Neutron porosity logging and core porosity measurements in the Beauvoir granite, Massif Central Range, France

1995 ◽  
Vol 32 (2) ◽  
pp. A73
Keyword(s):  
Massif Central ◽  
Granite Massif ◽  
Neutron Porosity ◽  
Porosity Measurements

Geochemistry of Auriat granite (Massif Central, France)

1984 ◽  
Vol 45 (3-4) ◽  
pp. 263-277 ◽  
Author(s):  
D. Arniaud ◽  
C. Dupuy ◽  
J. Dostal
Keyword(s):  
Massif Central ◽  
Granite Massif

scholarly journals Geochemical Signature of Magmatic-Hydrothermal Fluids Exsolved from the Beauvoir Rare-Metal Granite (Massif Central, France): Insights from LA-ICPMS Analysis of Primary Fluid Inclusions

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-25 ◽  
Author(s):  
Matthieu Harlaux ◽  
Julien Mercadier ◽  
Wilédio Marc-Emile Bonzi ◽  
Valentin Kremer ◽  
Christian Marignac ◽  
...  
Keyword(s):  
Fluid Inclusions ◽  
Rare Metal ◽  
Hydrothermal Fluids ◽  
Raman Spectrometry ◽  
Peraluminous Granite ◽  
Geochemical Composition ◽  
Massif Central ◽  
Granite Massif ◽  
Rare Metal Granite ◽  
Primary Fluid

The Beauvoir granite (Massif Central, France) represents an exceptional case in the European Variscan belt of a peraluminous rare-metal granite crosscutting an early W stockwork. The latter was strongly overprinted by rare-metal magmatic-hydrothermal fluids derived from the Beauvoir granite, resulting in a massive topazification of the quartz-ferberite vein system. This work presents a complete study of primary fluid inclusions hosted in quartz and topaz from the Beauvoir granite and the metasomatized stockwork, in order to characterize the geochemical composition of the magmatic fluids exsolved during the crystallization of this evolved rare-metal peraluminous granite. Microthermometric and Raman spectrometry data show that the earliest fluid (L1) is of high temperature (500 to >600°C), high salinity (17–28 wt.% NaCl eq), and Li-rich (Te<−70°C) with Na/Li ratios ~5. LA-ICPMS analyses of L1-type fluid inclusions reveal that the chemical composition of this magmatic-hydrothermal fluid is dominated by Na, K, Cs, and Rb, with significant concentrations (101–104 ppm) in rare-metals (W, Nb, Ta, Sn, and Li). This study demonstrates that primary fluid inclusions preserved the pristine signature of the magmatic-hydrothermal fluids in the Beauvoir granite but also in the metasomatized W stockwork, despite the distance from the granitic cupola (>100 m) and interaction with external fluids.

The behaviour of rare-earth elements and Y during the rock weathering and soil formation in the Řı́čany granite massif, Central Bohemia

1998 ◽  
Vol 215 (1-2) ◽  
pp. 101-111 ◽  
Author(s):  
Luděk Minařı́k ◽  
Anna Žigová ◽  
Jiřı́ Bendl ◽  
Petr Skřivan ◽  
Martin Št'astný
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Soil Formation ◽  
Rock Weathering ◽  
Massif Central ◽  
Granite Massif

Hydrothermal Alteration in the Auriat Granite (Massif Central, France): Analogy with a Radwaste Disposal

1987 ◽  
pp. 449-461
Author(s):  
J. C. Parneix ◽  
M. T. Menager ◽  
L. Trotignon ◽  
J. C. Petit
Keyword(s):  
Hydrothermal Alteration ◽  
Massif Central ◽  
Granite Massif

Isotopic systematics (O, H, C, Sr, Nd) of superimposed barren and U-bearing hydrothermal systems in a Hercynian granite, Massif Central, France

1990 ◽  
Vol 88 (1-2) ◽  
pp. 85-98 ◽  
Author(s):  
Laurent Turpin ◽  
Jacques L. Leroy ◽  
Simon M.F. Sheppard
Keyword(s):  
Hydrothermal Systems ◽  
Massif Central ◽  
Granite Massif

The Beauvoir topaz-lepidolite albite granite (Massif Central, France); the disseminated magmatic Sn-Li-Ta-Nb-Be mineralization

1992 ◽  
Vol 87 (7) ◽  
pp. 1766-1794 ◽  
Author(s):  
Michel Cuney ◽  
Christian Marignac ◽  
Alain Weisbrod
Keyword(s):  
Massif Central ◽  
Granite Massif ◽  
Albite Granite

Potassium-feldspathization and greisenization of Koktenkol granite massif (central Kazakhstan)

1971 ◽  
Vol 13 (5) ◽  
pp. 658-669 ◽  
Author(s):  
V.A. Pavlov ◽  
O.I. Yashukin
Keyword(s):  
Massif Central ◽  
Granite Massif
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