098W0646 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/098w/098w0646 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 098W0646 PL.AVELGEM 98W E.DELVAUX 665 = 646 (IV) Même observation.
