underclay Definition

arenaceous, argillaceous, understratum, stratum, peloid, foralite, illuviation, stylolite, pelotherapy, superstratum, planosol, kaoline, blunger, fahlband, floatstone, clay, lutose, solonetz, rendzina, psammite, blunge, tilestone, argillous, diaclasis, nontronite, illutation, calcivorous, geophagist, granolith, albolith, peperino, tanite, remblai, cascalho, porcelanite, interstratification, biostrome, ornithichnite, geosynclinal, septarium, impaste, thinolite, nitrocalcite, downthrow, sinopite, oolith, bemoil, stromatology, mycoderma, lithophyse, geanticlinal, scolithus, spongiolite, surbase, growan, bergmeal, atterrate, irestone, regosol, alluvial fan, ginging, boottopping, cobwall, thermobarometer, figulate, woodrock, sloam, corallian, tabasheer, badigeon, ablaqueate, lepidomelane, itacolumite, potstone, abreuvoir, sandish, scrubstone, subcarboniferous, agateware, ooid, lithoid, sandstone, strockle, horizontal surface, brushite, limestone, ripidolite, gurglet, grike, amphidisc, eluvial, coalhole, miliolite, plutonism, decrustation, desert soil, barbotine, ouze, anglemeter, ferrocalcite,