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| GEOLOGICAL SURVEY GEOCHEMISTRY OF THE NEW LONDON AREA, SOUTHEASTERN CONNECTICUT Richard Goldsmith Open-File............................... 3 Petrology of the rock units.................................... 4. Plainfield...the New London area, Connecticut................................. FIGURES Location of New London area...analyzed rocks from other formations in eastern Connecticut.................. 4, Semiquantitative spectrographic...spectrographic analyses of rocks from southeastern Connecticut................................. 4, Modal analyses |
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| SMITH, DIRECTOR BULLETIN 484 THE GRANITES OF CONNECTICUT BY T. NELSON DALE AND HERBERT E. GREGORY Prepared...the Geological and Natural History Survey of Connecticut WASHINGTON GOVERNMENT PRINTING OFFICE 1911 ...discussion____________________._____._ Salient features of Connecticut geology, by Herbert E. Gregory___ Origin, nature...rocks________________.__ __ Granites and granite gneisses of Connecticut, by Herbert E. GregoryName, mineral content,...intrusions_________ ____ 24 Age of the Connecticut granites________ __ _ __ 25 Structure, rock variations, weathering |
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| Lithologic sections from the New London area, southeastern Connecticut by Richard Goldsmith Open-File... Lithologic sections from the New London area, southeastern Connecticut Lithologic sections (Plate I)...measured in the New London area, Connecticut (fig. 1), to illustate the nature of the rock sequences and...the Late Proterozoic terrane of southeastern Connecticut. Sections were measured by pace and compass in...the Montville quadrangle, section I; along the Connecticut Turnpike, now 1-395, during construction of the |
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| Geology of the Composite Avalon Terrane of Southern New England Edited by Anthony D. Socci James W. Skehan... Geology of the Composite A valon Terrane of Southern New England Edited by Anthony D. Socci* Department of...Geology of the composite Avalon Terrane of southern New England / edited by Anthony D. Socci, James W. Skehan... StratigraphicāPaleozoicāCongresses. 2. GeologyāNew EnglandāCongresses. I. Socci, A. D. (Anthony D.)...Pittsburgh, Pa.) V. Title: Avalon Terrane of southern New England. VI. Series: Special papers (Geological Society |
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| Printing Office Washington, D.C. 20402 CONTENTS PAGE New geologic time chart ...............................A87 Stratigraphic names in the New London area, southeastern Connecticut: a revision, by Richard Goldsmith.................... A91 Jabez Sandstone Member: a new member of the Fort Payne Formation (Mississippian)...its members and related formations in western Connecticut and western Massachusetts by Rolfe S. Stanley...southwestern Massachusetts, and north-central Connecticut, by Rolfe S. Stanley, Douglas A. Knapp, and Norman |
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| Carboniferous cover. Carboniferous rocks of coastal New Brunswick display a greenschistfacies metamorphism...Alleghanian ductile deformation. In southeastern New England sedimentary rocks of late Pennsylvanian age...late Palaeozoic tectonothermal events have affected New England. In the Piedmont of Virginia and the Carolinas...fault-controlled retrograde metamorphism. In the USA at least, Alleghanian metamorphism also affected...along the eastern flank of the Appalachians from New Brunswick to Georgia. The metamorphism was only recognized |
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| sparse to absent in the central Appalachians. In New England several kinds of mid-Devonian to Carboniferous...varieties dominate the Devonian-Carboniferous plutons of New Brunswick and Newfoundland, whereas muscovite + biotite...Volcanism, which is bimodal, is best documented in New Brunswick and northern Nova Scotia. Igneous activity...mixed-metamorphic xenoliths comparable with adjacent country rock are abundant in some plutons, especially near marginal...aureoles (in places kyanitebearing) on the country rock, thus post-dating an earlier pre-Alleghanian regional |
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| Director Bulletin 738 THE COMMERCIAL GRANITES OF NEW ENGLAND BY T. NELSON DALE WASHINGTON GOVERNMENT...expansion____^_________________ Geographic distribution of New England granite quarries____ Descriptions of the...___ Groton____________________________ Oriinge County __________________________ Topsham___________________________..._ Randolph ___________________________ Orleans County- _______________________ Derby Barton _ _________...granite and finished product Continued. Washington County _____________________ 121 Barre and Williamstown________________ |
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| All who were involved in the preparation of the new bedrock map, particularly those responsible for the...understanding and portrayal of the geology. Although the new map is very different from Emerson's in many aspects...zones in the central part of the State are the Connecticut Valley and Merrimack "belts" of primarily Silurian...Mesozoic "basins" unconformably overlie the Connecticut Valley belt. For some packages, all aspects of...exclusively. Both terms are used to describe a metamorphic rock composed in IV PREFACE predominantly of even-sized |
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| terranes and late Paleozoic tectonism in southeastern New England; Constraints and problems .............0...geochronological studies have provided important new data that aid in the definition of Caledonian lithotectonic...carbonate successions. A 1,275-Ma, Rb-Sr, whole-rock, isochron age was reported by Edwards and Taylor...tholeiites (Ohta, 1985b). A 766-Ma, Rb-Sr, whole-rock, isochron age was reported by Gorochov and others...mineral age, RāRb-Sr mineral age, RsāRb-Sr whole-rock isochron, ArāāĀ°Ar/39Ar mineral age, fossilā acritarchs |
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| RADON POTENTIAL OF EPA REGION 1 Connecticut Maine Massachusetts New Hampshire Rhode Island Vermont OPEN-FILE...RADON POTENTIAL OF EPA REGION 1 Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont...Preliminary Geologic Radon Potential Assessment of Connecticut Linda C.S. Gundersen andR. Randall Schumann ...Preliminary Geologic Radon Potential Assessment of New Hampshire Linda C.S. Gundersen andR. Randall Schumann...directed to develop model standards and techniques for new building construction that would provide adequate |
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| GEOLOGICAL SURVEY BULLETIN 1350 A compilation of the new geologic nan1es introduced into the literature /rom... 1964 1 Principles of physical geology: 2d ed., New York, Ronald Preas, Pā¢ 36Q-361, for the Pleistocene...Geoloaical Society of London, 1964 1 The Phanerozoic time-scale; a symposium: Geol. Soc. London, Quart. Jour....Early, Middle, and Late, and fo'!' epochs. Informal rock terms lover 1 middle 1 and upper may be used where...including cross references. Most of these names are new names introduced into the literature during the years |
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| of Mineralogy British Museum (Natural History) London 1987 Ā© British Museum (Natural History) 1987...British Museum (Natural History), Cromwell Road, London SW7 SBD. First published 1987 by the British Museum...detail those already known. In recent years many new occurrences of alkaline rocks and carbonatites have...occurrences, the same has not happened in alkaline rock studies, partly because of this diversity. There...that have led to the discovery of many impo1Ā·tant new localities. The present volume is likely to be of |
