 | | Journal (article/letter/editorial) | | whole-rock slate/phyllite, Narragansett Basin, RI-MA, USA: implications for rejuvenation during very low-grade...Geology,Universityof Georgia, Athens, GA 30602, USA 2 Department of Geology,ShimaneUniversity,690 Matsue...within the northwestern Narragansett Basin, Rhode Island and 516 I oI Esmond-Dedham Terrane ~ Carboniferous...whole-rock phyllite ages from Dallmeyer (1982; Rhode island and eastern Connecticut) and Wintsch and Sutter...K-Ar ages from Zartman et al. (1970; northern Rhode Island) and Hurley et al. (1960; Narragansett Basin; |  | | Journal (article/letter/editorial) | | AN OVERVIEW Rhode Island MINERALS & COLLECTORS F. WILLIAM MILLER Harvard Mineralogical Museum 24 Oxford...A L SPECIES and many varieties occur within Rhode Island. Part of this abundance is attributable to the...Northern Zone, including Providence County and the northern towns of Kent County, 2) the Middle Zone, including...towns of Washington County, and 3) the Southern Zone consisting of Washington County and southwestern Newport...Newport County. The greatest number of species and varieties appear in the Northern Zone. Miller attributes |  | | Report (volume) | | SCHISTS AND ASSOCIATED GRANITES AND PORPHYRIES OF RHODE ISLAND BENJAMIN K. EMERSON JOSEPH H. PERRY WASHINGTON.............. 18 Nonoccurrence of il vaite in Rhode Island.................. 19 Inclusion of limestone............................... 24 Beds west of Providence and Pawtucket ................... 25 Cranston...crystalline rocks in the vicinity of Providence and Narragansett Bay, Rhode Island...............................SCHISTS AND ASSOCIATED GRANITES AND PORPHYRIES OF RHODE ISLAND. Bv B. K. EMERSON and J. H. PERRY. INTRODUCTION |  | | Report (chapter) | | The isotopic equilibrium between garnet and paragonite at 90-100 Ma suggests that the regional hydration...complex (Fig. 1) has been interpreted as a fossil island arc resulting from the subduction of Tethyan oceanic...1983). Between 102 4- 12 and c. 85 Ma the Kohistan island arc was accreted to Asia, forming the Northern...(Fig. 2). The main minerals are hornblende, paragonite, garnet, epidote group minerals, Fe-Ti oxides...forms vermicular intergrowths with quartz while paragonite occurs as large (about 5 mm), euhedral crystals |  | | Journal (article/letter/editorial) | | Geology, University of Georgia, Athens, GA 30602, USA ABSTRACT Aegirine-jadeite clinopyroxene (>60 mol%...420" C and >11 kbar. Porphyroblastic white mica (paragonite/phengite) within the blueschist assemblage records...Na-amphibole, Na-pyroxene, epidote, phengite, paragonite, and chlorite, with accessory magnetite, quartz...same area. Sodic pyroxene, calcic amphibole and paragonite in the blueschists were not described by these...04 * % pist. 23.9 29.3 28.2 25.2 23par: paragonite, 23ph: phengite, mo: grain mount, th: thin section |  | | Journal (article/letter/editorial) | | Geological Sciences, Brown University, Providence, Rhode Island 02912 {Received 28 April 1973; in revised...muscovite+quartz = K-feldspar+AJ 2 SiO 5 +H 2 O paragonite+quartz = albite+Al 2 SiO 3 +H 2 O pyrophyllite...Quartz High albite Sanidine Sillimanite Muscovite Paragonite Pyrophyllite vK + -vH + v-Na+-vH + 22-688 100-43...60 70 kb kb kb kb kb kb kb kb Pyrophyllite Paragonite Muscovite 100 0-50 0-25 * 100 0-50 0-25... The decomposition data of muscovite+quartz, paragonite+quartz, and pyrophyllite calculated for three |  | | Journal (article/letter/editorial) | | substitutions in these samples. Keywords: Muscovite, paragonite, phengite, 40Ar/39Ar, geochronology, laser analysis...from micrometer- to centimeter-scale, muscovite-paragonite-phengite solid solutions are prevalent (Guidotti...Asymmetric solvi exist between muscovite-paragonite and paragonite-margarite, such that muscovite in typical...greenschist- to amphibolite-facies rocks contains 5–30% paragonite, and there is essentially no solid solution between...margarite. Incorporation of Ca into paragonite also limits paragonite-muscovite solid solution. Thus, in |  | | Journal (article/letter/editorial) | | Geology, University of Georgia, Athens, GA 30602, USA Department of Geology, Faculty of Science, Shimane...from the albite-biotite zone in central Shikoku. Paragonite grains within concentrate 3 are not zoned. Na/(Na+...concentrates (Table 2) are muscovite (4 & 5) and paragonite (3). Constituent grains within the muscovite...closure temperature. The age of 9 4 M a recorded by paragonite within the marginal shear zone of the Sebadani...possible that the A r retention temperature of paragonite is different from that of muscovite (e.g. Dallmeyer |  | | Journal (article/letter/editorial) | | r i t e + plagioclase + zoisite + muscovite + paragonite + Jim + quartz. The garnet is remarkably clean...epidote + quartz, along with minor amounts of paragonite and margarite. The amphibole is a pargasitic...occurrence and breakdown of muscovite, margarite and paragonite, Schweiz. Mineral. Petrogr. Mitt. 63, 37-93,... A thermodynamic study of the join muscovite-paragonite in the system KAISi30 ~ NaAISi3Os-AI20~-SiO2-H20...oxygen isotopes, Ph.D. Thesis, Brown Univ., Providence, Rhode Island, 1990. 28 D.J. Brabander and B.J. Giletti |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...localities: the mineralogy of Graves Mountain, Lincoln County, G eorgia........................................ from the Sweetwater mine, Ellington, Reynolds County, Missouri. Collection of Maudine and Bob Sullivan;...localities: the mineralogy of Graves Mountain Lincoln County, Georgia Robert B. Cook, Jr. Department of Geology...Mountain is located in extreme western Lincoln County, Georgia, approximately 8 kilometers southwest |  | | Journal (article/letter/editorial) | | both the lM and 2M forms of muscovite.If the lM paragonite. Contrib. Mineral Petrology, TI, 244-257. form...ph,D. Dissertation, Brown University, providence, Rhode Island. Evews, B. W. (1965) Application of a |  | | Journal (article/letter/editorial) | | textural type of white mica (both muscovite and paragonite) forming large (2-3 mm) plates, also overgrows...assemblage garnet-staurolite-biotite-kyanite-muscovite-paragonite-quartz. The sample contains two large (10-12...more rich in staurolite, chlorite, margarite and paragonite. In addition, this fabric is gently folded, implying...assemblage garnet-staurolite-chloritoidchlorite-paragonite-margarite-quartz. No potassiumbearing phase is...principally of chlorite, chloritoid, Fe-Ti oxides, paragonite and quartz Fig. 3a, b. HC101 523 Garnet (2): |  | Dallmeyer, R.D., Peucat, J.J., Hirajima, T., Ohta, Y. (1990) Tectonothermal chronology within a blueschist-eclogite complex, west-central Spitsbergen, Svalbard: Evidence from 40Ar39Ar and RbSr mineral ages. Lithos, 24 (4) 291-304 doi:10.1016/0024-4937(89)90049-2 | Journal (article/letter/editorial) | | of uniform composition very near that of ideal paragonite. The concentrates from samples 4B and 6 are homogeneous...ofphengitic grains (Si = 3.42-3.54) with only minor paragonite components (3.42-7.10%). Constituent grains within...generally phengitic (Si=3.33-3.39) with only minor paragonite components (1.39-12.44%). A subordinate grain...conditions. Thesis, Brown University, Providence, Rhode Island, 88 pp. (Unpublished) Scrutton, C.T., |  | | Journal (article/letter/editorial) | | 378 is undoubtedly the Hahns Peak area in Routt County, northern Colorado. It is not usually especially...success. He has cabochons of moonstone from Stephens County, which are unusually good ; also, rutilated rose...near the new waterworks dam at Mountain Ciy, Rabun County, Ga. He has a yellow cabochon of unusual beauty...Rabun County. The prize of the lot is opalescent rose quartz from the Kell mica mine in Rabun County. This...Marriotteville Flagstone formation in Baltimore County. Today we visited the opening and returned with |  | | Journal (article/letter/editorial) | | numbers. 734 R.D. DALLMEYER& M. B. STEPHENS paragonite, quartz and rutile. During regional prograde...porphyroblasts. White mica (phengite and locally paragonite), quartz, rutile and locally chloritoid comprise...Unpublished Masters Thesis, Brown University, Providence, Rhode Island, 88 pp. ROBERTS, D. & GEE, D. G. (1985):... - In: Wones, D. R. ed., The Caledonides in the USA: Blacksburg, Virginia Polytech. Inst. and State Univ |  | | Book | | Geology & Geophysics Geology, University of Rhode Island Science, Bentley College Earth Sciences & Geography...Hingham, Massachusetts Geology, University of Rhode Island Earth Sciences & Geography, Bridgewater State...and Development of Plum Island, Massachusetts: An Example of a Barrier Island System by J. Richard Jones...Pre-Pennsylvanian Rocks of Aquidneck and Conanicut Islands, Rhode Island by Suzanne Mahlburg Kay and William M. Chappie...Metamorphism in Southeastern Massachusetts and Rhode Island by James W. Skehan, S. J., Daniel P. Murray |  | DE YOREO, J. J., LUX, D. R., GUIDOTTI, C. V., DECKER, E. R., OSBERG, P. H. (1989) The Acadian thermal history of western Maine. Journal of Metamorphic Geology, 7 (2) 169-190 doi:10.1111/j.1525-1314.1989.tb00583.x | Journal (article/letter/editorial) | | Princeton University, Princeton, New lersey 08.h4, USA D . R. LUX, C. V . GUIDOTTI, E. R . DECKER AND P...Sciences, University of Maine, Orono, Maine 04469, USA ABSTRACT Following the Middle Devonian Acadian deformation...passive margin of the North American craton and an island arc terrane, over an east-dipping subduction zone...i m l o o k meguntic (23) Spider Lake (24) Hog Island (25) Hartland (26) Sebago 382f3 381 f 4 U-Pb... The upper stability limit of the assemblage paragonite and quartz and its natural occurrence. Contributions |  | | Journal (issue) | | found. Some localities are: Rozena, Moravia; the Island of Elba; Paris, Hebron, Auburn, and Rumford, Maine;...Maine; Chesterfield, Massachusetts; San Diego County, California; Colorado and New Mexico. 6 ROCKS AND...muscovite crystals from Brooks Fann, Cleveland County, North Carolina. ~ TABLE 1.-MICA-GROUP MINERALS...(A12Si2) 010 (OH)2 Best known of "brittle micu" Paragonite NaA12 (A1Si3) 010 (OH>2 Sodium-bearing mica...in a dolomite from near Bonneterre, St. Francis County, Missouri ; in the Mesabi district of Minnesota; |  | | Journal (article/letter/editorial) | | the Tertiary metamorphic evolution of Naxos, an island located centrally in the Attic Cycladic Metamorphic...observed structural relations found on the nearby island of Ios, the rocks of central Naxos may represent...the mica schists include phengite, glaucophane. paragonite, chlorite, garnet, chloritoid and albite. The...and ultramafics (Jansen, 1973). On the adjacent island of Ios, a similar structural dome is exposed which...complexes of the Basin and Range province in western USA. quently, they suggested that the M2 metamorphism |  | | Journal (article/letter/editorial) | | Geoio~,, UmversiO,of Georgta, Athens, GA 30602, USA (Received October 23, 1990; revised and accepted...Geology. University of Georgia, Athens. GA 30602. USA. belt by a regional transcurrent fault (Median Tectonic...chemistry of constituent minerals (e.g., garnet, paragonite-muscovite and plagioclase) within the high-grade...hydrothermai conditions. Thesis, Brown Univ., Providence, Rhode Island, 88 pp. (Unpubl.) Roddick, J.C., 1978 |  | | Report (volume) | | Bulletin 597 GEOLOGY OF MASSACHUSETTS AND RHODE ISLAND BY B. K. EMERSON WASHINGTON GOVERNMENT PRINTING....................................... Worcester County, Mass....................................... Westboro...formation......................................... Rhode Island...............................................formation........................................... Rhode Island formation .................................................................... 150 Berkshire County............................................... |  | | Report (issue) | | financially in part by, the numerous Federal, State, County and City agencies listed on pages A133 to A136...of water use______ Water resources of Providence, Rhode Island, and vicinity.------------ -------Water..._________________________________ Geologic mapping in Rhode Island-___________ Geologic mapping in Connecticut___________...geophysical studies_________________ Ground water in Rhode Island _______________ Quality of water in the St....____________ Quality of ground water, Delaware County, New York_._____________________________ Shield |  | | Journal (article/letter/editorial) | | University, P.O. Box 208109, New Haven, CT 06520-8109, USA Trace element concentrations in earth and planetary...temperatures in these rocks due to the presence of the paragonite component in muscovite—it is seen for example...g. Paragonite ? Quartz ? Albite ? H2O ? Melt) followed by dehydration of melting (e.g. Paragonite ? Quartz...isotopes. Ph.D Thesis, Brown University Providence Rhode Island Dasgupta S, Ganguly J, Neogi S (2004) Inverted |  | Glodny, Johannes, Austrheim, Håkon, Molina, José F, Rusin, Anatolij I, Seward, Diane (2003) Rb/Sr record of fluid-rock interaction in eclogites: The Marun-Keu complex, Polar Urals, Russia. Geochimica et Cosmochimica Acta, 67 (22) 4353-4371 doi:10.1016/s0016-7037(03)00370-3 | Journal (article/letter/editorial) | | 2003 Copyright © 2003 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/03 $30.00 ⫹ .00 Pergamon...East European Platform from microcontinents and island arcs further east, is the main suture zone of the...complex, the rocks of which grade towards E into island arc lithologies. The present regional geological...quartz-rich veins predominate, with phengite, paragonite, omphacite, garnet, apatite (often Cl-rich) and...facies lithologies by the (autocatalytic) reaction paragonite ⫹ white mica I (high phengite)⫹ garnet N white |  | (1994) Volume 58, 1994 List of Associate Editors and Reviewers, List of Contents, Subject Index, Author Index, Book Reviews Published, Books Received, Subject Areas of Manuscripts Published in 1994ished, Books Received,. Geochimica et Cosmochimica Acta, 58. doi:10.1016/0016-7037(94)90592-4 | Journal (article/letter/editorial) | | Macdougall, La Jolla, CA, USA ASSOCIATE Laurie S. Balistrieri, Seattle, WA, USA B. P. Boudreau, Halifax...Bloomington, IN, USA Phillip E. Brown,* Madison, WI, USA Roger G. Bums.’ Cambridge, MA, USA R. C. Burruss...Denver, CO, USA Robert G. Byrne, St. Petersbur& FL, USA Thomas M. Church,* Newark, DE, USA Ghislaine Crozaz...Louis, MO, USA D. J. Des Marais. Moffett Field, CA, USA James 1. Drever, Laramie. WY, USA John M. Edmonds... Cambridge, MA, USA Gunter Faure, Columbus, OH, USA David E. Fisher. Miami, FL, USA Fred A. Frey, Cambridge |
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