 | | Journal (article/letter/editorial) | | Rocks (Spessartine Quartzites) of the Venn-Stavelot Massif, Ardennes, a Volcanoclastic Metasediment ?...with Ordovician (Salmian) shales of the Venn-Stavelot Massif, Ardennes. These coticules indicate sudden...phengitebearing spessartine-quartzites including paragonite, chlorite, and chloritoid or kaolinite as subordinate...the Ardennes. 1. Introduction In the Venn-Stavelot Massif, Ardennes, Ordovician rock units are characterized...Kramm Gressenich ~omur . Verviers et . - STAVELOT--- Malmedy I ] Devonian,Carboniferous " Salrnian |  | Dekoninck, Augustin, Monié, Patrick, Blockmans, Sabine, Hatert, Frédéric, Rochez, Gaëtan, Yans, Johan (2019) Genesis and 40Ar/39Ar dating of K-Mn oxides from the Stavelot Massif (Ardenne, Belgium): Insights into Oligocene to Pliocene weathering periods in Western Europe. Ore Geology Reviews, 115. 103191 doi:10.1016/j.oregeorev.2019.103191 | Journal (article/letter/editorial) | | and 40Ar/39Ar dating of K-Mn oxides from the Stavelot Massif (Ardenne, Belgium): Insights into Oligocene...Oligocene to Pliocene weathering periods in Western Europe T Augustin Dekonincka, , Patrick Moniéb, Sabine...ABSTRACT Keywords: Manganese deposit Ardenne Stavelot-Venn Massif K-Mn oxide Weathering 40 Ar/39Ar The occurrence...Formation, Salm Group) in the Stavelot inlier (NE Ardenne, Rhenish Massif, Belgium) has drawn the attention...Ma). A relatively continuous weathering of the Massif since the late Oligocene, or older weathering phases |  | | Journal (article/letter/editorial) | | Evidence for Hercynian Metamorphism in the Venn-Stavelot Massif, Belgium By W. SCHREYER, Bochurn *) With...exposed in the central and northern parts of the Rhenish Mass. R~sum~ On a trouv6 dans le quarzite du Gedinnien...roches affleurant dans le nord et le centre du Massif Schisteux Bh6nan. KpaTKoe eo,~ep~I~aHHe B 6a3aJrbHT-ix...Maccr~Ba. 1. I n t r o d u c t i o n The Venn-Stavelot Massif of southeastern Belgium is situated in the...the Rhenish Mass that marks the northern periphery of the Hercynian Mountains in Central Europe. This |  | Hatert, Frédéric, Lefèvre, Pierre, Pasero, Marco, Fransolet, André -Mathieu (2003) Graulichite-(Ce), a new arsenate mineral from the Stavelot Massif, Belgium. European Journal of Mineralogy, 15 (4) 733-739 doi:10.1127/0935-1221/2003/0015-0733 | Journal (article/letter/editorial) | | Graulichite-(Ce), a new arsenate mineral from the Stavelot Massif, Belgium FRÉDÉRIC HATERT1,*, PIERRE LEFÈVRE1...(AsO4)2(OH)6, is a new mineral species from Hourt, Stavelot Massif, Belgium. It occurs in the most altered parts...arsenate mineral, REE, crandallite group, Hourt, Stavelot Massif, Belgium, crystal structure. Introduction...Introduction In the southeastern border of the Stavelot Massif, Belgian Ardennes, the metapelites belonging to the...for his contribution to the geology of the Stavelot Massif. The holotype is stored in the collection of |  | | Journal (article/letter/editorial) | | in niedriggradig metamorphen Schiefern des Venn-Stavelot Massivs, Ardennen U. Kramm Mit 4 Abbildungen Eingegangen...den niedriggradig metamorphen Peliten des Venn-Stavelot Massivs, Ardennen, inkonsistente Nquilibriemngstemperaturen...Muscovite-Paragonite Phase Relations in Low-Grade Metamorphic Rocks o f the Venn-Stavelot Massif, Ardennes...pelitic rocks of the Venn-Stavelot Massif, Ardennes, the muscovite-paragonite solid solutions reflect inconsistent...petrological indicators. The compositions of paragonite correspond to these "equilibrium" compositions |  | | Journal (article/letter/editorial) | | geochemical study of pseudocoticule from the Stavelot Massif, Ardennes (Belgium), and redefinition of coticule...quartzites. Key-words: pseudocoticules, coticules, Stavelot Massif, Belgium. 1. Introduction The term coticule...mined in the region of Recht-Vielsalm-Bihain (Stavelot Massif, Belgian Ardennes, see Fig. 1, deposited as... Pseudocoticules from the Stavelot Massif 3. Geological setting and sampling The Stavelot Massif, Belgian Ardennes...existence of a Caledonian metamorphic event in the Stavelot Massif area is still a matter of debate (Kramm et |  | | Journal (article/letter/editorial) | | defines a very low (western part of the Venn—Stavelot Massif, Belgian Ardennes) Xco, in the temperature...WORDS: carpholiU; sptssartine; sudoilt; Vmt-Stanelot Massif; Ardemes elsewhere. Carpholite of the Lienne syncline...Mg as divalent cations, i.e. carmuscovite and paragonite. Spessartine in these rocks contains pholite...Mn-rich Rocks in the Lienne Syncline, Venn-Stavelot Massif (Belgian Ardennes), and the Role of Carpholite...GEOLOGICAL SETTING OF THE VENN-STAVELOT MASSIF The Venn—Stavelot Massif of the Belgian Ardennes represents |  | | Journal (article/letter/editorial) | | 1979 Kanonaite-Rich Viridines* From the Venn-Stavelot Massif, Belgian Ardennes Ulrich Kramm Mineralogisch-Petrographisches...These grains form an assemblage with muscovite, paragonite, Mg-chlorite, piemontite, braunite, hematite...are nearly alike. Viridine, quartz, muscovite, paragonite, chlorite, hematite, braunite, rutile, and apatite...metamorphic conditions verified in the VennStavelot Massif. Similarly low iron contents are described only...octahedral lattice sites. Since in the Venn-Stavelot Massif increasing oxidation states of the rocks are |  | | Journal (article/letter/editorial) | | precursor of spessartine in coticules of the Venn-Stavelot Massif, Belgium W. SCHREYER, H . - J . BERNHARDT AND...rhodochrosite, spessartine, coticule, Venn-Stavelot Massif, Belgium. Introduction THE term coticule...originally applied, are those of the Venn-Stavelot Massif of Belgium (Renard, 1878; Lessuise, 1981)....are actually found in lower-grade portions of the massif. On the other hand, Kramm (1976) argued for a Mn-montmorillonite...found here. Muscovite contains some 19 mol.% of paragonite component. This is in fair agreement with the |  | | Journal (article/letter/editorial) | | braunite, K-feldspar, albite, hyalophane, rare paragonite and accessory magnetite-rutile intergrowths,...overgrown or replaced by spessartine plus albite/paragonite and later replaced by muscovite. No difference...(kanonaite) + Na+ + 3 quartz = spessartine + albite/paragonite, and 3 Mn3+-rich andalusite (kanonaite) + K+...Mn3+-rich andalusite, kanonaite, spessartine, paragonite, muscovite, electron microprobe, metamanganolite...classical locality Le Coreux, Salm Valley, Stavelot Massif, Ardennes Mountains, Belgium (Kramm 1979a; |  | Blondieau, M., Puccio, S., Hatert F., Depret, M., Dal Bo, F. (2023) Minéralogie de la Formation d'Ottré au Thier del Preu et au Thier du Mont à Grand-Sart (Lierneux, Belgique), et comparaison avec les autres gisements régionaux. Bulletin de la Société Royale des Sciences de Liège, 92 (1) Liège. 71-152 doi:10.255118/0037-9565.11499 | Journal (article/letter/editorial) | | dans des phyllades ordoviciens violets du Massif de Stavelot, Belgique. Cette roche très particulière...comparable à celles d'autres localités du Massif de Stavelot, comme par exemple Bihain, Ottré, Regné et...terme désignant les micas blancs, muscovite et paragonite). On y observe aussi quelques rares phénocristaux...Grand-Sart est situé dans la partie sud du Massif de Stavelot, le plus grand des quatre massifs cambro-ordoviciens...rose constitué de muscovite et parfois aussi de paragonite. Cette minéralogie est tout à fait similaire |  | | Journal (article/letter/editorial) | | conglomerates along the southeastern border of the Stavelot Massif (Belgium). Detailed optical microscope observations...evolution of the area. 2. Geological setting The Stavelot Massif lies in the Ardennes s.l., which belong to...Middle Ordovician sediments, deposition in the Stavelot area started again during the diachrone Upper...Cravatte, 1999). As a result, the Caledonian Stavelot Massif is unconformably overlain by Upper Silurian...Along the southern and eastern borders of the Stavelot Massif, this metamorphism reached maximum values of |  | | Journal (article/letter/editorial) | | accessorys- 5%, –: not detected, Mic: microcline, Pg: paragonite. Sample no. Size fraction wmmx Qtz Alb Mic...minerals are microcline, calcite, epidote and paragonite. With decreasing size fraction, albite and chlorite...sericite Ž2–6, 1–2,- 1 mm., microcline Ž1–2 mm. and paragonite Ž2–6 mm.. Quartz occurs in accessory quantities...quantities in the - 1 to 6 mm size fractions, and paragonite in the - 1 and 1–2 mm size fractions. 4.2. Crystallite...Variscan deformation front between Stavelot–Venn Anticline and Brabant Massif — a balanced geological cross |  | | Journal (article/letter/editorial) | | 2012). In the Ardennes, samples come from the Stavelot massif (Schroyen and Muchez, 2000). In most samples...(Schwartz et al., 2009, 2013), from the Mont Blanc Massif (Rolland et al., 2003; Rossi et al., 2005), and...the Pyrenees, samples are from the Néouvielle massif (Henderson and McCaig, 1996), Pic Samples were...15.85 Argentera massif, Western Alps V4 – 4.80 C5F – 7.21 C5V 6.90 Mont Blanc massif, Western Alps MB03-...44 EV MB035.21 SV Aar massif, Central Alps 0608e 5.56 Pyrenees Neouvielle massif Ne02 Col d’Estaragne |  | | Journal (article/letter/editorial) | | spessartine in a schist sample from the Venn-Stavelot Massif, Belgium, there is still not much conclusive...spessartine in coticules from the VennStavelot massif, Belgium, but this was subsequently disputed by...1981). Muscovite± paragonite solid solution relations, i.e. only 10 mol% paragonite component in muscovite...Thermodynamic mixing properties of muscovite±paragonite crystalline solutions at high temperatures and...rocks from the Ossa-Morena zone, Southern Iberian Massif, southwestern Spain. Can Mineral 36:701±711 John |  | | Journal (article/letter/editorial) | | Manganese Rich Low-Grade Metamorphic Rocks, Venn-Stavelot Massif, Ardennes* Ulrich K r a m m 1VIineralogisoh-Petrographisches...Received ~ a y 4, 1973 Abstract. The Southern Venn-Stavelot ~[assif is characterized by Ordovician and Devonian...regional metamorphism. The assemblages 1 (phengite, paragonite, chlorite, chloritoid, garnet, quartz, hematite...hematite, rutite) and 2 (phengite, paragonite, chlorite, kaolinite (andalusite, pyrophyllite), garnet, quartz... the rocks belong to assemblage 3 (phengite, paragonite, chlorite, viridine, (kaolinite), (garnet), quartz |  | | Journal (article/letter/editorial) | | 1983). The presence of albite and the absence of paragonite adjacent to the pseudomorphs of manganian andalusite...side is albite + manganian andalusite + H2O = paragonite + quartz + bixbyite (500–550°C at 0.4 GPa). The...400°C because of the presence of kaolinite and paragonite but absence of feldspar in association with kanonaite...manganese rich lowgrade metamorphic rocks, Venn–Stavelot Massif, Ardennes. Contrib. Mineral. Petrol. 41, 179-196...(1979): Kanonaite-rich viridines from the Venn– Stavelot Massif, Belgian Ardennes. Contrib. Mineral. Petrol |  | | Report (issue) | | braunite (Kanona, Zambia); quartz, muscovite, paragonite, chlorite, hematite, braunite, rutile, apatite...(1979) Kanonaite-rich viridines from the Venn-Stavelot massif, Belgian Ardennes. Contr. Mineral. Petrol. |  | | Journal (article/letter/editorial) | | Varied Group of the Moldanubian Zone, Bohemian Massif, in close association with amphibolites, marbles...Czech part of the Moldanubian Zone in the Bohemian Massif the occurrences of garnet–quartz rocks and Mn-rich...sequence of metamorphic zones. In the Venn–Stavelot Massif, Upper Salmian (Lower Ordovician) of the Belgian...Mn-rich garnet in graphite-rich rock in the Bohemian Massif. Novák (1988) described spessartine-rich garnet...K-feldspar, albite, hyalophane, spessartine and paragonite (+ accessory minerals), c) garnet-rich rock dominated |  | | Journal (article/letter/editorial) | | Compatibility Relations of the Assemblage Quartz-Paragonite and the Thermodynamic Status of the Phase Rectorite...reaction 3 Na-montmorillonite ~- 2 albite ~ 3 paragonite -~ 8 quartz has been studied experimentally using...compatibility limit of the assemblage quartz-paragonite. The above reaction becomes metastable beyond...another reaction 1 albite ~ 1 kaolinite ~- 1 paragonite ~ 2 quartz -{-1 H~O, as suggested originally...compatibility relations of the assemblage quartz-paragonite is provided (Fig. 4). Perusal of natural assemblages |  | | Journal (article/letter/editorial) | | 1959 ; Kulish, 1961). Viridine of the Venn-Stavelot Massif gives some evidence that the mineral is also...Both white micas contain only small amounts of paragonite molecule (Table 2). The small excess of Si in...manganese rich low-grade metamorphic rocks, Venn-Stavelot Massif, Ardennes. Contrib. Mineral. Petrol. 41, 179-196...(1949) Thompson, A.B.: Calculation of muscovite paragonite-alkalifeldspar phase relations. Contrib. Mineral |  | V. Maresch, Walter, Stanek, Klaus Peter, Speich, Laura, Schertl, Hans-Peter, Villagómez, Diego (2022) Garnetite, garnet-quartz (‘coticule’) and calc-silicate layers in high-pressure metapelitic rocks, Venezuela: metamorphosed exhalites in a Cretaceous back-arc basin. International Geology Review, 64 (7) 885-910 doi:10.1080/00206814.2021.1891978 | Journal (article/letter/editorial) | | variation from 3.08 to 3.19 encountered. The paragonite component is below 10 mol% and margarite is negligible...contents vary from 3.03 to 3.28 apfu and the paragonite component is less than 20 mol%. All chlorite...geochemical study of pseudocoticule from the Stavelot Massif, Ardennes (Belgium), and redefinition of coticule:...2016, Coticules of the Belgian type area (Stavelot-Venn Massif): Limy turbidites within the nascent Rheic...rocks (spessartine quartzites) of the Venn-Stavelot Massif, Ardennes, a volcanoclastic metasedi ment |  | | Journal (article/letter/editorial) | | Mn-rich Rocks in the Lienne Syncline, Venn-Stavelot Massif (Belgian Ardennes), and the Role of Carpholite...L. Thermodynamic Mixing Models for Muscovite-Paragonite Solution! Based on Solution Calorimetric and |  | Willner, A. P., Pawlig, S., Massonne, H.-J., Herve, F. (2001) METAMORPHIC EVOLUTION OF SPESSARTINE QUARTZITES (COTICULES) IN THE HIGH-PRESSURE, LOW-TEMPERATURE COMPLEX AT BAHIA MANSA, COASTAL CORDILLERA OF SOUTH-CENTRAL CHILE. The Canadian Mineralogist, 39 (6) 1547-1569 doi:10.2113/gscanmin.39.6.1547 | Journal (article/letter/editorial) | | generally measured near the rim. Although the paragonite component is generally low (5– 17 mole %), there...rocks (spessartine quartzites) of the Venn–Stavelot Massif, Ardennes, a volcanoclastic metasediment? Contrib... In Pre-Permian Geology of Central and Eastern Europe (R.D. Dallmeyer, W. Franke & W. Weber, eds.). Springer...precursor of spessartine in coticules of the Venn–Stavelot massif, Belgium. Mineral. Mag. 56, 527-532. SCHUMACHER...Mn-rich rocks in the Lienne Syncline, Venn-Stavelot massif (Belgian Ardennes), and the role of carpholite |  | | Journal (article/letter/editorial) | | metamorphic rocks, but there are several reports from Europe and the Middle East (e.g. Germany, Kramm 1980;...shales and slates in the Cambro-Tremadocian Stavelot Massif (Fransolet and Bourguignon 1978; Kramm 1980)...Mn-carpholite, Mn-garnet, hematite, pyrophyllite, paragonite and muscovite, which were formed during the Variscan...occurrence with previous reports mostly f r o m Europe, a relatively low pressure of f o r m a t i o n |
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