236W0025 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/236w/236w0025.txt https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 236W0025 PL. OUREN - 236W 25 (IVb) Et.ASSELBERGHS - 1921 Débris de schistes jaunes ocreux, jaune vif, rouges.