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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin (Classic Reprint): Containing a Preliminary Report on the Copper-Bearing ... and Bayfield Counties (Classic Reprint) - Brossura
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Excerpt from Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin
This examination was made between the 17th of May and the 2oth of J mm. The remainder of the season, until the last of August, was spent on the northern district. But during this time a visit was made, for the purpose of comparative study, to the copper-mining region of Keweenaw point. The method followed in the season's field work was to visit all parts of the two areas above mentioned which were known to have rock outcrops, or in which outcrops might be reasonably expected. In. Such parts north and south traverses were made at intervals of one-half mile, or more frequently when occasion demanded. Thus, in the region where outcrops occur fre quently, the north and south section lines, the north and south quarter section lines and some of the east and west section lines were followed. The larger streams, and in fact all the streams which might be expected to cut down to the bed rock, were also followed. The outcrops seen were located carefully by pacing, and the position of each was indicated as so many paces north and so many paces west of the southeast corner of the given section. In this manner of locating paces equals one mile. Rock samples were taken from most of these outcrops. In all about 775 rock numbers and a considerably greater num ber of specimens were collected.
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin : Containing a Preliminary Report on the Copper-Bearing Rocks of Parts of Washburn and Bayfield Counties (Classic Reprint)
Da: Buchpark, Trebbin, Germania
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Condizione: Sehr gut. Zustand: Sehr gut | Sprache: Englisch | Produktart: Bücher. Codice articolo 25830351/2
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin : Containing a Preliminary Report on the Copper-Bearing Rocks of Parts of Washburn and Bayfield Counties (Classic Reprint)
Da: Buchpark, Trebbin, Germania
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Condizione: Hervorragend. Zustand: Hervorragend | Sprache: Englisch | Produktart: Bücher. Codice articolo 25830351/1
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin
Da: PBShop.store US, Wood Dale, IL, U.S.A.
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PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9781330721681
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin
Da: PBShop.store UK, Fairford, GLOS, Regno Unito
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PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9781330721681
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin
Print on DemandDa: Forgotten Books, London, Regno Unito
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Paperback. Condizione: New. Print on Demand. This book explores the copper-bearing rocks of Wisconsin, particularly the St. Croix and Douglas ranges, focusing on geological structure, geographical distribution, and the occurrences of copper deposits. The author concentrates on these two areas because they presented simpler geological problems than other districts in the state underlain by the copper-bearing rocks. These explorations aimed to aid those interested in developing this material resource in northern Wisconsin. Initial field examinations formed the basis for the report presented in this book; however, the author notes the importance of future work in the region, acknowledging that this book is a preliminary report rather than an exhaustive study. Despite this, the author believes that the essential facts concerning these districts are presented and that future work will tend to confirm rather than alter them. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9781330721681_0
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin: Containing a Preliminary Report on the Copper-Bearing Rocks of Parts of Washburn and Bayfield Counties (Classic Reprint)
Print on DemandDa: Revaluation Books, Exeter, Regno Unito
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Paperback. Condizione: Brand New. 122 pages. 9.02x5.98x0.26 inches. This item is printed on demand. Codice articolo zk1330721683
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