 | | Journal (article/letter/editorial) | | Triassic 40Ar/39Ar age for a camptonite dyke in Cambridge, Massachusetts, USA Martin E. Ross Department...Northeastern University, Boston, Massachusetts 02115, USA Date received: 28 November 2009...ABSTRACT A 2.4 m-thick megacryst- and xenolith-rich camptonite dyke briefly exposed during excavation of a subway...± 4 Ma using separates prepared from a ferro-kaersutite mega-phenocryst. This age is the oldest yet reported...par préparation d’un mégaphénocristal de ferro-kaersutite. Il s’agit de la plus ancienne datation établie |  | | Journal (article/letter/editorial) | | AMYGDULAR CAMPTONITE DIKES FROI,{ I,IOUNT JO, MOUNT NIARCY QUADRANGLE, ESSEX COUNTY, NEW YORKX Howanr...Washington25, D. C. Asstnact Three small, amygdular camptonite dikes intrude the Marcy anorthosite in Mount...Mount Jo, Mount Marcy quadrangle, Essex County, N. Y. They show a northeasterly strike, 80o to 90" dip, and...thick. They are similar to the post-Ordovician camptonite dikes from the Lake Champlain valley. Three modal...and hornblende. The dikes may be classified as camptonite (family 3216H, Johannsen), subbasalt (DVM7-75 |  | Martin, Robert F., Alarie, Éric, Minarik, William G., Wáczek, Zsófia, McCammon, Catherine A. (2016) Titanium-Rich Magnesio-Hastingsite Macrocrysts In A Camptonite Dike, Lafarge Quarry, Montreal Island, Québec: Early Crystallization In A Pseudo-Unary System. The Canadian Mineralogist, 54 (1) 65-78 doi:10.3749/canmin.4359 | Journal (article/letter/editorial) | | TITANIUM-RICH MAGNESIO-HASTINGSITE MACROCRYSTS IN A CAMPTONITE DIKE, LAFARGE QUARRY, MONTREAL ISLAND, QUÉBEC:...D-95440 Bayreuth, Germany ABSTRACT A prominent dike of camptonite cuts the Middle Ordovician Tétreauville...operated by Lafarge Canada Inc. The ‘‘Lafarge’’ dike is strikingly porphyritic, with largely anhedral...with ferri-kaersutite resembling the amphibole in the fine-grained matrix of the camptonite. The magnesio-hastingstite...mantle source. Camptonite dikes are very common on Mont Royal. Like the Lafarge dike, they likely arose |  | | Journal (article/letter/editorial) | | liquid, and an immiscible CO2-rich fluid phase. Kaersutite-bearing lamprophyre with felsic ocelli yields...have been observed between the several types of dike, indicating that they were all intruded at about...of the dike. A very fine-grained zone up to 1 cm wide may be present along the margin of the dike, and...less fine-grained zones commonly occur within the dike. Ocelli are not found within these zones, but tend...marginal PLATE 1 FIG. 1. A 1-6 m wide kaersutite lamprophyre dike containing numerous ocelli. Note the |  | | Journal (article/letter/editorial) | | CAMPTONITE DIKES NEAR BOULDER DAM,1 ARIZONA' faN Cal,rpeplr* ANo Enwanr T. ScuBNx** Arsrnncr Near...Dam occur camptonite dikes of possible Quaternary age characterized by disamphibole (kaersutite) phenocrysts...volatiles in the dike magma. Chemical analyses of the amphibole and of the chilled margin of a dike are presented...presented and discussed. INrnooucrroN Camptonite dikes occur within a limited area bordering U. S. Highway...Composition: the rock is a camptonite and the amphibole most nearly resembles kaersutite. Rocks with such alkaline |  | Ulrych, J., Novák, J. K., Lang, M., Balogh, K., Hegner, E., Řanda, Z. (2006) Petrology and geochemistry and K–Ar ages for Cenozoic tinguaites from the Ohře/Eger Rift (NW Bohemia) Neues Jahrbuch für Mineralogie - Abhandlungen, 183 (1) 41-61 doi:10.1127/0077-7757/2006/0059 | Journal (article/letter/editorial) | | evolved rocks in the alkaline (camptonite/monchiquite – phonolite/tinguaite) dike suite of the Cenozoic Roztoky...Ma for five samples suggest that the tinguaitic dike rocks are coeval with the subvolcanic members of...preferred strike directions for compositionally distinct dike rocks (Ulrych & Balogh 2000, Cajz 2003) and the...0˚, 40˚ and steep dips (80 to 90˚). The average dike width is ~ 1m but widths range from 10 cm to 10...monzodiorite, sodalite syenite with diopside – kaersutite cumulates (?) that are also present in camptonites |  | | Journal (article/letter/editorial) | | of analcime—carbonate and an alkali feldspar-kaersutite-rich lining. Virtually identical zoning is developed...common to both lamprophyre host and ocellus. Kaersutite is progressively enriched in Fe, Mn, Alvl, and...the swarm the dyke association of peridotite, camptonite, trachyte, tinguaite, and carbonatite is readily...of this model. Fractional crystallization of camptonite results in phonolitic late stage liquids which...damkjernitic peridotite. Vesiculation of the camptonite results in separation of a volatile phase (fluid |  | | Journal (volume) | | the east it is bounded by the St. Francis and Connecticut River basins, and to the south by the Hudson... and a larger swarm of over 150 monchiquite, camptonite and trachyte (mostly bostonite) dikes in the...compositions and mineralogies which include augite, kaersutite, olivine, phiogopite, andesine and analcime....petrographic and geochemical descriptions of the dike rocks. Our studies have been integrated with related...Hill stock, a small syenitic complex (Fig. 1) . Camptonite dikes are present throughout both subgroups, |  | | Report (issue) | | P. Ambers and R. P. Wintsch hole, Moodus, Connecticut 171 Geochemical and geological criteria for...A. Bernitz, and J. S. Fout origin, eastern Connecticut 187 Thrust napping versus fold napping in the...of the Boston Basin . 235 of southeastern Connecticut Nicholas Rast and James W. Skehan Index . ...suggests that the mid(?)- to late Proterozoic Middlesex Fells Volcanics consist of alkalic to transitional...are from a 1.5-k-deep core drilled at Moodus, Connecticut. Based on their findings, the authors suggest |  | | Journal (article/letter/editorial) | | Lowell,Lowell,Massachusetts01854, USA Abstract. Many lamprophyre dike and sill rocks in the Monteregian...suggests the late stage introduction of CO2. 7. Camptonite sill at the north end of the Papineau Avenue...accessory apatite and magnetite. 8. Monchiquite dike previously exposed at Visitation Island in the Rivi~re...carbonate, chlorite, and accessory apatite. 9. Camptonite sill exposed in an abandoned quarry at St. Vincent...sphene, and accessory apatite and zircon. 6. Camptonite dike in the eastern hornfels collar of Mount Rougemont |  | | Report (issue) | | border. The Lost Trigo fault near Cibola in Yuma County, Arizona is within lower Pleistocene or upper Pliocene...southwest side of the Big Maria Mountains in Riverside County, California. The feature is 5.5 km long and 92...the western side of the Black Mountains, Mohave County, Arizona, forming a topographic depression with...southwest side of the Chuckwalla Mountains in Riverside County, California. Trenching of several aerial-photograph...Range-Whipple Mountains area in San Bernardino County, California (Carr and others, 1980). These faults |  | | Journal (article/letter/editorial) | | sericitized, and often show undulating extinction. Kaersutite occurs as elongated subhedral to euhedral phenocrysts...Skien. LITHOS12 0979) cially noteworthy that kaersutite is associated in these experiments with Ti-poor...not been observed in the plagioclase. Kaersutite Kaersutite is a pargasitic amphibole in which Ti ranges...about 0.5 to I atom per formula unit~ One typical kaersutite composition from sample $47 is presented in Table...Kesson & Price (1972) therefore conclude that kaersutite must be an accessory phase in the upper mantle |  | | Catalog/List | | Sodium aluminum silicate CLEA VE LANDITE Connecticut Fairfield County, Branchville White xlline with cymatolite...cymatolite, good study ... New Mexico Taos County, near Dixon Nearly pure white xlline lamellar mass . MOONSTONE...cerium aluminum silicate California Los Angeles County, Pacoima Canyon Large black tabular crystals in...iron silicate ACTINOLITE California San Bernardino County, Wrightwood Green prismatic crystalline mass ....CROSSITE Sodium iron silicate California San Benito County, Gem mine Compact blue-gray mass with natrolite |  | | Report (issue) | | ENGLAND (CNE) AND ATLANTIC CANADIAN MAGMATISM 1. Mafic Dike Suites Within Mesozoic Igneous Provinces of New...increasing volume. Subsequent pulses of ENA basalt in Connecticut are described by Philpotts as rising through...the feeder dikes in Connecticut that fed the initial ENA magma pulse (the Higinum dike) is projected into...Hampshire by Sundeen and Huff (Chapter 5) as the Onway dike. In Chapter 9 Jaroslav Dostai and J. Greenough provide...reports on eight diabase sheets and one associated dike from the central Newark Basin. He concludes that |  | | Journal (article/letter/editorial) | | Saint-Hilaire has yielded the largest crystals known. A DIKE NEAR McGILL COLLEGE In the middle of the nineteenth...States National Museum for 1904. the joints in a dike “near McGill College” contained “thin bladed crystals...aluminous, and is probably a zeolite” (Hunt, 1857). The dike rock also contained “brilliant cubic crystals, often...adjacent to the Redpath Museum revealed a feldspathic dike containing abundant dawsonite filling irregular...observation of dawsonite on the campus. The 1.5-meterwide dike had a near-vertical dip, a strike of about N74°W |  | | Book (volume) | | greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...gem-producing areas in the United States, admittedly. Connecticut has produced a few tourmalines, aquamarines,...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite...arranged alphabetically: P. B. Goodsell, Hartford, Connecticut, 44 p. Hentschel, G., 1983, Die mineralien der |  | | Journal (volume) | | s sueh as Ti-rieh chrome spineI, titanaugite, kaersutite-ferrokaers utite, and titanian phlogopite. lt...Ukraine, respectively. The mode of occurrence of kaersutite as overgrowths on spinifex pyroxenes or as interstitial...y determined stabi lity conditions of hydrous kaersutite requiring a minimum water pressure of at least...Department of Geology of the University of Maryland (USA). Other coworkers include Dr. Gerhard Brügmann from...silicates, such as augite and brown amphibole, kaersutite, are in many cases fresh but olivine is almost |  | | Report (volume) | | is different in richterite than in pargasite-kaersutite), but the methods works well within a given type...well as Fe2+ (i.e., FeO). Indeed, in studies of kaersutite, measurement of Fe3+/( Fe2+ + Fe3+) (e.g., McGuire...(1993) Crystal chemistry of Fe3+ and H+ in mantle kaersutite: Implications for mantle metasomatism. Am Mineral...implications of [6] 4+ Ti partitioning in pargasite and kaersutite. Eur J Mineral 11:345-354 Tiepolo M, Zanetti...Fluor-magnesiohastingsite from Dealul Uroi (Hunedoara county, Romania): Mineral data and crystal structure of |  | | Book | | data from his subsequent research. Dr. Peter Tice (USA) provided a copy of his M.Sc. and Ph.D. theses. Dr...discussion on MSH rock types with LH. Dr. Dave Richerson (USA) provided details of the collecting history of donnayite...specimens from its collection. Dr. Modris Baum (USA) generously provided specimens for research and photographs...Baum (USA), the late Henry Budgen (Canada), Gianfranco Ciccolini (Italy), the late Rock Currier (USA), Robert...Hawthorne (Canada), the late William Henderson (USA), Laszlo Horvath (Canada), Ole Johnsen and Dorrit |  | | Catalog/List | | Da m Black glassy crys ta l s imbedded in camptonite dike rock . ..... . . . . . . . . .. .. .. .. 2...KURNAKOVITE MICROCLINE ORTHOCLASE 10 - JASPER -- See KAERSUTITE KAOLINITE 12500-M-01455 l " 50 - l " # #/ |  | | Book (edition) | | Cruz County. Bandy collection. Jeff Kurtzeman. Cerussite on aurichalcite. 79 mine, Gila County. Wayne...Kurtzeman. Wulfenite on mottramite. 79 mine, Gila County. Wayne Thompson collection. Jeff Kurtzeman. Introduction...stalactite. Red Cloud mine, Trigo Mountains, Yuma County. Harvard University collection. Jeff Kurtzeman... Aurichalcite and hemimorphite. 79 mine, Gila County. Wayne Thompson collection. Jeff Kurtzeman. [3]...different mining mores. With the advent of the county governmental structure, however, the need for this |  | | Book (edition) | | Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...gemandmineralmuseum.arizona.edu) is located in the old Pima County Courthouse building at 115 North Church Avenue...on the market. The mines at Bisbee, in Cochise County, have produced large quantities of gem-quality...mineral stamp issued in 1992. At Morenci, in Greenlee County, gem-quality azurite was also commercially recovered...parallel to the grain. The Blue Ball Mine, in Gila County, has produced thousands of azurite nodules up to |  | | Report (volume) | | California-Bldg. 3 (Stop 533), Rm. 3128, 345 Middlefield Rd. • RESTON, Virginia-503 National Center, Rm...Volcanic Members of the Missisquoi Formation and a Dike Cutting the Standing Pond Volcanics, Southeastern... CHAPTER J The Piermont Allochthon, Northern Connecticut Valley Area, New England-Preliminary Description...Elements in the Vicinity of Mount Ascutney, Windsor County, Vermont Leslie J. Cox CHAPTER 0 Carbonate-Hosted...and Heavy-Mineral Concentrates from the Orange County Copper District, East-Central Vermont John F. Slack | | | Book (edition) | | Cruz County. Bandy collection. Jeff Kurtzeman. Cerussite on aurichalcite. 79 mine, Gila County. Wayne...Kurtzeman. Wulfenite on mottramite. 79 mine, Gila County. Wayne Thompson collection. Jeff Kurtzeman. -...stalactite. Red Cloud mine. Trigo Mountains, Yuma County. Harvard University collection. Jeff Kurtzeman... Aurichalcite and hemimorphite. 79 mine, Gila County. Wayne Thompson collection. Jeff Kurtzeman. [3]...different n1ining mores. With the advent of the county governmental structure, however, the need for this |  | | Book (edition) | | mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution. Formerly in...Bisbee District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St. Anthony Mine...Mine, Tiger, Pinal County Uranium and Vanadium Deposits 80 Monument Valley 81 63 78 il S: The Cameron...Apache County — 435 Cochise County 436 Coconino County 437, 438 Gila County 439 Graham County Greenlee...Greenlee County 440 441 LaPaz County 442 Maricopa County 443 Mohave County 444 Navajo County 445 Pima County |
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Camptonite dike, Middlefield, Middlesex County, Connecticut, USA