084W0090 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/084w/084w0090 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 084W0090 Planche Anseghem E. DELVAUX 16 juin 1881 90 (IX) = 2986 même observation. Cailloux roulés