Abstract
Volcaniclastic products of Northern Sardinia (Italy) turned out to be affected by diffuse zeolitisation processes. About 130 samples, representative of the identified formations (pyroclastic flows and epiclastic deposits), were collected in order to evaluate the distribution of zeolitic phases. Clinoptilolite was the most widespread zeolite, whereas mordenite and chabazite rarely occured. A quantitative evaluation performed by the Reference Intensity Ratio (RIR) and Rietveld methods indicated that about 30% and 44% of samples from pyroclastic flows and epiclastic deposits, respectively, have a zeolite content higher than 50%.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bish D.L. and Post J.E., Quantitative mineralogical analysis using the Rietveld full-pattern fitting method, Am. Mineral. 78, 932–940 (1993).
Boles J. R., Composition, optical properties, cell dimension and thermal stability of some heulandite group zeolites, Am. Mineral. 57, 1463–1493 (1972).
Cappelletti P., Colella C., Cruciani G., de’ Gennaro M., Langella A., Oggiano G. and Pansini M, “Mineralogy and crystal chemistry of clinoptilolites from Northern Sardinia. An evaluation of their technological potentiality”, Proceedings Zeolite’ 97 — 5th Int. Conf. Occurrence, Properties and Utilization of Natural Zeolites” (Ischia, Sept. 21–29) (1997).
Cas R.A.F. and Wright J.V., Volcanic Succession — Modern and Ancient, Allen and Unwin, pp. 251–252 (1987).
Cherchi A. and Montadert L., The Oligo-Miocene rift of Sardinia and early history of the Western Mediterranean basin, Nature 298, 736–739 (1982).
Chipera S.J. and Bish D.L., Multireflection RIR and intensity normalizations for quantitative analyses: applications to feldspar and zeolites, Powder Diffraction 10(1), 47–55 (1995).
Chung F.H., Quantitative interpretation of X-ray diffraction patterns of mixtures. I. Matrix-flushing method for quantitative multicomponent analysis, J. Appl. Cryst. 7, 519–525 (1974).
Coulon C., Le Volcanisme Calco-alcalin Cenozoique de Sardaigne, Italie, Thesis, Université St. Jerome, Marseille (1977).
de’ Gennaro M., Oggiano G., Langella A. and Di Pisa A., “Technological perspectives from volcaniclastic rocks of North Sardinia”, in R. Aiello (Ed.), Proceedings of the 3rd Conv. Naz. Sci. Teen. Zeol., pp. 337–345 (1995).
de’Gennaro, M. and Langella, A., Italian zeolitized rocks of technological interest, Mineralium Deposita 31, 452–472 (1996).
de’Gennaro, M., Langella, A., Padalino G. and Palomba M., “Zeolite-bearing mineralization at monte Ossoni (Castelsardo, Northern Sardinia) and at Allai-Samugheo area (central Sardinia) as possible deposits of industrial minerals”, E. Fois and A. Gamba (Eds.), Proceedings of the 4th Conv. Naz. Sci. Teen. Zeol., pp. 57–59 (1998).
Fisher R.V., Models for pyroclastic surges and pyroclastic flows, J. Volcanol. Geotherm. Res. 6, 305–318 (1979).
Ghiara M. R., Lonis R., Petti C., Franco E., Luxoro S. and Balassone G., The zeolitization process of Tertiary orogenic ignimbrites from Sardinia (Italy): distribution and mining importance, Per. Min. 66, 211–229 (1997).
Ghiara M. R., Petti C, Franco E., Luxoro S., and Gnazzo L., “Diagenetic clinoptilolite from pyroclastic flows of northern Sardinia”, in R. Aiello (Ed.), Proceedings of the 3rd Conv. Naz. Sci. Tecn. Zeol., pp. 349–353 (1995).
Lecca L., Lonis R., Luxoro S., Melis E., Secchi F. and Brotzu P., Oligo-Miocene volcanic sequences and rifting stages in Sardinia: a review, Per. Min. 66, 7–61 (1997).
Lipman P.W. and Christiansen R.L., “Zonal features of an ash-flow in the Piapi Canyon Formation”, Southern Nevada. B74-8. U.S. Geol. Surv. Prof. Pap., 501 B (1964).
Oggiano G., Funedda A. and Pasci S., II Bacino di Chilivani-Berchidda: un esempio di struttura transtensiva. Possibili relazioni con la geodinamica Cenozoica del Mediterraneo occidentale, Boll. Soc. Geol. It. 114, 465–475 (1995).
Smith R.L. and Bailey R.A., The Bandelier Tuff: A study of ash-flow eruption cycles from zoned magma chambers, Bull. Volcanol. 29, 83–104 (1966).
Wright J.V., Smith A.L. and Self S., A working terminology of pyroclastic deposits, J. Volcanol. Geotherm. Res. 8, 315–336 (1980).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Langella, A., Cappelletti, P., Cerri, G., Bish, D.L., Gennaro, M.d. (1999). Distribution of Industrial Minerals in Sardinia (Italy): Clinoptilolite Bearing Rocks of the Logudoro Region. In: Misaelides, P., Macášek, F., Pinnavaia, T.J., Colella, C. (eds) Natural Microporous Materials in Environmental Technology. NATO Science Series, vol 362. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4499-5_16
Download citation
DOI: https://doi.org/10.1007/978-94-011-4499-5_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-5889-3
Online ISBN: 978-94-011-4499-5
eBook Packages: Springer Book Archive