Search Results - "Ayer, J. A"

Uranium-lead zircon systematics in the Sudbury impact crater-fill; implications for target lithologies and crater evolution by Petrus, J. A, Kenny, G. G, Ayer, J. A, Lightfoot, P. C, Kamber, B. S

“…The Sudbury impact structure is one of only a few terrestrial impact craters capable of providing insight into large impact processes. However, despite more…”
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Hume: A Very Short Introduction by Ayer, Alfred, Ayers, Alfred

“…Hume's "naturalist" approach to a variety of philosophical topics resulted in original theories about perception, self-identity, causation, morality, politics,…”
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Spatial and temporal variations in the geochemistry of komatiites and komatiitic basalts in the Abitibi greenstone belt by Sproule, R.A., Lesher, C.M., Ayer, J.A., Thurston, P.C., Herzberg, C.T.

“…Komatiites and komatiitic basalts in the Abitibi greenstone belt exhibit pronounced spatial and temporal variations in major and trace element geochemistry…”
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Niobium-enriched basalts from the Wabigoon subprovince, Canada: evidence for adakitic metasomatism above an Archean subduction zone by Wyman, D.A., Ayer, J.A., Devaney, J.R.

“…Late Archean niobium-enriched basalts from the Central Sturgeon Lake assemblage and Neepawa group of the western Wabigoon subprovince have mantle-normalized…”
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Chalcophile element geochemistry and metallogenesis of komatiitic rocks in the Abitibi greenstone belt, Canada by Sproule, R. A, Lesher, C. M, Houlé, M. G, Keays, R. R, Ayer, J. A, Thurston, P. C

“…Komatiitic rocks occur in four lithotectonic assemblages in the Abitibi greenstone belt of the Archaean Superior province: the 2750 to 2735 Ma Pacaud…”
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The formation of Neoarchean continental crust in the south-east Superior Craton by two distinct geodynamic processes by Mole, D.R., Thurston, P.C., Marsh, J.H., Stern, R.A., Ayer, J.A., Martin, L.A.J., Lu, Y.J.

“…•Large new time–space geochronological, geochemical and isotopic dataset used to analyse crustal evolution in the Archean south-east Superior Craton.•We…”
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Depositional gaps in Abitibi greenstone belt stratigraphy; a key to exploration for syngenetic mineralization by Thurston, P. C, Ayer, John A, Goutier, J, Hamilton, Michael A

“…Models of greenstone belt development are crucial for exploration. Allochthonous models predict belts to be a collage of unrelated fragments, whereas…”
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Neoarchean evolution of differing convergent margin assemblages in the Wabigoon Subprovince: geochemical and geochronological evidence from the Lake of the Woods greenstone belt, Superior Province, Northwestern Ontario by Ayer, J.A., Davis, D.W.

“…The Neoarchean Lake of the Woods greenstone belt is subdivided into three lithostratigraphic assemblages: a lowermost mafic volcanic assemblage: a…”
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Dil, doğruluk ve mantık: Alfred Jules Ayer ; çeviren, Vehbi Hacıkadiroğlu by Ayer, A. J, Hacıkadiroğlu, Vehbi

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Hume: A. J. Ayer; Türkçesi, Cemal Atila by Ayer, A. J, Atila, Cemal

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Rejoinder to Professor Malcolm by Ayer, A. J.

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Professor Malcolm on Dreams by Ayer, A. J.

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The Timmins-Porcupine gold camp, Ontario; anatomy of an Archean greenstone belt and ontogeny of gold mineralization by Bateman, Roger, Ayer, John A, Dubé, B

“…New structural and geochronological data and interpretations from the Timmins-Porcupine gold camp, Abitibi subprovince, more precisely define the stratigraphy…”
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On a Supposed Antinomy by Ayer, A. J.

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Negation by Ayer, A. J.

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Has Austin Refuted the Sense-Datum Theory? by Ayer, A. J.

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Pericontinental crustal growth of the southwestern Abitibi Subprovince, Canada; U-Pb, Hf, and Nd isotope evidence by Ketchum, John W. F, Ayer, John A, van Breemen, Otto, Pearson, Norman J, Becker, Jens K

“…The Abitibi subprovince is widely regarded as a classic example of Neoarchean continental crust formed in an ensimatic setting. However, sialic crust as old as…”
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CHANCE by Ayer, A. J.

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Tectonic and metallogenic implications of regional seismic profiles in the Timmins mining camp by Snyder, David B, Bleeker, W, Reed, Laurie E, Ayer, John A, Houlé, Michel G, Bateman, Roger

“…Four regional seismic reflection profiles totalling 153 line km were acquired near Timmins, Ontario, within the southern Abitibi greenstone belt. Five…”
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Mantle processes in an Archean orogen: Evidence from 2.67 Ga diamond-bearing lamprophyres and xenoliths by Wyman, D.A., Ayer, J.A., Conceição, R.V., Sage, R.P.

“…The world's oldest diamond deposits occur in ∼2.67 Ga dikes and heterolithic breccias emplaced into greenstone belts of the Wawa and Abitibi Subprovinces,…”
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