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i Ultrabasic rocks
ii Basic rocks
fb General characteristics of the Ruvu alluvial deposits
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alluvial ash content Basement System basin beds black-grey block Borehole Borehole Core Boundary Fault calcareous calcite cent Coal Measures Coal Mudstone coal seams coaly fragments Coaly shale coaly streaks corundum D. R. Grantham Degree Sheet depth District Dodoma E. O. Teale east F. B. Wade feet felspathic flats float sink G. M. Stockley Geological Survey Glossopteris gneiss gorge granite grey grey-black grey-white grit hills Iramba Ironstone J. H. Harris Karroo Karroo rocks Lake limestone Lupa Goldfield Mhukuru Coalfield Mhukuru River miles Mineral Mkomolo mottled Mpanda Mudstone Musoma Mvuha Mwanza Namwele coal north-east Northern Oates occur outcrop pegmatite peneplain plant fragments plant remains plateau Provisional Geological Map pyritic quartz quartzite reefs Ruhuhu Ruvu River Sandstone sandy shaft Shaly coal shear sideritic Siltstone silty slickensided slightly broken slightly coaly Smith Sound sulphur surface Survey Point Tanganyika Territory thickness thin banded Ufipa Uluguru unconformity Uzinza valley