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Geology of part of the Horseshoe atoll in Borden and Howard Counties, Texas
R. J. Burnside
1959, Professional Paper 315-B
The Horseshoe atoll is an arcuate mass of deeply buried fossiliferous limestone of Pennsylvanian and early Permian age in the Midland basin of west Texas. The southern part of the atoll is in southern Borden and northern Howard Counties. From early Strawn until early Wolf camp time this atoll, which...
Geology of part of the Horseshoe atoll in Scurry and Kent Counties, Texas
Philip T. Stafford
1959, Professional Paper 315-A
The subsurface Horseshoe atoll is an arcuate accumulation of fossiliferous limestone 70 to 90 miles across in the northern part of the Midland basin, in western Texas. The stratigraphy, the lithologic character of the rocks, and the petroleum reservoirs of the southeastern part of the atoll in Scurry County and...
Iron-ore resources of the United States including Alaska and Puerto Rico, 1955
Martha S. Carr, Carl E. Dutton
1959, Bulletin 1082-C
The importance of iron ore, the basic raw material of steel, as a fundamental mineral, resource is shown by the fact that about 100 million long tons of steel is used annually in the economy of the United States, as compared with a combined total of about 5 million long...
The Geology of the Upper Mississippi Valley Zinc-Lead District
Allen V. Heyl Jr., Allen F. Agnew, Erwin J. Lyons, Charles H. Behre Jr., Arthur E. Flint
1959, Professional Paper 309
The upper Mississippi Valley zinc-lead district includes the southwest part of Wisconsin, the northwest corner of Illinois, and a narrow fringe of Iowa extending from Bellevue to McGregor, just west of the Mississippi River. The total area of the district is 4,000 square miles. The entire district is drained by...
A field method of spectrographic analysis for use in geochemical exploration work
Uteana Oda, A.T. Myers, E.F. Cooley
1959, Open-File Report 59-91
The method to be described is a modification of an earlier method of semiquantitative procedure. Through its use 34 elements can be determined simultaneously in one sample, which may be a rock, soil, mineral, or an ore. For many of these elements concentration ranges from one to ten thousand parts...