 | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . .... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 7 Beaver County . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . 7 Box Elder County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 10 Cache County . . . . . . . . . . . . . . . . . . . . . . . |  | | Book (edition) | | Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...gemandmineralmuseum.arizona.edu) is located in the old Pima County Courthouse building at 115 North Church Avenue...on the market. The mines at Bisbee, in Cochise County, have produced large quantities of gem-quality...mineral stamp issued in 1992. At Morenci, in Greenlee County, gem-quality azurite was also commercially recovered...parallel to the grain. The Blue Ball Mine, in Gila County, has produced thousands of azurite nodules up to |  | | Report (issue) | | of the Mahogany zone (Eocene), Cathedral Bluffs area, northwestern Colorado, by J. R. Donnell and A....paleotectonic implications, Blue Range primitive area, Arizona and New Mexico, by E. R. Landis, J. C....of glaciation in the Mesabi-Vermilion Iron Range area, northeastern Minnesota, by T. C. Winter . . . ...Mineralogy Clay minerals, Longfellow mine, San Juan County, Colo., by R. G. Luedke and J. W. Hosterman .....hybrid granitoid rocks of the Mount Wheeler mine area, Nevada, by D. E. Lee, R. E. Mays, R. E. Van Loenen |  | | Report (volume) | | ___ ____ Geologic formations__________ Subject, area, or individual. Individual names. Listed by name...information indexed. Area listing of all formation tables and sections. Area. Area; some sketch maps included...___________ Systems__________________ Subject or area. Area; also includes articles discussing origin of...of minerals or ores. Mineral name listing. Area; includes more than one mineral; not indexed to individual...by name of field. Papers written for the layman. Rock names and areas; restricted to new or unusual rocks |  | | Journal (issue) | | the data and interpretations come from the ancient rock record. The purpose of this short editorial is to...concerned with the complex relationships of descriptive rock bodies in an interpreted time context as occur in...fossil-hunting season? MISCELLANEOUS Original Naming of a Rock-Stratigraphic Unit In many cases, it is a good idea...idea to cite the original reference in which a rock-stratigraphic unit was named. This is especially...unit's name, rank, or boundaries. In the latter USA GE OF STRA TJGRAPHIC TERMINOLOGY case, an explanation |  | | Book | | and volcanic sulfur Summary References 6 WALL ROCK ALTERATION 166 Charles Meyer and J. Julian Hemley...zinc—requires only that the amount of metal in 100 km? of granite be diminished by about 3 ppm. A volume of 100 km3...igneous rocks, their amounts varying from one kind of rock to another chiefly according to Goldschmidt’s rules...strontium isotope ratios in basalts indicates that the rock material must be generated in a place where the...large bodies of mafic magma may be assumed with little question to be the sources of metal for some ore |
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