Zobrazeno 1 - 10 of 33 pro vyhledávání: '"Bernard Auvray"'
1
Late Archaean granites: a typology based on the Dharwar Craton (India)
Autor: Bernard Auvray, Mudlappa Jayananda, Hervé Martin, Jean-François Moyen
Publikováno v: Precambrian Research. 127:103-123
Extensive field work in the Eastern Dharwar Craton, associated with petrographic and geochemical (major and trace elements) investigations, allows four main types of Late Archaean granitoids to be distinguished. (1) Na-rich granitoids of trondhjemiti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fcf20acd54645f8b01e4485747d53b7
https://doi.org/10.1016/s0301-9268(03)00183-9
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2
Late Archaean (2550–2520 Ma) juvenile magmatism in the Eastern Dharwar craton, southern India: constraints from geochronology, Nd–Sr isotopes and whole rock geochemistry
Autor: Hervé Martin, Jean-Jacques Peucat, Jean-François Moyen, Bernard Auvray, B. Mahabaleswar, Mudlappa Jayananda
Publikováno v: Precambrian Research. 99:225-254
The results of field, geochronologic, geochemical and isotopic studies are presented for the granitoids that occur east of the Closepet batholith up to the Kolar schist belt (KSB). Field data, such as common foliation, strong shear deformation occasi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97c4c912a9666e236a37928b0dc7bb07
https://doi.org/10.1016/s0301-9268(99)00063-7
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3
3.5 Ga old terranes in the West African Craton, Mauritania
Autor: Bernard Auvray, Christiane Caruba, Alain Potrel, Jean P. Burg, C. Mark Fanning, Jean Jacques Peucat
Publikováno v: Journal of the Geological Society. 153:507-510
Evidence for early Archaean relicts in the northern part of the West African Craton are provided from ion-microprobe (SHRIMP) U-Pb zircon and Sm-Nd whole-rock ages in the West Reguibat Rise of Mauritania. The U-Pb ages range between 3515 ± 15 Ma and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::617e84bbba3dc0f28d3e04752755811d
https://doi.org/10.1144/gsjgs.153.4.0507
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5
Mineralogy, Chemistry, and Genesis of the Boninite Series Volcanics, Chichijima, Bonin Islands, Japan
Autor: Robert W. Nesbitt, Russell S. Harmon, Bernard Auvray, Phillipe Vidal, Rex N. Taylor, Ian W. Croudace
Publikováno v: Journal of Petrology. 35:577-617
The Bonin archipelago represents an uplifted fore-arc terrain which exposes the products of Eocene supra-subduction zone magmatism. Chichijima, at the centre of the chain, represents the type locality for the high-Mg andesitic lava termed boninite. T
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec633403fe61f26d1b227b52a8631da4
https://doi.org/10.1093/petrology/35.3.577
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6
New injection experiments in non-Newtonian fluids
Autor: J. Bremond d'Ars, Hervé Martin, P. Davy, E. Hallot, Bernard Auvray
Publikováno v: Terra Nova. 6:274-281
In order to identify the dominant non-Newtonian effects which occur during the injection of a new Newtonian magma through a partially crystallized magma chamber, we have performed some preliminary analogue experiments which enable us to point out sev
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32ce77aefcaf10a1dbb6e95c36703300
https://doi.org/10.1111/j.1365-3121.1994.tb00495.x
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7
Mantle heterogeneity in northeastern Africa: evidence from Nd isotopic compositions and hygromagmaphile element geochemistry of basaltic rocks from the Gulf of Tadjoura and southern Red Sea regions
Autor: Jean-Alix Barrat, Bernard Auvray, H. Hamdi, Bor-ming Jahn, J. L. Joron
Publikováno v: Earth and Planetary Science Letters. 101:233-247
Basaltic rocks from the Gulf of Tadjoura and southern Red Sea regions have been analysed for their Nd isotopic compositions and major and trace element concentrations. The wide variation in isotopic and geochemical compositions of the basaltic rocks
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ec0b5b8d27689e70e763b172f235203
https://doi.org/10.1016/0012-821x(90)90156-r
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8
Archean crustal evolution in China: U-Pb geochronology of the Qianxi Complex
Autor: Bernard Auvray, Q.H. Shen, Dunyi Liu, Zong-qing Zhang, Bor-ming Jahn
Publikováno v: Precambrian Research. 48:223-244
The Qianxi Complex (formerly the Qianxi Group) in eastern Hebei Province is a key terrain for studying the Archean crustal evolution of the Sino-Korean Craton in China. The evolution of the complex involved several stages of supracrustal deposition a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::410c4d90eaf88b471630fe606543a450
https://doi.org/10.1016/0301-9268(90)90010-n
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10
Le Massif Armoricain / The Armorican Massif
Autor: Claude Le Corre, Michel Robardet, Bernard Auvray, Michel Ballèvre
Publikováno v: Périodiques Scientifiques en Édition Électronique.
The Armorican Massif — This synthesis is an attempt to collect the whole of accepted data related to stratigraphy, magmatism, metamorphism and tectonics in the Armorican Massif. The data show that this area is characterized from about 2000 Ma, by a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28ad62497bd4bf1fedfccd287fb0d996
https://www.persee.fr/doc/sgeol_0302-2692_1991_num_44_1_1865
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