 | Franchini, M., Lira, R., Meinert, L., Rios, F. J., Poklepovic, M. F., Impiccini, A., Millone, H. A. (2005) Na-Fe-Ca Alteration and LREE (Th-Nb) Mineralization in Marble andGranitoids of Sierra de Sumampa, Santiago del Estero, Argentina. Economic Geology, 100 (4) 733-764 doi:10.2113/gsecongeo.100.4.733 | Journal (article/letter/editorial) |
| Na-Fe-Ca Alteration and LREE (Th-Nb) Mineralization in Marble and Granitoids of Sierra de Sumampa, Santiago del...stages of carbonates and widespread fenitization of marble, granite (496 ± 2.9 Ma), and alkaline and siliceous...intracontinental magmatic event of Devonian age. Albite (Ab97-99) + aegirine (Ae70-92Ja1-11Q6-19) ± hematite...pyrochlore overprint and crosscut granite and comendite outcrops in a 15 km2 area; locally, the Na-rich assemblage...(Ae86-91Ja1-8Q6-11) ± Mg-arfvedsonite and minor albite (Ab98-99) in adjacent marble, with multiple stages of late Ca-Mn-Mg-Fe |
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| OTIS SMITH, DIRECTOR BULLETIN 589 THE CALCITE MARBLE AND DOLOMITE OF EASTERN VERMONT BY T. NELSON...ILLUSTRATIONS. Page. PLATE I. Map of Vermont showing the marble and dolomite localities described. II. A, Polished....................................... FIGURE 1. Marble outlier on George Butler farm, in Johnson, Lamoille.................... 11. Tentative section across marble and schist in W. C. Wheeler pasture, Searsburg...The region covered includes the most extensive marble industry in the United States. The present report |
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| zone during closure of the Penninic ocean in the Upper Cretaceous and Tertiary (Fig. 1). From base to top...sequence of Jurassic metacarbonates ("Hochstegen Marble Formation") and Cretaceous metapelites and metapsammites...duplex of the cover sequences of the Hochstegen Marble Formation and the Kaserer Group, underlain by thin...Mineral abbreviations (Tables 1-4 and text): Ab albite, Act actinolite, Amph amphibole, Ap apatite, Barr...texture goniometry at Forschungszentrum Jülich (Germany). Recalculated pole figures {001},{010} describe |
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| Leoben/ Austria 5-10,1981, held at Berchtesgaden/Bavaria, FRG The present volume contains the greater number...the Alps, held at Berchtesgaden (Bavaria), Federal Republic of Germany, in 1981. The various contributions...146 V. Rudert Hydraulic Lime from Marienstein (Bavaria) (With 6 Figures) .... 155 Geochemistry of Alpine...Sauerland (Rheinisches Schiefergebirge, Western Germany) (With 2 Figures) ...............................(Sauerland, Rheinisches Schiefergebirge, West Germany) (With 8 Figures) ............................ |
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| megasequences, the Lower Paikon Megasequence and the Upper Paikon Megasequence, as shown in Fig. 5. Having...Robertson, in press). Within the Paikon Massif, the upper contact of the Gandatch Formation is locally well...3). Marble interbeds vary from coarse white, sugary marble, to finer-grained grey to pink marble. Beds...schistose intercalations contain quartz, chlorite, albite, white mica (i.e. phengite; Baroz et al., 1987)...paper, with a fundamental division into lower and upper megasequences. See Table 1 for the initial stratigraphic |
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| regionally metamorphosed marbles which belong to the Upper Tectonic Unit of the Rhodope Zone occur as intercalations...intercalations within gneisses and amphibolites. In one marble horizon abundant Al-rich minerals like corundum...marbles with some mica-schist intercalations and an Upper Tectonic Unit consisting of augen gneisses often...The marbles described in this paper belong to the Upper Tectonic Unit. For the rocks of this unit a Barrow-type...identified (Liati). In the area of Xanthi, the main marble occurrences of interest from a petrologic view |
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| 3: Looking north across the Soper River to the marble bands (white) in the background which have the...R Y / F E B R U A R Y 1983 13 Figure 4: Marble outcrops (white) of the south lazurite deposit in foreground...the most abundant being garnet-biotite gneiss and marble. I n addition, there are minor intrusions of pegmatite...minerals of interest to collectors are in marble. The marble is easily recognized as it is much lighter...the sur rounding gneiss (Fig. 4). The dolomitic marble is very coarse grained with cleavable masses up |
 | Essene, Eric J., Claflin, Christopher L., Giorgetti, Giovanna, Mata, Pilar M., Peacor, Donald R., Á rkai, Pé ter, Rathmell, Mark A. (2005) Two-, three- and four-feldspar assemblages with hyalophane and celsian: implications for phase equilibria in BaAl2Si2O8-CaAl2Si2O8-NaAlSi3O8-KAlSi3O8. European Journal of Mineralogy, 17 (4) 515-535 doi:10.1127/0935-1221/2005/0017-0515 | Journal (article/letter/editorial) |
| BaAl2Si2O8–CaAl2Si2O8–NaAlSi3O8–KAlSi3O8. Hyalophane occurs with albite and microcline in a very low grade (anchizonal...little Ba in albite and only limited Na in hyalophane. One marble from the garnet zone has albite (Ab95-98)...(Cn65Sl3An2Ab9Or24) and celsian (Cn92Sl3An1Ab2Or2). The albite and oligoclase are complexly intergrown and may...unmixing during cooling. A marble in the sillimanite zone contains albite (Ab95-98Or2-3), oligoclase...inclusion of celsian (Cn67An1Sl2Ab2Or91) in an albite. Sanidine from the Peshtigo monzonite in Wisconsin |
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| sandstone, siltstone, shale and minor limestone. Marble in the Chilliwack yields fossils ranging in age...appears to be a fault bounded block within extensive outcrops of Easton Metamorphic Suite. Tabor and others...(phyllite), ribbon chert, basalt, and very rare marble. Commonly in or associated with the Elbow Lake...a protolith of oceanic chert and basalt. Minor marble and small bodies of metamorphosed ultramafic rock...constituents of the unit are silicic schists (metatuff), marble, and amphibolite. Zircons from a dacitic metatuff |
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| garnets, small biotite crystals and a little felspar (albite-oligoclase and microcline). In general, apart from...gneisses are poorly exposed and only four isolated outcrops were recorded. Three of these are weathered kyanite... Examples of this process are the formation of albite or potash felspar. Eskola (1939, pp. 375-392) adopted...chlorites, producing enrichment in potash felspar or albite. Turner and Verhoogen (1951, p. 487) suggest that...consist dominantly of microcline, orthoclase and albite-oligoclase. The granitoid gneisses are believed |
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| Silurian (?) age are the oldest sequence. Schist and marble, representing metamorphosed graywacke, siltstone...elevations. A heavy early-spring snowfall will obscure outcrops at elevations as low as 2,000 feet until June... surveying the marble resources of southeastern Alaska, examined the marble outcrops along the western...seas (Pybus Dolomite). Volcanism, was minor. The Upper Triassic Hyd Formation forms the fourth sequence...northwestward to Point Ketreat (pi. 1), schist and marble form the backbone and the western side of the island |
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| Pennsylvania._---______---.____-__.__ Cockeysville marble.-.-.__________________________ Wissahickon formation...Diaphthoritic schists.-_---___-__________._-___ Albite-chlorite schist facies _--___._-________-___ Composition..._______________________________________________ 50 3. A, Upper part of the Vintage dolomite overlain by Kinzers...northwest of Bellemont; B, Closely folded micaceous marble of Conestoga limestone in quarry half a mile northwest... 8. VI slate; C, Specimen of mica schist from upper beds of Chickies quartzite_ .-_-_-__--__--_-__- |
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| the plutonic contacts. Rocks indicative of the albite epidote hornfels facies occur in the interior of...high bulk-rock oxidation and high Mn component. Marble inclusions have been metasomatically altered by...grossularite are the common calcsilicate phases. Marble pebbles are present along with metachert pebbles...given by Holdaway. Calculation of the effect of the albite component on the reaction (6) was made assuming...tremolite4 + calcite + quartz (indicative of the albite epidote hornfels facies) occurs in the central |
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| sandstone Albite-actinolite schist Hornblende andesite Plagioclase-chlorite-zoisite schist ^ Albite-chlorite-epidote...schist Lenses of greenstone within the green schist Marble Intrusive rocks Economic geology Gold History...alteration 5 7 7 7 of correlation Correlation of marble and interbedded rocks Tentative correlation of...soapstone, magnesite, and asbestos Limestone or marble, building stone, road metal, and riprap References...highly sheared Calaveras (?) formation 3. Photo of marble lenses, white rock, in faulted zone, 4. Photo of |
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| Samples 4, 5, 6, and 7 were collected from marble outcrops in the central to south-central Adirondack...MATERIALS AND METHODS Eight samples of diopside marble were selected for this study, from the Adirondack...large marble xenolith, located at Cascade Slide in the Mt. Marcy Quadrangle (Fig. 1). The marble is a...Metamorphic grade is granulite facies east of CCZ and upper amphibolite facies to the NW. Oxygen diffusion...Fig. 2. Diopside grains dissolved from calcite marble (sample 1) from Cascade Slide (locality # 1–3 in |
 | Dzikowski, Tashia J., Cempírek, Jan, Groat, Lee A., Dipple, Gregory M., Giuliani, Gaston (2014) Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera of British Columbia. Lithos, 198. 281-297 doi:10.1016/j.lithos.2014.03.030 | Journal (article/letter/editorial) |
| Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera...Giuliani, Gaston, Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera... ACCEPTED MANUSCRIPT Origin of gem corundum in calcite marble: The Revelstoke occurrence in the Canadian Cordillera... ACCEPTED MANUSCRIPT ABSTRACT PT The calcite marble-hosted gem corundum (ruby, sapphire) occurrence...scapolite. Other silicate SC layers within the marble are composed of: (1) diopside + tremolite ± quartz |
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| VHMS deposits in the district are found in the upper part of the Skellefte Group. The total thickness...rock immediately northwest and west of the mine (outcrops 97027–97029; Fig. 3). Within the amphibole bands...tonalite contact as observed in the open pit. Outcrops to the north of the open pit (Fig. 3) consist...Volcaniclastic rock Granodiorite Revsund granite Outcrops: Fold axis or lineation Shear zone fabric S3...(left), from outcrops at edge of northern wall. The marble unit can be traced from the old marble quarry in |
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| include granite and metamorphic rocks, black granite, marble, and sandstone, together with a variety of minor...................................91 Chapter 4 Marble Central western region .........................................................99 vi Other marble deposits in the Cheela–Wyloo area ..................................107 Nanutarra red and white marble quarries ........................................................... 7 Syenogranite tors on the upper slopes of Mount Melville in Albany. ........... |
 | Camacho, A., Lee, J.K.W., Zhao, J., Abdu, Y.A., Fayek, M., Creaser, R.A. (2020) A test of the interlayer ionic porosity model as a measure of argon diffusivity in trioctahedral micas. Geochimica et Cosmochimica Acta, 288. 341-368 doi:10.1016/j.gca.2020.07.041 | Journal (article/letter/editorial) |
| tested this model by dating micas from several outcrops using the 40Ar/39Ar and Rb/Sr techniques along...et al. (2012) of micas from a small cluster of outcrops within the Grenville Province in Canada. Because...amphibolites, and orthogneisses, all metamorphosed to upper-amphibolite facies. Deposition of sediments is considered...followed by amphibolite-facies metamorphism in the upper crust at ∼1050– 1020 Ma, to heating below 500 °C...Sample sites The area of study consists of several outcrops along Westport Road (Provincial Road No. 8), located |
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| ................. 267 XIX—Exposures of Sherman Marble (A and B) ................... 271 XX—Genlogical...Hotel .................................. Proctor, Marble Mills ....................... ....I\1 Proctor,...Hill ...............k. J. Crosby 683 Springfield, Upper Main Street .......... . J. Crosby 567 Springfield...Union Village, Thetford ......................... Upper Graniteville ............................... Vail...following beds are exposed in the area of this county: Upper Trenton, found abundantly in all parts of the county |
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| the first campaign is to be found between the upper course of the Indus river, from Skardu as far west...the Chogo Lungma and the Sosbun glaciers, and the upper valley of the Hunza river. Two other light expeditions...173 178 182 185 187 187 . Slates 2.8. Kaferan Marble 2.9. Sur Khan Limestone 188 a COMPARISON OF THE...THE GEOLOGY OF THE UPPER VALLEY ANID THE ZEBAK SURROUNDINGS (A. DEsIo) 2. UPPER V. — 281 281 WARDUJ...GLACIAL DEPOSITS Introduction Moraines of the upper Shiwa valley sad Shakh _— wating Lake Shiwa area |
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| large amounts is very common on tbt dumps and even outcrops close to the sur• face at the Aat inclined shaft... f!oo: the with T ente cont ly i wat1 The upper tunnel is 68 feet long, 5x6 feet in area and contains...have con• sisted of two levels, the upper level opened up by the upper tunnel and the lower level by the...was opened by means of the main shaft. The two upper levels have merged to• gether forming one large...evidently coincided with the floor of the upper tunnel. The upper tunnel is ve.r y dangerous to enter by |
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| Springer-Verlag 1994 Textural and isotopic development of marble assemblages during the Barrovian-style M2 metamorphic...Abstract. A detailed petrological analysis of the marble assemblages observed within the M2 metamorphic...assemblage that has been overprinted by mid to upper amphibolite assemblages in a high-temperature Miocene...et al. 1993). On Naxos, this overprint reaches upper amphibolite conditions+ Using 4~ analysis, Wijbrans...rocks are interlayercd with thin (< 50 m) calcite marble horizons. Rare dolomite horizons may also be found |
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| no evidence of isotopic exchange between marble and the upper mantle into which it was subducted. Correlation...margin sediments, that have been subducted into the upper mantle to depths of 80 km or more and subsequently... 2. Methods Samples for the regional survey of marble d18 O and d13 C values were culled from existing...and Sheppard Ž1986.. Staining of thin sections of marble with Alizarin Red-S facilitated modal analysis...minor schist and amphibolite. Layers and blocks of marble, eclogite, and ultramafic rocks occur within the |
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| Massif (Greece) on top of a lower-grade dolomite marble unit. The Tertiary thrust represents a major phase...dolomite marble during the thrusting of the hotter upper plate. Conversely, the hanging wall marble unit...between the initial temperatures of the lower and upper marble units, and this leads to the conclusion that...sample location sites in study. U.T.U. signi®es the Upper Tectonic Unit Fig. 1 Geological map of Tinos, showing...Basal Marble Unit (M1 Marble of Melidonis 1980) consists of the Lower Dolomite marble and the Upper Marble |
