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184743 results.

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Page 7350, results 183726 - 183750

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Publication Extents

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Economic geology of the Bingham mining district, Utah
J. M. Boutwell, Arthur Keith, S. F. Emmons
1905, Professional Paper 38
The field work of which this report represents the final results was first undertaken in the summer of the year 1900. This district had long been selected by the writer as worthy of special economic investigation, as well on account of the importance of its products as because of its...
The geology of the Perry Basin in southeastern Maine
G. O. Smith, David White
1905, Professional Paper 35
The geologic examination of the Perry district, in southeastern Maine, was undertaken at the request of the Survey Commission of the State of Maine. During the 1902-3 session of the Maine legislature an effort was made by petitioners resident in Washington County to obtain from the State an appropriation of...
Geology of the central Copper River region, Alaska
Walter C. Mendenhall
1905, Professional Paper 41
It is an interesting evidence of the prompt responsiveness of our governmental organization to popular needs that the year 1898, which saw the first rush of argonauts to Alaska as a result of the discovery of the Klondike in 1986, saw also several well-equipped Federal parties at work in the...
Forest conditions in the Gila River Forest Reserve, New Mexico
T. F. Rixon
1905, Professional Paper 39
The Gila River Forest Reserve was established by proclamation of President McKinley on March 2, 1899. The following is a statement of the boundaries as laid down in the proclamation: "Beginning at a point on the boundary line between New Mexico and Arizona, where it is intersected by the north...
Zinc and lead deposits of northwestern Illinois
Harry Foster Bain
1905, Bulletin 246
Zinc and lead minerals are found in two widely separated districts in Illinois. One of these occurs in the extreme southern portion of the State and includes portions of Hardin, Pope, and Saline counties. It forms part of the Kentucky-Illinois fluorspar, lead, and zinc field, and for convenience may be...
The copper deposits of the Clifton-Morenci district, Arizona
Waldemar Lindgren
1905, Professional Paper 43
The oldest rocks of the Clifton quadrangle are pre-Cambrian granite and quartzitic schists, separated by an important unconformity from the covering Paleozoic strata. The latter comprise a total thickness of 1,500 feet. At the base lie 200 feet of probably Cambrian quartzitic sandstone, succeeded by 200 to 400 feet of...