[Archives de la Parole]. , Khambag (Bengali Comic Song) / William Sinkler Darby, collecteur ; Monamatha Nath Roy [i.e. Babu Manmatha Nath Ray], chant ; accompagnement instrumental (harmonium indien, tablâ)

[Traditions. Asie. Inde]

High precision U/Pb zircon dating of the Chalten Plutonic Complex (Cerro Fitz Roy, Patagonia) and its relationship to arc migration in the southernmost Andes

We report new high-precision U/Pb ages and geochemical data from the Chalten Plutonic Complex to better understand the link between magmatism and tectonics in Southern Patagonia. This small intrusion located in the back-arc region east of the Patagonian Batholith provides important insights on the role of arc migration and subduction erosion. The Chalten Plutonic Complex consists of a suite of calc-alkaline gabbroic to granitic rocks, which were emplaced over 530 kyr between 16.90 +/- 0.05 Ma and 16.37 +/- 0.02 Ma. A synthesis of age and geochemical data from other intrusions in Patagonia reveals (a) striking similarities between the Chalten Plutonic Complex and the Neogene intrusions of the batholith and differences to other back-arc intrusions such as Torres del Paine (b) a distinct E-W trend of calc-alkaline magmatic activity between 20 and 17 Ma. We propose that this trend reflects the eastward migration of the magmatic arc, and the consistent age pattern between the subduction segments north and south of the Chile triple junction suggests a causal relation with a period of fast subduction of the Farallon-Nazca plate during the Early Miocene. Previously proposed flat slab models are not consistent with the present location and morphology of the Southern Patagonian Batholith. We advocate, alternatively, that migration of the magmatic arc is caused by subduction erosion due to the increasing subduction velocities during the Early Miocene.

Charles de Gaulle, la conquête de l'histoire : exposition, 16 juin-14 octobre 1990, Bibliothèque nationale, [Paris] / [catalogue rédigé par Michèle Le Pavec-Dorsemaine ; préf. d'Emmanuel Le Roy Ladurie]

[Exposition. Paris, Bibliothèque nationale. 1990]

Le dictionnaire de l'Académie françoise, dédié au Roy. T. 2. L-Z

Collection : Archives de la linguistique française ; 1

Le dictionnaire de l'Académie françoise, dédié au Roy. T. 1. A-L

Collection : Archives de la linguistique française ; 1

La deffense du poëme heroïque : avec quelques remarques sur les oeuvres satyriques du sieur D*** dialogues en vers et en prose ; [précédé de Esther : poëme heroïque composé et dedié au roy] ([Reprod.]) / [par le sieur de Boisval]

Collection : Archives de la linguistique française ; 113