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| I. Jacobson, Denver, CO Anthony R. Kampf, l.A. County Museum of Natural History, CA Virgil W. Lueth,... 5 36 86 Chips from the Quarry Connoisseur's Choice: Topaz from Granite Pegmatites, Limoeiro Mine,...Brazil: At the Natural History Museum of Los Angeles County, Carl A. Francis and Aaron Celestian 89 Who's...column beginning on page 36. Chips from the Quarry T UCSON: In trying to come up with a new way...cm high, Himalaya mine, Mesa Grande, San Diego County, California; E: Tourmaline, 13.8 cm, Madagascar; |
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| essential minerals—feldspars and quartz. Ordinary granite usually has a limited range of grain size which...ber with an igneous melt crystallizing to make granite may have crystals of quartz, feldspars, micas,...important part of the essential minerals of a granite and re main within the liquid portion of the melt...pegmatites may have been derived from the Sebago granite pluton. Less conspicuously, the Topsham pegmatites...fluorine-deficient ones. Water, Replacement, and Aplite The idea that water was important in the late-stage |
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| Stettin Complex, Wausau Syenite Compley, Marathon County, Wisconsin, USA……………………………………………..21 DOLGOPOLOVA...petrogenetic monitor of the evolution of the Tres Arroyos-granite-pegmatite system (Badajoz, Spain)…………………………………...agardite-(Y) and Pb-rich agardite-(Nd) from miarolitic granite of Cuasso al Monte, Varese province, (Southern...characterization of an unknown metamict phase from Tuften quarry, Larvik area, S Norway…………………………………………………………………………………………………………...pegmatites and their wall rocks, Piława Górna, Poland: implications for the origin of pegmatite melt |
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| Origin of miarolitic pegmatites in the Königshain granite/Lusatia Rainer Thomas, Paul Davidson PII: DOI:...Origin of miarolitic pegmatites in the Königshain granite/Lusatia, LITHOS (2016), doi: 10.1016/j.lithos.2016...Origin of miarolitic pegmatites in the Königshain granite/Lusatia Rainer THOMAS1 and Paul DAVIDSON2* Helmholz...in the Königshain granite of the Lusatia region of the Bohemian Massif. This granite is characterized...pegmatites (up to 1 m) in the uppermost levels. This granite also shows evidence of varied forms of transport |
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| most important granite districts. Thus, its publication will be welcomed by our granite producers and...and by all who are interested in the science of granite. Very respectfully yours, GARLAND PEYTON Director...Mountain granite (quartz-monzonite) _ Pegmatite dikes _____________________ ·------------Aplite dikes ...-------------Structures of the Stone Mountain Granite (quartz-monzonite) ---------------------------------------...__________________________ Origin of the Stone Mountain Granite ______________________________ 73 74 7-J 75 75 |
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| STETTIN COMPLEX, WAUSAU SYENITE COMPLEX, MARATHON COUNTY, WISCONSIN. T. W. Buchholz1, A. U. Falster2, and...tabular syenite, amphibole syenite, and syenite aplite. During the past several decades we have amassed...Ravine pegmatite on the west side of the old Dehnel quarry (confirmed via EMP [electron microprobe], XRD [X-ray...aegirine from the Summit prospect and the Dehnel quarry consistently contains about 0.9 wt. % Li2O. Arfvedsonite...Li2O, and riebeckite from the Ravine Dike, Dehnel quarry, contains 1.2 wt. % Li2O. Finally, analyses of |
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| These intrusions at Bagdad, Copper Basin, and Poland Junction intrude the Yavapai Supergroup, which...deposits located peripheral to the Big Bug stock near Poland Junction. If time allows we may visit Proterozoic...sulfide systems that are exposed near Bagdad and Poland Junction. Phil Blacet, John Hawley, and Chris Schmitz...with the Laramide stocks in the Groom Creek to Poland Junction area. George Ryberg of Rouge River resources...Exploration prepared the field trip log from Prescott to Poland Junction. Pat O'Hara will present an overview of |
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| OFFICE CONTENTS. INTRODUCTION THE OCCUKHENCE OK GRANITE IN MAINE, BY GEORGE OTIS SMITH. Page. Geographic........ 14 Granite proper..........................I............................ Granite in general....Part I. Scientific discussion Continued. Page. Granite proper Continued. Maine granites Continued. Rock........:.............:. Text-book references on granite and '' black granites "........... ...... Part....................................... Tests of granite............................................... |
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| the Pala Chief and Elizabeth R layered pegmatite-aplite dikes, Pala District, California, and the significance...significance for felsic melt evolution. The aplite is characterized by alternating bands of white, finegrained...laminations, which indicate a homogeneous melt at the aplite scale. Compared with the composition of gahnite...incompatible character of Zn in evolving pegmatite-aplite melts and shows the usefulness of gahnite as a...indicate a source of granitic pegmatite-aplite. Keywords Gahnite . Aplite . California . Elizabeth R . Pala |
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| of the rocks________________.__ __ Granites and granite gneisses of Connecticut, by Herbert E. GregoryName...Plicated gneiss structure_________________________ 47 Granite dikes________________________________ 48 Pegmatite...Pegmatite dikes_______________________________ 48 Aplite dikes__________________________________ 49 Mineral...__________________ Voorhis quarry _________________________ Ritch quarry _____________________ _____...__________ Norwalk ____________________________. __ Hall quarry __________________________ Hartford County____ |
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| Geological Society kopernika 11/25 PL-00359 Warsaw Poland tomek@spiriferminerals.com A New Find of TOPAZ...localities in Europe, with more than forty active granite quarries that yield numerous pockets every year...MINERALS in the Strzegom Granites Poland Figure 1 (top left). map of Poland with Strzegom and Warszawa noted...(approximate area of occurring granite intrusion) with Żółkiewka I quarry noted. map prepared by Steffen...(Mineralien-Welt) Figure 4 (below). View of Żółkiewka I quarry. Joanna Gajowniczek photo. Volume 86, July/August |
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| chemical compositions of garnet from an orthogneiss–granite–pegmatite complex at Pribyslavice, Moldanubian...(I-type), durbachite (ultrapotassic) and peraluminous granite (S-type), along with granitic pegmatites (Novák...of this region. The Pribyslavice orthogneiss–granite–pegmatite complex belongs to a welldefined discontinuous...portions of aplite–pegmatite. A small stock of undeformed fine-grained muscovite granite (50 m across...current outcrop) and numerous variable dykes of aplite–pegmatites (1 m thick) intrude the orthogneiss |
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| other granite-aplites from other areas behaved in the same way and chemical analyses of granite-aplites...this end in view. Some of the older analyses of granite-aplites, where there was reason to doubt the accuracy...rhyolites, quartz-porphyries, etc., and a study of the granite-aplites, he reached the conclusion that the ternary...these discrepancies is that Vogt, in dealing with granite-aplites as a whole and with the groundmasses of...the base of the tetrahedron. The fact that many granite-aplites and related rocks lie on, or close to, |
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| PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADOXT E. Wrrr. HerNnrcu, Department of Mineralogy...Hornblende gabbro. Pikes Peak granite .. . . . Aplite and fine-grained granite . . Diabase Injection gneiss...three to twelve miles west of Canon City, Fremont County, Colorado, includes about 30 square miles that...pre-Cambrian rock units are present: Pikes leak granite, Idaho Springs schist, and injection gneiss. The...batholith of Pikes Peak granite, a red, coarse-grained, porphyritic, microcline granite, was emplaced. Late |
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| ______ PABT I. Scientific discussion_______ _ Granite proper______________________ General features____...examples_________________ Fluidal cavities in granite gneiss.________ Fluidal cavities in small dikes...Colors______________________________ 80 Olive-green granite ___________________ 81 Minerals on joint fac... Physical properties _ Textbook references on granite and " black granites " PAI*T II. Economic discussion_...discussion_ General features________~ __ Tests of granite _ Chemical analysis Determination of CaCOs Test |
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| VARIEGATED MARBLE SOUTHEAST OF CALERA, SHELBY COUNTY, ALABAMA. By CHARLES BUTTS. About 3£ miles a little...body of marble could be obtained in an open-cut quarry, but ultimately the rock would have to be mined... NELSON DALE. INTRODUCTION. The granites and granite quarries of Milford, Quincy, Rockport, and Becket...the Survey.1 In June, 1910, the remaining active granite quarries of the State were visited and the results...crushed stone have been excluded, but the felsite quarry of Revere has been included, although it is not |
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| online 18 November 2004 Abstract The Podlesı́ granite stock (Czech Republic) is a fractionated, peraluminous...and P-rich, and Sn, W, Nb, Ta-bearing rare-metal granite system. Its magmatic evolution involved processes...2004 Elsevier B.V. All rights reserved. Keywords: Granite; Breccia; UST; Magmatic layering; Feldspars; Quartz...recently. Explosive brecciation in a subvolcanic tin–granite 324 K. Breiter et al. / Lithos 80 (2005) 323–345...crystals alternating with layers of fine-grained aplite. A special type of UST are comb quartz layers (Kirkham |
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| Staurolite Stilbite Zoisite BRISTOL COUNTY The major portion of Bristol County shows sedimentary rocks consisting...porphyritic pink orthoclase granite cut by numerous qlartz string_ ers and pegmatitic granite. The low cliffs of...similar to the Diamond Hill area of Providence County. The Bristol area, in the vicinity of portsmouth...druses. KENT COUNTY Fringes of sedimentary rocks are found in the east section of this county in contact...Moosup Valley,which runs northward into Providence County, in this discussion.. The rocks of this extreme |
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| melting/anatexis, and retrograde metamorphism. The parental granite only has a say in the plutonic pegmatites. Pegmatites...thrustbound Au-As-Sb-(Hg) and Fe-Cu-Pb-Zn deposits and granite-related Sn-W-Mo, Pb-Ag-Zn-(In)Cu and U deposits...similar but strikingly different terms, aplite granites and granite aplites. Fine-grained granitic rocks...resemble in their outward appearance homogeneous granite aplites, often emplaced without any temporal or...much larger size than a granite aplite (Fig. 2a, b). They are called aplite granites and known to develop |
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| Georges Mills 15 Summary 15 Part 2 The Conway Granite rvG *E> \1-1- £ g « «-. -.. ». »- - *»- - _»«... General Summary 27 The Concord Granite 28 The Com/ay Granite 29 Acknowledgements 30 References...Uranium and thoriun distribution of the Concord Granite, along 1-89 median strip, New London, N.H. Figure...analyses 11 Table 3. Modal data for the Conway Granite 18 ii 4 Selected uranium and uranium-thorium...northwest-trending fracture zone in the Devonian Concord Granite in recent rock cuts along Interstate Highway 89 |
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| of Annorica and central Europe. The different granite phases within the composite plutons and the various...The age of formation (crystallisation) of the granite batholith, and (ii) the possibility of measurably...measurably different ages for the individual granite bosses according to their position along their WSW-ENE...phases of intrusion within a single composite granite occurred, extending on through periods of aplitic...The use of the age of intrusion of the Dartmoor granite as a critical point in establishing the Carboniferous-Permian |
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| ....................... Textural varieties of granite................................................................................ Coarse-grained granite.................................................................... Porphyritic coarse-grained granite....................................................................... Medium-grained granite......................................................................................... Fine-grained granite................................................. |
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| .................................. CHAPTER I. GRANITE IN GENERAL .......................................................... 1.......... Varieties of granite.............................................................................. Varieties of the granite ........................................... Mineral................................................ Granite.................................................................................. 49 Individual quarry areas......................................... |
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| _____________________ Dawley Canyon area, Elko County-______--_--_------_-_-_-_-_---_-_ Location and...iotite-muscovite granite._.____-_-_--_--------_--__---_---Albite granite and aplite.-..-------------...dikes_____________-_-_-_-__------___-_-___-___-_ Pegmatite-aplite relations....___-_-_---_---_-___-__---__-_-_ Line...Pass. -__-_--__--_---__--_--_--__------White Pine County.-._____________________________________________...171 172 172 173 nt IV CONTENTS Page Pershing County.-_____________---___-____--___________-__--__---Lakeview |
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| ............. Granite.......................................................... Aplite................."St. Cloud red" granite.................................. 50 " St. Cloud gray" granite.................. 51 Rockville granite......................................... 52 Porphyritic granite....................................... Mixtures of red granite and gray granite .................... Diabase or trap dikes........... 57 57 58 59 59 60 61 62 62 63 64 64 Quarry methods............... ....................... |
