PURPOSE AND SCOPE This bibliography lists all publications on copper published prior to January 1, 1952. The reports are grouped by type of publication, such as professional papers, bulletins, monographs, and are numbered consecutively from 1 to 235. These numbers are used to refer to the reports in the subject and author indexes at the end of the bibliography. The subject index lists the publications alphabetically by location and topic, and the author index lists the reports by their authors. Unless otherwise indicated, publications for which prices are given can be purchased from the Superintendent of Documents, Government Printing Office, Washington 25, D. C. Those preceded by an asterisk (*) are out of print but can be seen in many public and university libraries. Index Bull. No. No. (50) *225 Contributions to economic geology, 1903.
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards 1 Reston > VA 22092 1990 GEONAMES Data Base of Geologic Names of the United States Through 1988The GEONAMES data base is an annotated index lexicon of formal geologic nomenclature of the United States, its territories and possessions.The data base was compiled by R. W.
This version of GEONAMES has been updated based on information published through 1988, and it contains approximately 30,OOO records relating to more than 18,OOO names. Data are entered in 10 fixed fields containing up to 123 characters of information for each record. The fields are: I. 1 location of unit; S. geologic age; 3. name of unit; A-. USGS usage; 5. lithology; 6. geologic province; 7. thickness at type section; 8. location of type section; 9. lexicon reference; 1O. unique identifier. DEFINITION OF FIELDS. The formats and codes used in the fields are explained below. Fields 5, 6, 7, 8, and 9 are used only once for each unit as this information pertains to its type locality and original reference.
The GEONAMES data base is an annotated index lexicon of formal geologic nomenclature of the United States, its territories and possessions.The data base was compiled by R. W.
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