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| New Hampshire Mineral Locality Index Downloaded by [University of Newcastle, Australia] at 15:01 05...Grafton County. Rob Lawrence photo, courtesy Bob Whitmore. 242 ROCKS & MINERALS lthough New Hampshire...reading Jackson (1844) on the mineralogy of New Hampshire that even at this early date there was already...activity produced new localities, renewed some old localities, and resulted in new minerals being discovered...LOCATIONS BY COUNTY Belknap County Alton area: arsenopyrite, galena, quartz (crystals), sillimanite (Avery |
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| //' . GUIDEBOOK FOR FIELD IN ''fy,.'t:J TRIPS NEW ENGLAND NOVEMBER 10-12, 1952 Organized by the...Before visiting any of the sites described in the New England Intercollegiate Geological Conference guidebooks...Highlands of East-Central New York, Southern Vermont, and Southern New Hampshire Field Trip No. 2, Outstanding...Outstanding pegmatites of Maine and New Hampshire 73 Geology of the "Chelmsford Granite" 103 Field Trip...OF EAST-CENTRAL NEW YORK, SOUTHER Leaders: VERJ-IONT, AND SOUTHERN NEW HAMPSHIRE Marland P, Billings |
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| Bulletin 931-P MICA-BEARING PEGMATITES OF NEW HAMPSHIRE A PRELIMINARY REPORT BY J. C. OLSON Strategic................................... Alstead area, Keene district......................... Mica-bearing pegmatites... Geologic map of the Alstead area, Keene district , New Hampshire........................ 62. Map showing...and feldspar mines of the Grafton district, New Hampshire ....................................... 63o...feldspar mines of the Keene district, New Hampshire.. Figure 38. Index map of New Hampshire showing locations |
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| 01862 LUORITE DEPOSITS OF WESTMORELAND, NEW HAMPSHIRE N E W H A M P S H I R E , W E L L K N O W N...southwest New Hampshire near the Connecticut River, approximately 15 miles west of Keene in Cheshire County...posed. Figure 3: Location map, Westmoreland, New Hampshire, fluorite district. Figure 2 (left): Stoddard...fluorite de posits appear to be in treatises on New Hampshire geology by Jackson (1844) and Hitchcock (1878);...vein was discovered sometime in the late 1890s by a New York min eralogist named Lovat Frazier. Early production |
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| AUGUST 1949 GEOLOGY OF THE MONADNOCK REGION OF NEW HAMPSHIRE By KATHARINE FOWLER-BILLINGS CONTENTS Page Abstract...General statement 1261 Mica schist 1261 Sillimanite schist and sillimanite-garnet schist 1261 Impure quartzite...formation 1264 Oliverian magma series 1264 New Hampshire magma series 1265 Kinsman quartz monzonite 1265...Igneous bodies 1275 Oliverian magma series 1275 New Hampshire magma series 1275 Faulting—silicified zones...quadrangles 1251 2. Mt. Monadnock rising above the New 2. Columnar section for Monadnock area.. 1254 England |
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| were metamorphosedto the chlorite zone through sillimanite-orthoclase zone. Some of these units proved to...to be fossiliferous even in the sillimanite zone. Early on, a relationship was recognizedbetweenhigh...the Merrimack synclinorium. New mapping near Mount Monadnock, based on the new stratigraphic sequence,has... INrnonucltotl We discussan area in the central New England Appalachiansalong a tectonic belt extendingfrom...first proposal published in the Guidebook of the New England Intercollegiate Geological Conference in |
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| Western Acadian metamorphism, central and western New England T. R . A R M S T R O N G , R . J . T R A...and State University, Blacksburg, VA 24061-0420, USA ABSTRACT The two major Early to Middle Palaeozoic...that lies along, or slightly above, the kyanite-sillimanite boundary on a P-T diagram. There is little or...conditions for the highest grade rocks known in New England: T = 650-750" C, P = 4.5-6.5 kbar for granulite...Planetary Sciences, M.I.T., Cambridge, MA 02139, USA. 415 416 T . R. A R M S T R O N G , R. J . T R |
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| geochemistry of graphite vein deposits from New Hampshire, U.S.A. DOUGLAS RUMBLE, III* and THOMAS C. HOERING...origin occur throughout central New Hampshire. Veins truncate sillimanite-grade, metasedimentary rocks of...contain quartz. tourmaline, ilmenite. rutile, sillimanite, muscovite or chlorite. Vein mineralogy is generally...carbonates. INTRODUCTION THE GRAPHITE DEPOSITS of New Hampshire are veins filled with graphite, co-precipitated...rare (CAMERON and WEIS, 1960). Recent work in New Hampshire, however, has revealed a surprising abundance |
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| in central Massachusetts and south-western New Hampshire: evidence for contrasting P - - T trajectories...- S r ages from four representatives of the New Hampshire Plutonic Series (Lyons & Livingston 1979) indicate...Garnet-Cordierite-Sillimanite-K-feldspar "~" Sillimanite--K-feldspar I~ Sillimanite-M uscovite--K-feldspar...uscovite--K-feldspar IT[ S illimanite-M uscovite ~I Sillimanite-Staurolite IK Kyanite-Staurolite I A Andahisite-Staurolite...showing evidence for pre-Acadian high-pressure sillimanite-orthoclase grade metamorphism with Acadian kyanite |
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| ENCLOSING SCHIST, LOVEWELL MOUNTAIN QUADRANGLE' NEW HAMPSHIRE* , ' By Fnao Benr...the southeastern part of the sunapee quadrangle, New Hamsphire. Adjacent pelitic schists of the Littleton...assemblages biotite-garnet-oligoclase-quartz-sillimanite biotite-garnet-oligoclase-quartz-siliimanite-orthoclase...Lovewell Mountain quadrangle, southwestern New Hampshire' Heald (1950,p. 65-67) also gave chemicalanalysesof...Generalized geologic map of a part of south-western New Hampshire (after Billings, 1955), showing the southern |
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| Paleozoic New Hampshire plutonic series granitic and darker rocks, pegmatite dikes E. Vermont & N. New Hampshire:...mostly Dev., Waits River & Gile Mtn. fms.; Ul New Hampshire: mostly Dev. Littleton fm.; low-high grade metasediments...metasediments & minor metavolcanics SE New Hampshire only: Merrimack group slates, phyllites & schists...into ground Winooski & Dunham marbles, Monkton & Cheshire quartzites, etc. = as above west of Champlain...i ES [42| ROADSIDE EOLOGY of Vermont and New Hampshire Bradford B. Van Diver C FR ox MOUNTAIN |
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| of the Ammonoosuc Volcanics from southern New England, USA. Based on stratigraphic and geochemical evidence...lie at the south end of the Keene Gneiss Dome in southern New Hampshire, U.S.A. (Fig. 1a). These and...locality I38 at the south end of Keene Dome in S.W., New Hampshire, U.S.A. (geology after Robinson 1982b)...(b) Field relations at locality I38, south end of Keene dome (unpublished mapping by P. Robinson and J.C...contain the assemblage staurolite-muscovite-sillimanite and have yielded temperature estimates of 550– |
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| Selected Bibliography of Andalusite, Kyanite Sillimanite, Dumortierite Topaz, and Pyrophyllite in the... Selected Bibliography of Andalusite, Kyanite Sillimanite, Dumortierite Topaz, and Pyrophyllite in the...______-____________________________________ -________ Sillimanite _ _________________________________________________...SELECTED BIBLIOGRAPHY OF ANDALUSITE, KYANITE SILLIMANITE, DUMORTIERITE, TOPAZ, AND PYROPHYLLITE IN THE...compilation of 566 references on the kyanite, or sillimanite, group of minerals and pyrophyllite to December |
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| Gedrite-Cordierite-Gneiss from Southwestern New Hampshire, USA by JOHN C. SCHUMACHER1 AND PETER ROBINSON...composed of combinations of the aluminous minerals sillimanite (Sill), kyanite, corundum (Cor), staurolite (St)...of diffusing components) between gedrite and sillimanite controlled the location of mineral growth. The...proportions of non-Fe-Mg minerals (quartz and sillimanite) appear to determine which continuous Fe-Mg reactions...134) at the south end of the Keene gneiss dome, southwestern New Hampshire, USA (Fig. 1). The distinctive |
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| 144 ' L. D. Sanders— The Status of Sillimanite as an Index of Metamorphic Grade in the Kenya Basement...injection or migmatitization and the distribution of sillimanite. Occurrences of that mineral in knotted bodies...reviewed and the field relationships between sillimanite-bearing metamorphosed pelitic sediments and faserkiesel...concluded that sillimanite in the migmatites is derived from partly assimilated sillimanite gneisses, which...non-migmatitized Basement System. The regional stability of sillimanite rather than kyanite over a great area suggests |
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| 21206 Treasurer—Carl Krotki 170 West End Avenue, New York, N. Y . 10023 Assistant Treasurer—Jack T. Burrus...CONNECTICUT The Thames Valley Rockhounds, New London County, began the new season with an idea packed program...graders in Willimantic about rocks. — Tools for the New Haven Min eral Club's field trip to the Sayerville...Fossil Collecting. This Club was guests of Keene Mineral Club (Keene, N. H.) on a recent field trip for (?)...Brazilian minerals and his trip to Brazil. — The Cobb County Gem and Mineral Club, Marietta, went to the Grisson |
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| 1995 Petrology of the regional sillimanite zone,west-centralNew Hampshire, U.S.A., with implications for...Sciences,RensselaerPolytechnic Institute, Troy, New York 12180, U.S.A. Mlrrrrrw J. KonN Department...Institute, Troy, New York 12180, U.S.A. Ansrugr Sillimanite from the regional sillimanite zone in west-centralNew...west-centralNew Hampshire is fibrolitic and overprints F, folds (nappe stage) of earlier mica foliation. Regional...Regional sillimanite zone samples show no evidence for earlier staurolite parageneses,despite the fact |
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| Beryl Resources of New Hampshire GEOLOGICAL SURVEY PROFESSIONAL PAPER 353 Prepared on behalf of the...with the New Hampshire State Planning and Development Commission Beryl Resources of New Hampshire By JAMES...Commission^ and in part in cooperation with the New Hampshire State Planning and Development Commission UNITED...Page, James Jeffers, 192ftBeryl resources of New Hampshire, by James J. Page and David M. Larrabee. Washington...Commission, and in part in cooperation with the New Hampshire State Planning and Development Commission. Bibliography: |
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| Copper Queen Mines (Cochise Co.), Ariz. ARKANSAS—A new locality for selenites has been found in Arkansas...mile west of the community of Levesque in Cross County. This locality may also be given as 6 miles east..."Kyanite, Sillimanite and Andalusite in Georgia (pp. 9-21). One locality in Habersham County should fascinate...time since I have sent in any items relative to new finds. I must send in a few to keep Iowa up to par...miles south of Frankfort (Franklin Co.), Ky., for a new highway. The place has become a sort of rock hunters |
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| 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 of the Grafton and Keene districts __ _ Sources of pegmatites _______________________...quality __ AnalyHis of the wartime mica industry of New England ________________________________________...Androscoggin County ______________________ _ Berry feldspar quarry __________________ _ Cumberland County ___ |
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| the pelitic Devonian Littleton formation of New Hampshire have been analyzed spectrographically for trace...represent all grades of metamorphism from shales to sillimanite schists and gneisses. The average concentrations...requirement, but the Appalachian region of New Hampshire seems ideal. The complex geology of this area...fossiliferous shales near the Connecticut River to sillimanite gneisses in the White Mountains and beyond. Samples...from the western and southwestern regions of New Hampshire. Unfortunately, the low-grade rocks are confined |
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| STRUCTURE AND PETROLOGY OF THE SUNAPEE QUADRANGLE, NEW HAMPSHIRE BY CARLETON A. CHAPMAN ABSTRACT The rocks of...of the Sunapee quadrangle, in southwestern New Hampshire, are chiefly metamorphic in origin and range...this belt of rocks consists of well-bedded mica-sillimanite schist and quartzite. To the east the rocks of...381 382 C. A. CHAPMAN—SUNAPEE QUADRANGLE, NEW HAMPSHIRE CONTENTS TEXT Page Introduction 382 General...geology of the Sunapee quadrangle in west-central New Hampshire. The mapping of this quadrangle completes a |
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| org/cgi/alerts to receive free e-mail alerts when new articles cite this article Subscribe click www...of H20 and COj. The Littleton formation of New Hampshire is a series of pelitic rocks, but is not completely...Bequest of the nian Littleton formation of New Hampshire. Geological Society of America defrayed the...containing sillimanite nor adjacent discrimination tests known as the t-test and the to sillimanite-bearing...contain sillimanite or are adjacent Bankier, 1954) reveal the significance of differ- to sillimanite-bearing |
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| 5251 Broad Branch Road, NW Washington, DC 20015, USA E-mail: drumble@carnegiescience.edu E LEMENTS ,...has been found in the Archean Stillwater (Montana, USA) and Proterozoic Bushveld (Republic of South Africa)...cross” polarized-light extinction; Walpole, New Hampshire, USA. (B) Tangential-graphite spherulite (colored)...in quartz (dark-colored); Mt. Kearsarge, New Hampshire, USA. (C) Clump of radiating graphite grains (light-colored)...(featureless background), from a plutonic granitoid; New Hampshire, USA. (D) Radiating graphite (light-colored) with |
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| index. Supt. of Docs. no.: I 19.16:888 1. Geology-New England. 2. Berkshire Hills, Mass. I. Series: United...metasedimentary cover rocks, the Dalton Formation and Cheshire Quartzite. Upper ( ?) and Middle Ordivician to...Lower Cambrian miogeosyn1 City College of New York, New York, N.Y. and DAVID S. HARWOOD clinal...contains recumbently folded Dalto Formation and Cheshire 1 2 TECTONIC STUDIES OF THE BERKSHIRE MASSIF...BERKSHIRE MASSIF Rocks of the Dalton Formation, Cheshire Quartzite, Stockbridge and W alloomsac Formations |
