Hostname: page-component-77c89778f8-vsgnj Total loading time: 0 Render date: 2024-07-17T05:00:48.500Z Has data issue: false hasContentIssue false
  • English
  • Français

Anorthoclase megacrysts: physical conditions of formation

Published online by Cambridge University Press:  05 July 2018

Dov Bahat
Dov Bahat*
Affiliation:
Department of Geology and Mineralogy, Ben Gurion University of the Negev Beer Sheva, Israel
Get access Rights & Permissions [Opens in a new window]

Summary

Previous interpretations relating to precipitation of anorthoclase megacrysts from alkaline basaltic magmas under high-pressure conditions are contradicted. It is proposed that these feldspars were crystallized above the solvus from hydrous melts at shallow depths, under low-pressure equilibrium conditions. These melts had been considerably enriched with volatiles of sodium, strontium, and barium, and to some extent also of rubidium.

Type
Research Article
Information
Mineralogical Magazine , Volume 43 , Issue 326 , June 1979 , pp. 287 - 291
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1979

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

Albarede, (F.) and Bottinga, (Y.), 1972. Geochim. Cosmochim. Acta. 36, 141-56.10.1016/0016-7037(72)90003-8CrossRefGoogle Scholar
Aoki, (K. I.), 1970. Contrib. Mineral. Petrol. 25, 284-8.10.1007/BF00399288CrossRefGoogle Scholar
Bacon, (C. R.) and Carmichael, (I. S. E.), 1973. Ibid. 41, 1-22.Google Scholar
Bahat, (D.), 1968. Can. Mineral. 9, 531-8.Google Scholar
Bahat, (D.) 1970. J. Geol. Soc. Aust. 17, 93-102.10.1080/00167617008728727CrossRefGoogle Scholar
Bahat, (D.) 1971a. Proc. R. Soc. Victoria. 84, 93-8.Google Scholar
Bahat, (D.) 1971b. J. Geol. Soc. Aust. 18, 33-40.10.1080/00167617108728741CrossRefGoogle Scholar
Binns, (R. A.), 1969. Am. J. Sci. 267-A, 33-49.Google Scholar
Binns, (R. A.) Duggan, (M. B.) and Wilkinson, (J. F. G.), 1970. Ibid. 269, 132-68.Google Scholar
Bowen, (N. L.) and Tuttle, (O. F.), 1950. J. Geol. 58, 489-511.CrossRefGoogle Scholar
Branch, (C. D.), 1966. Aust. Bur. Mineral. Res. Geol. Bull. 76.Google Scholar
Carmichael, (I. S. E.), 1960. Mineral. Mag. 32, 587-608.Google Scholar
Carmichael, (I. S. E.) 1965. Ibid. 34, 107-25.Google Scholar
Carmichael, (I. S. E.) and Mackenzie, (W. S.), 1964. Ibid. 33, 949-62.Google Scholar
Chapman, (N. A.), 1976. J. Petrol. 17, 472-98.CrossRefGoogle Scholar
Chapman, (N. A.) and Powell, (R.), 1976. Contrib. Mineral. Petrol. 58, 29-35.10.1007/BF00384742CrossRefGoogle Scholar
Dasch, (E. J.), 1969. J. Geophys. Res. 74(2), 560-5.10.1029/JB074i002p00560CrossRefGoogle Scholar
Dawson, (J. B.), 1971. Earth Sci. Rev. 1, 187-214.10.1016/0012-8252(71)90120-6CrossRefGoogle Scholar
Eaton, (J. P.) and Murata, (K. J.), 1960. Science, 132, 925-38.10.1126/science.132.3432.925CrossRefGoogle Scholar
Edwards, (A. B.), 1935. Proc. R. Soc. Vict. 48, 13-26.Google Scholar
Ellis, (D. J.), 1976. Contrib. Mineral. Petrol. 58, 149-80.10.1007/BF00382183CrossRefGoogle Scholar
Frisch, (T.) and Wright, (J. B.), 1971. Neues Jahrb. Mineral. Monatsh. 289-304.Google Scholar
Green, (T. H.) and Ringwood, (A. E.), 1967. Earth Planet. Sci. Lett. 3, 481-9.10.1016/0012-821X(67)90083-0CrossRefGoogle Scholar
Griffin, (W. L.) and Mnrthy, (V. R.), 1969. Geochim. Cosmochim. Acta, 33 1389-414.10.1016/0016-7037(69)90181-1CrossRefGoogle Scholar
Gutmann, (J. T.), 1974. Am. Mineral. 59, 666-72.Google Scholar
Gutmann, (J. T.) 1977. Am. J. Sci. 277, 833-61.10.2475/ajs.277.7.833CrossRefGoogle Scholar
Hamilton, (W. B.), 1965. US Geol. Surv. Prof. Pap. 504-C, C1-C37.Google Scholar
Heier, (K. S.), 1962. In Christie, (O. H. J.) (ed.), Norsk Geol. Tidss., feldspar volume, 415-54.Google Scholar
Heier, (K. S.) and Taylor, (S. R.), 1964. Norsk. Geol. Tids. 44, 197-203.Google Scholar
Hoffer, (J. M.) and Hoffer, (R. L.), 1973. Geol. Soc. Am. Bull. 84, 2139-42.10.1130/0016-7606(1973)84<2139:CASSOF>2.0.CO;22.0.CO;2>CrossRefGoogle Scholar
Irving, (A. J.), 1974. Ibid. 85, 1503-14.Google Scholar
Irving, (A. J.) 1977. Trans. Am. Geophys. Union. 58, 526 (abstract).Google Scholar
Kay, (R. W.) and Gast, (P. W.), 1973. J. Geol. 81, 653-82.Google Scholar
Kuno, (H.), 1964. In Subramanian, (H. P.) and Balakrishna, (S.) (eds.). Advancing frontiers in geology and geo-physics, Hyderabad, India. Indian Geophys. Union, 205-20.Google Scholar
Kutolin, (V. A.) and Frolova, (V. M.), 1970. Contrib. Mineral. Petrol. 29, 163-79.10.1007/BF00392023CrossRefGoogle Scholar
Laughlin, (A. W.), Manzer, Jr.(G. K.), and Cardeu, (J. R.), 1974. Geol. Soc. Am. Bull. 85, 413-16.10.1130/0016-7606(1974)85<413:FMIAB>2.0.CO;22.0.CO;2>CrossRefGoogle Scholar
Mackenzie, (W. S.) and Smith, (J. V.), 1956. Am. Mineral. 41, 405-27.Google Scholar
Mitchell, (R. S.) and Giardini, (A. A.), 1977. Ibid. 62, 756-62.Google Scholar
Morse, (S. A.), 1968. Carnegie Inst. Washington Yearbook, 67, 112-120.Google Scholar
Morse, (S. A.) 1970. J. Petrol. 11, 221-51.CrossRefGoogle Scholar
Orville, (P. M.), 1963. Am. J. Sci. 261, 201-37.10.2475/ajs.261.3.201CrossRefGoogle Scholar
Peterson, (R.) and Francis, (O.), 1977. Am. Mineral. 62, 1049-51.Google Scholar
Philpotts, (J. A.) and Schnetzler, (C. C.), 1970. Geochim. Cosmochim. Acta. 34, 307-22.10.1016/0016-7037(70)90108-0CrossRefGoogle Scholar
Rahman, (S.) and Mackenzie, (W.S.), 1969. Am. J. Sci. 267A, 391-406.Google Scholar
Rhodes, (R. C.), 1976. N. Mexico Geol. Soc. Spec. Publ. 5, 103-12.Google Scholar
Smith, (J. V.) and Mackenzie, (W. S.) 1958. Am. Mineral. 43, 872-89.Google Scholar
Smith, (P.) and Parsons, (I.), 1974. Mineral. Mag. 39, 747-67.10.1180/minmag.1974.039.307.03CrossRefGoogle Scholar
Smyth, (C. H.), 1927. Proc. Am. Phil. Soc. 537-80.Google Scholar
Stewart, (D. B.) and Roseboom, Jr.(E. H.), 1962. J. Petrol. 3 [2], 280-315.10.1093/petrology/3.3.280CrossRefGoogle Scholar
Stuckless, (J. S.) and Irving, (A. J.), 1976. Geochim. Cosmochim. Acta. 40, 209-13.10.1016/0016-7037(76)90178-2CrossRefGoogle Scholar
Vitaliano, (C. J.) and Harvey, (R. D.), 1965. Am. Mineral. 50, 73-84.Google Scholar
Wilkinson, (J. F. G.), 1962. J. Petrol. 3 (2), 192-214.10.1093/petrology/3.2.192CrossRefGoogle Scholar
Wright, (J. B.), 1968. Mineral. Mag. 36, 1024-31.Google Scholar
Yoder, (H. S.), Stewart, (D. B.), and Smith, (J. R.), 1957. Carnegie Inst. Washington Yearbook, 56 206-14.Google Scholar