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Discoasters of the Blue Clay (Middle Miocene) of Malta and Gozo

Published online by Cambridge University Press:  01 May 2009

Minoo Hojjatzadeh
Minoo Hojjatzadeh
Affiliation:
Postgraduate Unit of Micropalaeontology, University College, Gower Street, London WC1E 6BT
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Summary

Twenty-three species of the Family Discoasteraceae Vekshina, 1959 recovered from 18 samples of the Blue Clay at Fort Chambray, Gozo, and 31 samples from Fomm-Ir-Rih Bay, Malta, have been studied under light and scanning electron microscopes. Fourteen Middle Miocene species are reviewed, their stratigraphical ranges and importance as marker species discussed. Nine species are described as new. On the basis of the discoaster species present, a Middle Miocene age (NN.6 Discoaster exilis Zone – NN.7 Discoaster kugleri Zone) for the Blue Clay in Malta and Gozo is suggested.

Type
Articles
Information
Geological Magazine , Volume 115 , Issue 1 , January 1978 , pp. 1 - 19
Copyright
Copyright © Cambridge University Press 1978

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References

Bramlette, M. N. & Riedel, W. R. 1954.Stratigraphic value of Discoasters and some other microfossils related to Recent coccolithophores. J. Palaeont. 28 (4), 385–403.Google Scholar
Bramlette, M. N. & Wilcoxon, J. A. 1967. Middle Tertiary calcareous nannoplankton of the Cipero section, Trinidad, W.I. Tulane Stud. Geol. 5, 93–131.Google Scholar
Bukry, D. 1973. Low-latitude coccolith biostratigraphic zonation. Initial Reps of Deep Sea Drilling Project 15, 685–703.Google Scholar
Felix, R. 1973. Oligo-Miocene stratigraphy of Malta and Gozo. Meded. LandbHoogesch. Wageningen 73.Google Scholar
Gartner, S. Jr 1967. Calcareous nannofossils from the Neogene of Trinidad, Jamaica and Gulf of Mexico. Palaeont. Contr. Univ. Kans.paper 29, 1–7.Google Scholar
Gartner, S. Jr 1969. Correlation of Neogene planktonic foraminifer and calcareous nannofossil zones. Trans. Gulf-Cst Ass. geol. Socs 19, 585–99.Google Scholar
Hay, W. W. 1965.Calcareous nannofossils. In Handbook of Paleontological Techniques (ed. B., Kummel and D., Raup), pp. 3–7. San Francisco, London: Freeman.Google Scholar
Hay, W. W. & Mohler, H. P. 1967. Calcareous nannoplankton zonation of the Cenozoic of the Gulf Coast and Caribbean-Antillean Area and Transoceanic Correlation. Trans. Gulf-Cst Ass. geol. Socs 17, 428–80.Google Scholar
House, M. R., Dunham, K. C. & Wigglesworth, J. C. 1961. Geology and structure of the Maltese Islands. Malta, Background for Development 25–33.Google Scholar
Martini, E. 1971. Standard Tertiary and Quaternary Calcareous nannoplankton zonation. Proc. Il Planktonic Conf. Roma (1970), 739–77.Google Scholar
Martini, E. & Bramlette, M. N. 1963. Calcareous nannoplankton from the Experimental Mohole Drilling. J. Paleont. 37, 845–56.Google Scholar
Martini, E. & Worsley, T. 1970. Standard Neogene calcareous nannoplankton zonation. Nature, Lond. 225, 289–90.Google Scholar
Martini, E. & Worsley, T. 1971. Tertiary calcareous nannoplankton from the Western equatorial Pacific. Initial Reps Deep Sea Drilling Project 7, 1471–1507.Google Scholar
Tan Sin, Hok, 1927. Discoasteridae incertae sedis. Proc. Sect, Sci. K. ned. Akad. Wet. Amsterdam 30,411–19.Google Scholar
Vekshina, V. N. 1959. Kokkolitoforidy maastrikhtskikh otlozhenii Zapadno-Sibirskoi nizmen nosti (Coccolithophoridae of the Maastrichtian deposits of the West Siberian Lowland). Trudy Sib. naachnoissled. Inst. Geol. Geofiz. miner. Syr. 2, 56–81.Google Scholar