Mineral land classification Volume 44; showing indications of iron formations in parts of Ashland, Bayfield, Washburn, Sawyer, Price, Oneida, Forest, Rusk, Barron and Chippewa counties

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...it is so continuous in the adjoining township. It'is not unlikely that this marks the location of an iron formation. Very slight attractions were found at other points, but none of them form well defined lines. Land Classification.--A general discussion of the principles of land classification employed in this work is given in Chapter V. Lands on the magnetic line in section 6 are placed in class C1, and all others in C2. Exploration.--Exploration in this township should be confined to the magnetic line of section 6. It is believed that some work should be done on this line to determine the cause of the attraction. Results at any one place will indicate whether further work is likely to lead to the discovery of ore. Much of the work done in exploration for iron ore is wasted because of failure to make intelligent use of the geologic and magnetic data to be obtained by a careful preliminary survey, and because the geologic information given by the drill is not properly used as a guide for further work. The value of careful scientific methods of exploration therefore cannot be too strongly emphasized. If exploration is contemplated in this township the discussion of this subject in Chapter VI should be carefully studied. WISCONSIN GtOLOGICAL ANO NATURAL HISTORY SURVEY E. A. BIRGE. UmectM TOWN 37 N., R. 4E. Survey Made in September, 1913 lTnder the Direction of W. O. HOTCHKISS, State Geologist AM) E. F. BEAN and 0. W. WHEELWRIGHT, in charge of Field Parties H. H. BRADT, Chief of Party J. O. BRYANT, AnI GvologiM W. L. DOBIE, Asst. Geologist SYMBOLS AND ABBREVIATIONS. The symbols and abbreviations used on this map are explained in Chapter II. TOWN AND RANGE LINES. In constructing this map the south line of the township was laid off as a true east west line. The ...