Who was an American writer responsible for a dissertation concerning  the towns and districts built near sediment formations around Lake Superior?
Iron Range Iron Range refers collectively or individually to a number of elongated iron-ore mining districts around Lake Superior in the United States and Canada. Despite the word "range," the iron ranges are not mountain chains, but outcrops of Precambrian sedimentary formations containing high percentages of iron. These cherty iron ore deposits are Precambrian in age for the Vermilion Range, while middle Precambrian in age for the Mesabi and Cuyuna Ranges, all in Minnesota. Similarly, the Gogebic Range in Wisconsin and the Marquette Iron Range and Menominee Range in Michigan. Natural ores and concentrates were produced from 1848 until the mid 1950s, when taconites and jaspers were concentrated and pelletized started to become the major source of iron production.
Charles Abiathar White Charles Abiathar White (January 26, 1826 – June 29, 1910) was an American geologist, paleontologist, and writer whose publications total 238 titles. He was born at North Dighton, Massachusetts. He was the State geologist of Iowa in 1866-70, and professor of natural history in the State University of Iowa in 1867-73. He held a similar position at Bowdoin College in 1873-75, and was geologist and paleontologist of the United States Geological Survey between 1874 and 1892, and after 1895 was an associate in paleontology at the United States National Museum.