. Underground water resources of Iowa . WASHINGTON GOVERNMENT PRINTING OFFICE1912 U^ h^ D. OF D, FEB 21 !913 -^^ ^^v CONTENTS. Page. Introduction, by W. H. Norton 31 Scope of the work 31 Object of the investigation 32 Cooperation with the Iowa Geological Survey 33 Geological investigation of , 33 Means of investigation 33 Available data 34 Samples of drillings 34 Collection and storage 34 Study of samples 36 Petrographic investigation 36 Possibilities of error 37 Correlation of rock formations 38 Fossils 38 Lithologic similarity 39 Order of succession 40 Dip of strata 40 Difficulty of d
. Underground water resources of Iowa . WASHINGTON GOVERNMENT PRINTING OFFICE1912 U^ h^ D. OF D, FEB 21 !913 -^^ ^^v CONTENTS. Page. Introduction, by W. H. Norton 31 Scope of the work 31 Object of the investigation 32 Cooperation with the Iowa Geological Survey 33 Geological investigation of , 33 Means of investigation 33 Available data 34 Samples of drillings 34 Collection and storage 34 Study of samples 36 Petrographic investigation 36 Possibilities of error 37 Correlation of rock formations 38 Fossils 38 Lithologic similarity 39 Order of succession 40 Dip of strata 40 Difficulty of demarcation 41 Forecasts 41 Acknowledgments i 42 Chemical investigation of well waters, by W. S. Hendrixson 43 Scope of investigation 43 Acknowledgments 43 Chapter I.—Topography and climate, by H. E. Simpson 45 Topography 45 Relief 45 Drainage 46 Driftless area 46 Relief 46 Soils 47 Drainage . 47 Drift area 48 General character 48 Drift sheets 49 Kansan drift 49 Illinoian drift 61 lowan drift 51 Wisconsin drift 52 Summary 53 Climate 5
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Keywords: ., bookcentury1900, bookdecade, booksubjectwatersupply, bookyear1912
