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Anorthite from
Vista Alegre, Rio Grande do Sul, Brazil


Locality type:Municipality
Classification
Species:Anorthite
Formula:Ca(Al2Si2O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Anorthite data
Locality Data:Click here to view Vista Alegre, Rio Grande do Sul, Brazil
Data Identifiers
Mindat Occurrence Record ID:1476783
Long-form Identifier:1:3:1476783:8
GUID (UUID V4):6a34326a-d9bd-4f4a-8db6-9a24f74e4eda
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
shatter cones in basalt from the Vista Alegre impact structure, Brazil 5  Lidia PITTARELLO1,2 , Fabrizio...Pandi a Cal ogeras 51, 13083-970 Campinas SP, Brazil 6 Natural History Museum, Burgring 7, A-1010, Vienna...features. Shatter cones’ from the Vista Alegre impact structure, Brazil, formed in fine-grained basalt of...are not consistent with any known mineral, but they do suggest a possible rare or new type of clinopyroxene...These shatter cones formed in the Vista Alegre impact structure, Brazil, in the basalt of the Serra Geral
Journal (article/letter/editorial)
CRATER, BRAZIL A. A. Abraham, J. M. Flexor, and S. L. Fontes. Observatório Nacional/MCT, Brazil. E-mail:...the southwestern region of the Parnaiba Basin, Brazil, is presented. This signature was established by...Universidade Federal de Santa Catarina, 88040–900, Brazil. E-mail: marcelo_qmc@yahoo.com.br Introduction:...Acadêmico Hélio Ramos, s/n, Cid. Univ. 50740–530, Brazil. E-mail: barboant@hotmail.com. 2DGEO-UFPE, Av....Acadêmico Hélio Ramos, s/n, Cid. Univ. 50740–530, Brazil. E-mail: neumann@ufpe.br WHAT DOES THE CM CHONDRITE
Report (issue)
and stratigraphic investigations in the Sabana Grande (Slodowski, 1956), Mayagiiez (Mattson, 1960), and...covering the entire island (exclusive of Sabana Grande, Gudnica and Rincén quadrangles) (Fig. 3). In recent...many units, such as Formations A, B, and C of the Rio Majada Group, were desig- nated with (1966-1976)...Concepcién Fm Sabana Grande Fm SAN GERMAN DOMAIN JIC JICARA MGC RYO Monte Grande-Cotui Fms El Rayo Fm...Palmas amphibolite melange e e| P Pendotite RCL Rio Culebrinas Fm [724 PES Palma Escrita Fm [IT] ANN
Journal (article/letter/editorial)
Centenario 303, CP: 96, CEP 13400 Piracicaba, SP, Brazil Editorial handling by Dr. R. Fuge Available online...km2, at the station of Vargem Grande), and is mainly formed by the Rio Ucayali, flowing from the Andean...the Rio Maranõn. The following tributaries are successively contributing to the main stem: Rio Iça...Iça, Rio Jutai, Rio Japurá, Rio Negro, coming from the northern side and Rio Juruá, Rio Purus, and Rio...Amazon basin at Obidos. Several contributors such as Rio Tefe, Coari, Trombetas and others, have not been
Journal (article/letter/editorial)
breccias also occur as thin to the NE-trending Vista Alegre Fault Zone (Bobis and (5 cm) veins and 30–50...= K-mica + 6Qtz + 2K+ 3CaCO3+ 2K-mica + 2H+ = Anorthite+ 3CO 2 + 3H2O + 2K + HSO4- = H+ + SO42H2S(aq)...alterationmineralization characteristics of the Vista Alegre gold zone, Hinobaan, Negros, Philippines. in
Journal (article/letter/editorial)
suevitic dyke, the volcanic rocks in the drill core do not show any evidence of significant shock deformation...albite-Carlsbad twinning, which allows the estimate of the anorthite content of approximately An40. Locally, the plagioclase...section in the drill core and from the target rocks) do not. The pattern defined by felsic lithologies roughly...in basalts (e.g., Lonar, Kieffer et al. 1976; Vista Alegre, Crosta et al. 2010; Varge~ao, Crosta et al...peculiar features, never described before. The PDFs do not always develop evenly across the grain, but may
Journal (article/letter/editorial)
and Luiza basins (Archean Congo block); Rio ˜ Itapicuru and Rio Jacare greenstone belts (Archean Sao Francisco...kind is described for the Transamazonian belt of Brazil ( Figueirido, 1989; Barbosa, 1990; Teixeira and...oro˜ genic domains of the Sao Francisco craton of Brazil are discussed. 2. Geological Setting of the WCAB...located to the west, between the ˜ Rio Pardo belt (Sao Francisco craton, Brazil ) and the West Congo belt (Miller...blocks during formation of the thrust faults: 9, Rio Muni–Ntem block-high-grade (MP granulite) Archean
Report (issue)
c. - L.cF\ �- 0C\t:;24-0(\ COLOMBIA ECUADOR BRAZIL ,. • 1/f ., ... ... - - II ... - •...of the San tvl iguel tectonic elements 22 pluton, Rio Iluaura, showing rectilinear nature of 19 Schematic...relationship to volcanicity, sedimentation and around the Rio Fortaleza centre 70 deformation 2 4 21 Diagrammatic...of rocks belonging to Pulse I and Pulse 2 of the Rio Huaura area 106 69 Three-component diagram showing...rocks of the Santa Rosa Super-unit from the Rio Huaura and Rio Nepena I0 6 70 CaO and Y contents of rocks
Journal (article/letter/editorial)
materials (e.g., chondrites, eucrites, moon and Earth) do not vary outside of the analytical uncertainty and...beam sputtering. In addition, our current standards do not provide tight control on instrumental mass fractionation...found in normal CV3 CAIs [4, 6]. As such, our data do not show any evidence of a supracanonical 26Al/27Al...during crushing. 65315 contained nothing but anorthite, while 15415 contained minor pyroxene. To ensure...without formation of phyllosilicates. Our FIB sections do not completely overlap, so that the second FIB section
Journal (article/letter/editorial)
Similarly, the FTIR spectra of the three olivines do not show any differences except the composition dependence...all. About some of them reasonable doubts exist. Brazil leading the record containing almost half detected...between 0.13 and 0.78 Ma. Other possible craters are Rio Cuarto (S 3252¢, W 6414¢), Islas Malvinas (S 5100¢...sandstones of the Sao Bento Group of Paraná Basin. Vista Alegre (S 2557¢, W 5241¢). It is a 9.5 km-wide circular...craters are Gilbues (S 1010¢, W 4514¢), Sao Miguel do Tapuio (S 538¢, W 4124¢), Cerro Jarau (S 3012¢
Journal (volume)
studies have shown that some types of pegmatites do not fit into the available schemes of classification...elbaite-schorl series from the Himalaya Mine, Mesa Grande, California, U.S.A.: A detailed investigation....a mixture of phases that can be identified as anorthite, hematite and britholite. The same phases were...enrichment in the Vista Alegre district, Paraná basaltic province, southernmost Brazil. International Geology
Book
Whereas all cannot be mentioned here individually, we do wish to point out a few. Victor Latorre, Director...the N-S belt of Belen-Sierra de Moreno-Limon Verde-Rio Tninsito. This·system could correspond to remnants...rocas igneas y metam6rficas de las Sierras Chica y Grande de Cordova, Rep. Argentina. 11 Congr. lbero-Am...Coastal Cordillera. The Precambrian metamorphic rocks do not include economically important ore deposits....and E. Cedillo eo· C uADOR COLOMBIA s• 5" BRAZIL - - - 10" 10" ~-- I CD .a. FE: C& cc 1s•l--
Book
of kaolinite in any white clay but it is unsa~e to do so without full investigation. The mineral kaolinite...many impurities ; 01~ it occurs in situations which do not permit of its being worked at a p1·ofit either...pett1ntse of Cl1ina, * became inte1 e" ted in this sul,ject, and when in 1745 an American showed him some...Smallhange1~ pits ; and there are besides the Wigford Do,v11, Sha ugh Moor and W atter pits. In the Lee Moo1~...of each of tl1e inclined ' stopes ' or 'strakes' do,vn which the water flo1r,1 s, their dt1ty being to
Book
except where (as with bar in atmospheric contexts) to do so would obscure rather than clarify the sense....system and that, contrary to some opinions, planets do not simply get in the way of real astronomy. CVF...Iron Olivine Fe 1475 (Mg,Fe) 2SiO4 1370 Anorthite CaAl2Si2O8 1360 Feldspar (Na,K)AlSi3O8 1060...Short-term, irregular changes, such as solar flares, do not yet lend themselves to geological investigation...which as we saw is modulated by solar activity. The Rio Negro meteorite, which fell in Argentina in 1934
Book (volume)
drawing up of minutes of council upon subjects which do not belong to any other department of state. The...between Peru and the neighbouring republics of Brazil, Colombia and Ecuador (see Peru), and the northern...has been, gener¬ ally, of the comparatively well-to-do. This fact has greatly affected the character and...discover and repossess the true owner, and he fail to do so, then you can recover them from him. The owner...mechanism of natural laws. As we therefore have only to do with the study of existing complexes of material
 
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