098W0833 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/098w/098w0833 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 098W0833 PL.AVELGEM 98W E.DELVAUX 2864 = 833 (V) Même observation. Pas de cailloux.