11 research outputs found

    Igneous Petrology of Some Plutons in the Northern Partof the Penobscot Bay Area

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    Guidebook for field trips in east-central and north-central Maine: 66th annual meeting October 12 and 13, 1974: Trip A-

    Bedrock Geology of Northern Penobscot Bay Area

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    Guidebook for field trips in east-central and north-central Maine: 66th annual meeting October 12 and 13, 1974: Trip B-

    Geology of the Bottle Lake Complex, Maine

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    Guidebook to the geology of Northeastern Maine and neighboring New Brunswick: The 72nd annual meeting of the New England Intercollegiate Geological Conference, Presque Isle, Maine, October 10-13, 1980: Trip A-

    Phase relations of the biotites

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    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology, 1960.Vita.Includes bibliographical references (leaves 148-155).by David Robert Wones.Ph.D

    Nomenclature of the micas

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    End-members and species, defined with permissible ranges of composition, are presented for the true micas, the brittle nicas, and the interlayer-deficient micas. The determilation of the crystallochemical formula for different available chemical data is outlined, and a system of modifiers and suffixes is given to allow the expression of unusual chemical substitutions or polytypic stacking arrangements. Tables of mica synonyms, varieties, ill-defined materials, and a list of names formerly or erroneously used for micas are presented. The Mica Subcommittee was appointed by the Commission on New Minerals and Mineral Names of the Intemational Mineralogical Association. The definitions and recommendations presented were approved by the Commission
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