 | | 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...1983, 1990), one of these dykes is classified as camptonite, based on mineralogy (kaersutite and biotite...to as the Porter Square camptonite. The age of the Porter Square camptonite has not been es- Atlantic |  | | Journal (article/letter/editorial) | | between the province of Quebec and the states of Maine, New Hampshire, and Ver mont. The interval between...ments. Still later than these are the dikes of camptonite, diabase, and bostonite which cut any of the...between the province of Quebec and the state of Maine. It occurs in the townships of Emberton, Chesham...and Stoke. On the Saint Francis in the former township, through the influence of these undulations, th...S 503 ville to the northw est com er of the township, and in Stoke they present two parallel ranges |  | | 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 |  | | Book | | Map 4.4 an 3|] — 9 Z| = g FO-1 88—203 Franklin yen Map 4.2 go¥io0 . Map 4: FO-71—190 O...Pain e\ (olierh UC aa TY fix y @ CR620 FRANKLIN — OGDENSBURG, NJ MINING HERITAGE GUIDE by John...with Corel Photo-Paint 12°. This publication, Franklin—Sterling Hill NJ Mining Heritage Guide, is copyrighted...the version number, e.g., Park, John R., 2012, Franklin—Sterling Hill NJ Mining Heritage Guide, v1.2 Stonerose...purpose of this work, the Franklin—Ogdensburg area consists of the immediate Franklin-Ogdensburg area, plus |  | | Report (volume) | | of Leadville, Colorado, with atlas, by Samuel Franklin Emmons. 1886. 4°. xxix, 770pp. 45 pi. and atlas...meridian of 76° 30', from Tompkins County, New York, to Bradford County, Pennsylvania, by Henry S. Williams...cents. 16. On the Higher Devonian Faunas of Ontario County, New York, by John M. Clarke. 1885. 8°. 86pp. 3...57 pi. Price 25 cents. 38. Poridotite of Elliott County, Kentucky, by J. S. Diller. 1887. 8°. 31pp. 1 pi...Brief review of the classification of the basic dike rocks.................. Local geological details |  | | Journal (article/letter/editorial) | | CAMPTONITE DIKES NEAR BOULDER DAM,1 ARIZONA' faN Cal,rpeplr* ANo Enwanr T. ScuBNx** Arsrnncr Near...Near Boulder Dam occur camptonite dikes of possible Quaternary age characterized by disamphibole (kaersutite)...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...uncommon character. 3. Composition: the rock is a camptonite and the amphibole most nearly resembles kaersutite |  | | Journal (article/letter/editorial) | | and classification in the quantitative system. Camptonite (ourose ( ? ) ) ...............................the occurrence of granite-felsophyre in Alleghany County, Virginia, and several dikes of basalt near the...the State line on the north, in Pendleton County, West Virgima. Recent investigations by the writers, assisted...four new types—quartz gabbro, nepheline syenite, camptonite, and teschenite (feldspar monchiquite)— occurring...study includes the discovery and location of every dike or exposure of igneous rock within the lim its of |  | | Journal (article/letter/editorial) | | Aschaffenburg, Germany Somerville, Massachusetts Ogunquit, Maine Rossland, British Columbia Little Belt Mountains...whether of greater specific gravity than the molten dike-rock or not, because they are forced upward by the...so that stream gravels fell in and were caught in the ascending magma. In rare instances a dike may ascend...walls near the place where they are frozen in the dike. The inclusions are now nearly weathered out of...Pigeon Cove, Cape Ann, is a labradorite porphyry dike of very coarse grain, 25 feet wide and traceable |  | 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...the amphibole in the fine-grained matrix of the camptonite. The magnesio-hastingstite macrocrysts have virtually...mantle source. Camptonite dikes are very common on Mont Royal. Like the Lafarge dike, they likely arose |  | | Journal (article/letter/editorial) | | laccoliths are aligned on both sides of 8 central dike sw8rm along 8 north-northe&-trending fracture zone...and laccoliths; and (5) 8 very large dike (part of the central dike swarm) which crosses U.S. Highway 135...following locations: (1) an exposure of 8 o8mptonite dike on U.S. Highw8y 93 about 8 miIes south of Boulder... Montana. The c8mptonite dike was s8mpled at 8 rosd cut exposure, The dike is 4 feet thick and has chilled...post-ectrly-Pliocene age (D-ON et al., 1967). However, the dike itself w8s dsted at 3.7 my by means of K-Ar methods |  | | Book | | THE MINERALS OF FRANKLIN AND STERLING HILL CLIFFORD FRONDEL THE MINEt 4-S OF FRANKLIN AND STERLING HILL...mineralogy, describes the unique ore deposits at Franklin and Sterling Hill, New Jersey. For over two hundred...hundred different minerals have been identified at Franklin and Sterling Hill, including forty-four that had...helped to stimulate international interest in Franklin and Sterling Hill. Part Two traces the area’s...complete list of current references. The Minerals of Franklin and Sterling Hill is illustrated with over thirty |  | | Journal (article/letter/editorial) | | exploitation of the unique mineral deposits of Franklin and Sterling Hill is synonymous with the development...deposits began at the surface in open-pits, both at Franklin and Sterling Hill. Random exposures revealed rich...avocation of the wealthy. AN INTRODUCTION To the Franklin and Sterling Hill, New Jersey, Mineral Deposits...wall rock, ex posed the deepest reaches of the Franklin ore body to underground development, as it foretold...close, 91 mineral species were known to occur at Franklin and Sterling Hill, 15 of them first described |  | | Journal (article/letter/editorial) | | Several times in past articles I've referred to Franklin, N. J. as the Mecca for fluorescent mineral collectors...accessible as is the area around Franklin, N. J. For this reason the ardent Franklin collector has become increasing...has been diminishing at an alarming rate. The Franklin of old has long gone, or has it? Years ago, when...offered new life and new realms of conquest to the Franklin collector. A gentleman by the name of Amos Phillips...possession of some 40 acres of the most interesting Franklin property ever to fall into the hands of a private |  | | Journal (article/letter/editorial) | | 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...PLATE 1 FIG. 1. A 1-6 m wide kaersutite lamprophyre dike containing numerous ocelli. Note the general alignment...The size of these ocelli varies with that of the dike ranging in diameter from 0-05 to 0-2 cm in dikes |  | | 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...000 and 61,000 years. The faults do not displace stream terraces which are geomorphologically similar to...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 |  | | Book (volume) | | Mineralogy by Vandall T. King and Eugene E. Foord Maine Geological Survey DEPARTMENT OF CONSERVATION Walter...Resources Information, Maine Geological Survey Walter A. Anderson, State Geologist Maine Geological Survey...DEPARTMENT OF CONSERVATION 1994 Copyright ©1994 by the Maine Geological Survey, Department of Conservation. All...photograph: Fluorapatite, Pulsifer quarry, Auburn, Maine (2.2 cm specimen), Harvard Mineralogical Museum...Wendell E. Wilson, ©1985. The laws and policies of Maine and the United States prohibit discrimination in |  | | Journal (article/letter/editorial) | | ............................................ Camptonite..................................................................................... Origin of dike fractures.........................................0.1 per cent of the exposed bedrock. The largest dike is 60 feet wide and is exposed discontinuously for...presumably a part of the same dike (PI. 1). Apparently this same dike reappears north of the limits of...FOWLER-BILLINGS— IGNEOUS DIKES Each point represents a dike, and the lithology of each is indicated by an appropriate |  | | Report (issue) | | .. 30—Pegmatite dike cutting granite-gneiss, Bull Hill, Grafton, Vt 31—Djabase dike cutting Bellows Falls...in Canada and others east in New Hampshire and Maine. (In Professor Wolff's article, page 137 of this...exposed, as great longitudinal ridges and valleys, to stream erosion, and that erosion was retarded as it approached...and those in Vermont, as well as those in Canada, Maine, and New Hampshire are enumerated in Professor Wolff's...Devonian folding that affected New Brunswick and Maine so strongly appeared only as an uplift in western |  | | Journal (volume) | | 000 years ago as the ice was leaving. j: - • FRANKLIN 'Z_____ CLINTON Albons Cit PlottsburghC -----... and a larger swarm of over 150 monchiquite, camptonite and trachyte (mostly bostonite) dikes in the...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,...Early Cretaceous time. Tectonic implications of dike-stress relationships in New England have been discussed |  | 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...), monchiquite/camptonite, tephriphonolite, and phonolite/tinguaite. The felsic dike rocks only occur |  | | Report (volume) | | Dorset Mountain, Danby, showing joints near trap dike...................................... XI. Memorial...in Franklin County, and the black calcite marble quarried on Isle la Motte, in Grand Isle County, are...State, in Washington County, and the chrome mica schist of Shrewsbury, in Rutland County, have also been included...including the small disused quarries in Orange County, are not here considered. The field work was done...important papers by Prof. Perkins on the geology of Franklin and Chittenden counties and the formation to which |  | | Catalog/List | | Fairfield County, Branchville White xlline with cymatolite, good study ... New Mexico Taos County, near Dixon...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...sodium potassium alumino-silicate Arizona Final County, Christmas Dark green cleavages in andesite .. |  | | Journal (article/letter/editorial) | | accompanying the intrusionof a lamprophyre(camptonite)dike, the changeresultingin a metamorphosed ore...Graton, L.' C.: The occurrence of copper in Shasta County, California. Geol. Surv. Bull. 430, p. 84, I9XO...thoseof the R6dhammertypein Norway, and in Shasta county,California. Sodicporphyries,which includequartz...for the Bully Hill mining district in the same county, reaches similar conclusions. Genesisof the Ore... for a distanceof approximately•o feet from the dike to a sul- phideaggregatein whichthe high-temperature |  | | 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 |  | | Journal (article/letter/editorial) | | 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...classified as monchiquite and dyke interiors as camptonite, an anomaly that, has recently been resolved...cm diameter) drilled out; thin borders of the camptonite around ocelli were carefully removed by grinding |
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