The Kamafugites of Uganda: A mineralogical and geochemical comparison with their Italian and Brazilian analogues

Periodico di Mineralogia

Volumn 72, Issue SPEC. ISSUE 1, 2003, Pages 51-77

  Tappe, Sebastian ^a   Foley, S F ^a   Pearson, D G ^b  

^a UNIVERSITY OF GREIFSWALD   (Germany)

^b DURHAM UNIVERSITY   (United Kingdom)

Author keywords

Geochemistry; Kalsilite; Melilite; Rift magnwtism; Toro Ankole; Ultrapotassic rocks

Indexed keywords

EID: 4344713698     PISSN: 03698963     EISSN: 22391002     Source Type: Journal    
DOI: None     Document Type: Article

References (92)

1. AOKI K. and SHIBA I. (1973) - Pyroxenes from lherzolite inclusions of Itin omegata. Japan: Lithos, 6, 45-51.
2. ARAUJO A.L.N., CARLSON R.W., GASPAR J.C. and BRZZR L.A (2001) - Petrology of kamafugites and kimberlites fr om the Alto Paranafba Alkaline Province. Minas Gerais, Brazil: Contrib. Mineral. Petrol., 142, 163-177.
3. ARIMA M. and EDGAR AD. (1983) - High pressure exerimental studies on a katungite and their bearing on the genesis of some potassium- rich magmas of the west branch of the African rift. J. Petrol., 24, 166-187.
4. AURISICCHIO C. and FEDERICO M. (1985) -Nepheline-kalsilite microperthites in ej ecta fr om the Alban Hills (Italy). Bull. Geol. Soc. Finland, 57, 5-12.
5. BAILEY D. K. and COLLIER J. D. (2000) -Carbonatite-melilitite association in the Italian collision zone and the Ugandan rifted craton: signifi cant common f a ctors. Mineral. Mag., 64, 675-682.
6. BARKER D.S. and NIXON P.H. (1989) - High-Ca, low-alkali carbonatite volcanism at Fort Portal, Uganda. Contrib. Mineral. Petrol., 103, 166-177.
7. BEARD A.D., DOWNES H., HEGNER E., SABLUKOV S.M., VETRIN V.R. and BALOGH K. (1998) -Min e ra logy and geochemistry of D e vo n ian ultramaf i c minor intrusions of the southern Kola Peninsula, Russia: implications for the petrogenesis of kimberlites and melilitites. Contrib. Mineral. Petrol., 130, 288-303.
8. BECCALUVA L., DI GIROLAMO P. and SERRI G. (1991) - PetTogenesis and tectonic setting of the Roman volcanic province, Italy. Lithos, 26, 191-221.
9. BELL K. and POWELL J.L. (1969) - Strontium isotopic studies of alkalic rocks: The potassium-rich lavas of the Birunga and Toro-Ankole regions, East and Central Equatorial Africa. J. Petrol., 10, 536-572.
10. BOVEN A., PASTEELS P., PUNZALAN L.E., Y AMBA T.K. and MUSISI J.H. (1998) - Quaterary pe1potassic magmatism in Uganda (Toro-Ankole Volcanic Province): age assessment and sigmficance for magmatic evolution along the East African R(t. J. Afr. Earth Sci., 26, 463-476.
11. CARLSON R.W., ESPERANCA S. and SVISERO D.P. (1996) - Chemical and Os isotopic study of Cretaceous potassic rocks jimn Souther Brazil. Contrib. Mineral. Petrol., 125, 393-405.
12. CASTORINA F., STOPPA F., CUNDARI A. and BARBIERI M. (2000) - An enriched mantle source for Italy's melilitite-carbonatite association as inferred by its Nd-Sr isotope signature. Mineral. Mag., 64, 625-639.
13. CHAKHMOURADIAN A.R. and MITCHELL R.H. (2000) - Occurrence, alteration patterns and compositional variation of perovskite in kimberlites. Can. Mineral., 38, 975-994.
14. CHAUVEL C, HOFMANN A.W. and VIDAL P. (1992) - HIMU-EM: The French Polynesian connection. Earth Planet. Sci. Lett., 110, 99-119.
15. CHAZOT G., MENZIES M.A. and HARTE B. (1996) -Determination of partition coeficients between apatite, clinopyroxene, amphibole, and melt in natural spine! lherzolites from Yemen: implications for wet melting of the lithospheric mantle. Geochim. Cosmochim. Acta, 60, 423-437.
16. COMBE A.D. and HOUES A. (1945) - The kalsilite-bearing lavas of Kabirenge and Lyakauli, SouthWest Uganda. Trans. Roy. Soc. Edinburgh, 61, 359-379.
17. CONTICELLI S. and PECCERILLO A. (1992) -Petrology and geochemistry of potassic and ultrapotassic volcanism in central Italy: petrogenesis and inferences on the evolution of the mantle sources. Lithos, 28, 221-240.
18. CUNDARI A. (1980) - Role of subduction in the genesis of leucite-bearing rocks: facts 01 fashion? Contrib. Mineral. Petrol., 73, 432-434.
19. CUNDARI A. and FERGUSON A.K. (1991) -Petrogenetic relationships between melilitite and lamproite in the Roman comagmatic region: the lavas of San Venanzo and Cupaello. Contrib. Mineral. Petrol., 107, 343-357.
20. DANNI J.C.M. and GASPAR J.C. (1994) - Quimica do katungito de Amorinopolis, Goias: contribuicao ao estudu do magmatismo kamafugitico. Geochim. Brasil, 8, 119-134.
21. DAVIES G.R. and LLOYD F.E. (1989) - Pb-Sr-Nd isotope and trace element data bearing on the origin of the potassic subcontinental lithosphere beneath south-west Uganda, in Ross, J., ed., Kimberlites and Related Rocks, Volume 2: Geol. Soc. Australia Spec. Publ. 14: Victoria, Blackwell, 784-794.
22. DI BATTISTINI G., MONTANINI A., VERNIA L., VENTURELLI G. and TONARINI S. (2001) -Petrology of melilite-bearing rocks from the Montefiascone Volcanic Complex (Roman Magmatic Province): new insights into the ultrapotassic volcanism of Central Italy. Lithos, 59, 1-24.
23. DUNWORTH E.A. and WILSON M. (1998) - Olivine Melilitites of the SW German Tertiary Volcanic Province: Mineralogy and Petrogenesis. J. Petrol., 39' 1805-1836.
24. EBINGER C.J. (1989) - Tectonic development of the wester branch of the East Ajrican rift system. Geol. Soc. Am. Bull., 101, 885-903.
25. EDGAR A.D. (1980) - Role of subduction in the genesis of leucite-bearing rocks: discussion. Contrib. Mineral. Petrol., 73, 429-431.
26. - (1991) - Source Regions for Ultrapotassic Mafic-Ultramafic Magmatism in the Southwest Uganda Region of the African R1jt: Implications from Experimental Studies, in Kampunzu, A.B., and Lubala, R.T., eds., Magmatism in Extensional Structural Settings: the Phanerozoic African Plate: Berlin, Springer, 73-84.
27. EDGAR A.D. and ARIMA M. (1981) - Geochemistry of three potasium-rich ultrabasic lavas from the west branch of the African rift: inferences on their geneses. N. Jb. Miner. Mh., v. Jg.1981, 539-552.
28. EDGAR A.D., CONDLIFFE E., BARNETT R.L. and SHIRRAN R.J. (1980) - An experimental study of an olivine ugandite magma and mechanisms for the formation of its K-enriched derivatives. J. Petrol., 21, 475-497.
29. EDGAR A.D., GREEN D.H. and HIBBERSON W.O. (1976) - Experimental petrology of a highly potassic magma. J. Petrol., 17, 339-356.
30. FEDERICO M. and PECCERILLO A. (2002) - Mineral chemistry and petrogenesis of granular ejecta from the Alban Hills volcano (Central Italy). Mineral. Petrol., 74, 223-252.
31. FEDERICO M., PECCERILLO A., BARBIERI M. and WU T.W. (1994) - Mineralogical and geochemical study on granular xenoliths front the Alban Hills volcano (central Italy): bearing on evolutionary processes in potassic magma chambers. Contrib. Mineral. Petrol., 1 15, 384-401.
32. FOLEY S.F. (1985) - The oxidation state of lamproitic magmas. Tschermaks Min. Petr. Mitt., 34, 217-238.
33. -, (1992) - Vein-plus-wall-rock melting mechanism in the lithosphere and the origin of potassic alkaline magmas. Lithos, 28, 435-453.
34. FOLEY S.F., ANDRONIKOV A.V. and MELZER S. (2002) - Petrology of ultramafic lamprophyres from the Beaver Lake area of Easter Antarctica a n d the i r rela tion to the breakup of Gondwanaland. Mineral. Petrol., 74, 361-384.
35. FOLEY S.F., VENTURELLI G., GREEN D. H. and TOSCANI L. (1987) - The Ultrapotassic Rocks: Characteristics, Classification, and Constraints f o r Petrogenetic models. Earth-Sci. Rev., 24, 81-134.
36. FORBES W.C. and FLOWER M.F.J. (1974) - Phase relations of titan-phlogop ite K2Mg4TiAl2Si6020(0Hh a refractory phase in the upper mantle?. Earth Planet. Sci. Lett., 22, 60-66.
37. FURMAN T. (1995) - Melting of metasomatized subcontinental lithosphere: undersaturated mafic lavas fr om Rungwe, Tanzania. Contrib. Mineral. Petrol., 122, 97-115.
38. FURMAN T. and GRAHAM D. (1999) - Erosion of lithospheric mantle beneath the East A f rican Rif t system: geochemical evidence fr om the Kivu volcanic province. Lithos, 48, 237-262.
39. GALLO F., GIAMMETTI F., VENTURELLI G. and VERNIA L. (1984) - The kamafugitic rocks of San Venanzo and Cuppaello, Central Italy. N. Jb. Miner. Mh., v. Jg. 1984, 198-210.
40. GHIORSO M.S. and SACK R.O. (1995) - Chemical mass transf e r in magmatic processes IV. A revised and interally consistent thermodynamic model for the interpolation and extrapolation of liquid-solid equilibria in magmatic systems at elevated temperatures and pressures. Contrib. Mineral. Petrol., 119, 197-212.
41. GIBSON S.A., THOMPSON R.N., LEONARDOS O.H., DICKIN A.P. and MITCHELL J.G. (1995) - The late Cretaceous impact of the Trindada mantle plume: evidence fr om large-volume, m afic, potassic magmatism in SE Brazil. J. Petrol., 36, 189-229.
42. GIBSON S.A., THOMPSON R.N., WESKA R., DICKIN A.P. and LEONARDOS O.H. (1997) - Late Cretaceous rift-related upwelling and melting of the Trindade starting mantle plume head beneath western Brazil. Contrib. Mineral. Petrol., 126, 303-314.
43. HOLM P.M. and MUNKSGAARD N.C. (1982) -Evidence for mantle metasomatism: an oxgen and strontium isotope study of the Vulsinian District, central Italy. Earth Planet. Sci. Lett., 60, 376-388.
44. HOLMES A. (1950) - Petrogenesis of katungite and its associates. Am. Mineral., 35, 772-792.
45. -, (1952) - The Potash Ankaratrite-Melaleucitite Lavas of Nabugando and Mbuga Craters, SouthWest Uganda. Trans. Edin. Geol. Soc., 15, 187-213.
46. HOLMES A. and HARWOOD H.F. (1932) - Petrology of the volcanic fields east and south - east of Ruwenzori, Uganda. Quart. J. Geol. Soc. London, 88, 370-439.
47. IVANIKOV V.V., RUKHLOV A.S. and BELL K. (1998) - Magmatic Evolution of the Melilitite-Carbonatite-Nephelinite Dyke Series of the Turiy Peninsula (Kandalaksha Bay, Wh ite Sea, Russia). J. Petrol., 39, 2043-2059.
48. LAUGHLIN A.W., CHARLES R.W. and ALDRICH M.J. Jr. (1989) - Heteromorphism and crystallization paths of katungites, Navajo volcanic fi eld, Arizona, USA, in Ross, J., ed., Kimberlites and Related Rocks, Volume 1 : Geol. Soc. Australia Spec. Publ. 14: Victoria, Blackwell, 582-591.
49. LAVECCHIA G. and BONCIO P. (2000) - Tectonic setting of the carbonatite-melilitite association of Italy. Mineral. Mag., 64, 583-592.
50. LAVECCHIA G. and STOPPA F. (1996) - Th e tectonic signif i cance of Italian magmatism: an alterative view to the popular interpretation. Terra Nova, 8, 435-446.
51. LE MAITRE R.W. (2002) - Igneous Rocks: A Classification and Glossary of Te rms: Recommendations of the Interational Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks: Cambridge. Cambridge University Press, pp. 236.
52. LLOYD F.E. (1985) - Experimental melting and crstallisation of glassy olivine melilitites. Contrib. Mineral. Petrol., 90, 236-243.
53. LLOYD F.E., ARIMA M. and EDGAR A.D. (1985) -Partial melting of a phlogopite-clinopyroxenite nodule from south-west Uganda: an experimental study bearing on the origin of h ighly potassic continental rift volcanics. Contrib. Mineral. Petrol., 91, 321 -329.
54. LLOYD F.E. and BAILEY D.K. (1975) - Light element metasomatism of the continental mantle: the evidence and consequences. Phys. Chem. Earth, 9, 389-416.
55. LLOYD F.E., EDGAR A.D. and RAGNARSDOTTIR K.V. (1996) - LREE distribution in perovskite, apatite and titanite fr om South West Ugandan xenoliths and kamafugite lavas. Mineral. Petrol., 57, 205-228.
56. LLOYD F.E., HUNTINGDON A.T., DAVIES G.R. and NIXON P.H. (1991) - Phanerozoic Volcanism of Southwest Uganda: A case for regional K and LILE enrichment of the Lithosphere beneath a domed a nf rited Continental Plate, in Kampunzu, A. B., and Lubala, R.T., eds., Magmatism in Extensional Structural Settings: the Phanerozoic African Plate: Berlin, Springer, 23-72.
57. LUTH W.C. (1967) - Studies in the system KlSi04-Mg2Si04-SiOrH20: 1. Infe rred phase relations and petrologic applications. J. Petrol., 8, 372-416.
58. MITCHELL R.H. and BERGMAN S.C. (1991) -Petrology of Lamproites: New York. Plenum Press, 447 pp.
59. O'REILLY S.Y. and GRIFFIN W.L. (2000) - Apatite in the mantle: implications for metasomatic processes and h igh heat p roduction in Phanerozoic mantle. Lithos, 53, 217-232.
60. PASTEELS P., VILLENEUVE M., DE PAEPE P. and KLERKX J. (1989) - Timing of the volcanism of the souther Kivu province: implications for the evolution of the wester branch of the East A frican Rif t system. Earth Planet. Sci. Lett., 94, 353-363.
61. PECCERILLO A. (1985) - Roman comagmatic province (central Italy): evidence for subduction-related magnw genesis. Geology, 13, 103-106.
62. -, (1998) - Relationships between ultrapotassic and carbonate-rich volcanic rocks in central Italy: petrogenetic and geodynamic implications. Lithos, 43, 267-279.
63. -, (1999) - Multiple mantle metasmnatism in central-souther Italy: Geochemical efects, timing and geodynamic implications. Geology, 27, 315-318.
64. POUCLET A., MENOT R.-P. and PIBOULE M. (1983) -Le magmatisme alcalin potassique de l'aire volcanique des Viringa (Rift occide ntale del 'Afrique del 'Est). Une approche statistique dnas la recherche des fi liations magmatiques et des nuicanismes de differenciation. Bull. Mineral., 106, 607-622.
65. PRELEVIC D., FOLEY S.F., CVETKOVIC V., JOVANOVIC M. and MELZER S. (2001) - Tertia ry ultrapotassic-potassic rocks fr01n Serbia, Yugoslavia. Acta Vulcanol., 13, 101-115.
66. RANCOURT D.G., DANG M.Z. and LALONDE A.E. (1992) - Mossbauer sp ectroscopy of tetrahedral Fe3+ in trioctahedral 1nicas. Am. Mineral., 77, 34-43.
67. RIGHTER K. and CARMICHAEL I.S.E. (1996) - Phase equilibria of phlogopite lamprophyres front western Mexico: biotite-liquid equilibria and P-T estimates for biotite-bearing igneous rocks. Contrib. Mineral. Petrol., 123, 1-21.
68. ROGERS N.W., HAWKESWORTH C.J., PARKER R.J. and MARSH J. S. (1985) - Th e geochemistry of potassic lavas fr om Vulsini, central Italy and implications for mantle enrichment processes beneath the Roman region. Contrib. Mineral. Petrol., 90, 244-257.
69. ROGERS N.W., LAMES D., KELLEY S.P. and DE MULDER M. (1998) - The Generation of Potassic Lavas from the Eastern Virunga Province, Rwanda. J. Petrol., 39, 1223-1247.
70. RYABCHIKOV I.D. and GREEN D.H. (1978) - The role of carbon dioxide in the petrogenesis of highly potassic magmas, Problems of petrology of the Earth's crust and upper mantle. Volume 403: Novosibirsk, Inst. Geol. Geofiz. Nauka, 49-64.
71. SAHAMA T.G. (1974) - Potassium-rich alkaline rocks, in S0rensen, H., ed., The Alkaline Rocks: London, Wiley, 96-109.
72. SAHAMA T.G. and WRRK H.B. (1952) - Leucite, potash nepheline, and clinopyroxene from volcanic lavas from southwester Uganda and adjoining Belgian Congo. Am. J. Sci., v. Part 2, 457-470.
73. SERRI G., INNOCENTI F. and MANETTI P. (1993) -Geochemical and petrological evidence of the subduction of de/aminated Adriatic continental lithosphere in the genesis of the Neogene-Quaternary magmatism of central Italy. Tectonophysics, 223, 117-147.
74. SGARBI P.B.A. and GASPAR J.C. (2002) -Geochemistry of Santa Ant6nio da Barra Kamafugites, Goias, Brazil. J. S. Am. Earth Sci., 14, 889-901.
75. SGARBI P.B.A., GASPAR J.C. and VALENCIA J.G. (2000) - Clinopyroxene from Brazilian kamafugites. Lithos, 53, 101-116.
76. SIMIYU S.M. and KELLER G.R. (1997) - An integrated analysis of lithospheric structure across the East African plateau based on gravity anomalies and recent seismic studies. Tectonophysics, 278, 291-313.
77. STOPPA F. and CUNDARI A. (1995) - A new Italian carbonatite occurrence at Cupaello (Rieti) and its genetic significance. Contrib. Mineral. Petrol., 122, 275-288.
78. -, (1998) - Origin and multiple crystallization of the kamafugite-carbonatite association: the San Venanzo-Pian di Celle occurrence (Umbria, Italy). Mineral. Mag., 62, 273-289.
79. STOPPA F. and LAVECCHIA G. (1992) - Late Pleistocene ultra-alkaline magmatic activity in the Umbria-Latium region (Italy): an overvinv. J. Volcanol. Geotherm. Res., 52, 277-293.
80. STOPPA F. and WOOLLEY A.R. (1997) - The Italian carbonatites: field occurrence, petrology and regional signiicance. Mineral. Petrol., 59, 43-67.
81. STOPPA F., WOOLLEY A.R. and CUNDARI A. (2002) - Extension of the melilite-carbonatite province in the Apennines of Italy: the kamafugite of Grotta del Cervo, Abruzzo. Mineral. Mag., 66, 555-574.
82. STOPPA F., WOOLLEY A.R., LLOYD F.E. and EBY N. (2000) - Carbonatite lapilli-bearing t u f and a dolomite carbonatite bomb fr om Murumuli crater, Katwe volcanic field, Vganda. Mineral. Mag., 64, 641-650.
83. STORMER J.C. (1973) - Calcium zoning in olivine and its relationship to silica activity and pressure. Geochim. Cosmochim. Acta, 37, 1815-1821.
84. SUN S.-S. and MCDONOUGH W.F. (1989) -Chemical and isotopic systematics of ocean basalts: implications f o r mantle composition and processes, in Saunders, A.D., and Norry, M.J., eds., Magmatism in the Ocean Basins, Volume 42, Geol. Soc. Land., Spec. Publ., 313-345.
85. TURNER S.P., PLATT J.P., GEORGE R.M.M., KELLEY S.P., PEARSON D.G. and NOWELL G.M. (1999) -Magmatism Associated with Orogenic Collapse of the Betic-Alboran Domain, S E S p ain. J. Petrol., 40, 1011-1036.
86. VENTURELLI G., THORPE R.S., DAL PIAZ G.V., DEL MORO A. and POTTS P.J. (1984) - Petrogenesis of calk-alkaline, shoshonitic and associated ultrapotassic Oligocene volcanic rocks fr ont the Northwestern Alps, Italy. Contrib. Mineral. Petrol., 86, 209-220.
87. VOLLMER R., JOHNSTON K., GHIARA M.R., LIRER L. and MUNNO R. (1981) - Sr isotope geochemistr y of megacrysts from continental r i and converging plate margin alkaline volcanism in South Italy. J. Volcanol. Geotherm. Res., 11, 317-327.
88. VON KNORRING O. and DU BOIS C.G.B. (1961) -Carbonatitic lava from Fort Po rtal area in western Uganda. Nature, 192, 1064-1065.
89. WATSON E.B. and GREEN T.H. (1981) - Apatite/ liquid partition coefficients for the rare earth elements and strontiwn. Earth Planet. Sci. Lett., 56, 405-421.
90. WOOLLEY A.R., BERGMAN S.C., EDGAR A.D., LE BAS M.J., MITCHELL R.H., ROCK N. M. S. and SCOTT SMITH B.H. (1996) - Classification of Lamprophyres, Lamproites, Kimberlites, and the Kalsilitic, Melilitic and Leucitic rocks. Can. Mineral., 34, 175-186.
91. YODER H.S. Jr. (1986) - Potassium-rich rocks: phase analysis and heteromorphic relations. J. Petrol., 27, 1215-1228.
92. ZANETTI A., MAZZUCCHELLI M., RIVALENTI G. and VANNUCCI R. (1999) - The Finero phlogopite-pe ridotite massif: an examp le of s ubduction-related metasomatism. Contrib. Mineral. Petrol., 134, 107-122.