 | | 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...coexisting pyroxenes and garnets are diopside and andradite, indicating the high oxygen fugacity and low acidity...gold-bearing skarn deposits, especially in the middle and lower Yangtze River Valley and adjacent regions. Some |  | | Journal (article/letter/editorial) | | this contact. The general zonal sequencetoward marble is: garnet, garnet-pyroxene-sulfides, pyroxene-sulfides...low-iron diopsidesand intermediate grandites. Pure andradite, as overgrowthsand in cross-cuttingveins,becomesmore...maintain a constant lower limit of 55 mole percent andraditeand are zonedto pure andradite. Later garnets...with chalcopyrite deposition, consist of pure andradite. The iron content of pyroxene increases gradually...gradually and systematicallytoward the marble contact, from an average value of 36 mole percent hedenbergitein |  | | Journal (article/letter/editorial) | | April 1993 Abstract Metasomatic columns hosted in dolomitic marbles in the thermal aureole of the Traversella...The last zone is made of wollastonite (A 1), andradite-rich garnet (A2) or grossular-rich garnet (A3)...been induced by local heterogeneities in the dolomitic marbles. The presence of tremolite in group B...B instead of forsterite is due to the lower temperature prevailing in the external part of the contact...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...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...Cretaceous in age. Among them, the Middle Proterozoic dolomitic marbles are the most favorable ore-hosting strata |  | Jiang, Ying, Shi, Guanghai, Xu, Liguo, Li, Xinling (2020) Mineralogy and Geochemistry of Nephrite Jade from Yinggelike Deposit, Altyn Tagh (Xinjiang, NW China) Minerals, 10 (5) 418 doi:10.3390/min10050418 | Journal (article/letter/editorial) | | Yinggelike nephrite orebody occurs in the dolomitic marble near the intruding granitoids. Petrographic...[28–30], Jordanów and the adjacent areas in SW Poland [32,33], Taiwan and Manasi in China [34,35]. D-type...D-type nephrite forms along the contact between dolomitic marble and igneous intrusions [1], and is reported...Vitim (Siberia, Russia) [25,26], Złoty Stok (SW Poland) [33,36], and some new discoveries were made in...formed by contact metasomatic replacement of dolomitic marble by Si-rich aqueous fluids during felsic pluton |  | | Catalog/List | | 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...areas ____ ...., on Orthoclase with spots of andradite 4x4 Allt a' Mhuilinn Loch Borralan Scotland £10...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) | | 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 |  | | Journal (article/letter/editorial) | | alurgite, piedmontite, braunite, hollandite (and other lower oxides of manganese) with minor apatite, plagioclase...juxtaposition of manganese silicate rocks with dolomitic marble, regional metamorphism to almandine-amphibolite...exposed here and it is overlain directly b y the dolomitic marble of Bichua formation (youngest in the Sausar...Silicate Rocks (Gondite) 87 and finally by the dolomitic marble of Bichua formation. At Gowari Wadhona mine-area...contact of the manganese silicate rocks with dolomitic marble and pegmatite respectively. Preferential concentration |  | Alaminia, Zohreh, Mehrabi, Behzad, Razavi, Seyed Mohammad Hossein, Tecce, Francesca (2020) Mineral chemistry, petrogenesis and evolution of the Ghorveh-Seranjic skarn, Northern Sanandaj Sirjan Zone, Iran. Mineralogy and Petrology, 114 (1) 15-38 doi:10.1007/s00710-019-00688-6 | Journal (article/letter/editorial) | | oldest unit in the GS area composed of marble, dolomitic marble, greenschist, and amphibolite of Early...development of skarn, hornfels and crystallization of marble. The skarn is showing distinct textural, mineralogical...ratios. The presence of granditic (grossular-andradite) and subcalcic (grossular-almandine-spessartine)...northern SSZ, in which the main units are marble, dolomitic marble, greenschist, and amphibolite of Early...resulting in the development of skarn, hornfels and marble. The hornfels zone is limited and only observed |  | | Catalog/List | | obscure Feldspar group 3.5x2.5cm Kurumazawa Tone County Gurnma Prefecture Ja pan £22 --~ .,4, .~ ;';...34 PYRRHOTlTE pure metallic mass 4x3cm Shierglas Quarry Blair Atholl Scotland £6 37 AGRELLITE pure grey...(needs XlO) £25 8 .. J ..... ~ \..-". 124 Andradite with band of paler Celsian 4x3x2cm £7 °(.\· ...£5 Wheat Remfry St Austell Cornwall. 152 TIREE MARBLE pink calcite with small dark green areas of silicates...5x5cm £5 164 DOLOMITIC MARBLE white with some thin pyrite bands 5x3cm £6 Lengenbach Quarry, Binn Switzerland |  | | 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...alkaline district. 263 Jacupirangite Minerals Andradite (titanian) Nepheline Augite (titanian) Perovskite |  | | Journal (article/letter/editorial) | | and assimilation of silicates was predominant at lower temperature and/or felsic magma compositions. We...rocks of the Hortav&r complex consist of high-grade marble, calc-silicates, quartzite, and migmatitic gneiss...allanite. A few syenitic samples contain grossular–andradite garnet. The common type of granitic dike contains...are typical mafic phases, along with grossular–andradite garnet. Plagioclase ranges from An37 to An17...host rocks range from pure calcite marble through dolomitic marble (locally with forsterite and humite) |  | | Journal (article/letter/editorial) | | between intrusionrelated fluids and Permian limestone=marble, at shallow crustal levels. Field, chemical and...limestone, while the conversion of marble to grossular-andradite skarn, indicates Al-infiltration. Fluid...interaction between the syenitic pluton and Lower Permian limestone and marble host rocks, at shallow crustal levels...deposits; c centimetre-wide rinds of titanian andradite skarn around xenoliths of pyroxene-wollastonite...inter-fingering of wollastonite skarn (white) and marble (grey) at the Bartnik deposit. Images courtesy |  | Wang, Minfang, Shang, Xiaoyu, Zhang, Fucheng, Wei, Ketao, Wang, Wei (2019) In-situ major and trace element chemistry of melanite from Tieshan Fe–Cu skarn deposit, Hubei Province, Eastern China: Implications for hydrothermal fluid evolution. Ore Geology Reviews, 111. 102996 doi:10.1016/j.oregeorev.2019.102996 | Journal (article/letter/editorial) | | district, the largest ore district of the Middle–Lower Yangtze River Metallogenic Belt (MLYRMB) in Eastern...Tieshan pluton, which intruded the carbonates of the Lower Triassic Daye Formation. The orebodies are predominantly...and (dolomitic)-marble. EMPA analysis shows that the Tieshan garnets belong to high-Ti andradite, with...higher percentage of andradite are present in the rim (than in the core), indicating lower salinities and...Zhang et al., 2017; Zhou et al., 2017). The Middle–Lower Yangtze River Metallogenic Belt (MLYRMB) is one |  | | Journal (article/letter/editorial) | | large Iwanai-dake exposures and olivine-spinel quarry in peridotite of remarkably the center mass...to 0.2 was detected of 400 peridotite dake quarry olivine microprobe sections examined from by...diopside, and the mentioned cellite grains andradite, as IW chromian It as The 104, spinel, magnetite...and the Mg/(Mg-r-Fe*) ratio are 0.79, which are lower than the value of coexisting olivine , 0.91 (Fe*...ratios of Iwanai-dake mass. Perovskite grain Andradite 27 ilmenite the thin grains section. porphyroclast |  | He, Xiaolong, Zhang, Da, Di, Yongjun, Wu, Ganguo, Hu, Bojie, Huo, Hailong, Li, Ning, Li, Fang (2022) Evolution of the magmatic–hydrothermal system and formation of the giant Zhuxi W–Cu deposit in South China. Geoscience Frontiers, 13 (1) 101278pp. doi:10.1016/j.gsf.2021.101278 | Journal (article/letter/editorial) | | analyses show that the magnesian skarn hosted by dolomitic limestone is characterized by garnet of the grossular–...limestone is characterized by garnet of the grossular–andradite series, hedenbergite, wollastonite, epidote, and... 2020), and zoned mineralization (upper Cu and lower W ores; Chen et al., 2016), and differs significantly...the deposit. These include magnesian skarn in dolomitic limestone and scheelite–quartz–muscovite (SQM)... The JNB is located to the south of the middle–lower Yangtze River valley porphyry–skarn Cu–Au–Mo–Fe |  | | Report (issue) | | skarns enclosed in dolomitic marble (Jakobsberg, Sweden). Association: Andradite, franklinite, manganaxinite...minerals of Franklin and Sterling Hill, Sussex County, New Jersey. U.S. Geol. Sur. Prof. Paper 180, 98 |  | Feneyrol, J., Ohnenstetter, D., Giuliani, G., Fallick, A. E., Rollion-Bard, C., Robert, J.-L., Malisa, E. P. (2012) EVIDENCE OF EVAPORITES IN THE GENESIS OF THE VANADIAN GROSSULAR 'TSAVORITE' DEPOSIT IN NAMALULU, TANZANIA. The Canadian Mineralogist, 50 (3) 745-769 doi:10.3749/canmin.50.3.745 | Journal (article/letter/editorial) | | metasomatized graphitic gneiss overlain by a dolomitic marble unit. These rocks belong to the Neoproterozoic...crystallization in quartz-calcite veins. The dolomitic marble unit hosts an anhydritegypsum-dolomite lens...hosted in graphitic gneiss strongly associated with marble (Bridges 1974, Feneyrol et al. 2010a). The presence...tsavorite-bearing graphitic gneiss and associated marble, characterized by vanadian and F-rich minerals...quartz-orthoclase-oligoclase-andesine gneiss, dolomitic marble, and pegmatites have been described (Malisa |  | | Catalog/List | | Mohave Ixl £9 'A x A £3 1 xA Pb SiO/3_____________ County. Arizona, U.S.A £5___ Rich orange-red masses with...are small crystals County, Arizona Pure green cleavage AMAZONITE Landsverk quarry, Evje, Norway Ixl 50p...grained mass in calcite Dark Star Mine.Ravalli County, lx!4 £2.50 Ixl £4 37 Ce Sr CO/3 Montana U.S.A...£3 7 Pure black mica plate new Analysis , Saga Quarry, Tvedalen near ANNITE Mica__________ paper available...with Chrysotile, pale grey-green Ixl £1 County Bridge Quarry,Lizard Mg Fe SiO_______ massive. _________ |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...exceptionally fine, twinned analcite crystals from Houghton County ························-··-······-··-········...····· 41 2. Ankerite on siderite from Alpena County ···-··············-··················· 46 3....stalactitic limonite from Negaunee in Marquette County .................................................(Hexagonaria percarinata) of calcite from Charlevoix County .. ..... .. ....... ...... .. ............... |  | | Journal (article/letter/editorial) | | recognized:(1) a magnesium-rich type in dolomitized marble,dominatedby pyroxene,and (2) an iron-richtype in...and actinolite(+ salite)formedlocallyat the andradite-marble contact. In detail, magnesium-rich skarnnearestthe...nearthegranodiorite. Iron-rich skarn consistsof andradite garnet, which on the outer skarn contactdirectly...'"• Fault, showing d•rection anddegree ofdip • Lower Tertiary surface Tertiary - Quaternary Rockl Quaternary...Triassican- mine. It is a fine- to medium-grainedcalcite marble 880 N. B. HARRIS AND M. T. EINAUDI with small |  | | Book | | soluble, while other Sn-bearing silicates (e.g. andradite, epidote, ferrohastingsite) are relatively insoluble...produced by the replacement of calcite or dolomite marble (in most cases) independent of whether calcic or...compared to skarns in general, W-Sn skarns are lower grade, smaller, or both. The largest W-skarn, MacTung...1982; Barrantes Garate,1970). A "guesstimated" lower limit for mineable W-Sn skarns in western countries...would need to be amenable to open pit mining. The lower limits are usually only workable under conditions |  | Zhao, Haijie, Xie, Guiqing, Wei, Ketao, Ke, Yufu (2012) Mineral compositions and fluid evolution of the Tonglushan skarn Cu–Fe deposit, SE Hubei, east-central China. International Geology Review, 54 (7) 737-764 doi:10.1080/00206814.2011.569418 | Journal (article/letter/editorial) | | located in the westernmost district of the Middle–Lower Yangtze River metallogenic belt. As a typical polymetal...the Tonglushan quartz-diorite pluton (140 Ma) and Lower Triassic marine carbonate rocks of the Daye Formation...grossular (Ad20.2–41.6 Gr49.7–74.1 ) to pure andradite (Ad47.4–70.7 Gr23.9–45.9 ) in composition, and...isotopes; southeast Hubei Introduction The Middle–Lower Yangtze River (MLYR) metallogenic belt has always...the Cambrian to the Quaternary, although Middle– Lower Devonian and Upper Jurassic rocks are missing. The |  | | Journal (article/letter/editorial) | | formed by assimilation of pelitic sediments and dolomitic mm~les by the granite magt~a. "Foe fo~ values...represent hybfidh:afion of pelitic sediments and dolomitic marbles by mascovite-biotite granite magma. Geology...:calated beds of metagraywackes, dolomitic m~xbles ~md calcitic dolomitic marbles), which are highly folded...of metagraywackes and rarely of dolomitic marbles and calcitic dolomitic marbles of regional metamorphism...zircon, epidote, pyrite Granolepidoblastic Dolomitic marbles PhyUite Contact me.'~amorphismdue to |  | Yang, Zhuming, Giester, Gerald, Ding, Kuishou, Tillmanns, Ekkehart (2012) Hezuolinite, (Sr,REE)4Zr(Ti,Fe3+,Fe2+)2Ti2O8(Si2O7)2, a new mineral species of the chevkinite group from Saima alkaline complex, Liaoning Province, NE China. European Journal of Mineralogy, 24 (1) 189-196 doi:10.1127/0935-1221/2011/0023-2158 | Journal (article/letter/editorial) | | microcline. When the alkaline rock contacts with dolomitic marble and limestone, intense skarn development takes...contains arfvesonite, phlogopite, nepheline, andradite, aegirine and augite. The alterations occur along...found in the Saima alkaline complex, Fengcheng County, Liaoning Province, China (124 120 E, 41 N)...of nearly EW trend composed of Proterozoic and Lower Palaeozoic strata. The country rocks to the northern...western, and southern parts of the complex are dolomitic marble of the Proterozoic Liaohe Group; to the southwestern |
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