Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-13T23:52:25.622Z Has data issue: false hasContentIssue false
  • English
  • Français

Contributions to the Neogene radiometric time-scale from northern Africa

Published online by Cambridge University Press:  01 May 2009

D. Vass ,
G. P. Badgasarjan  and
S. Bajanik
D. Vass
Affiliation:
Mlynská dolina 1809 40 BratislavaCzechoslovakia
G. P. Badgasarjan
Affiliation:
Barekamutyan 24375019 ErivanU.S.S.R.
S. Bajanik
Affiliation:
Mlynská dolina 1809 40 BratislavaCzechoslovakia
Get access Rights & Permissions [Opens in a new window]

Summary

Four volcanic rocks from northern Tunisia and a syntectonic granite from northeastern Algeria were dated by the K—Ar method. The stratigraphic position of the dated rocks is determined mainly by their relationship to biostratigraphically calibrated Miocene tectonism. The K—Ar age of the granite, which is younger than latest Burdigalian and older than Early Tortonian, is 16.8 m.y. (*15.8 m.y. calculated with western decay constants). Rhyodacite at 10.9 (*10.4), rhyolite at 8.8 (*8.3), basalt at 7.3 (*6.9) and adesite at 7.0 (*6.7) m.y. are all apparently younger than Lower Tortonian.

Type
Articles
Information
Geological Magazine , Volume 111 , Issue 2 , March 1974 , pp. 149 - 155
Copyright
Copyright © Cambridge University Press 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bagdasarjan, G. P., Bajanik, S. & Vass, D. (1973). Age radiometrique du volcanisme Néogène dans Ie Nord Tunisien. Notes Serv. géol. Tunis. 40, 79–93.Google Scholar
Bagdasarjan, G. P., Vass, D. & Konecný, V. 1968. Results of absolute age determinations of Neogene rocks in Eastern and Central Slovakia. Geol. Sb. geol. Karpát. 19,419–25.Google Scholar
Bandy, O. L., Ingle, J. C. Jr 1970. Neogene planktonic events and radiometric time scale, California. Spec. Pap. geol. Soc. Am. 124, 131–72.Google Scholar
Batik, P., Maamouri, M. & Salaj, J. (1973). Le Tortonien dans Ia zone des écailles. Notes Serv. géol. Tunis. 40, 115–119.Google Scholar
Berggren, W. A. 1969. Cenozoic chronostratigraphy, planktonic foraminiferal zonation, and the radiometric time-scle. Nature, Lond. 224, 1072–5.Google Scholar
Berggren, W. A. 1972. A Cenozoic time-scale—some implications for regional geology and paleobiogeography. Lethaia 5, 195–215.Google Scholar
Biely, A., Rakus, M., Robinson, P. & Salaj, K. 1972. Essai de correlation des formations Miocènes au Sud de Ia Dorsale tunisienne. Travaux de Géologie tunisienne. Notes Serv. géol. Tunis. 38, 73–92.Google Scholar
Bruijn, H. de, Sondaar, P. Y. & Zachariasse, W. J. 1971. Mammalia and Foraminifera from the Neogene of Kastellios Hill (Crete): a correlation of continental and marine biozones. Proc. K. ned. Akad. Wet. B, no. 74 (5).Google Scholar
Charlot, R., Choubert, G., Faure-Muret, A., Hottinger, L., Marcais, J. & Tisserant, D. 1967. Note au sujet de l'âge isotopique de la limite Miocène-Pliocène au Maroc. C. r. hebd. Séanc. Acad. Sci., Paris D 264, 222–4.Google Scholar
Choubert, G., Charlot, R., Faure-Muret, A., Hottinger, L., Marcais, J., Tisserant, D. & Vidal, P. 1968. Note préliminaire sur le volcanisme messinien— ‘pontien’ au Maroc. C. r. hebd. Séanc. Acad. Sci., Paris D 266, 197–9.Google Scholar
Civetta, L., Gasparini, P. & Adams, J. A. S. 1970. Geochronology and geochemical trends of volcanic rocks from Campania, S. Italy. Eclog. geol. Helv. 63, 57–68.Google Scholar
Dalrymple, G. B. & Lanphere, M. A. 1969. Potassium-argon Dating. W. H. Freeman Co., San Francisco. 258 pp.Google Scholar
Ferrara, G., Hirt, B., Marinelli, G. & Tongiorgi, E. 1961. Primi risulti sulla determinazione con il metodo del Rb-Sr dell'eta alcuni Minerali del'isola d'Elba. Boll. Soc. Geol. Italiana 80/2, 145–50.Google Scholar
Funnell, B. M. 1964. The Tertiary period. In Harland, W. B., Smith, A. G. & Wilcock, B. (Eds), The Phanerozoic time-scale. Q. Jl geol. Soc. Land., Supplementyes, vol. 120, 458 pp.Google Scholar
Glaçon, G. & Rouvier, H. 1967. Précisions lithologiques et stratigraphiques sur le ‘Numidien’ de Kroumirie (Tunisie septentrionale). Bull. Soc. géol. Fr., sér. 7, 9, 410–417.Google Scholar
Glaçon, G. & Rouvier, H. 1972. Age des mouvements tectoniques majeurs en Tunisie septentrionale. C. r. hebd. Séanc. Acad. Sci., Paris D 274, 1257–60.Google Scholar
Gottis, Ch. 1954. Presence de Miocène marin dans le Nefza (Tunisie septentrionale). C. r. hebd. Séanc. Acad. Sci., Paris D, 239, 181–3.Google Scholar
Ikebe, N., Chiji, M. & Nakaseko, K. 1969. Problems on the terminal Miocene in Japan. Proceedings of the IV Session C.M.N.S., Bologna 1967. G. Geol. 35 (4), 12–25.Google Scholar
Ikebe, N., Takayanagi, Y., Chiji, M. & Chinzei, K. 1972. Neogene biostratigraphy and radiometric time-scale of Japan — an attempt at intercontinental correlation. Pacif. Geol. 4, 39–78.Google Scholar
Page, R. W. & McDougall, I. 1970. Potassium—argon dating of the Tertiary f1–2 stage in New Guinea and its bearing on the geological time-scale. Am. J. Sci. 269, 321–42.Google Scholar
Rittman, A. 1948. Origine e differenziazione del magma ischitano. Schweiz. miner. petrogr. Mitt. 28, 643–98.Google Scholar
Selli, R. 1970. Report on the absolute age. Proceedings of the IV Session C.M.N.S., Bologna 1967. G. Geol. 35 (1), 51–9.Google Scholar
Van Couvering, J. A. 1972. Radiometric calibration of the European Neogene, pp. 247–71. In Bishop, W. W. & Miller, J. A. (Eds), Calibration of Hominoid Evolution. Scottish Academic Press.Google Scholar
Van Couvering, J. A. & Miller, J. A. 1971. Late Miocene marine and non-marine time scale in Europe. Nature, Lond. 230, 559–64.Google Scholar
Vass, D. 1972. Le molasse nord-tunisienne. (Manuscript, Service géologique, Tunis.)Google Scholar
Vass, D., Bagdasarjan, G. P. & Konecný, V. 1970. Absolútne veky niektorých stupnov miocénu Západncých Karpát. Bratislava. Geol. Pr. 51, 71–97.Google Scholar
Vass, D., Bagdasarjan, G. P. & Konecý, V. 1971. Determination of the absolute age of the West Carpathian Miocene. Földt. Közl. 101, 321–7.Google Scholar
Vass, D. & Bismuth, H. (1973). Compte rendu du Ve Congrès du Comité de Stratigraphie du Néogène mediterranéen (Lyon, Sept. 1971). Notes Serv. géol. Tunis. 40 (in the Press).Google Scholar