Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ch. Marignac"'
Autor:
M. Ballèvre, Ch. Marignac, Abderrahim Essaifi, J.-L. Lagarde, Serge Fourcade, Ramon Capdevila
Publikováno v:
Journal of Metamorphic Geology. 22:25-43
During emplacement and cooling, the layered mafic–ultramafic Kettara intrusion (Jebilet, Morocco) underwent coeval effects of deformation and pervasive fluid infiltration at the scale of the intrusion. In the zones not affected by deformation, prim
Autor:
S. Makhoukhi, M. Bouabdelli, A. Bastoul, J.M. Schmitt, C. Marrakchi, Ch. Marignac, J. Pironon
Publikováno v:
Journal of Geochemical Exploration. :545-551
Within the Touissit-Bou Beker area several Mississippi Valley-type (MVT) deposits occur forming a word-class mining district, in northeastern Morocco and adjacent Algeria. The Pb Zn deposit occurs exclusively within dolomitic Aaleno-Bajocian condense
Publikováno v:
Journal of Geochemical Exploration. :109-113
The Touissit-Bou Beker district mineralization is located in a lower Jurassic condensed series on top of a major basement horst. Field and laboratory data from several ore deposits indicate that Pb–Zn mineralization took place in dolomite strata by
Publikováno v:
Journal of Geochemical Exploration. :561-564
During post-thickening extensional collapse, deformation can be localised within flat-lying decollement zones where fluids are present. General questions concern the nature and origin of fluids, the scale of their transfer, and the coupling between s
Autor:
J.-L. Joron, A. Semiani, Ch. Marignac, Jean-Jacques Peucat, Serge Fourcade, Jean Robert Kienast, Marie-Christine Boiron
Publikováno v:
Journal of Metamorphic Geology. 14:783-801
In the W Hoggar (Algeria), the major transcurrent N–S East Ouzzal shear zone (EOSZ) hosts several world-class gold deposits over a 100-km length. The late Pan-African EOSZ separates two contrasting Precambrian domains: the Archaean In Ouzzal block
Publikováno v:
Journal of Volcanology and Geothermal Research. 51:115-131
Metamorphic/magmatic to hydrothermal fluids trapped in fluid inclusion planes (FIP) were studied in a microfractured granite sill from a deep level (3483–3486 m b.g.l.) of the well Monteverdi 7 (Larderello geothermal field). This granite has record
Autor:
Ch. Marignac
Publikováno v:
Mineralium Deposita. 25:84-87
Publikováno v:
Pre-Mesozoic Geology in France and Related Areas ISBN: 9783642849176
The French Massif Central (FMC) is an old mining area. As early as in the Gallo-Roman times, it was mined for Au, Ag, Pb, and Sn; but the great mining epoch was in the 18th–19th centuries, with Sb as the main product. After a decline at the onset o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d747911ad57e12e55d388b5498a663eb
https://doi.org/10.1007/978-3-642-84915-2_30
https://doi.org/10.1007/978-3-642-84915-2_30
Autor:
Ch. Marignac
Publikováno v:
Mineralium Deposita. 24:176-182
Sphalerite skeletal crystals in inclusions in chalcopyrite (so-called sphalerite stars) are widely thought to be the result of high-temperature unmixing processes. Detailed observations in the chalcopyrite ores at Ain Barbar (Algeria) demonstrate tha
Autor:
Ch. Marignac
Publikováno v:
Annalen der Chemie und Pharmacie. 42:215-226