[en] Major and trace elements, Sr and Nd isotopic data as well as mineral compositions are presented for a selection of the 1.0 - 0.9 ferro-potassic A-type granitoids (Bessefjellet, Rustfjellet, Verhuskjerringi, Valle, Holum, Svöfjell, Handeland-Tveit, Åseral, Lyngdal gabbronorites) that occur close to the Mandal-Ustaoset Line of southern Norway. These hornblende biotite granitoids (HBG) define an extensive differentiation trend ranging from gabbronorites (50 wt % SiO2) to granites (77 wt % SiO2). This trend is interpreted as resulting from extreme fractional crystallization of several basaltic magma batches with similar major and trace elements compositions. At 930 Ma, the HBG suite displays a narrower range in ISr (0.7027 - 0.7056) than in Nd(t) (+1.97 down to -4.90) suggesting some assimilation of a Rb-depleted lower crust (AFC process) or/and source variability. An age of 929 ± 47 Ma is given by a Rb-Sr isochron on the Holum granite (Sri = 0.7046 ±0.0006, MSWD = 1.7). Geothermobarometers indicate a low pressure of emplacement (1.3-2.7 kbar) and an oxygen fugacity close to NNO. High liquidus temperatures are given by the apatite saturation thermometer (1005°C to 1054 °C) and are in agreement with results from other studies. The basaltic parent magmas of the HBG suite are partial melts of an hydrous mafic, potassic source lying either in the lithospheric upper mantle or in the mafic lower crust derived from it. This contrasts with the 930 Ma anorthosite-mangerite-charnockite suite (AMC) of the Rogaland Province for which a depleted lower crustal anhydrous gabbronoritic source has been indicated. The present data imply the penecontemporaneous melting of two contrasting sources in southern Norway. The source duality could result from an increasing degree of metamorphism (amphibolite to granulite) from East to West, an horizontal stratification of the lower crust or from the stratification of the lithosphere (melting of the lower crust or upper mantle). It may also indicate that the AMC and HBG suites formed in two distinct crustal segments. The linear alignment of the HBG suite along the Mandal-Ustaoset shear zone suggests that a linear uprise of the asthenosphere, following a lithospheric delamination under this structure, could be the vector of the mantle heat.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Vander Auwera, Jacqueline ; Université de Liège - ULiège > Département de géologie > Pétrologie, géochimie endogènes et pétrophysique
Albarède, F., The growth of continental crust (1998) Tectonophysics, 296, pp. 1-14
Allègre, C.J., Treuil, M., Minster, J.-F., Minster, B., Albarède, F., Systematic use of trace elements in igneous processes. I. Fractional crystallization processes in volcanic suites (1977) Contrib. Miner. Petrology, 60, pp. 57-75
Anders, E., Grevesse, N., Abundances of the elements: Meteoritic and solar (1989) Geochim. Cosmochim. Acta, 53, pp. 197-214
Anderson, J.L., Proterozoic anorogenic granites of the southwestern United States (1987) Geological Evolution of Arizona, Vol. 17. Arizona Geological Digest, 17, pp. 1-26. , Jenney, J.P., Reynolds, S.J. (Eds.)
Anderson, J.L., Status of thermobarometry in granitic batholiths (1996) Transactions of the Royal Society of Edinburgh. Earth Sci., 87, pp. 125-138
Andersen, T., Radiogenic isotope systematics of the Herefoss granite south Norway: An indicator of Sveconorwegian (Grenvillian) crustal evolution in the Baltic shield (1997) Chem. Geol., 135, pp. 139-158
Anderson, J.L., Smith, D.R., The effect of temperature and oxygen fugacity on Al-in-hornblende barometry (1995) Am. Miner., 80, pp. 549-559
Andersen, T., Maijer, C., Verschure, R.H., Metamorphism, provenance ages and source characteristics of Precambrian clastic metasediments in the Bamble sector, south Norway (1995) Petrology, 3, pp. 321-339
Andersson, M., Lie, J.E., Husebye, E.S., Tectonic setting of postorogenic granites within SW Fennoscandia based on deep seismic and gravity data (1996) Terra Nova, 8, pp. 558-566
Andersen, T., Andresen, A., Sylvester, A.G., Nature and distribution of deep crustal reservoirs in the southwestern part of the Baltic shield: Evidence from Nd, Sr and Pb isotope data on late Sveconorwegian granites (2001) J. Geol. Soc. Lond., 158, pp. 253-267
Ashwal, L., (1993) Anorthosites, p. 422. , Springer-Verlag, New York
Bau, M., Controls on the fractionation of isovalent trace elements in magmatic and aqueous systems: Evidence from Y/Ho, Zr/Hf, and lanthanide tetrad effect (1996) Contrib. Miner. Petrology, 123, pp. 323-333
Bingen, B., Van Breemen, O., U-Pb monazite ages in amphibolite- to granulite-facies orthogneiss reflect hydrous mineral breakdown reactions: Sveconorwegian Province of SW Norway (1998) Contrib. Miner. Petrology, 132, pp. 336-353
Bingen, B., Van Breemen, O., Tectonic regimes and terrane boundaries in the high-grade Sveconorwegian belt of SW Norway, inferred from U-Pb zircon geochronology and geochemical signature of augen gneisses suites (1998) J. Geol. Soc. Lond., 155, pp. 143-154
Bingen, B., Demaiffe, D., Hertogen, J., Weis, D., Michot, J., K-rich calc-alkaline augen gneisses of Grenvillian age in SW Norway: Mingling of mantle-derived and crustal components (1993) J. Geol., 101, pp. 763-778
Bingen, B., Birkeland, A., Nordgulen, O., Sigmond, E., Correlation of supracrustal sequences and origin of terranes in the Sveconorwegian orogen of SW Scandinavia: SIMS data on zircon in clastic sediments (2001) Precambrian Res., 108, pp. 293-318
Bogaerts, M., Scaillet, B., Liégeois, J.-P., Vander Auwera, J., Petrology of the Lyngdal granodiorite (southern Norway) and the role of fractional crystallization in the genesis of Proterozoic rapakivi-like granites (2003) Precambrian Res., 124, pp. 149-184
Bogaerts, M., Scaillet, B., Vander Auwera, J., Experimental determination of the Lyngdal granodiorite (southern Norway) (2001) J. Conf. Abs., 6, p. 770
Bolle, O., Diot, H., Trindade, R., Magnetic fabrics in the Holum granite (Vest-Agder, southernmost Norway): Implications for the late evolution of the Sveconorwegian (Grenvillian) orogen of SW Scandinavia Precambrian Res., , in press
Bologne, G., Duchesne, J.C., Analyse des roches silicatées par spectrométrie de fluorescence X: Précision et exactitude (1991) Service Géologique de Belgique, Professional Paper, 249 (5), pp. 1-11
Brown, G.C., Space and time in granite plutonism (1981) Philos. Trans. R. Soc. Lond., A301, pp. 321-336
Chauvel, C., Blichert-Toft, J., A hafnium isotope and trace element perspective on melting of the depleted mantle (2001) Earth Planetary Sci. Lett., 190, pp. 137-151
Clemens, D.J., Holloway, J.R., White, A.J.R., Origin of an A-type granite: Experimental constraints (1986) Am. Miner., 71, pp. 317-324
Dall'Agnol, R., Scaillet, B., Pichavant, M., An experimental study of a lower Proterozoic A-type granite from the eastern Amazonian Craton, Brazil (1999) J. Petrology, 40, pp. 1673-1698
Debon, F., Le Fort, P., A chemical-mineralogical classification of common plutonic rocks and associations (1983) Transactions of the Royal Society of Edinburgh. Earth Sci., 73, pp. 135-149
Demaiffe, D., Hertogen, J., Rare earth geochemistry and strontium isotopic composition of a massif-type anorthositic-chamockitic body: The Hidra massif (Rogaland SW Norway) (1981) Geochim. Cosmochim. Acta, 45, pp. 1545-1561
Demaiffe, D., Weis, D., Michot, J., Duchesne, J.C., Isotopic constraints on the genesis of the Rogaland anorthositic suite (southwest Norway) (1986) Chem. Geol., 57, pp. 167-179
Demaiffe, D., Bingen, B., Wertz, P., Hertogen, J., Geochemistry of the Lyngdal hyperites (SW Norway): Comparison with the monzonorites associated with the Rogaland anorthosite complex (1990) Lithos, 24, pp. 237-250
Dons, J.A., The stratigraphy of supracrustal rocks, granitization and tectonics in the Precambrian Telemark area, southern Norway. Guide to excursion A10 (1960) Proceedings of the 21st International Geol Congress, 212, p. 30. , Norges Geologisk Undersokelse, Norden
Droop, G.T.R., A general equation for estimating Fe3+ concentrations in ferromagnesian silicates and oxides from microprobe analyses, using stoichiometric criteria (1987) Miner. Mag., 51, pp. 431-435
Duchesne, J.C., Wilmart, E., Igneous chamockites and related rocks from the Bjerkreim-Sokndal layered intrusion (southwest Norway): A jotunite (hypersthene monzodiorite)-derived A-type granitoid suite (1997) J. Petrology, 38, pp. 337-369
Duchesne, J.C., Roelandts, I., Demaiffe, D., Hertogen, J., Gijbels, R., De Winter, J., Rare-earth data on monzonoritic rocks related to anorthosites and their bearing on the nature of the parental magma of the anorthositic series (1974) Earth Planetary Sci. Lett., 24, pp. 325-335
Duchesne, J.C., Berza, T., Liégeois, J.-P., Vander Auwera, J., Shoshonitic liquid line of descent from diorite to granite: The late Precambrian postcollisional Tismana pluton (south Carpathians, Romania) (1998) Lithos, 45, pp. 281-303
Duchesne, J., Liégeois, J.-P., Vander Auwera, J., Longhi, J., The crustal tongue melting model and the origin of massive anorthosites (1999) Terra Nova, 11, pp. 100-105
Eby, G.N., The A-type granitoids: A review of their occurrence and chemical characteristics and speculations on their petrogenesis (1990) Lithos, 26, pp. 115-134
Emslie, R.F., Granitoids of rapakivi granite-anorthosite and related associations (1991) Precambrian Res., 51, pp. 173-192
Emslie, R.F., Stirling, J.A.R., Rapakivi and related granitoids of the Nain plutonic suite: Geochemistry, mineral assemblages and fluid equilibria (1993) Can. Miner., 31, pp. 821-847
Falkum, T., The Sveconorwegian magmatic and tectono-metamorphic evolution of the high-grade Proterozoic Flekkefjord complex, south Norway (1998) Norges Geologisk Understökelse, 434, pp. 5-34
Falkum, T., Petersen, J.S., A three-fold division of the "farsundite" plutonic complex at Farsund, southern Norway (1974) Norsk Geologisk Tidsskrift, 54, pp. 361-366
Falkum, T., Wilson, J.R., Annis, M.P., Fregerslev, S., Zimmermann, H., The intrusive granites of the Farsund area, south Norway (1972) Norsk Geologisk Tidsskrift, 52, pp. 463-465
Falkum, T., Wilson, J., Petersen, J., Zimmermann, H.D., The intrusive granites of the Farsund area, south Norway. Their interrelations and relations with the Precambrian metamorphic envelope (1979) Norsk Geologisk Tidsskrift, 59, pp. 125-139
Frost, C.D., Frost, B.R., Reduced rapakivi-type granites: The tholeiite connection (1997) Geology, 25, pp. 647-650
Frost, C.D., Frost, B.R., Chamberlain, K.R., Edwards, B.R., Petrogenesis of the 1.43 Ga Sherman batholith SE Wyoming USA: A reduced rapakivi-type anorogenic granite (1999) J. Petrology, 40, pp. 1771-1802
Fuhrman, M.I., Frost, B.R., Lindsley, D.H., Crystallization conditions of the Sybille monzosyenite, Laramie Anorthosite Complex, Wyoming (1988) J. Petrology, 29, pp. 699-729
Grove, T.L., Bryan, W.B., Fractionation of pyroxene-phyric MORB at low pressure: An experimental study (1983) Contrib. Miner. Petrology, 84, pp. 293-309
Hanson, G.N., The application of trace elements to the petrogenesis of igneous rocks of granitic composition (1978) Earth Planetary Sci. Lett., 38, pp. 26-43
Harrison, T.M., Watson, E.B., The behavior of apatite during crustal anatexis: Equilibrium and kinetic considerations (1984) Geochim. Cosmochim. Acta, 48, pp. 1467-1477
Holland, T., Blundy, J., Non-ideal interactions in calcic amphiboles and their beating on amphibole-plagioclase thermometry (1994) Contrib. Miner. Petrology, 116, pp. 443-447
Irber, W., The lanthanide tetrad effect and its correlation with K/Rb, Eu/Eu*, Sr/Eu, Y/Ho, and Zr/Hf of evolving peraluminous granite suites (1999) Geochim. Cosmochim. Acta, 63, pp. 489-508
Irvine, T.N., Baragar, W.R.A., A guide to the chemical classification of the common volcanic rocks (1971) Can. J. Earth Sci., 8, pp. 523-548
Jacobsen, S.B., Heier, K.S., Rb-Sr isotope systematics in metamorphic rocks Kongsberg, sector, south Norway (1978) Lithos, 11, pp. 257-276
Jahn, B., Wu, F., Capdevila, R., Martineau, F., Zhao, Z., Wang, Y., Highly evolved juvenile granites with tetrad REE patterns: The Woduhe and Baerzhe granites from the Great Xing'an Mountains in NE China (2001) Lithos, 59, pp. 171-198
Johnson, M.C., Rutherford, M.J., Experimental calibration of the aluminium-in-hornblende geobarometer with application to Long Valley caldera (California) volcanic rocks (1989) Geology, 17, pp. 837-841
Killeen, P.G., Heier, K.S., Th, U, K, and heat production measurements in ten Precambrian granites of the Telemark area, Norway (1975) Norges Geologisk Undersokelse, 319, pp. 59-83
Kolker, A., Lindsley, D.H., Geochemical evolution of the Maloin Ranch pluton, Laramie Anorthosite Complex, Wyoming: Petrology and mixing, relations (1989) Am. Miner., 74, pp. 307-324
Leake, B., Nomenclature of amphiboles (1978) Can. Miner., 16, pp. 501-520
Liégeois, J.-P., (1988) Le Batholite Composite de l'Adrar des Iforas (Mali), p. 231. , Académie royale des Sciences d'Outre-mer, Classe des Sciences Naturelles et Médicales
Liégeois, J.-P., Black, R., Alkaline magmatism subsequent to collision in the Pan-African belt of the Adrar des Iforas (1987) Alkaline Igneous Rocks, pp. 381-401. , Fitton, J.G., Upton, B.G.J. (Eds.). The Geological Society, Blackwell
Liégeois, J.-P., Navez, J., Hertogen, J., Black, R., Contrasting origin of postcollisional high-K calc-alkaline and shoshonitic versus alkaline and peralkaline granitoids. The use of sliding normalization (1998) Lithos, 45, pp. 1-28
Loiselle, M.C., Wones, D., Characteristics and origin of anorogenic granites (1979) Geol. Soc. Am. Abs. Prog., 11, p. 468
Longhi, J., Vander Auwera, J., Fram, M., Duchesne, J.C., Some phase equilibrium constraints on the origin of Proterozoic massif anorthosites and related rocks (1999) J. Petrology, 40, pp. 339-362
Ludwig, K.R., (2001) User's Manual for Isoplot/Ex Version 2.49: A Geochronological Toolkit for Micrososft EXCEL, pp. 1a. , Berkeley Geochronology Center, Special Publication
Mahood, G., Hildreth, W., Large partition coefficients for trace elements in high-silica rhyolites (1983) Geochim. Cosmochim. Acta, 47, pp. 11-30
Menuge, J., (1982) Nd Isotope Studies of Crust-Mantle Evolution: The Proterozoic of South Norway and the Archean of South Africa, , Ph.D. thesis, Cambridge University, United Kingdom
Menuge, J., The petrogenesis of massif anorthosites: A Nd and Sr isotopic investigation of the Proterozoic of Rogaland/Vest-Agder, SW Norway (1988) Contrib. Miner. Petrology, 98, pp. 363-373
Mitchell, J.N., Scoates, J., Frost, C.D., High-A1 gabbros in the Laramie Anorthosite Complex, Wyoming: Implications for the composition of melts parental to Proterozoic anorthosite (1995) Contrib. Miner. Petrology, 119, pp. 166-180
Nelson, B.K., DePaolo, D.J., 1700 Myr greenstone volcanic successions in southwestern North America and isotopic evolution of Proterozoic mantle (1984) Nature, 312, pp. 143-146
Pasteels, P., Michot, J., Geochronological investigation of the metamorphic terrain of southwestern Norway (1975) Norsk Geologisk Tidsskrift, 55, pp. 111-134
Pasteels, P., Demaiffe, D., Michot, J., U-Pb and Rb-Sr geochronology of the eastern part of the south Rogaland igneous complex, southern Norway (1979) Lithos, 12, pp. 199-208
Peccerillo, A., Taylor, S.R., Geochemistry of eocene calc-alkaline volcanic rocks from the Kastamonu area northern Turkey (1976) Contrib. Miner. Petrology, 58, pp. 63-81
Perchuk, L.L., Aranovich, L.Y., Podlesskii, K.K., Lavrant'eva, I.V., Gerasimov, V.Y., Fed'kin, V.V., Kitsul, V.I., Berdnikov, N.V., Precambrian granulites of the Aldan shield eastern Siberia, USSR (1985) J. Metamorphic Geol., 3, pp. 265-310
Petersen, J.S., Rare-earth element fractionation and petrogenetic modelling in charnockitic rocks SW Norway (1980) Contrib. Miner. Petrology, 73, pp. 161-172
Petersen, J.S., The zoned Kleivan granite: An end-member of the anorthositic suite in SW Norway (1980) Lithos, 13, pp. 79-95
Poitrasson, F., Duthou, J.L., Pin, C., The relationship between petrology and Nd isotopes as evidence for contrasting anorogenic granite genesis: Example of the Corsican Province (SE France) (1995) J. Petrology, 36, pp. 1251-1274
Priem, H., Verschure, R., Review of the isotope geochronology of the high-grade metamorphic Precambrian of SW Norway (1982) Geologische Rundschau, 71, pp. 81-84
Rapp, R.P., Watson, E.B., Dehydration melting of metabasalt at 8-32 kbar: Implications for continental growth and crust-mantle recycling (1995) J. Petrology, 36, pp. 891-931
Rickwood, P.C., Boundary lines within petrologic diagrams which use oxides of major and minor elements (1989) Lithos, 22, pp. 247-264
Roelandts, I., Robaye, G., Weber, G., Delbrouck, J.M., Duchesne, J.C., Determination of fluorine by proton-induced gamma-ray emission (PIGE) spectrometry in igneous and metamorphic charnockitic rocks from Rogaland (SW Norway) (1987) J. Radionuclear Chem., 112, pp. 453-460
Rudnick, R.L., Fountain, D.M., Nature and composition of the continental crust: A lower crustal perspective (1995) Rev. Geophys., 33, pp. 267-309
Schärer, U., Wilmart, E., Duchesne, J.C., The short duration and anorogenic character of anorthosite magmatism: U-Pb dating in the Rogaland complex, Norway (1996) Earth Planetary Sci. Lett., 139, pp. 335-350
Schmidt, M., Amphibole composition in tonalite as a function of pressure: An experimental calibration of the Al-in-hornblende (1992) Contrib. Miner. Petrology, 110, pp. 304-310
Sigmond, E.M.O., The Mandal-Ustaoset Line, a newly discovered major fault zone in south Norway (1985) The Deep Proterozoic Crust in the North Atlantic Provinces, pp. 323-331. , Tobi, A., Touret, J. (Eds.). NATO Advanced Study Institute Series Reidel, Dordrecht
Steiger, R.H., Jäger, E., Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmochronology (1977) Earth Planetary Sci. Lett., 36, pp. 359-362
Streckeisen, A.L., To each plutonic rock its proper name (1976) Earth Sci. Rev., 12, pp. 1-33
Sun, S.S., Mc Donough, W.F., Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes (1989) Magmatism in the Ocean Basins, pp. 313-345. , Saunders, A., Norry, M. (Eds.). Geological Society Special Pubhcation, Blackwell
Sylvester, A.G., Magma mixing, structure, and re-evaluation of the emplacement mechanism of the Vradal pluton, central Telemark, southern Norway (1998) Norsk Geologisk Tidsskrift, 78, pp. 259-276
Tobi, A., Hermans, G., Maijer, C., Jansen, J., Metamorphic zoning in the high-grade Proterozoic of Rogaland-Vest Agder, SW Norway (1985) The Deep Proterozoic Crust in the North Atlantic Provinces, pp. 477-497. , Tobi, A.T., J.L.R. (Eds.). NATO Advanced Study Institute Series, Reidel, Dordrecht
Turner, S.P., Foden, J.D., Morrisson, R.S., Derivation of some A-type magmas by fractionation of basaltic magma: An example of the Pathway Ridge, south Australia (1992) Lithos, 28, pp. 151-179
Vander Auwera, J., Longhi, J., Experimental study of a jotunite (hypersthene monzodiorite): Constraints on the parent magma composition and crystallization conditions (P, T, fO2) of the Bjerkreim-Sokndal layered intrusion (Norway) (1994) Contrib. Miner. Petrology, 118, pp. 60-78
Vander Auwera, J., Longhi, J., Duchesne, J.C., A liquid line of descent of the jotunite (hypersthene monzodiorite) suite (1998) J. Petrology, 39, pp. 439-468
Vander Auwera, J., Bologne, G., Roelandts, I., Duchesne, J.C., Inductively coupled plasma-mass spectrometric (ICP-MS) analysis of silicate rocks and minerals (1998) Geol. Belgica, 1, pp. 49-53
Vander Auwera, J., Liégeois, J.-P., Demaiffe, D., Bolle, O., Bogaerts, M., Duchesne, J.C., Two distinct postcollisional magmatic suites in the Sveconorwegian of southern Norway: Consequence for the evolution of the Proterozoic continental lithosphere (2001) J. Conf. Abs., 6, p. 769
Watson, E.M., Harrison, T.M., Zircon saturation revisited: Temperature and compositional effects in a variety of crustal magma types (1983) Earth Planetary Sci. Lett., 64, pp. 295-304
Whalen, J.B., Currie, K.L., Chappell, B.W., A-type granites: Geochemical characteristics discrimination and petrogenesis (1987) Contrib. Miner. Petrology, 95, pp. 407-419
Wielens, J.B.W., Andriessen, P.A.M., Boelrijk, N.A.M., Hebeda, E.H., Priem, H.N.A., Verdumen, E.A.T., Verschure, R.H., Isotope geochronology in the high-grade metamorphic Precambrian of southwestern Norway: New data and reinterpretations (1981) Norges Geologisk Undersokelse Bull., 359, pp. 1-30
Wilmart, E., Demaiffe, D., Duchesne, J.C., Geochemical constraints on the genesis of the TelInes ilmenite deposit, southwest Norway (1989) Econ. Geol., 84, pp. 1047-1056
Wilson, J.R., Pedersen, S., Berthelsen, C.R., Jakobsen, B.M., New light on the Precambrian Holum granite (1977) Norsk Geologisk Tidsskrift, 57, pp. 347-360
Wones, D.R., Significance of the assemblage titanite + magnetite + quartz in granitic rocks (1989) Am. Miner., 74, pp. 744-749
Zhou, X., Bingen, B., Demaiffe, D., Liégeois, J.-P., Hertogen, J., Weis, D., Michot, J., The 1160 Ma Hidderskog meta-charnockite: Implications of this A-type pluton for the Sveconorwegian belt in Vest Agder (SW Norway) (1995) Lithos, 36, pp. 51-66