Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Robert Rocchia"'
2
Révision de la limite Crétacé-Tertiaire de la coupe d'Ellès (Tunisie): proposition d'un nouveau parastratotype
Autor: Rakia Said-Benzarti, Narjess Karoui-Yaakoub, Robert Rocchia, Eric Robin, Dalila Zaghbib-Turki
Publikováno v: Geobios. 34:25-37
Resume La reprise de l'etude des six derniers metres de la serie cretacee et des vingt premiers metres de la serie paleocene, basee sur un echantillonnage serre (2–5 cm a la limite K/T et 15–60 cm de part et d'autre de cette limite), nous a permi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb9566bced9b1899451e8eb94e4320a7
https://doi.org/10.1016/s0016-6995(01)80040-1
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3
The K/T stratotype section of El Kef (Tunisia): Events and biotic turnovers
Autor: Omrane Ben Abdelkader, Eric Robin, Pierre Donze, Anne-Louise Maamouri, Robert Rocchia, Habib Ben Salem, L. Froget, Henriette Méon
Publikováno v: Geobios. 30:235-245
At El Kef (NW Tunisia), the absence of bioturbation and the high sedimentation rate preserve a high resolution record of the Cretaceous-Tertiary transition. In the upper part of the Maastrichtian (Mayaroensis zone) planktonic foraminifer assemblages
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6aa2939a4632ec1e0b85cfc87c7c03b0
https://doi.org/10.1016/s0016-6995(97)80098-8
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4
The K/T boundary at Beloc (Haiti): Compared stratigraphic distributions of the boundary markers
Autor: Robert Rocchia, L. Froget, Eric Robin, Hugues Leroux, Xavier Orue-Etxebarria, Jean-Claude Doukhan
Publikováno v: Earth and Planetary Science Letters
Earth and Planetary Science Letters, 1995, 131 (3-4), pp.255-268. ⟨10.1016/0012-821X(95)00032-8⟩
Scopus-Elsevier
International audience; At Beloc, Haiti the Cretaceous-Tertiary boundary (KTB) is characterized by a spherule bed containing glass particles. These particles are considered by some authors as remains of tektites resulting from a nearby impact. Howeve
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25e27d6f80cc2ccd60f2846fe0058045
https://doi.org/10.1016/0012-821x(95)00032-8
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5
Formation of spinels in cosmic objects during atmospheric entry: a clue to the Cretaceous-Tertiary boundary event
Autor: L. Froget, Robert Rocchia, Eric Robin, Ph. Bonté, C. Jéhanno
Publikováno v: Earth and Planetary Science Letters
Earth and Planetary Science Letters, 1992, 108 (4), pp.181-190. ⟨10.1016/0012-821X(92)90021-M⟩
Scopus-Elsevier
Magnetic spinels produced by oxidation of extraterrestrial objects in the atmosphere have a composition distinct from terrestrial spinels. They are characterized by a high iron oxidation state, arising from crystallization under high oxygen fugacitie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53ff4af9ca0353331645ed034bd38182
https://doi.org/10.1016/0012-821x(92)90021-m
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6
Osmium, tungsten, and chromium isotopes in sediments and in Ni-rich spinel at the K-T boundary: Signature of a chondritic impactor
Autor: Eric Robin, Françoise Capmas, Claude J. Allègre, S. Levasseur, Ghylaine Quitté, Jean-Louis Birck, Robert Rocchia
Publikováno v: Meteoritics & Planetary Science
Meteoritics & Planetary Science, 2007, 42 (9), pp.1567-1580. ⟨10.1111/j.1945-5100.2007.tb00591.x⟩
It is now established that a large extraterrestrial object hit the Earth at the end of the Cretaceous period, about 65 Ma ago. We have investigated Re-Os, Hf-W, and Mn-Cr isotope systems in sediments from the Cretaceous and the Paleogene in order to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::776a7c3918396330f26a018998f73533
https://hal.archives-ouvertes.fr/hal-03191662
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7
K/T Impact Remains in an Ammonite from the Uppermost Maastrichtian of Bidart Section (French Basque Country)
Autor: Olivier Pierrard, Irène Lefevre, Eric Robin, Jan Smit, Robert Rocchia
Publikováno v: Geological and Biological Effects of Impact Events ISBN: 9783642639609
In two K/T sections of the French Basque Country, Hendaye and Bidart, ammonites have been found in the last few tens of centimetres of the Maastrichtian. In the Bidart section, one specimen was discovered less than five centimetres below the boundary
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1253f2969e8a2c2b75376ef1a122ed32
https://doi.org/10.1007/978-3-642-59388-8_7
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8
Cosmic markers, 40Ar/39Ar dating and paleomagnetism of the KT sections in the Anjar Area of the Deccan large igneous province
Autor: Narendra Bhandari, Robert Rocchia, Vincent Courtillot, Eric Robin, C Hofmann, Z. G. Ghevariya, Y. Gallet, Gilbert Féraud
Publikováno v: Earth and Planetary Science Letters
Earth and Planetary Science Letters, 2000, 182 (2), pp.137-156. ⟨10.1016/S0012-821X(00)00238-7⟩
Earth and Planetary Science Letters, Elsevier, 2000, 182 (2), pp.137-156. ⟨10.1016/S0012-821X(00)00238-7⟩
Bhandari et al. [Bhandari et al., Geophys. Res. Lett. 22 (1995) 433–436; Bhandari et al., Geol. Soc. Am. Spec. Paper 307 (1996) 417–424] reported the discovery of iridium-bearing sediments sandwiched between basalt flows in the Anjar area (Kutch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f4c1029aae9f936625ffc674cf720ea
https://hal.science/hal-03122827
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9
Enregistrement des événements remarquables de la limite Crétacé–Tertiaire dans la coupe d'Ellès (Tunisie)
Autor: Narjess Karoui-Yaakoub, Robert Rocchia, Dalila Zaghbib-Turki, Habib Belayouni, Eric Robin
Publikováno v: Comptes Rendus de l'Académie des Sciences-Series IIA-Earth and Planetary Science
Comptes Rendus de l'Académie des Sciences-Series IIA-Earth and Planetary Science, 2000, 331 (2), pp.141-149. ⟨10.1016/S1251-8050(00)01390-2⟩
Comptes Rendus de l'Académie des Sciences-Series IIA-Earth and Planetary Science, Elsevier, 2000, 331 (2), pp.141-149. ⟨10.1016/S1251-8050(00)01390-2⟩
The review of the Cretaceous–Paleogene interval deposits of the Elles section based on a detailed sampling gives a good characterization of the K/T boundary and reconstitution of the geological events underlining this boundary. Thus, the discovery
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a0de57c703273c9abfc9568b500b2c0
https://hal.science/hal-03123415
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10
Age of the Guatemala breccias around the Cretaceous-Tertiary boundary: relationships with the asteroid impact on the Yucatan
Autor: Pierre Debrabant, Edwige Masure, Jean-Pierre Bellier, Eric Fourcade, Silvia Gardin, Robert Rocchia, Wilmer Toni Pop, Eric Robin
Publikováno v: Comptes Rendus de l'Académie des Sciences-Series IIA-Earth and Planetary Science
Comptes Rendus de l'Académie des Sciences-Series IIA-Earth and Planetary Science, Elsevier, 1998, 327 (1), pp.47-53. ⟨10.1016/S1251-8050(98)80017-7⟩
Comptes Rendus de l'Académie des Sciences-Series IIA-Earth and Planetary Science, 1998, 327 (1), pp.47-53. ⟨10.1016/S1251-8050(98)80017-7⟩
The upper part of the near K/T boundary limestone breccia deposits which crop out in Guatemala near 16 °N contains impact remains: altered glass spherules (tektites) and elevated concentrations of iridium. This suggests that these deposits could res
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f57b8b2e457cc55b0772ad2b01c22e2
https://hal.archives-ouvertes.fr/hal-03119625
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