Ritrovamento di scapolite in un'area di contatto dei M.ti Monzoni (Toal della Traverselliti). II. Spettroscopia I.R. e studio roentgenografico

Morandi, Noris ; Nannetti, M. Carla ; Pirani, Rossana

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti, Tome 66 (1979), p. 423-428 / Harvested from Biblioteca Digitale Italiana di Matematica

Résumé

Scapolite occurs as large idiomorphic crystals forming pseudoradiating aggregates in veins in the monzonitic rocks. It is associated with zeolites (analcime, natrolite and scolecite), calcite, ferroan chlorites, K-feldspar, sphene and apatite. The samples were examined by x-ray diffraction and I.R. absorption spectroscopy. The results define the mineral as a $Me_{36}$ scapolite term, containing $C0_{3}$ and OH as essential constituents, Cl and $S0_{4}$ as trace. The relationships between physical data and composition are quite satisfactory.

Détail

Publié le : 1979-05-01

Bibliographie

Barth, T.F.W. (1924) - On contact minerals from Precambrian Limestones in Southern Norway, «Norsk. Geol. Tidsskr.», 8, 93-114.

Barth, T.F.W. (1927) - Über Kali-und Wasser haltige Skapolithe, «Zbl. Min. Geol. Palaont abt. A.», 82-88.

Barth, T.F.W. (1952) - Theoretical petrology. New York, John Wiley e Sons, Inc.

Borgström, L.M. (1915) - Die chemische zusammensetzung der Skapolithe, «Zeitz. Krist. Miner.», 54, 238-260,

Burley, B.J., Freeman, E.B. and Shaw, D.M. (1961) - Studies on scapolite, «Canad. Miner.», 6, 670-679.

Deer, W.A., Howie, R.A. and Zussman, (196 ) - Rock forming Minerals. «Longmans», 321-337.

Donnay, G. and Allmann, R. (1970) - How to recognize $O^{2-}$, $(OH)^{-}$ and $H_{2}O$ in crystal structures determined by X-rays, «Amer. Miner.», 55, 1003-1015.

Donnay, G., Shaw, C.F., Butler, J.S. and O'Neil, J.R. (1978) - The presence of HCl in scapolites. «Canad. Miner.», 16, 341-345.

Ellis, D.E. (1978) - Stability and phase equilibria of chloride and carbonate bearing scapolites at 750°C and 4000 bar. «Geochim. Cosmochim. Acta», 42, 1271-1281.

Evans, B.W., Shaw, D.M. and Haughton, D.R. (1969) - Scapolite stoichiometry. «Contr. Min. Petr.», 24, 293-305.

Goldschmidt, V.M. (1911) - Die kontakt-metamorphose im Kristianiagebiet, «Skr. Vidensk. Selsk. Christ. I-Mat.-nat. Kl.», No 1, 1, 482, citato da Shaw (1960).

Goddsmith, J.R. and Newton, R.C. (1977) - Scapolite-plagioclase stability relations at high pressures and temperatures in the system $NaAlSi_{3}O_{8}---CaAl_{2}Si_{2}O_{8}---CaCO_{3}---CaSO_{4}$, «Amer. Miner.», 62, 1063-1082.

Hietanen, A. (1967) - Scapolite in the Belt Series in the St. Joe-Clearwater region. Idaho, «Geol. Soc. Am. Spec. Paper.», 86, 54.

Himmelbauer, A. (1910) - Zur Kenntnis der Skapolithgruppe, «S.B. Akad. Wiss. Vien, Mat. nat. Kl.», 119, 115-79, citato da Shaw (1960).

Hintze, C. (1889-1897) - Handbuck der Mineralogie, Vol. II, Verlag von Veit e comp. Leipzig.

Ingamells, C.O. and Gittins, J. (1967) - The stoichiometry of scapolite, «Canad Miner.», 9, 214-236.

Liebener, L. and Vorhauser, J. (1852) - Die Mineralien Tirols, Innsbruch.

Lin, S.B. and Burley, B.J. (1973) - On the weak reflections violating body-centred symmetry in scapolite, «Tscherm. Min. Petr. Mitt.», 20, 28-44.

Lin, S.B. and Burley, B.J. (1974) - The crystal structure of an intermediate scapolite-wernerite, «Tscher. Min. Petr. Mitt.», 21, 196-215.

Lin, S.B. and Burley, B.J. (1975) - The crystal structure of an intermediate Scapolite-Wernerite, «Acta Cryst.», B, 31, 1806-1814.

Millhollen G.L.(1974) - Synthesis of Scapolite under magmatic conditions, «Amer.Miner.», 59, 618-620.

Morandi, N., Nannetti, M.C. and Pirani, R. (1979) - Ritrovamento di scapolite in un'area di contatto dei M.ti Monzoni (Toal della Traversellite). I. Chimismo e studio ottico. «Rend. Acc. Naz. Lincei, Cl. Sc. Fis. Mat. Nat.», Serie 8a vol. LXIV.

Newton, R.C., Goldsmith, J.R. (1975) - Stability of the scapolite meionite ($3CaAl_{2}Si_{2}O_{8}---CaCO_{3}$) at high pressures and storage of $CO_{2}$ in the deep crust, «Cont. Miner. Petrol.», 49, 49-62.

Orville, P.M. (1975) - Stability of scapolite in the system Ab-An-NaCl-$CaCO_{3}$ at 4 Kbar and 750°C. «Geochim. Cosmochim. Acta», 39, 1091-1105.

Papike, J.J. and Stephenson, N.C. (1966) - The crystal structure of mizzonite, a calcium and carbonate-rich scapolite. «Amer. Miner.», 51, 1014-1027.

Papike, J.J. and Zoltai, T. (1965) - The crystal structure of a marialite scapolite, «Amer. Miner.», 50, 641-655.

Russel, J.D. (1974) - The infrared spectra of minerals. «Mineralogical Society Monograph», 4, ed. by V.C. Farmer. London.

Schwarcz, M.P., Speelman, E.L. (1965) - Determination of sulfur and carbon coordination in scapolite by infrared absorption spectrophotometry. «Amer. Miner.», 50, 656-666.

Serdyuchenko, D.P. (1955) - Potash scapolites from south Yakutia, «Problems of geology of Asia (Acad. Sci. U.R.S.S.)», 2, 742-56 - citato da Shaw (1960).

Shaw, D.M. (1960 a) - The geochemistry of scapolite: Pt. I., Previous work and general mineralogy. «Journ. Petrol.», 1, 218-261.

Shaw, D.M. (1960b) - The geochemistry of scapolite: Pt. II. Trace elements petrology and general geochemistry. «Journ. Petrol.», 1, 261-285.

Shaw, D.M., Moxham, R.L., Filby, R.M. and Lapkowsky, W.W. (1963) - The petrology and geochemistry of some Grenville skarns. Pt. I., Geology and petrography. «Canad. Miner.», 7, 420-442.

Shaw, D.M., Moxham, R.L., Filby, R.M. and Lapkowsky, W.W. (1963) - The petrology and geochemistry of some Grenville skarns. Pt. II., Geochemistry. «Canad. Miner.», 7, 578-616.

Shay, K. (1975) - Mineralogical zoning in a scapolite-bearing skarn body in San Gorgonio Mountaine, California. «Amer. Miner.», 60, 785-797.

Sundius, N. (1919) - Beiträge zur Kenntnis der Skapolithe. «Bull. Geol. Instn. Univ. Upsala», 16, 96-107.

Ulbrich, H.H. (1973) - Crystallographic data and refractive indices of scapolite. «Amer. Miner.», 58, 81-92.

Wehrenberg, J.P. (1971) - The infrared absorption spectra of scapolite. «Amer. Miner.», 56, 1639-1654.

Winchell, A.N. (1924) - The properties of scapolite. «Amer. Miner.», 9, 108-12.

Wright, T.L. and Stewart, D.B. (1968) - X-ray and optical study of alkali feldspar. I. Determination of composition and structural state from refined unit-cell parameters and 2 V., «Amer. Miner.», 53, 38-87.