| ALONSO-ZARZA, ANA M., MARTĂN-PĂREZ, ANDREA, MARTĂN-GARCĂA, REBECA, GIL-PEĂA, INMA, MELĂNDEZ, ALFONSO, MARTĂNEZ-FLORES, ESPERANZA, HELLSTROM, JOHN, MUĂOZ-BARCO, PEDRO (2011) Structural and host rock controls on the distribution, morphology and mineralogy of speleothems in the Castañar Cave (Spain) Geological Magazine, 148 (2) 211-225 doi:10.1017/s0016756810000506 | Journal (article/letter/editorial) | Remains of a thin and extensive alluvial cover of quartz gravels, designated as âRanÌasâ and generally attributed...Dolomitization 6a 6b 6c 6d 6e 6f Other Popcorn Pool Gours Rafts Crusts Moonmilk 5e 5f 5g 5h A â aragonite;...columns, draperies, flowstones, coralloids, crusts, gours, pool deposits, rafts and moonmilk (Table 1). Aragonite...the floor, especially of fossil pools (Fig. 6a). Gours are calcite barriers that form perpendicular to...Cabrol & Mangin (2000) in the Grotte de Clamouse in France. These speleothems are commonly formed by aragonite | | Malcles, Oswald, Vernant, Philippe, ChĂ©ry, Jean, Camps, Pierre, Cazes, GaĂ«l, Ritz, Jean-François, Fink, David (2020) Determining the Plio-Quaternary uplift of the southern French Massif Central; a new insight for intraplate orogen dynamics. Solid Earth, 11 (1). 241-258 doi:10.5194/se-11-241-2020 | Journal (article/letter/editorial) | CNRS and University of Montpellier, Montpellier, France of Earth and Environmental Sciences, University...We show that absolute burial age (10 Be/26 Al on quartz cobbles) and the paleomagnetic analysis of karstic...Aigoual, records the highest mean annual rainfall in France of 4015 mm) it raises the question of a possible...and associated river downcutting. First, we use quartz cobbles to measure the concentration of cosmogenic...nuclides are produced in the same mineral (i.e., quartz), (ii) their relative production ratio is relatively | | | Journal (article/letter/editorial) | to 550°C. RYE et al. (1976) applied quartz-muscovite and quartz-biotite oxygen isotope thermometers which...isotopiquesdu carbone dans les marbres rn~~rno~hiqu~ des Gours Oumelaien (Ahaggar, AI&ie), des Adirondacks (New | | | Journal (article/letter/editorial) | bundles of laments encrusted with goethite and quartz showing vertical orientation due to gravity draping...heavily encrusted lament strands, embedded in brous quartz (chalcedony), height 2.0 mm; (e) thin section photomicrograph...Herdorf near Siegen, Germany Huelgoat, Brittany, France Bleiberg, Carinthia, Austria Matagente, Cerro de...chalcedony; goe = goethite; hem = hematite; qtz = quartz; zeo = zeolites. Filament morphotypes: A: irregular...inclusion homogenization temperatures measured in ⊠quartz cementing laments range from ÂĄ70 to Âż200 C, indicating | | | Book | intrusions. In the Ingletonian they are mainly quartz-chlorite veins and basic dykes, but there is very...origin, a conglomerate bed made up of pebbles of quartz, various igneous rocks and some small solitary...being stalactites and stalagmites, ns. curtains, gours and helictites are some of the many variatio 21...rock which is quite coarse grained and has larger quartz fragments in it. There is no fossil evidence recorded...moving of that into form its changed water actually Gours: depositional features found in caves, being formed | | | Journal (article/letter/editorial) | calcite and quartz. In contrast, the schists generally do not contain large fractures, although quartz veins...mm. They consist of variable amounts of biotite, quartz, clinozoisite, tremolite, chlorite, plagioclase...along grain boundaries of carbonate minerals or quartz ( Fig. 3A,B). In finer grained schist samples,...The samples were washed with 48% HF to remove any quartz. Spectroscopic standard graphite yielded a d value...primarily at the grain boundaries of calcite and quartz. (B) Marble sample 9224 (2 mm) showing the distribution | | | Journal (article/letter/editorial) | samples were sealed in 2-3 mm o.d. thin-walled quartz tubes. Blank tests were carried out on some of...3141.0 X435.026290 2372.0 MAGNETIC FIELD iin Gours) Fig. 2. Angular dependence of the resonance field | | | Journal (article/letter/editorial) | Chalcedony in Devonian basalt Quartz varieties in Tertiary basalts Quartz varieties in Tertiary basalts...basalts Chalcedony/chert in Tertiary basalts Quartz varieties in Permian volcanics I, I, I, I, I, I I M R...44Âș21N, 29Âș29N, Chalcedony in Tertiary volcanics Quartz varieties in Tertiary dacite Chalcedony in Tertiary...India 31Âș38N, 7Âș28W Quartz varieties in Late Cretaceous volcanics Quartz varieties in Mesozoic basalts...3E 49Âș20S, 69Âș20E Quartz and zeolites in TertiaryCretaceous volcanics Quartz varieties in Upper Cretaceous | | | | silicate mineral. The simplest silicate mineral is quartz, which is pure silica. More commonly there are...The figures in parentheses chemical formula for quartz n are the chemical formulas is Si02, which shows...of one mineral begin to form, and then the whole lot is thrust into another area where it cools quickly...which are quartz. Acidic rocks tend to be lightly colored, because of the presence of quartz. Basic and...feldspar and calcite. Granite consists mostly of quartz, feldspar, and mica. In wet climates the feldspar | | Entrena, Ana, FornĂłs, Joan J., AuquĂ©, Luis F., GrĂ cia, Francesc, Laita, Elisa (2022) Mineralogical and Sedimentological Characterization of the Clay-Rich Sediments from Ases Cave (Cova Dets Ases, Mallorca, Spain): Origin and Classification. Minerals, 12 (11) 1473 doi:10.3390/min12111473 | Journal (article/letter/editorial) | kaolinite, smectite, and chlorite), calcite and quartz, and minor proportions of dolomite, albite, orthoclase...of the bedrock or the speleothem), as well as by quartz, feldspar, and clay minerals (from impurities or...of speleothems (stalactites, stalagmites, rafts, gours, phreatic overgrowths, etc.) have grown and some...are not outcrops with sufficient quantities of quartz, feldspar, and clay minerals in the island [25...lakes, whose composition is characterized mainly by quartz, feldspar, and clay minerals, although they also | | | Book | silicate mineral. The simplest silicate mineral is quartz, which is pure silica. More commonly there are...shaped kidney ore above . n chemical formula for quartz is Si0 2, which shows that each molecule consists...of one mineral begin to form, and then the whole lot is thrust into another area where it coo ls quickly...which are quartz. Acidic rocks tend to be lightly colored , because of the presence of quartz. Basic and...feldspar and calcite. Granite consists mostly of quartz, feldspar, and mica. In wet climates the feldspar | | | Journal (article/letter/editorial) | occurrence of the specimens :â" Deposits of fresh-water quartz * SEWAED, " Fossil Plants from South Africa," Geol...by small crystals of perfectly pure and hyaline quartz. The fresh-water quartzes of Illia enclose a great...Fossil Botany, 2nd edit., p. 291, 1908 ; RENAULT, Gours de botanique fossile, pi. xxi. fips. 12-14, 1883...Bassin Houllier d'Heraclee," Mem. Soc. Giol. de France, Mem. 21, p. 21, 1899: (2) Elements de pale'bot | | | Book (edition) | 3a Example: staurolite 4 Hexagonal 4a Example: quartz 5 Monoclinic ©DIAGRAM systems through crystals...Amphibolite (metamorphic) C Shale (sedimentary) a Quartz b Alkali feldspar c Plagioclase feldspar d Biotite...with silicon and oxygen. Examples: asbestos, mica, quartz, and feldspar. 2 Carbonates, the second most abundant...Gabbro 6 Peridotite 56 a Orthoclase feldspar b Quartz Âą Plagioclase feldspar d Biotite e Amphibole f...amphibole, biotite mica, olivine, and pyroxene. Quartz is the sole silicate comprising only silicon and | | | Journal (issue) | 24 Further geological travels in Germany (and France) by Steve McLean ................................g. Minerals such as calcite, baryte, fluorite, quartz, British wulfenite, British antimony minerals,...question. What the member would get would be an awful lot less were it not for the unpaid efforts of a few...The shows were very good and well attended with a lot of interest taken in the Society's activities. Many...Bridges 'Further geological travels in Germany (and France)' by Steve McLean. 14 January 1997. Trevor Bridges | | | Journal (issue) | b composed of carbonate minerals and the latter quartz and other silicates, but the) are not covered...lines vugs in dolomitised limestone and authigenic quartz may be large enough in some lime tones to have...resulted in a redistribution of silica ielding quartz-rock masses. A 0 ood example i een in the lime...ton were in fact chalcopyrite (CuFeS 2) in thin quartz veins. Also it was not clear whether "to the ton"...ton" meant ton of dolerite or ton of quartz vein! Old records include: Pettus (1670: 6) who discussed | | | Book | abilities. He studied the fauna of over 1000 caves in France, Spain, Corsica, Algeria, Slovenia, and Romania...working at the Arago Laboratory of Banyuls-sur-Mer (France) as Vice-Director and Lecturer at the Faculty of...were published by various specialists. Returned to France, Emil RacoviÈÄ continued his marine biology research...collaborator, R. Jeannel, he explored over 1000 caves in France, Spain, Corsica, Algeria, Slovenia, and Romania...Honorary President (1925) of the Zoological Society of France; Knight of the Leopold Order of Belgium; Member | | | Journal (issue) | migmatites. Mica-bearing pegmatite bodies and thin quartz veins developed within Khitostrov in terminal stages...also form dendrites inside of calcite speleothems. Quartz occurs in residual clays in zones of corrosion...forms exist between these two classes, such as gours (the travertine dams along streams), that are originally...discovered, however, that the quartz-garnet symplectites (graphic quartz-garnet intergrowths) were presÂ...mineralization was undertaken using the criterion of quartz-garnet symplectites. The following method was used | | | Book | covers the n1oss co fom1 a series of dan1S known as gours. Farther east are Barnclose and Halecombe quarries...where the parent rocks are replaced by silica (quartz), creating a buff-brown rock kn.own as chert. This...conglomerates contain far-travelled, well rounded quartz pebbles with some rhyoljce lava and granite pebbles | | | Journal (volume) | and Corresponding Member the Royal Institute of France (with a Plate), ' II. III. Communicated by...Corresponding Member of the Royal Institute of France. XXVII. which have Flowered in the Royal Botanic...Corresponding Member of the Royal Institute of France. [The following Paper cal Question, and is ...the glare will extend a short Thus, a ball of quartz, at a white which vanishes vrhen the contigu-...we may be permitted templating the hard of so lot vi- many ; but to indulge in con- W fellow | | Harris, Norman, Fenton, Carroll Lane, Cooper, Chalmer L., Collins, Henry Hill, Haslau-Perry, Olivia V. - Eds. (1961) Larousse Encyclopedia of The Earth (1st ed.) Prometheus Press, New York. | Book (edition) | first pubhshed Mary M. Owen NOTRE PLANETE, in France Hollier-Larousse, by Auge, Gillon, Moreau et...tools. The best materials for this purpose were quartz and quartzite, but when these were scarce Pekin...that reach neither ore nor Clouds over Sologne, France. Martln-Rapho coal, and have tried oil to...has been worth while. C.L.F. 1961 - 10 - Air France ATMOSPHERE AND WEATHER Man has always been familiar... for the purpose of improving standards - of France set up a rain-gauge to rainwater he could expect | | | Book | friends in other countries, especially in America and France, confines itself entirely to the caves of Great...minor differences in ornamentation. In southern France they reach heights of a hundred feet or so in Aven...pools, though the French term gours is more commonly used in Britain. Gours occur in groups, tho”gh isolated...South Wales. Pool deposits are to be found in many gours as well as in rock pools, consisting mostly of free-growing...bubbles in pools in a few caves and mines in England, France, and America (Warwick, 1950; Railton, 1951), and | | | Book (edition) | 842 842 842 842 843 844 848 Q 102. Quartzite and quartz sandstone caves of South America 861 861 862 862...formation caves: genesis and ecology Quartzite and quartz sandstone caves of South America Solution caves...HydroSciences, University of Montpellier, Montpellier, France Craig M. Barnes (761), University of Sydney, Camperdown... Museum National dâHistoire Naturelle, Paris, France Teo Delic (967), University of Ljubljana, Ljubljana... Museum National dâHistoire Naturelle, Paris, France Rhawn F. Denniston (784), Cornell College, Mt | | | Book | Jean-Guy Michard Musee Nationale d'Histoire, Paris, France KuwoObata National Science Museum, Tokyo, Japan...3a Example.· staurolite 4 Hexagonal 4a Example: quartz 5 Monoclinic 5a Example: orthoclase 6 Triclinic...with silicon and oxygen. Examples: asbestos, mica, quartz, and feldspar 2 Carbonates are the second most...(metamorphic) e i-----1 b CShale (sedimentary) g a Quartz b Alkali feldspar c Plagioc/ase feldspar C: <...Pale and dark minerals: a Orthoclase feldspar b Quartz c P/agioclase feldspar d Biotite e Amphibole | | | Book (edition) | ~âą-p'I ' . :::~~~ ~Flowstone terraced with small gours. standing free. Flowstone is basically a surface...especially magnificent terraces made up of large gours. Solitary rimstone barriers in Mammoth Cave, several...used for short brilliance at full strength) New quartz-halogen bulb units seem to be working quite well... In North American caving, it sometimes needs a lot of help. In ice caves, the need for protective clothing...water to avoid dehydration and salt loss. But it's a lot worse if you're not a cave connoisseur. âą ... | | | Book | iting% ye BHoL eo inveo artes ote eS a. a Md aj lot) 2wrthodnogiy Luatartighalis atetoiene SakoodLOYD...dolomite bicarbonate solution RĂ©seau Jean-Bernard, France; Mammoth Cave, USA evaporites, e.g., gypsum, halite...Lukina Jama France Austria Sistema Cheve Snieznaja-Mezennogo Mexico Georgia Slovenia France/Spain Switzerland...Switzerland France Austria Spain Spain Italy Georgia Ceki 2 (Cehi) RĂ©seau de La Pierre Saint-Martin Sieben...Name 1 2 3 4 5 6 7 8 9 10 11. 12 13 14 15 16 France Georgia Depth Mammoth Cave system Optimisticheskays |
|