Results: 1 - 3 of 3
Dec 31, 1961
Earth Sciences Report
… Formations in adjacent areas. Ferruginous, oolitic sandstones are …
Mar 31, 2006
Geo-Note
… exploratory coal holes contain 'ferruginous intercepts' that may …
Dec 14, 2005
Information Series
… a dark brown to green-black, ferruginous oolitic zone in a bed … and nontronite imbedded in a ferruginous opaline and sideritic …