 | | Journal (article/letter/editorial) | | Erratum.-In the report of the 551st meeting (SCIENCE, AMay 2, 1902, page 710) the statemnent regarding the...iefraction can be distinguished; as for example, between quartz sections cut parallel and at right angles to the...mtarcasite are common, among them cyclic fivelings. Quartz crystals are rare and small. Calcite presents an...silicates and the rarity and small size of the quartz crystals strongly preclude the theory that the |  | | Report (chapter) | | 2015 Late Frasnian phillipsastreid biostromes in Belgium EDOUARD POTY l & EMMANUEL CHEVALIER 2 ~Palkontologie...de Likge, Bdt. B18, Sart Tilman, B-4000 Likge, Belgium (e-mail: e.poty@ulg.ac.be) 2Carmeuse s.a., Rue...Rue du Chgtteau, 13A, B-5300 Seilles, Belgium (e-mail: emmanuel, chevalier@carmeuse, be) Abstract: In the...scleractinians, and to live in turbulent habitats. In Belgium argillaceous sedimentation prevented the development...often rich coral and stromatoporoid faunas. In Belgium the first Frasnian ecological crisis occurred during |  | | Journal (article/letter/editorial) | | Murchison and Murray meteorites, and in each instance quartz sand blanka, were extracted similarly. Pulverized...reooveredfrom oa&onaceous chondriti 457 Bkzdx. Quartz eend blanks and reagent blenke were prepared pare&l...i@ 8tfZ8IW8t0dj-fold raletve to otherf&ume. an amay of low mm (cm/e 73) wrnernte and m/e 101, m/e 116peaks |  | | Journal (article/letter/editorial) | | arm in washing and amalgamation of gold found in quartz immediatf'lyabovethe socket to be used instead...knee·pieces, f f, in the manner and for the purposes amay like purpose said spring box or apparatus being |  | | Journal (article/letter/editorial) | | arm in washing and amalgamation of gold found in quartz immediatf'lyabovethe socket to be used instead...knee·pieces, f f, in the manner and for the purposes amay like purpose said spring box or apparatus being |  | Ballirano, Paolo, Pacella, Alessandro, Bloise, Andrea, Giordani, Matteo, Mattioli, Michele (2018) Thermal Stability of Woolly Erionite-K and Considerations about the Heat-Induced Behaviour of the Erionite Group. Minerals, 8 (1) 28 doi:10.3390/min8010028 | Journal (article/letter/editorial) | | indicated the occurrence of traces of calcite and quartz. in Figure 1. Preliminary scrutiny of the data...indicated the occurrence of traces of calcite and quartz. The cell cell parameters parameters of of the...below: erionite, erionite, Vertical quartz, calcite, and nontronite. quartz, calcite, and nontronite. Minerals...morphology. reduction ra is observed break approaches. We Amay reduction of rthat as Tbreak Weprogressive may speculate...Uytterhoeven, J.B., Ed.; Leuven University Press: Leuven, Belgium, 1973; p. 94. Meier, W.M.; Groner, M. Zeolite structure |  | | Journal (article/letter/editorial) | | sample were used: pure mineral samples (hematite and quartz) and fine particles from the itabiritic ore for...so-called “Iron Quadrangle”, Minas Gerais. Hematite and quartz (−20 µm) were used for the fundamental studies...pelleton method. Pure Nicolet minerals (hematite quartz)infrared were analysed Infrared analyses were a...with KBr pellet method. Pure mineralsto(hematite quartz) analysed −1 using 360 scans. spectraand were performed...hematite (F2O3) quartz (SiO 2 ); the spectra can be found elsewhere [18]. and quartz (SiO2); the spectra |  | | Journal (article/letter/editorial) | | lumina are filled with chalcedony or crystalline quartz; tracheid lumina may contain opal or chalcedony...chalcedony. Specimens from 5 other logs contain quartz/chalcedony, but relict textures suggest cell walls were...that includes large well-rounded quartz grains and smaller angular quartz and feldspar clasts, with siliceous...well-rounded Figure quartz grains grains and and smaller smaller angular angular grains quartz and feldspar...siliceous matrix matrix produced produced by quartz grains of of quartz and feldspar in aa siliceous by devitrification |  | | Journal (article/letter/editorial) | | pore volume. There was no relationship between the quartz content and specific surface area and total pore...area are quartz and clay minerals, followed by carbonate minerals, feldspar, and pyrite. The quartz content...LX3-1 LX4-1 LX5-1 LX5-2 LX6-1 LX7-1 LX7-2 LX7-3 Quartz Feldspar Carbonate Minerals Pyrite Clay Minerals...shale exhibit a variety of morphologies sizes as amay result measured in any convenient units: moles,...size, and development of shale reservoir pores. Quartz and clay minerals are the major mineral components |  | | Journal (article/letter/editorial) | | 41)—diopside, Al (Kα, 42)—albite, Si (Kα, 63)—quartz, Ba (Lα, 72)—barite, Fe (Kα, 52)—hematite, Cr (Kα...studiedlocalities basalts is confirmed by the absence in of quartz and and the presence of nepheline. Nepheline is...studied basalts is confirmed by the absence of quartz and the presence of nepheline. Nepheline is relatively...equilibrium with and primitive melts basaltic magma for amay short its ascent thenmantle the composition and |  | | Journal (article/letter/editorial) | | leuporphyrycoppers.In thispaper,the relationships and cocratic quartz diorite; and phase C, centered on rolesof the systems...discussion. mation. 127 128 c. j. E,•$TOE Quartz-Cu,Fe sulfide mineralization, anhydrite, and p...and after the phasesof salt-rich liquid. Certain quartz-pyriteveinscontaininclusions of brinesof low to...to as quartz-pyriteassociation fluids. Pressuredeterminationsbasedon gas-richinclusionsand quartz-pyriteassociation...inclusionswith 1. The salt-richliquidsdepositedthe quartz-Cu,Fe the lowersalinitiesof ambientwaters.The possibility |  | | Journal (article/letter/editorial) | | arm in washing and amalgamation of gold found in quartz immediatf'lyabovethe socket to be used instead...knee·pieces, f f, in the manner and for the purposes amay like purpose said spring box or apparatus being |  | | Journal (article/letter/editorial) | | orogeny(Middle Devonian).They are associated with quartz-sericite and quartz-sericite-chlorite rocks,the latterco...singthe composition of chloritecoexisting with quartz,pyrite, and chalcopyrite, by meansof a six-the...290øCcalculatedfrom chloritecompositions at PrinceLyell, assuming quartz-ironoxide-chlorite equilibriumand the fo., conditions...probablyreflectmetamorphicreequilibration. Assuming quartz-chloritepyriteequilibriumand that eachchloriteis...Conglomerateis almostentirely of pebblesof quartz,quartzite,and quartz edgeof thegeologyandgeochemistry of theMt |  | Ni, Pei, Li, Wen-Sheng, Pan, Jun-Yi, Cui, Jian-Ming, Zhang, Kai-Han, Gao, Yan (2022) Fluid Processes of Wolframite-Quartz Vein Systems: Progresses and Challenges. Minerals, 12 (2) 237 doi:10.3390/min12020237 | Journal (article/letter/editorial) | | minerals Review Fluid Processes of Wolframite-Quartz Vein Systems: Progresses and Challenges Pei Ni...Zhang, K.-H.; Gao, Y. Fluid Processes of Wolframite-Quartz Vein Systems: Progresses and Challenges. Minerals...doi.org/10.3390/min12020237 Abstract: Wolframite-quartz vein-type tungsten deposits constitute the world’s...past few decades, extensive studies on wolframite-quartz vein-type tungsten deposits have been conducted...distribution and fluid characteristics of these wolframite-quartz vein-type tungsten deposits is still lacking. In |  | Mentesana, Roberta, Hein, Anno, Madrid i Fernàndez, Marisol, Kilikoglou, Vassilis, Buxeda i Garrigós, Jaume (2022) Think Globally, Act Locally: Global Requirements and Local Transformation in Sugar Pots Manufacture in Sicily in the Medieval and Post-Medieval Periods. Minerals, 12 (4) 423 doi:10.3390/min12040423 | Journal (article/letter/editorial) | | countries mayliving have in difficulties in using amay different of can opener, theytype would per se,...0.11 fabric composed mainly of monocrystalline quartz, feldspars, and mica in both the fine 2.14 1.24...a fine-grained fabric, mainly characterised by quartz and feldspars in both the fine and coarse fractions...fine- to medium-grained fabric composed mainly of quartz with a minor frequency of feldspars, mica, and...are in the quartz–anorthite–wollastonite is characteristic of study are positioned the quartz–anorthite–wollastonite |  | | Book | | Paléolithique au Néolithique en Europe. Terriens, Belgium: CEDARC. Bettinger, R. L., & Eerkins, J. (1999)...parenté. Paris: Du Gruyter. Lombard, M. (2011). Quartz-tipped arrows older than 60 ka: Further use-trace...Préhistoire/ Service de Préhistoire de l’Universitéde Liège/Centre d’Études et de Documentation Archéologiques...which includes bifacial points made of silcrete and quartz, many of which are of a size and weight incompatible...optical dating of single and multiple grains of quartz. Journal of Human Evolution, 51, 255–273. Jacobs |  | | Journal (article/letter/editorial) | | the thin end of the neutral-tinted wedge and fade amay towards the region which corresponds with tlie thicker...and TV. L. Rragg, the structure4 of pyrites and quartz are deduced by means of the general mathematical...chloritoid being surrounded by clear spaces, filled with quartz and chlorite. Actual flow of a solid phase into |  | | Journal (volume) | | London (Richardson 1960, no 31); Waasmunster, Belgium (Spitaels 1969, cat 613). Hull’s corpus includes...France (Feugère 1985, pl 151, no 1898); Theux, Belgium (Spitaels 1969, cat 238, enamel turquoise); Dura... Luxembourg (Thill 1969, no 197); Ellezelles, Belgium (Spitaels 1969, cat 69 and 70); Barentin, France...Hungary (Sellye 1939, pl xii, no 17); Ellezelles, Belgium (Spitaels 1969, cat 64 and 87). NN 181 (The brooch...(cf NN 182, below). Close parallels: Flavion, Belgium (Spitaels 1969, cat 465); Augst, Switzerland (Riha |  | | Book (volume) | | but when re, folved and recryftallized it forms Quartz. ; SOIL, the earth of vegetables, eagerly combining...fragments. 11. SiLEX, of convex fragments. 9. 10. V. Quartz, AGGREGATE. 12. Rock, of mixed heterogeneous...v/hich becomin^^ iolid particles added a mixture oi Quartz, Spar, Mica. In ignition they are to be confidered... Fillile. 2 Sand-ftone. Fiint. Petrofilex. Quartz. Cryftal. He firft determined rightly the fpecies...Metallic Phlog. 1758. Silver. Metallic Z. Emerald, Quartz. Jafper. Granatlne, AJheJiitie. 9. Magnejiate |  | | Report (issue) | | 0* Harder and R. G. Wayland, 1955* Quartz-mica schist, quartz-rrdcaataurolite schist, and quart z-cdcaandalusite...Mica-garnet schist, pseudocongloinerate, quartzite, quartz-mica schist, and amphibole schist Araphibole schist...Mica-garnet schist, pseudoconglcmerate, quartzite, quartz-nica schist, and amphibole schist - Fault contact...quartzite, and ndca-graphlte schist 3 li Quartz-mica schist and quartz-nicastaurolite schist 5 Mica schist...quartzite Quartz-mica schist and quartz schist Quartz schist and quartzite - Fault contact -- 7 Quartz-mica |  | | Book (edition) | | Rocks Composed of Alkali Feldspar, Plagioclase, and Quartz. . . . . . . . . . . . . . . . . . . . . . . ....Experimental Anatexis of Rocks Composed of Plagioclase and Quartz but Lacking Alkali Feldspar ............... " Formation...illite/montmorillonite -. AI-rich chlorite + illite + quartz + H20. Thus, as Correns remarked, in diagenesis...Metamorphism 11 Minerals such as feldspar, chlorite, or quartz form under metamorphic as well as under diagenetic...the critical changes. Thus rocks consisting of quartz + chlorite + illite (phengite) persist unchanged |  | | Journal (volume) | | Paleeozoic Deposits of the North of Germany and Belgium, and their comparison with Formations of the same...correla- tive matter in Devon and Cornwall, Belgium, the Eifel, &c., by Thomas The Author. Weaver...or bluish crystalline limestone and stratified quartz-rock. in no determinate order, but are The ...cleavage distinct the stratification. Veins of white quartz are as frequent as in similar rocks of most other...the numerous ; arts the Asiatic Greeks The quartz rock of however is assist the labours of the |  | | Journal (article/letter/editorial) | | compared with those in the museums of France and Belgium, if justice was to be done to the subject, and...Lazaro of Italy, and of the Order of Leopold of Belgium. He was also an honorary member of the Royal Society...Tertiary and Cretaceous strata of Holland and Belgium. Dr. Bosquet worked out with great industry and...was a Member of the Royal Academy of Sciences of Belgium, and was also a Chevalier of the order of Leopold...original researches upon the Crag Mollusca of Belgium. His chief work is the 'Description des Coquilles |  | | Journal (issue) | | pyrrhotite, magnetite, hematite, garnet, pyroxene, quartz, and calcite. White precipitate occurring on tailings...Cretaceous to early Tertiary quartz diorite porphyry dikes and hornblende quartz diorite sills (Jones and...popphyry dike Tw Tm Tg — Thg Kip Ps — Conglomorate Quartz monzonite porphyry dike Granodiorite porphyry dike...Hormblende quartz diorite Syrena formation, shale & limestone | Tlq Po 300 METERS Quartz latite porphyry... 67oy ’ WET Wer WET iar 20} 16,50mayor % amay WEY, Gmgygr WET my 254 Smgygr/7.8mgy mayor &mgy |  | | Report (issue) | | fraction of the head consists of granules of weathered quartz and feldspar in a loess matrix. The thickness of...The sediment is largely composed of silt-grade quartz and feldspar, but is calcareous in patches and...extensive cover of sediment. The sand is composed of quartz and feldspar of medium grain size, although some...brackish elements in (BOTANICAL AND GEOLOGICAL) Se amay, of localities. the purposes. interior, but...beach is in a matrix of red sand of feldspar and quartz, poorly rounded and sorted, with grain-sizes from |
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Amay, Liège, Wallonia, Belgium