 | | Report (issue) | | Pegmatite Investigations 1942-45 New England By EUGENE N. CAMERON and OTHERS GEOLOGICAL SURVEY PROFESSIONAL..._______ _ Geology of the pegmatite districts of New Hampshire_ Rock units ________________________________...pegmatites ___________________ _ Pegmatites of the Grafton and Keene districts __ _ Sources of pegmatites..._ Trim _____________________ - ______ ---------- 1 3 32 32 33 33 33 33 35 36 37 37 37 Mica deposits-Continued...quality __ AnalyHis of the wartime mica industry of New England ________________________________________ |  | | Journal (article/letter/editorial) | | possibilities for Connoisseur’s Choice nominations arise. Tourmaline, topaz, and amethyst were suggested, but quickly...desirable as brazilianite. Unlike many relatively new minerals, brazilianite made its debut in unusually...radially fibrous masses. Inclusions of quartz, tourmaline, apatite, and muscovite crystals have been described...nearby Dunton quarry,Maine. Other unconfirmed Maine occurrences include the Harvard quarry at Greenwood...the Nevel quarry, the rose quartz crystal locality of Mount Plumbago, and the Mount Mica quarry at Paris |  | Cameron, Eugene Nathan, Larrabee, David Marcel, McNair, Andrew Hamilton, Page, James Jeffers, Shainin, Vincent Everett, Stewart, Glenn William (1945) Structural and economic characteristics of New England mica deposits. Economic Geology, 40 (6) 369-393 doi:10.2113/gsecongeo.40.6.369 | Journal (article/letter/editorial) | | VOL. XL OF GEOLOGISTS No. 1945 STRUCTURAL AND ECONOMIC CHARACTERISTICS NEW ENGLAND MICA DEPOSITS................................................. 3?1 Previous 372 work ...................................................... Types of pegmatitesin New England ..................................... Zoning......................... Types of mica depositsin New England pegmatites....................... Wall-zone...GeologicalSurveyhasbeenengagedin a comprehensive investigationof New England mica pegmatites. More than 200 pegmatiteshave |  | | Journal (article/letter/editorial) | | solution of the problem must be looked for in the new ideas on " fronts " of metamorphism. C i X T seems...wrong in thinking as I did then that folly could J . no higher go, for here we have a case of investigators...Doris L. Reynolds, in the Geological Magazine (1947).1 On reading such an authoritarian judgment, we seemed...should not, therefore, be seriously troubled by this new condemnation, were it not that it is stated in terms...correct", and declares himself " unable to agree ". 1 Since the publication of O. T. Jones' paper, a letter |  | | Book | | . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 1 Austria . . . . . . . . . . . . . . . . . . ... xviii Remarks, Definitions, Units # Table I.1. Approximate correlation of terms used in resources...that, independent of their status of confidence, no great distinction is made between the terms “resources”...surface estimated additional resources billion years = 1 000 Ma in-situ leaching method Remarks, Definitions...or natural uranium Conversion Factors 1 1 1 1 1 1 1 1 $1 $1 t t t U t U t U3O8 t U3O8 sh.t. U3O8 sh |
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