 | Katona, I., Pascal, M.-L., Fonteilles, M., Verkaeren, J. (2003) THE MELILITE (Gh50) SKARNS OF ORAVITA, BANAT, ROMANIA: TRANSITION TO GEHLENITE (Gh85) AND TO VESUVIANITE. The Canadian Mineralogist, 41 (5) 1255-1270 doi:10.2113/gscanmin.41.5.1255 | Journal (article/letter/editorial) | | modifications, show a remarkable correlation between the åkermanite and Na-melilite contents, probably of crystal-chemical...pressure, mainly involving the transformation of the åkermanite component to monticellite. The silica released...remarquable corrélation entre les teneurs en åkermanite et Na-mélilite, probablement d’origine cristallochimique...faible pression, dans laquelle le constituant åkermanite se décompose en monticellite, tandis que la silice... which also may contain melilite rich in the åkermanite end-member [Ak, Ca2MgSi2O7] (Jamtveit et al. |  | Marincea, S., Bilal, E., Verkaeren, J., Pascal, M.-L., Fonteilles, M. (2001) SUPERPOSED PARAGENESES IN THE SPURRITE-, TILLEYITE-AND GEHLENITE-BEARING SKARNS FROM CORNET HILL, APUSENI MOUNTAINS, ROMANIA. The Canadian Mineralogist, 39 (5) 1435-1453 doi:10.2113/gscanmin.39.5.1435 | Journal (article/letter/editorial) | | TILLEYITEAND GEHLENITE-BEARING SKARNS FROM CORNET HILL, APUSENI MOUNTAINS, ROMANIA ŞTEFAN MARINCEA§ AND...tilleyite- and gehlenite-bearing skarns from Cornet Hill, part of the Metaliferi Massif, Apuseni Mountains... tobermorite, riversideite, plombièrite, Cornet Hill, Romania. SOMMAIRE Dans cet article, nous décrivons...tilleyite- and gehlenite-bearing skarns in the Cornet Hill area, associated with the Upper Cretaceous to Paleocene...(Constantinescu et al. 1988). In the skarn from Cornet Hill, Istrate et al. (1978) revealed the presence of |  | | Journal (article/letter/editorial) | | monticellite + spinel, and one also contains åkermanite. Reaction zones are dominated by diopside and...display extreme zoning in Si, Al, Ti, and XMg. Åkermanite contains up to 1.5 wt% Na2O. Textures in the...intergrowths of diopside, forsterite, and monticellite. Åkermanite and forsterite are separated locally by a coarse...+ forsterite + monticellite, with additional åkermanite in one case. Such assemblages represent the very...Intrusion is a layered mafic pluton located on the northern coast of Labrador. The intrusion has been described |  | | Journal (article/letter/editorial) | | 1450 Fo+Pv+l Di+ ,~k+Sp+Pv .I 1 ; 40 50 Wt% Co.2 MgSi2 07 20% f 1400 _ ~ . Liquid /.o 1350...855 2.850 10 I I I I I lO 20 30 40 50 Co. Ti A1206 Wt.% FIG. 5. Change of 2i I d-spacing and...Titanaugite, melilite nepheline dolerite, Scawt Hill, Co. Antrim (Tilley and Harwood, i931 ). 3. Titanclinopyroxene...are diopsidess+forsterite+åkermanitess + perovskite + liquid...liquid and diopsidess+åkermanitess+perovskite+spinel + liquid. Because | | | Journal (article/letter/editorial) | | 1450 Fo+Pv+l Di+ ,~k+Sp+Pv .I 1 ; 40 50 Wt% Co.2 MgSi2 07 20% f 1400 _ ~ . Liquid /.o 1350...855 2.850 10 I I I I I lO 20 30 40 50 Co. Ti A1206 Wt.% FIG. 5. Change of 2i I d-spacing and...Titanaugite, melilite nepheline dolerite, Scawt Hill, Co. Antrim (Tilley and Harwood, i931 ). 3. Titanclinopyroxene...are diopsidess+forsterite+åkermanitess + perovskite + liquid...liquid and diopsidess+åkermanitess+perovskite+spinel + liquid. Because | | | Journal (article/letter/editorial) | | 1450 Fo+Pv+l Di+ ,~k+Sp+Pv .I 1 ; 40 50 Wt% Co.2 MgSi2 07 20% f 1400 _ ~ . Liquid /.o 1350...855 2.850 10 I I I I I lO 20 30 40 50 Co. Ti A1206 Wt.% FIG. 5. Change of 2i I d-spacing and...Titanaugite, melilite nepheline dolerite, Scawt Hill, Co. Antrim (Tilley and Harwood, i931 ). 3. Titanclinopyroxene...are diopsidess+forsterite+åkermanitess + perovskite + liquid...liquid and diopsidess+åkermanitess+perovskite+spinel + liquid. Because |  | Pascal, M.-L., Fonteilles, M., Verkaeren, J., Piret, R., Marincea, S. (2001) THE MELILITE-BEARING HIGH-TEMPERATURE SKARNS OF THE APUSENI MOUNTAINS, CARPATHIANS, ROMANIA. The Canadian Mineralogist, 39 (5) 1405-1434 doi:10.2113/gscanmin.39.5.1405 | Journal (article/letter/editorial) | | ABSTRACT The melilite-bearing skarns of Cornet Hill (CH) and Upper Cerboaia Valley (UCV), in the Apuseni...Romania. SOMMAIRE Les skarns à mélilite de Cornet Hill (CH) et de la haute vallée de la Cerboaia (UCV)...metamorphism of siliceous limestone [e.g., Carlingford, Ireland: Nockolds (1947), Camas Mor, Scotland: Tilley (1948...(1959), Wiechmann (1995), Scawt Hill, Ireland: Tilley (1929), Carneal, Ireland: Sabine (1975), Isle of...described here: (1) a very small one on top of Cornet Hill (CH), where the contact outcrops over twenty meters |  | Pascal, M.-L., Katona, I., Fonteilles, M., Verkaeren, J. (2005) RELICS OF HIGH-TEMPERATURE CLINOPYROXENE ON THE JOIN Di CaTs WITH UP TO 72 mol.% Ca(Al,Fe3+)AlSiO6 IN THE SKARNS OF CICLOVA AND MAGUREAUA VATEI, CARPATHIANS, ROMANIA. The Canadian Mineralogist, 43 (3) 857-881 doi:10.2113/gscanmin.43.3.857 | Journal (article/letter/editorial) | | monticellite, spinel and either forsterite or åkermanite in the Kiglapait intrusion, Owens 2000). Some...small outcrops of gehlenite-bearing rocks, at Cornet Hill and at Upper Cerboaia Valley (Fig. 2), first reported...of spurrite – tilleyite – wollastonite at Cornet Hill, and wollastonite – calcite – Ti-rich garnet in...from the outcrop of gehlenite-rich skarn of Cornet Hill (Magureaua Vaţei complex), and three samples (VT54–55–56)...sample CHX, as in other samples from the Cornet Hill skarn occurrence, the pyroxene is Al-poor diopside |  | Melluso, Leone, Conticelli, Sandro, D’Antonio, Massimo, Mirco, Nicoletta P., Saccani, Emilio (2004) Petrology and mineralogy of wollastonite- and melilite-bearing paralavas from the Central Apennines, Italy. American Mineralogist, 88 (8) 1287-1299 doi:10.2138/am-2003-8-911 | Journal (article/letter/editorial) | | melilite-plagioclase-bearing rocks (e.g., Scawt Hill, Northern Ireland: Tilley and Harwood 1931; Yoder 1973)...better than 5% for traceelement determinations. Sc, Co, REE, Ta, Hf, and Th contents were determined at...Venanzo Oka Colli Albani Mt. Vulture Åkermanite + Fe-Åkermanite Ca2 MgSi2 O7 + Ca2 FeSi2 O7 Ernici ...pattern very similar to that of marls from the Northern Apennines, with moderate light to heavy REE fractionation...Fabbri; (b) representative sedimentary rocks of northern Apennines Sample NPM 8 SVK17 SVK20 SVK19 Facies |  | | Journal (article/letter/editorial) | | reactions at a dolerite–chalk contact at Scawt Hill, Ireland. In the case of Vesuvius, the magma– dolostone...5 2 CaMgSi2 O 6 + ½ MgAl2 O 4 + ½ K 2 O + 5 2 CO 2 + H 2 O = diopside spinel KMg 3 AlSi3O 10 (OH)2...+ 5 2 CaCO 3 phlogopite calcite 2 CaMgSi2O 6 + CO 2 = Mg 2SiO 4 + 3 SiO 2 + 2 CaCO 3 diopside forsterite...MgSi2 O 7 + CO 2 = CaMgSi2 O 6 + CaCO 3 åkermanite diopside calcite Ca 2 MgSi2 O 6 + CO 2 = CaMgSiO 4...4 + CaCO 3 + SiO 2 åkermanite monticellite calcite CaMgSiO 4 + CO 2 = ½ Mg 2SiO 4 + CaCO 3 + ½ SiO 2 |  | Xiong, Zhihua, Liu, Xi, Shieh, Sean R., Wang, Sicheng, Chang, Linlin, Tang, Junjie, Hong, Xinguo, Zhang, Zhigang, Wang, Hejing (2016) Some thermodynamic properties of larnite (β-Ca2SiO4) constrained by highT/Pexperiment and/or theoretical simulation. American Mineralogist, 101 (2) 277-288 doi:10.2138/am-2016-5425 | Journal (article/letter/editorial) | | group P21/n with Z = 4) was first reported in the Larne district of Great Britain (Tilley 1929) and soon...and Heinrich, W. (2011) Experimental growth of åkermanite reaction rims between wollastonite and monticellite:...minerals from the limestone contact-zone of Scawt Hill, Co. Antrim. Mineralogical Magazine, 22, 77–86. ——— |  | | Book | | informa business © 2012 Taylor & Francis Group, London, UK Typeset by V Publishing Solutions Pvt Ltd., Chennai...Chennai, India Printed and bound by CPI Group (UK) Ltd, Croydon, CR0 4YY All rights reserved. No part of...of iron replacing magnesium and, traces of Cr, Mn, Co, Ni. The most common variety of serpentine is antigorite...Siabout 4 O22 (OH)about 4 where R2+ = Fe2+, Mg, Zn, (Co, Li) R3+ = Al, (Fe3+, Ti, Cr) Staurolite contains...actual minerals (analyses with the micoprobe) Murat northern slope of Montage Noire (low pressure) Labastide |  | | Journal (volume) | | group. Composition covers virtuaiiy the entire åkermanite-gehlenite series, often with more or less predominating...is found in the ratio of the åkermanite component to the iron åkermanite (iron gehlenite) component. The...gehlenite), iron ikermanite (plus iron gehlenite) and åkermanite. 3. Plutonic-subvolcanic group. This group seems...»Geoscan» electron microprobe (Cambridge Instrument Co.) of the Geological Survey of Finland. A fairly large...the iron (manganese) akermanite component to åkermanite. Fig. 1 presents such a plot. However, instead |  | | Journal (volume) | | group. Composition covers virtuaiiy the entire åkermanite-gehlenite series, often with more or less predominating...is found in the ratio of the åkermanite component to the iron åkermanite (iron gehlenite) component. The...gehlenite), iron ikermanite (plus iron gehlenite) and åkermanite. 3. Plutonic-subvolcanic group. This group seems...»Geoscan» electron microprobe (Cambridge Instrument Co.) of the Geological Survey of Finland. A fairly large...the iron (manganese) akermanite component to åkermanite. Fig. 1 presents such a plot. However, instead |  | | Book (edition) | | and affection that I dedicate this edition to my co-author, teacher, mentor, colleague and friend, Dr...(Japan), William B. Simmons (USA). C.J. Stanley (UK). France ca Stasi (ltaly). Tony Steede (Canada)....Holmium Al Sb A As Ba Be Bi B Br Cd Ca C Ce Cs Cl Cr Co Cu Dy Er Eu F Gd Ga Ge Au Hf He Ho Hydrogen Indium...320-328 (str.) witb 0/ivenite 0 Adamsite-(\'). , aY(CO,lz·6IIJO. tric .. rclated to Tbomasclarklte-(Y),...Kazakhstan. 56. 635, ZV.\.fO 99(3), 333-339 D Åkermanite, Ca2MgSip;, tel.. forms a series with Gehlenite |  | | Book (edition) | | carbonaceous chondrite meteorite, which exploded over northern Mexico in 1969. The blue and yellow of the olivine...Figure 6.5, from the Giant’s Causeway, in Northern Ireland, consists of an interlocking network of feldspar... 86 Figure 2.19 One of the many quarries in northern Wales from which slate has been extracted for...of this book) and include Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn. These are also referred to as the...Inorganic Chemistry, 5th ed., Clarendon Press, Oxford, UK. Wenk, H. R., and Bulakh, A. (2004). Minerals: Their |  | | Book (edition) | | Figure 6.5, from the Giant’s Causeway, in Northern Ireland, consists of an interlocking network of feldspar...16(C)). Figure 2.19 One of the many quarries in northern Wales from which slate has been extracted for...the more abundant elements Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn. These are also known as the chromophore...other face poles are at various locations in the northern and southern hemisphere. The last sphere shows...the distribution of all the face poles in the northern (upper) hemisphere as intersection points (along |
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