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Appendix B: Arrival Time Data

Description: "This appendix contains phase arrival information for local and near-regional events which have been well recorded by the Anna Seismic Network." (p. B1)
Date: February 1990
Creator: Young, C. J.; Lay, T. & Jacobson, Willard J.
Item Type: Refine your search to only Dataset
Partner: UNT Libraries Government Documents Department
open access

Copper Mining in North America

Description: From introduction: "In this paper are assembled and summarized many subjects relating to the copper industry in North America. Production of mines and districts, history of the industry in North America. Production of mines and districts, history of the industry, geology, of the principal deposits, and mining methods and costs are discussed."
Date: 1938
Creator: Gardner, E. D.; Johnson, C. H. & Butler, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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