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| | Journal (article/letter/editorial) | | tourmalines from
the Mata Azul pegmatitic field, Central Brazil
Simone F. da Silva1,2*, Márcia A. Moura2, Hudson...3007, Campinho, 36415-000 Congonhas, Minas
Gerais, Brazil; simone.geologia@gmail.com
2
Instituto de Geociências...Campus Darcy Ribeiro, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil
3
Centro de Desenvolvimento...Wernec, 30161970, Belo
Horizonte, Minas Gerais, Brazil
*
Corresponding author
1
This study characterizes...pegmatites of the
Mata Azul Pegmatitic Field in central Brazil. The differences were assessed by applying electron-microprobe | 👁 Image
| | Book | | 2019 ©do autor 1' edição: 2019 Direitos reservados desta edição: Universidade Luterana do Brasil Capa...pedreira da Prefeitura, Morro Reuter/RS, coleção do Laboratório de Geologia e Mineralogia da ULBRA: fotografia:...Paulo César Pereira das. Enciclopédia dos minerais do Brasil / Paulo César Pereira das Neves e Daniel Atencio...ULBRA/Canoas ISBN 978-85-7528-574-9 Dados técnicos do livro Fontes: Gloucester MT, Calibri Papel: cuché........................................ 28 GRUPO DO TALCO........................................... | 👁 Image
| | Journal (article/letter/editorial) | | inclusions of quartz, plagioclase, biotite, and zircon
concentrated in the central part of the grains...Ooty-Kunda road
Ooty-Kunda road
Doddabetta quarry
Doddabetta quarry
gbl/fls
Kodanad
gbl
gbl
Anaikatti...hornblende ['" secondary]; cum, cummingtonite; zrn, zircon; rt, rutile; pyrr, pyrrhotite;
chal, chalcopyrite;...to a variable degree. The bent
and kinked grains do not show any signs of recovery and recrystallization...The density data of inclusions in quartz II and
III do not show any correlation with the degree of deformation | 👁 Image
| | Journal (article/letter/editorial) | | Williams, I.S., Campbell, I.H., Gresham, J.J.:
Zircon xenocrysts from the Kambalda volcanics: age constraints...quartz, biotite and feldspars from
Erstfeld to the Levantina Nappe, Swiss Alps, and its geological
significance | 👁 Image
| | Journal (article/letter/editorial) | | compared
to CO2-rich Adirondack fluid inclusions that do not lie
within this zone (Th = 45.9 to + 31.0 ~ C)...1987). In these cases the fluids in the inclusions do not
contain samples of the peak metamorphic fluid...titanite; Zrn, zircon
a Location numbers shown on Fig. 1
b Exhibit mylonitie textures (see text)
Do not exhibit...feldspars in these samples.
However, these porphyroclasts do not contain coarse exsolution
typical of many of...inclusions and feldspar compositions were examined do
not include those collected from the smaller cross-cutting | 👁 Image
| | Journal (article/letter/editorial) | | breccia of the latter in some member of the former.
I do not suppose that this statement will be questioned...resemblance set
up. The crystalline schists also do not exhibit, as a rule, any tendency to pass into...are given in
the text. Others there may be, for I do not pretend to have spent much time
in searching...whiteness and comparative purity exhibited in the quarry.
We failed to discover
any fossils at the locality...which indicate earth-movements. In one part
of the quarry the marble is banded with layers of mica, often | 👁 Image
| | Report (issue) | | developed and foliation well developed. Individual plates do not cut the plane of foliation at high angles. Very...rocks. The conglomerate stringers are lenslike and do not extend for more than a few meters or tens of...contain Macrodon juttensis Pich., Rhynchonella
levantina Bittner, R. baliana, Pergamidia eumenea Bittner...worldwide averages for ultramafic
rocks, and they do not suggest any unusual concentrations in the
stocks...not
known from direct evidence; however, the stocks do cut the
sequence of Kalabak, and two of the stocks | 👁 Image
| | Book (volume) | | Barroso-Barcenilla CITEUC—Centro de Investigação da Terra e do Espaço,
Observatório Astronómico, Coimbra, Portugal;...Pedro Morgado Dinis MARE—Centro de Ciências do Mar e do Ambiente and Departamento de Ciências da Terra...Barcelona,
Spain
Vítor Magalhães Instituto Português do Mar e da Atmosfera, Lisbon, Portugal;
Faculdade de...Barcelona, Spain
Marta Neres Instituto Português do Mar e da Atmosfera, Lisbon, Portugal;
Faculdade de...Universidade de Lisboa,
Lisbon, Portugal;
Universidade do Algarve, Faro, Portugal
Fernando Nieto Departamento | 👁 Image
| | Book | | P LAT F O R M
ea
45°
24
og
11
br
e
D anub
Do
23
Bucharesti
N.
21
20
10
Balk
ian N
r e...Se e
c
Ma
20°
B
- Iv
Ja
Z
-
200 km
e
Pr
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a
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Fig. 1 Major structural units of...s
ylvan
ans
Tr
South Carpathian U
Vardar U
U
DO
B
Dr
0
100
U
tic
ria
Ad
Sa
v
S aU
Bo -U
sn...the Sopron Mica-schist Formation. Récenyi st. quarry, Sopron Mts. Scale bar:
0.2 mm (Photo: J. Ivancsics)...together with those based
on Rb/Sr, 39Ar/40Ar and zircon fission-track
methods (Frank et al. 1996) are highly | 👁 Image
| | Book | | of 13 experiments was successfully completed. To do this, a workforce of several hundred Earth scientists...digital format for reading into a computer (a PC will do) for further analysis. The total cost of coordinating...detective investigation of the evolution of a continent? Do the clues make much better sense now that they can...and data on CD-ROM provide you with the means to do so. Chapter 2 sets the scene with a brief review...lines. Note that the size and shape of the terranes do not change significantly with time (approximate direction | 👁 Image
| | Book | | established exclusively on a
lithological basis, do not conform to modern international requirements...alternating continental, lagoonal and marine deposits that do not fully conform to the
international requirements...{P.nnndnnm~
/ o__, .=
....
. . . . . .
_P,~___,do.~',~ag~
___
ma
.
3~"
0
v
~,,:~,~. o ~ ,
. ....section of the western Dolomites (2 nd sequence) do minor marine
deposits occur.
The 3 rd sequence shows...northeast Croatia and in Bosnia, the available data do not permit clear
interpretation and comparison of | 👁 Image
| | Book | | area of the Shield (Bojar et al., 2002). Apatite, zircon and sphene fission
track analyses from the Neoproterozoic...System. The El Umra Granite has been dated by single zircon at
654 and 690 Ma (Shalaby et al., 2005). The Wadi...whole rock
Rb-Sr and ca. 600–590 Ma by SHRIMP U-Pb zircon) in the Egyptian Eastern Desert
is debated. They...Hafafit Neoproterozoic gneisses give Rb-Sr and U-Pb zircon
ages of 750–600 Ma. The initial 87Sr/86Sr of 0...involvement of older crustal rocks includes: 1) U/Pb zircon
ages up to 1.6 Ga (Sultan et al., 1990). This age | 👁 Image
| | Book | | publications. Because the areas
described by various authors do not coincide with the divisions used in this book...Rs 8
Mhercrystalline basement
>... : 1... .: 577) Do arORY OeMeee
IMectaMMOLDOICISCTICES.
5 « <5 ¢ ss...geology of western Europe, that is to the uplands, we do again find strong geographical
scatter coupled with...various upland regions of western
Europe has nothing to do with their earlier geologic history. Instead it is...generally situated about 1 km above sea level. Rarely do they rise to
an altitude of more than 1.5 km. This | 👁 Image
| | Journal (issue) | | d'argent, d'or et de 7 410 platine Sur un cristal de Zircon a'g'b'a , : Conwentz , H .: Untersuchungen über...of Nematophycus in the silurian beds at Tymawr quarry , Rumney 501 Stur , D.: Ueber die Flora der feuerfesten...Contribuições para a theoria das anomalias opticas. Extracto do Jornal de Sciencias mathematicas, physicas e naturaes...liegen . W. Bruhns. A. Collon : Sur un cristal de Zircon a'g'b'ag. ( Ann. soc . géol. de Belgique. 19. Bull...Terebratula turcica n. sp., Rhynchonella anatolica, levantina n. sp., Spiriferina cf. Emmrichië Sss. , Discina |
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