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| though other early peoples considered it sacred to Venus, and others that it was under the control of Jupiter...times with Mercury. As the sapphire was sacred to Venus and removed the fear of drowning, sailors tried...National Museum at Ottawa. In 1942-43 he worked the nepheline and corundum along the York River. In 1947-48...metamorphic-metasomatic origin. At first the nepheline and corundum rocks were considered to be of truly...mode of origin has been questioned. Most of the nepheline and corundum rocks of southeastern Ontario appear |
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| Pleurotoma, Fusus, Buccinum, Bulla, Cerithium, Katica, Venus, etc., during the first decades of the century,...following communications were read : 1. " On Nepheline Rocks in Brazil.âII. The Tingua Mass." By 0. A...former paper the general distribution of the nepheline rocks, so far as known, was given with a particular |
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| inferred from trace element and isotope systematics. Venus has suffered extensive volcanic resurfacing, whereas...and felsic silicate rocks from the Moon, Mars, Venus, and meteorites are reviewed and discussed in this...Maitre, 1989) by the addition of the feldspathoid (nepheline)âalkali feldsparâsilica boundary line. This line...only. Like in the TAS diagram, the feldspathoid (nepheline)âalkali feldsparâsilica boundary line separates...an origin in major planetary bodies, including Venus and Mercury, and demonstrates that they formed early |
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| Pleurotoma, Fusus, Buccinum, Bulla, Cerithium, Katica, Venus, etc., during the first decades of the century,...following communications were read : 1. " On Nepheline Rocks in Brazil.âII. The Tingua Mass." By 0. A...former paper the general distribution of the nepheline rocks, so far as known, was given with a particular |
 | Sharma, Shiv K., Porter, John N., Misra, Anupam K., Helsley, Charles E., Bates, David E. (2014) Scanning time-resolved standoff Raman instrument for large-area mineral detection on planetary surfaces. European Journal of Mineralogy, 25 (5) 715-720 doi:10.1127/0935-1221/2013/0025-2303 | Journal (article/letter/editorial) |
| et al., 2004; Rull & Martinez-Frias, 2006), and Venus (Sharma et al., 2010) from planetary landers and...telescopes with low power lasers. For example, for Venus exploration, standoff Raman systems were developed...of glasses along the orthoclaseanorthite and nepheline-anorthite joins. Am. Mineral., 71, 694â704. Nedungadi...supercritical CO2 and high temperatures relevant to Venus exploration. Phil. Trans. Royal Soc. A, 368, 3167â3191...of minerals under supercritical CO2 relevant to Venus exploration. Spectrochim. Acta A Mol. Biomol. Spectrosc |
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| Pleurotoma, Fusus, Buccinum, Bulla, Cerithium, Katica, Venus, etc., during the first decades of the century,...following communications were read : 1. " On Nepheline Rocks in Brazil.âII. The Tingua Mass." By 0. A...former paper the general distribution of the nepheline rocks, so far as known, was given with a particular |
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| are firm plans to undertake detailed studies of Venus, Mars, the Asteroids and Titan, before the end...Research into the origin and evolution of the Earth Venus, and Moon the terrestrial and Mars) planets...pressure (Pa)* 10-7 106 km) * Note: 30 on Venus Earth 4.87 5.97 5250 8.60 5520 9.78 6050 ...atmosphere. Conditions would be quite different on Venus as its atmosphere is approxi- mately a hundred...often become welded together. Venusian volcanoes Venus and Earth have similar radii, masses and densities |
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| upper mantle,3 and for chemical reactions between Venusâ atmosphere and surface in planetary sciences.4...64, respectively, for the sodium silicate and nepheline melts with x(Na2O) = 0.25 and are 80 and 256,...aluminosilicate melts with those for albite larger than nepheline are qualitatively consistent with the observed...fraction. The two melts we consider are molten nepheline Table 6. Comparison of Sodium Silicate and Aluminosilicate...Geochem. 2013, 75, 183â229. (4) Fegley, B., Jr. Venus. In Meteorites, Comets, and Planets; Davis, A. M |
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| Geologic/Geomorphic and Structure Maps of the Northern Quarter of Venus by Gerald G. Schaber1 and Richard C. Kozak1 Open-File... TABLE OF CONTENTS MAP COMPILATION UNIQUENESS OF VENUS TEXT PERTAINING TO PLATE 1 SURFACE AGE AND STRATlGRAPfflC...the northern quarter of Venus 2. Structure map of the northern quarter of Venus 16 MAP COMPILATION The...project is to investigate the geologic evolution of Venus. The maps were a planned prerequisite to that project...regional geologic context. Because of the interest in Venus due to the Magellan Mission, the open-file format |
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| (~1090°C) for liquids saturated with leucite, nepheline, and spinel. With decreasing temperature on the...of multiply saturated liquids coexisting with nepheline, leucite, and spinel (± olivine ± high-calcium...region include a progressive shift toward more nepheline normative liquids ⹠Reprint requests to R.O. Sack...adding various proportions of akermanite, leucite, nepheline (Ward's Scientific) and olivine (Duluth Troctolite)...ultra-alkalic lavas bearing the minerals melilite, nepheline, and leucite are presented here. The experimental |
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| 300 km. Rodriguez taken of one of the "Transit of Venus" Expediitself lies about 440 km west of the crest...rocks, as shown by the appearance of normative nepheline. He therefore referred to the Rodriguez basalts...volcano is built of alkali olivinebasalts, mainly nepheline-normative, and some of which contain small amounts...Series of Mauritius consists of rather uniform nepheline-normative olivinebasalts with lower Si, Al, Na...collections made in Rodriguez during the Transit of Venus Expeditions of 1874-75; Royal Soc. [London] Philos |
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| equilibria in meteorites and on the surface of Venus (e.g., MENDYBAEVet al., 1990; KHODAKOVSKIIet al...I34 I35 1% id PI Jadeite Ice I High albite Nepheline Hibonite (41 [2] [2] D&pore Gibbsite Andradite...silica-undersaturated minerals (melilite, spinels, and nepheline) . 3) The melt field is much more extensive than...ELKR. V., LIPPINCO^IT E. R., and SAGAN C. ( 1967) Venus: Atmospheric evolution. Science 155,556-558. EUCKENA...VOLKOVV. P., SIDOROVYu. I., and ~WROSOV M. V. ( 1979) Venus: Preliminary prediction of the mineral composition |
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| original limits This is a the so-called Monte Venere (Venus Mountain). rounded hill with steep sides, whose...and occasionally coated with small crystals of nepheline, as was noticed by vom Rath. The groundmass is...seems to be specimens. entirely of glass. No nepheline could be detected with certainty. In one rock...analysis of this rock is given in the presence of nepheline. Table II, No. 7. The above descriptions embrace...leucite-trachyte 846 HENRY S. WASHINGTON nepheline in the groundmass. The apparently total absence |
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| -pyramidal: one sixfold rotation axis c. Examples: nepheline (7 Sect. 11.6.3), cancrinite (7 Sect. 11.6.4)...the Moon (7 Chap. 30), the inner planets Mercury, Venus, Mars and its satellites, as well as for the asteroids...constituent in granites (e.g., Rössing, Namibia), nepheline-syenite (e.g., IlĂmaussaq, Greenland), pegmatites...mineralogy, and it can reach larger grain size in nepheline syenite and related pegmatite (. Fig. 11.5; 7...magmatic rocks, particularly in diorite, syenite and nepheline-syenite, as well as in mafic metamorphic rocks |
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| to 1 cwt. This much resembles the Middle Headon Venus Bed (c) Drab sandy clay like that in brickyard ;...occurred above this, I take to be the Middle Headon Venus Bed, while the mottled red and green clays or marls...volcanic rocks of Ayrshire and East Fife and the nepheline-basalts (presumably Tertiary) of Caithness, with...abundant in Scotland, which contain not a few nepheline-bearing rocks. The remaining volcanic rocks of |
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| alkalies and halogens to account for the presence of nepheline co-existing with calcic (An 9D-99) plagioclase...not forget the lessons from other bodies, such as Venus, and not imagine that every large enigmatic circular |
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| the surface-atmosphere interaction of the planet Venus because these are important and because they are...features and atmospheres of the planets Mercury, Venus, Earth, and Mars. Indeed we present evidence that...Origin and evolution Chemistry and petrology of Venus The atmosphere and surface of Mercury Mars The Moon... The results of the calculation are albite nepheline (2.b) jadeite A theoretical treatment of this...assumes the form (2.2) for the case where albite, nepheline, and jadeite are all stoichiometric compounds |
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| but are very much lower than data reported by Venus Flytrap flights and early satellites. To determine...OCCURRENCE .OF NEPHELINE Louis H. Fuchs Argonne National Laboratory, Argonne, Illinois Nepheline has been...bands of olivine. Microprobe analyses of the nepheline containing glasses indicate that they are undersaturated...grains in Hamlet is probably representative of nepheline in this meteorite; the analyzed atomic ratio of...average of 87% deduced from the cell parameters. No nepheline was observed in the powder patterns of colored |
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| (P Leueite) #Ratefl~ite (Fluor) ~Sommite, Dana(Nepheline) #Rauehkalk (Dolomite) #Spartalte of Bre/th. (Calcite)...(Scheererite) #Variolite Yabicoja from Tnapaca, in Peru Venus' or Cupid's Pencils #Ypoleime of Boud. (Phcephorocaleite) |
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| (P Leueite) #Ratefl~ite (Fluor) ~Sommite, Dana(Nepheline) #Rauehkalk (Dolomite) #Spartalte of Bre/th. (Calcite)...(Scheererite) #Variolite Yabicoja from Tnapaca, in Peru Venus' or Cupid's Pencils #Ypoleime of Boud. (Phcephorocaleite) |
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| are similar to those in CV chondrites (e.g., nepheline, sodalite, ferrous olivine, hedenbergite, andradite...nickel-rich sulïŹdes, fayalitic olivine (Fa30 â 60), nepheline, and sodalite. Chondrules in CVR chondrites are...Al-rich (bluish) ïŹnegrained material composed of a nepheline-like phase resulted from in situ aqeuous alteration...16O-poor compositions of secondary minerals (nepheline, sodalite, andradite, and hedenbergite) in CV...16O-enriched, whereas melilite and secondary nepheline in CAIs from metamorphosed CO chondrites Kainsaz |
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| pegmatite containing giant crystals of regirine and nepheline and large quantities of rare minerals, especiallymosandrite...and the islet of Bratholmen, to see a type of nepheline-syenite. Returning to Brevik, the journey was...the party left Bergen for Newcastle by the s.s. Venus. |
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| alteration of two other minerals, sodalite and nepheline, which existed in the Earth beforehand. Analcime...minerals that help form anal cime are sodalite and nepheline. The biggest problem facing collectors who are...3,025 miles Rotation: 59 days Satellites: 0 ⹠VENUS Orbital revolution: 224 days Distance from Sun:...Above: A Radar Mapper vessel approaching the planet Venus. atmosphere or life. Tinier still are meteors or |
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| synnyrite, missourite, and yakutite; Đ°Đżd (4) nepheline syenite. Each rock from these series occurs in...autometasomatic in their origin, are also observed in the nepheline syenites. 4. Unified compositional evolution of...dspar, pyroxenefeldspar, and, in some areas, nepheline-arfvedsonite-aegirine-feldspar parageneses replace...metasomatism in association with the intrusion o f nepheline syenite) were added to the rocks in progressively..."aegirinites," anchimonomineral pyroxenic (rarely with nepheline) rocks, in which the main mineral contains up |
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| another conventional wisdom, namely that the nepheline-normative trachytes and phonolites, and peralkaline...Shield, granite petrogenesis, silicic rocks on Venus, silicate liquid immiscibility within volcanic rocks...dyke swarms of the Canadian Shield, granites on Venus, silicate-liquid immiscibility, and the IndiaEurasia |
