration haloalteration zoningaltitude correctionalunitizationamalgamamalgamationamine collectorsammonium dynamiteammonium nitrate with fuel oilamorphousamphoteric collectorsanalytical erroranatexiteanchor load cellandreasen pipetteanemometerangle of nipangularangular unconformityanionic collectoranionic flocculantanisotropyannulasanomalyantecedent riversanthracosisanticlineanticlinoriumantistatic detonatorapertureapexapparent dipaproximate analysisaqueous dispersion halosaquicludeaquiferaquifer lossaquifugearabic gumarc actionarc arrangementarcharch girderarea mining methodareometerargillic alterationarithmetic mean methodarticulated truckasbestosis