 | | Journal (article/letter/editorial) | | equivalent assemblages involving Mg-silicate (forsterite and/or clinohumite) + chlorite (and/or spinel)...clintonite; chemical composition; fluorine; chondrodite marble; Moldanubian Zone; Bohemian Massif 1. Introduction...garnet and clinohumite in eclogite included in marble of the UHP Su-Lu terrane, China. Phase relations...producing clintonite involve calcite, spinel, forsterite and diopside (Rice 1979), less commonly also...baddeleyite, occurring almost exclusively in dolomitic marbles. This regional-scale contact LP metamorphism |  | | Journal (article/letter/editorial) | | determine the possible inclusion of the method in marble provenance studies. The methodology used was based...cathodoluminescence spectroscopy; electron microprobe analysis; marble; calcite; dolomite; provenance 1. Introduction...from the outset that the examination of regional marble sources is a difficult task. First, the geologic...in the examined properties, even within a single quarry, due to e.g., primary or secondary compositional...over large distances. In addition, highly valued marble layers were also often quarried in their entirety |  | | Journal (article/letter/editorial) | | 132 133 136 I~'TRODUCTION. THE crystalline dolomitic marbles near Port Shepstone have formed the subject...have formed part of an intrusive tongue in the marble, while the other reputed instances of 'inclusions'... Fig. 1 . - - G e o l o y i c a l mal~ o f the Marble Delta. Scale I 0 1 Sand~tour 2 Miles a.d ...in an account of the economic resources of the Marble Delta. 1 While the tract is one full of problems...During the course of the survey the main al~a of the marble was found to cover a tract ahnos~ 4 miles long |  | | Journal (article/letter/editorial) | | Isotopic Evidence for Limited Fluid Flow through Dolomitic Marble in the Adamello Contact Aureole, Cima Uzza...dolostone. Stable isotopic data from dolomite in dolomitic marble in the contact aureole [d18O = 29·7 ± 1·3‰...d13C (–2·6 to –6·7‰) calcite values in siliceous marble xenoliths entrained in small gabbroic stocks at... Such siliceous marble probably formed by Si and Al metasomatism of dolomitic marble during infiltration...equivalent lithology occurs outside the aureole. Brucite marble, which occurs in xenoliths and as reaction rims |  | | Journal (article/letter/editorial) | | emanations, silicates were developed in some of the dolomitic marble, and some of the basic dark gneisses were...series in the region consists of very thick dolomitic marble, with abundant intercalated dark gneiss,generally...obviously owe their origin to the silication of dolomitic marble. However, most of the dark gneisses appear... NEPHELINE AND CORUNDUM RACKS OF ONTARIO 739 The marble was much altered by the intrusives, with development...productsl natrolite, gieseckite,and hydronephelite as lower-temperature alteration products. Mineral proportions |  | Owen, J. Victor, Hanley, Jacob J., Kerr, Mitchell J., Stimson, Matthew, Boucher, Brandon (2019) Geochemistry of pink corundum-bearing feldspathic gneiss, Frenchvale quarry, Cape Breton Island, Canada: metamorphism of albitised, Fe-poor clastic rocks. Mineralogical Magazine, 83 (2) 249-260 doi:10.1180/mgm.2018.165 | Journal (article/letter/editorial) | | corundum-bearing feldspathic gneiss, Frenchvale Quarry, Cape Breton Island: metamorphism of albitized...2018.165. Abstract Frenchvale Quarry, once mined for dolomitic marble, contains pink corundum-bearing...associated with carbonate platformal rocks (now marble), corundum is confined to the feldspathic rocks...cutting dolomitic marble (Pêcher et al., 2002), but elsewhere, ruby occurs in calcitebearing marble associated...feldspathic gneiss associated with dolomitic marble is exposed in a 0.6 km long quarry near Frenchvale, Cape Breton |  | | Journal (article/letter/editorial) | | com/loi/tigr20 The Role of Fluid for Diamond-Free UHP Dolomitic Marble from the Kokchetav Massif a Yoshihide Ogasawara...(2005): The Role of Fluid for DiamondFree UHP Dolomitic Marble from the Kokchetav Massif, International Geology...reserved. The Role of Fluid for Diamond-Free UHP Dolomitic Marble from the Kokchetav Massif YOSHIHIDE OGASAWARA1... Abstract A diamond-free, dolomite-bearing UHP marble showing a banded structure occurs at Kumdy-kol...occur in this marble (sample no. Y665): zone A = Ti-clinohumite–bearing dolomitic marble; zone B = dolomite |  | | Journal (article/letter/editorial) | | of gold-bearing skarn deposits in the middle and lower Yangtze River Valley and adjacent regions Yiming...accepted 28 April 1999 Abstract The middle and lower Yangtze River Valley and adjacent regions are the...limestone, dolomitic limestone and dolomite of the Triassic, Carboniferous-Permian and Middle to Lower Cambrian...scapolite, whereas magnesian skarns are dominated by forsterite, spinel, diopside, phlogopite, chondrodite and...gold-bearing skarn deposits, especially in the middle and lower Yangtze River Valley and adjacent regions. Some |  | | Journal (article/letter/editorial) | | which dominantly consists of calcitic marble and dolomitic marble with minor intercalations of pelitic...from unrecrystallized limestone through calcitic marble to skarn. It was initiated with volatilization...than 70% of the isotopic depletion in the calcitic marble is attributed to the infiltration process. With...wollastonite are commonly observed in the marble. The dolomitic marble was comparatively less depleted in heavy...heavy isotopes compared to the calcitic marble and formed under a wide range of XCO2 and low fluid – |  | | Journal (article/letter/editorial) | | in the Hwanggangri Mineralized Zone (HMZ) in dolomitic marbles of the Cambro-Ordovician Samtaesan Formation...tremolite in calc-silicate rock within the dolomitic marble. Calc-silicate rock, consisting mainly of...tremolite, diopside, and forsterite, or wollastonite-bearing assemblages in the marble, depending on the bulk...600 jC in the calcitic marble, while buffered reaction of the dolomitic marble occurred at higher XCO2...minerals constituting the ore and the silicate marble, most of which show end-member mineral compositions |  | Liu, Yan, Deng, Jun, Shi, Guanghai, Sun, Xiang, Yang, Liqiang (2011) Geochemistry and petrogenesis of placer nephrite from Hetian, Xinjiang, Northwest China. Ore Geology Reviews, 41 (1) 122-132 doi:10.1016/j.oregeorev.2011.07.004 | Journal (article/letter/editorial) | | the following reactions: dolomitic marble → tremolite, or dolomitic marble → diopside → tremolite. White...nephrites contain fewer mineral inclusions and have lower FeO and MnO contents. All the amphiboles in the...located at the contact between Precambrian dolomite marble and intermediate–acidic igneous rock emplaced during...found within the dolomite marble or in the contact between dolomitic marble and granodiorite or granite...situated ~40 km southeast of Liushen village in Yutian County (81°55′E, 36°12′ N; nephrite location No. 12 in |  | | Journal (article/letter/editorial) | | April 1993 Abstract Metasomatic columns hosted in dolomitic marbles in the thermal aureole of the Traversella...garnet (A3). In group B, tremolite instead of forsterite occurs in the first two zones. In group C columns...heterogeneities in the dolomitic marbles. The presence of tremolite in group B instead of forsterite is due to the...the lower temperature prevailing in the external part of the contact aureole. Chemical data as well as...C were formed through the interaction of the dolomitic marbles with fluids with different ].tFe203, ItAl203 |  | Zhao, Yiming, Dong, Yongguan, Li, Daxin, Bi, Chengsi (2003) Geology, mineralogy, geochemistry, and zonation of the Bajiazi dolostone-hosted Zn–Pb–Ag skarn deposit, Liaoning Province, China. Ore Geology Reviews, 23 (3) 153-182 doi:10.1016/s0169-1368(03)00034-9 | Journal (article/letter/editorial) | | quartz monzodiorite and Middle Proterozoic dolomitic marble of the Gaoyuzhuang Formation as well as along...pronounced. From the intrusive contact zone to dolomitic marble along the NW-trending fault system, three...Ag). Magnesian skarn is composed of diopside, forsterite, tremolite, spinel, phlogopite, chondrodite,...their frontal part constantly reacted with the dolomitic carbonate wall rocks to form different types of...and lead (zinc) were mainly derived from the deep lower crust, while the Middle Proterozoic wall rocks may |  | | Catalog/List | | Ampanihy District Madagascar £25 13 OLIVINE variety FORSTERITE good sharp pale green single crystal 1.5 xlcm...magnetite with minor black Ludwigite fibres. Old marble quarry Kilchist Skye 4x4 £7 29 GOETHITE quite rich...large and smaller radiations on slate High Down Quarry Devon 5x2.5 £10 4 53 TILASITE rich pinkish massive...of minute Astrophyllite. St Peters Dome. El Paso county Colorado USA 5x4.5 £15 j i 60 SERANDITE small...on the top surface 4x3cm Succor Creek, Malheur County Oregon USA £12 74 ARAGONITE Crystallised nodule |  | | Journal (article/letter/editorial) | | (Lyadzhvardara and others), Ukraine (Delavetskii quarry in the Rakhov Massif, Carpathians), in Afghanistan...Italian Mountain in Colorado [11], San Bernardino county [12], and the Big Horn Mine in California [6, 13]...assemblages in handspecimens from the southern quarry [1] is as follows (Fig. 3): (I) leucocratic microcline–perthite...deposit is hosted in diopside skarns and spinel–forsterite calciphyres developing after dolomites in the...disseminated forsterite, spinel, and pyrite. The lazurite–forsterite vein located in the middle quarry of the |  | | Journal (article/letter/editorial) | | low-temperature dolomites and certain types of dolomitic marble can be extremely difficult because of limitations...in well-ordered low-Mn--low-Fe dolomites and dolomitic rocks which yielded ESR spectra free from nonLorenzian...aureole of tonalite Ballachullish area, stock--forsterite marble NW Scotland Proterozoic carbonatite Palabora...it contained an extensive suite of fairly pure dolomitic marbles (the Appin limestone) which had been subjected...limestone crops out to the west, north and south of the Lower Devonian Ballachullish granite -- a post-tectonic |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University... Menezes and J. M. Martins The Jensen quarry, Riverside County, California ............................noticed by Bill on a specimen from the San Venanzo quarry, Terni, Umbria, Italy, and was later recognized...zone 2, and the other consists of a rock with a lower P 20 5 (4.5%) and medium MgO grade (around 5%) called...Dolomite Uranpyrochlore Fluorapatite Valleriite Forsterite Galena , The Mineralogical Record September-October |  | | Journal (article/letter/editorial) | | various rock types (calcic hornfels, gneiss, dolomitic marble) occurring in the contact aureole of the dioritic...hornfelses; T.R.=12 ppm to 200 ppm for the skarn on dolomitic marbles), but all the inner zones of these different...silicates ranges from the values observed in the dolomitic marbles (0.70874 to 0.70971) to the Isr of the...formed at the expense of several rock types: dolomitic marbles (exoskarns); calcic hornfelses; gneisses...expense of the contact metamorphic parageneses. At lower temperature, in the secondary stage, hydrated phases |  | | Report (chapter) | | sgrande52@gmail.com) Abstract: High-grade metamorphic rocks – marble, charnockite, meta-anorthosite, metapelite, clinopyroxenite...Nirgua Complex, Yaracuy; (d) rounded clasts of marble in the basal conglomerate of Casupal Formation...following diverse situations: (1) As xenoliths of dolomitic marble, mafic granulite and anorthosite in the Oligocene–Miocene...charnockite with boudins of felsic charnockite and dolomitic marble, intruded by clinopyroxenite dykes (this block...feet depth (Fig. 1a), which contain similar dolomitic marble, associated with high-grade pelitic gneiss |  | González-Pérez, Igor, Fanlo, Isabel, Ares, Gonzalo, Gervilla, Fernando, González-Jiménez, José María, Acosta-Vigil, Antonio, Arranz, Enrique (2023) The Unconventional Peridotite-Related Mg-Fe-B Skarn of the El Robledal, SE Spain. Minerals, 13 (3) 300 doi:10.3390/min13030300 | Journal (article/letter/editorial) | | with metasomatic forsterite, and (2) the magnetite–szaibelyite zone hosted in dolomitic marbles. In the...proximal magnesian silicates (e.g., diopside, forsterite, and spinel), Accepted: 1 February 2023 Published:...borates ores, and (3) periclase or monticellite marble in direct contact with Mg-rich carbonate protolith...singularity of this deposit is that it is hosted in dolomitic marbles of the contact aureole produced by the...Reales Unit is the uppermost unit including in its lower portion a ca. 4 km thick slice of a subcontinental |  | | Journal (article/letter/editorial) | | , 1997, 15, 169–182 Ultra-high-pressure (UHP) marble and eclogite in the Su-Lu UHP terrane, eastern...100029, China A B S TR A CT A large mass of dolomitic marble including many eclogite blocks occurs in orthogneisses...China. The marble consists mainly of dolomite, calcite (formerly aragonite), graphite, forsterite, diopside...conditions, based on stability of the dolomite+forsterite+aragonite (now calcite)+graphite assemblage,...surrounding orthogneisses. Key words: Eclogite; marble; P–T path; Su-Lu; ultra-high pressure (UHP). I |  | | Catalog/List | | slightly glassy granular mass. Crestmore_Riverside County California USA 5x4 £15 7 ASTROPHYLLITE five golden...of minute Astrophyllite. St Peters Dome. El Paso county Colorado USA 5x4.5 £15 9 SERANDITE small pink-orange...nodule, polished on one side 3.5 x3cm Keweenaw County Michigan USA £25 17 METASTIBNITE thin red coating...hydrocarbon USA 3.5 x3.5 £8 Fort Duchesne Uintah County Utah 20 MALACHITE a polished all over piece ,...intergrown crystal sections about 8x3cm Mono Lake, Mono County, California USA £8 -~ -·.- 66 BRUCITE pure yellow |  | | Journal (article/letter/editorial) | | carbonate rocks are found in the sec tion of the lower (Iyengra) and upper (Dzheltula) series. In the Iyengra...thinking of geologists that the very presence of marble, calciphyre, or carbonate-silicate rocks is often...silicate-carbonate rocks can be distinguished: a) dolomitic marble and calciphyre, b) magnesian silicate-calcite...exposures on the Timpton and Aldan rivers). Dolomitic Marble and Calciphyre The marbles are dense fine-grained...these rocks is very simple: dolomite + calcite + forsterite + minerals of the humite group + spinel + magnetite |  | | Journal (article/letter/editorial) | | compositions, and mechanisms of vein formation in dolomitic marble roof pendants of the Bergell intrusive complex...mineralogically zoned clinohumitechondrodite-calcite, forsterite-calcite, diopside-calcite, and tremolite-calcite...ratios calculated for complete reaction of the dolomitic wall rock with a fluid which provides the required...SYMMETRICALLY ZONED reaction veins occur in dolomitic marble xenoliths in the Bergell granite (tonalite)...replace dolomite along fractures that cut across dolomitic marble xenoliths. Quantitative characterization of |  | Noh, Jungrae, Kim, Changyeob, Samuel, Vinod O., Jang, Yirang, Park, Seung-Ik, Kwon, Sanghoon (2020) Fluid Infiltration and Mass Transfer along a Lamprophyre Dyke–Marble Contact: An Example from the South-Western Korean Peninsula. Minerals, 10 (9) 828 doi:10.3390/min10090828 | Journal (article/letter/editorial) | | Infiltration and Mass Transfer along a Lamprophyre Dyke–Marble Contact: An Example from the South-Western Korean...metasomatic characteristics of a lamprophyre dyke–marble contact zone from the Hongseong–Imjingang belt...Korea. The lamprophyre dyke intruded into the dolomitic marble, forming a serpentinized contact zone. The...micron-scale porosity, which dissolved dolomite in the marble and precipitated the observed olivine-bearing peak...variations in metasomatized rocks. Keywords: dyke–marble contact; metasomatism; dissolution-precipitation; |
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