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argon

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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP468.8
EISBN: 9781786203687
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Series: GSA Special Papers
Published: 01 May 2015
DOI: 10.1130/2015.2511(03)
Journal Article
Published: 01 June 2005
Clays and Clay Minerals (2005) 53 (3): 234-249.
... , J.L. and Hower , J. ( 1976 ) Mechanism of burial metamorphism of argillaceous sediments: 2. Radiogenic argon evidence . Geological Society of America Bulletin , 87 , 738 – 744 . Aronson , J.L. and Lee , M.C. ( 1986 ) K/Ar systematics of bentonite and shale in contact...
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Journal Article
Published: 01 October 2004
Clays and Clay Minerals (2004) 52 (5): 576-588.
... modélisation des phénomènes de genèse et de migration des hydrocarbures . Rapport 30 943 , Institut Français du Pétrole , 67 pp. Bonhomme , M. , Thuizat , R. , Pinault , Y. , Clauer , N. , Wendling , R. and Winkler , R. ( 1975 ) Méthode de datation potassium-argon...
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Journal Article
Published: 01 July 2000
Geological Magazine (2000) 137 (4): 419-435.
... and 465±2 Ma. The oldest age of 483±3 Ma, from a metabasite pod within the Lough Derg Inlier (sample 15; Fig. 5 ), indicates the presence of some excess argon. This is shown by the slightly U-shaped age profile (Fig. 5 ) and a regression line, on a plot of 40 Ar/ 39 Ar vs. 36 Ar/ 40 Ar plot, which does...
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Journal Article
Published: 01 November 1998
Geological Magazine (1998) 135 (6): 755-768.
Journal Article
Published: 01 September 1998
Geological Magazine (1998) 135 (5): 605-636.
Journal Article
Journal: Geology
Published: 01 May 1998
Geology (1998) 26 (5): 427-430.
... argon in the xenocrysts is as much as ∼450 times older than the host lava, the age of which is independently known, and is an obstacle to dating the lava by using a whole-rock sample. The xenocrysts are impossible to identify from petrography or chemical parameters such as their K/Ca ratios...
Journal Article
Journal: PALAIOS
Published: 01 December 1997
PALAIOS (1997) 12 (6): 552-567.
Journal Article
Published: 01 July 1997
Geological Magazine (1997) 134 (4): 507-522.
Journal Article
Published: 01 June 1997
European Journal of Mineralogy (1997) 9 (3): 563-568.
Journal Article
Published: 01 January 1997
Geological Magazine (1997) 134 (1): 113-120.
Journal Article
Published: 01 September 1996
Geological Magazine (1996) 133 (5): 595-609.
Journal Article
Journal: Geology
Published: 01 August 1996
Geology (1996) 24 (8): 747-750.
... spectra record the time span over which mica formed and grew. We have modeled the argon concentrations in these micas, taking into account the thermal history of the nappe, mica growth, and diffusional loss of argon. Our results indicate that available experimental data underestimate the activation energy...
Journal Article
Published: 01 April 1996
Journal of the Geological Society (1996) 153 (2): 191-195.
Journal Article
Published: 01 March 1996
Geological Magazine (1996) 133 (2): 177-192.
Journal Article
Published: 01 October 1995
Journal of the Geological Society (1995) 152 (5): 807-818.
... © Geological Society of London 1995 1995 Geological Society of London Canary Islands stratigraphy geochronology stratovolcanoes References Abdel-Monem A. Wamms N.D. Gast P.W. Potassium-argon ages, volcanic stratigraphy and geomagnetic polarity history of the Canary Islands...
Journal Article
Published: 01 April 1995
Journal of the Geological Society (1995) 152 (2): 229-250.
..., J.K. 1993. Alford Sheet 76W. 1:50 000 series Busrewil M.T. Pankhurst R.J. Wadsworth W.J. The igneous rocks of the Boganclogh area, N.E. Scotland Scottish Journal of Geology 1973 9 165 176 Butterfield A.W. Turner G. Ancient argon in cherts Terra Cognita 1985 5...
Journal Article
Published: 01 April 1995
Journal of the Geological Society (1995) 152 (2): 297-310.
Journal Article
Published: 01 April 1995
Journal of the Geological Society (1995) 152 (2): 311-326.
... and potassium-argon studies on volcanic rocks from the Cameroon line, West Africa. PhD Thesis, University of Edinburgh. Dunlop H.M. Fitton J.G. A K-Ar and Sr-isotopic study of the volcanic rocks of the island of Principe, West Africa. Evidence for mantle heterogeneity beneath the Gulf of Guinea...