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| UGUST, 1910o NOTES ON THE GEOLOGICAL SECTION OF MICHIGAN' PART II. FROM THE ST. PETER SANDSTONE UP ...report for 1908. The second, or upper part of the Michigan rocks here described, including Ordovician and...have therefore in the Michigan section an ideal place, where the strata are well exposed, to study those...oscillation below Keewatin THE GEOLOGICAL SECTION OF MICHIGAN 395 396 A. C. LANE ORDOVICIAN ii. St. Peter...terminating in the Lake Superior overlap which in Michigan at least may include a good part of Ulrich's Ozarkian |
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| (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |
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| Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...mineral resources began well before the first Europeans set foot here. When Michigan became a state in 1837...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |
