Data of Geochemistry - USGS Publications Warehousedistrict of Canada, appear to have a genetic relation to volcanic and igneous ... From oolitic chamosite-limonite-siderite rock in Northampton sand ironstone.limonite sand canada,Economic Geology Report ER84-2: Silica in . - Province of ManitobaOolitic pyrite layer in Winnipeg sandstone, Black Island quarry. Cross-section of the .. most refractory of all sands tested from Western Canada". The report.Sedimentary environment and diagenesis of the Lower Cretaceous .aDepartment of Geology, Saint Mary's University, Halifax, NS, Canada B3H 3C3 . conditions in swamps and ponds produced siderite nodules and framboidal pyrite, which were .. acquired for exploration for kaolin clay and silica sand.
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