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Petrogenesis of syenites at a rifted continental margin: origin, contamination and interaction of alkaline mafic and felsic magmas in the Astrophyllite Bay Complex, East Greenland

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Abstract

The Astrophyllite Bay Complex in East Greenland (part of the Palaeogene North Atlantic Igneous Province) consists of an alkaline diorite plug, with detached trachyandesitic pillows, surrounded by co-magmatic syenite that was emplaced into Archaean basement. The diorite intrusion has yielded a 47.11 ± 0.68 Ma Rb-Sr isochron age. Saw-cut profiles through pillow-syenite-gneiss sections have been taken to resolve close spatial elemental and isotopic (Sr-Nd-Hf-Pb-O) variations. The diorite and syenite formed from alkaline basaltic, mantle-derived, melts with complex histories of prolonged assimilation and fractional crystallisation. Each evolved to different extents in separate magma chambers during the establishment of new plumbing systems in the Kangerlussuaq area. The diorite is dominated by lower crustal, granulite facies contamination, whereas the syenite shows evidence for greater degrees of upper crustal amphibolite facies contamination, indicating stalling and fractionation of magmas at different levels within the crust. The syenite and diorite magmas were subsequently emplaced as separate pulses into the basement gneisses at Astrophyllite Bay giving rise to superimposed local contamination trends between pillow/syenite and syenite/gneiss, respectively.

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References

  • Andreasen R, Peate DW, Brooks CK (2004) Magma plumbing systems in large igneous provinces: Inferences from cyclical variations in Palaeogene East Greenland basalts. Contrib Mineral Petrol 147:438–452

    Google Scholar 

  • Baker J, Peate D, Waight T, Meyzen C (2004) Pb isotopic analysis of standards and samples using a 207Pb−204Pb double spike and thallium to correct for mass bias with a double-focusing MC-ICP-MS. Chem Geol 211:275–303

    Google Scholar 

  • Barbarin B, Didier J (1992) Genesis and evolution of mafic microgranular enclaves through various types of interaction between coexisting felsic and mafic magma. Trans R Soc Edinburgh: Earth Sci 83:145–153

    Google Scholar 

  • Bauer K, Trumbull RB, Vietor T (2003) Geophysical images and a crustal model of intrusive structures beneath the Messum ring complex, Namibia. Earth Planet Sci Lett 216:65–80

    Google Scholar 

  • Bernstein S, Bird DK (2000) Formation of wehrlites through dehydration of metabasalt xenoliths in layered gabbros of the Noe-Nygaard Intrusion, Southeast Greenland. Geol Mag 137:109–128

    Google Scholar 

  • Bernstein S, Kelemen PB, Tegner C, Kurz MD, Blusztajn J, Brooks CK (1998) Post-breakup basaltic magmatism along the East Greenland Tertiary rifted margin. Earth Planet Sci Lett 160:845–862

    Google Scholar 

  • Bizzarro M, Baker JA, Ulfbeck D (2003) A new digestion and chemical separation technique for rapid and highly reproducible determination of Lu/Hf and Hf isotope ratios in geological materials by MC-ICP-MS. Geostand Newsl 27:133–145

    Google Scholar 

  • Blichert-Toft J, Lesher CE, Rosing MT (1992) Selectively contaminated magmas of the Tertiary East Greenland macrodike complex. Contrib Mineral Petrol 110:154–172

    Google Scholar 

  • Bottinga Y, Weill DF (1972) The viscosity of magmatic silicate liquids: a model for calculation. Am J Sci 272:438–475

    Google Scholar 

  • Brooks CK (1977) Example of magma mixing from the Kialineq district of East Greenland. Bull Geol Soc Denmark 26:77–83

    Google Scholar 

  • Brooks CK, Gill RCO (1982) Compositional variation in the pyroxenes and amphiboles of the Kangerdlugssuaq intrusion, East Greenland: further evidence for the crustal contamination of syenite magma. Miner Mag 45:1–9

    Google Scholar 

  • Brooks CK, Nielsen TFD (1982a) The Phanerozoic development of the Kangerdlugssuaq area, East Greenland. Medd Grønland Geosci 9:1–30

    Google Scholar 

  • Brooks CK, Nielsen TFD (1982b) The E Greenland continental margin: a transition between oceanic and continental magmatism. J Geol Soc London 139:265–275

    Google Scholar 

  • Brown PE, Becker SM (1986) Fractionation, hybridisation and magma mixing in the Kialineq centre, East Greenland. Contrib Mineral Petrol 92:57–70

    CAS  Google Scholar 

  • Cohen RS, O’Nions RK (1982) The lead, neodymium and strontium isotopic structure of ocean ridge basalts. J Petrol 23:299–324

    Google Scholar 

  • Cohen AS, O’Nions RK, O’Hara MJ (1991) Chronology and mechanisms of depletion in Lewisian granulites. Contrib Mineral Petrol 106:142–153

    Google Scholar 

  • Cox KG, Bell JD and Pankhurst RJ (1979) The interpretation of igneous rocks, George, Allen and Unwin, London, 352 pp

    Google Scholar 

  • Dahl-Jensen T, Larsen TB, Woelbern I, Bach T, Hanka W, Kind R, Gregersen S, Mosegaard K, Voss P, Gudmundsson O (2003) Depth to Moho in Greenland: reciever-function analysis suggests two Protorozoic blocks in Greenland. Earth Planet Sci Lett 205:379–393

    Google Scholar 

  • Deer WA (1976) Tertiary igneous rocks between Scoresby Sund and Kap Gustav Holm, East Greenland. In: Escher A, Watt WS (eds) Geology of Greenland. Geological Survey of Greenland, Copenhagen, pp 405–429

    Google Scholar 

  • Deer WA, Kempe DRC (1976) Geological investigations in East Greenland, part XI, the minor peripheral intrusions, Kangerdlugssuaq, East Greenland. Medd Grønland 197:1–25

    Google Scholar 

  • DePaolo DJ (1981) Trace element and isotopic effects of combined wallrock assimilation and fractional crystallisation. Earth Planet Sci Lett 53:189–202

    Article  CAS  Google Scholar 

  • Dickin AP (1981) Isotope geochemistry of tertiary igneous rocks from the Isle of Skye, N. W. Scotland. J Petrol 22:155–189

    CAS  Google Scholar 

  • Downes H (1987) Tertiary and quaternary volcanism in the Massif Central, France. In: Fitton JG, Upton BGJ (eds), Alkaline igneous rocks, Geological Society Special Publication 30. Blackwell, Oxford, pp 517–530

    Google Scholar 

  • Eby GN (1987) The Monteregian Hills and White Mountain alkaline igneous provinces, eastern North America. In: Fitton JG, Upton BGJ (eds) Alkaline igneous rocks, Geological Society Special Publication 30. Blackwell, Oxford, pp 433–447

    Google Scholar 

  • Elliott TR, Hawkesworth CJ, Grönvold K (1991) Dynamic melting of the Iceland plume. Nature 351:201–206

    Google Scholar 

  • Fitton JG (1987) The Cameroon line, West Africa: a comparison between oceanic and continental alkaline volcanism. In: Fitton JG, Upton BGJ (eds) Alkaline igneous rocks, Geological Society Special Publication 30. Blackwell, Oxford, pp 273–291

    Google Scholar 

  • Fitton JG, Hardarson BS, Ellam RM, Rogers G (1998) Sr-, Nd- and Pb-isotopic composition of volcanic rocks from the southeast Greenland margin at 63°N: temporal variation in crustal contamination during continental breakup. In: Saunders AD, Larsen HC, Wise SW Jr (eds) Proc ODP Sci Results 152:351–358

  • Fram MS, Lesher CE (1993) Geochemical constraint on mantle melting during creation of the North Atlantic basin. Nature 363:712–715

    Google Scholar 

  • Fram MS, Lesher CE (1997) Generation and polybaric differentiation of East Greenland early tertiary flood basalts. J Petrol 38:231–275

    Google Scholar 

  • Fram MS, Longhi J (1992) Phase equilibria of dykes associated with Proterozoic anorthosite complexes. Am Min 77:605–616

    Google Scholar 

  • Fujimaki H (1986) Partition coefficients of Hf, Zr, and REE between zircon, apatite, and liquid. Contrib Mineral Petrol 94:42–45

    Google Scholar 

  • Furman T, Frey FA, Park K-H (1991) Chemical constraint on the petrogenesis of mildly alkaline lavas from Vestmannaeyjar, Iceland: the Eldfell (1973) and Surtsey (1963–1967) eruptions. Contrib Mineral Petrol 109:19–37

    CAS  Google Scholar 

  • Green TH (1969) High-pressure experimental studies on the origin of anorthosites. Can J Earth Sci 6:427–440

    Google Scholar 

  • Halama R, Waight T, Markl G (2002) Geochemical and isotopic zoning patterns of plagioclase megacrysts in gabbroic dykes from the Gardar Province, South Greenland: implications for crystallisation processes in anorthositic magmas. Contrib Mineral Petrol 144:109–127

    Google Scholar 

  • Hald N, Tegner C (2000) Composition and age of tertiary sills and dykes, Jameson Land Basin, East Greenland: relation to regional flood volcanism. Lithos 54:207–233

    Google Scholar 

  • Hanan BB, Schilling J-G (1997) The dynamic evolution of the Iceland mantle plume: the lead isotope perspective. Earth Planet Sci Lett 151:43–60

    Google Scholar 

  • Hansen H, Nielsen TFD (1999) Crustal contamination in Palaeogene East Greenland flood basalts: plumbing system evolution during continental rifting. Chem Geol 157:89–118

    Google Scholar 

  • Hansen H, Pedersen AK, Duncan RA, Bird DK, Brooks CK, Fawcett JJ, Gittins J, Gorton M, O’Day P (2002) Volcanic stratigraphy of the southern Prinsen af Wales Bjerge region, East Greenland. In: Jolley DW, Bell BR (eds) The North Atlantic igneous province: stratigraphy, tectonic, volcanic and magmatic processes. Geological Society of London, Spec Publ 197:183–218

  • Hardarson BS, Fitton JG, Ellam RM, Pringle MS (1997) Rift relocation—a geochemical and geochronological investigation of a palaeo-rift in northwest Iceland. Earth Planet Sci Lett 153:181–196

    Article  CAS  Google Scholar 

  • Hards VL, Kempton PD, Thompson RN (1995) The heterogeneous Iceland plume: new insights from the alkaline basalts of the Snaefell volcanic centre. J Geol Soc London 152:1003–1009

    Google Scholar 

  • Hofmann AW (1980) Diffusion in natural silicate melts: a critical review. In: Hargraves RB (ed) Physics of magmatic processes. Princeton University Press, Princeton, pp 385–417

    Google Scholar 

  • Holbrook WS, Larsen HC, Korenaga J, Dahl-Jensen T, Reid ID, Kelemen PB, Hopper JR, Kent GM, Lizarralde D, Bernstein S, Detrick RS (2001) Mantle thermal structure and active upwelling during continental breakup in the North Atlantic. Earth Planet Sci Lett 190:251–266

    Google Scholar 

  • Holm PM (1988) Nd, Sr and Pb isotope geochemistry of the lower Lavas, E Greenland tertiary igneous province. In: Morton AC, Parson LM (eds) Early tertiary volcanism and the opening of the NE Atlantic, Geol Soc London, Spec Publ. 39:181–195

  • Irvine TN, Barager WRA (1971) A guide to the chemical classification of the common volcanic rocks. Can J Earth Sci 8:523–548

    CAS  Google Scholar 

  • Kalsbeek F, Austrheim H, Bridgwater D, Hansen BT, Pedersen S, Taylor PN (1993) Geochronology of Archaean and Protorozoic events on the Ammassalik area, South-East Greenland, and comparisons with the Lewisian of Scotland and the Nagssugtoqidian of West Greenland. Precambrian Res 62:239–270

    Google Scholar 

  • Kempe DRC, Deer WA (1970) Geological investigations in East Greenland, part IX, the mineralogy of the Kangerdlugssuaq alkaline intrusion, East Greenland. Medd Grønland 190:1–97

    Google Scholar 

  • Kempe DRC, Deer WA (1976) The petrogenesis of the Kangerdlugssuaq alkaline intrusion, East Greenland. Lithos 9:111–123

    Google Scholar 

  • Kempe DRC, Deer WA, Wager LR (1970) Geological investigations in East Greenland, part VIII, the petrology of the Kangerdlugssuaq alkaline intrusion, East Greenland. Medd Grønland 190:1–52

    Google Scholar 

  • Korenaga J, Holbrook WS, Kent GM, Kelemen PB, Detrick RS, Larsen HC, Hopper JR, Dahl-Jensen T (2000) Crustal structure of the southeast Greenland margin from joint refraction and reflection seismic tomography. J Geophys Res 105:21591–21614

    Google Scholar 

  • Larsen LC (1982) Bagnæsset syenitkompleks, Kangerdlugssuaq Distriktet, Østgrønland. M.Sc. thesis, Københavns Universitet, 106 pp.

  • Larsen LM, Watt WS, Watt M (1989) Geology and petrology of the lower tertiary plateau basalts of the Scoresby Sund region, East Greenland. Geol Surv Greenland Bull 157:1–164

    Google Scholar 

  • Larsen LM, Fitton JG, Pedersen AK (2003) Paleogene volcanic ash layers in the Danish Basin: compositions and source areas in the North Atlantic Igneous Province. Lithos 71:47–80

    Google Scholar 

  • Le Bas MJ, Streckeisen AL (1991) The IUGS systematics of igneous rocks. J Geol Soc London 148:825–833

    Google Scholar 

  • Leeman WP, Dasch EJ, Kays MA (1976) 207Pb/206Pb whole-rock ages of gneisses from the Kangerdlugssuaq area, eastern Greenland. Nature 263:469–471

    Google Scholar 

  • Le Maitre RW (Editor) (1989) A classification of igneous rocks and glossery of terms. Blackwell, Oxford, p 193

    Google Scholar 

  • Lesher CE (1994) Kinetics of Sr and Nd exchange in silicate liquids: theory, experiments, and applications to uphill diffusion, isotopic equilibration, and irreversible mixing of magmas. J Geophys Res 99:9585–9604

    Google Scholar 

  • Longhi J, Fram MS, Auwera JV, Montieth JN (1993) Pressure effects, kinetics, and rheology of anorthositic and related magmas. Am Min 78:1016–1030

    Google Scholar 

  • Ludwig KR (2001) Isoplot/Ex rev. 2.49, a geochronological toolkit for Microsoft Excel. Berkeley Geochron Center Spec Pub No. 1a: 55 pp

  • Nielsen TFD (1978) The Tertiary dike swarms of the Kangerdlugssuaq area, East Greenland. An example of magmatic development during continental break-up. Contrib Mineral Petrol 67:63–78

    Google Scholar 

  • Nielsen TFD (1987) Tertiary alkaline magmatism in East Greenland: a review. In: Fitton JG, Upton BGJ (eds), Alkaline igneous rocks, Geological Society Special Publication 30. Blackwell, Oxford, pp 489–515

    Google Scholar 

  • Nielsen TFD (2002) Palaeogene intrusions and magmatic complexes in East Greenland, 66 to 75° N. 2002/113, Geological Survey of Denmark and Greenland report 2002/113

  • Nielsen TFD, Brooks CK (1991) Generation of nordmarkitic melts by melting of basement gneisses: the Astrophyllite Bay complex, Kangerdlugssuaq. Bull Geol Soc Denmark 38(3–4):161–164

    Google Scholar 

  • Noe-Nygaard A (1976) Tertiary igneous rocks between Shannon and Scoresby Sund, East Greenland. In: Escher A, Watt WS (eds) Geology of Greenland. Geological Survey of Greenland, Copenhagen, pp 386–402

    Google Scholar 

  • Oldenburg CM, Spera FJ, Yuen DA, Sewell G (1989) Dynamic mixing in magma bodies: theory, simulations, and implications. J Geophys Res 94: 9215–9236

    Google Scholar 

  • Pankhurst RJ, Beckinsale RD, Brooks CK (1976) Strontium and oxygen isotope evidence relating to the petrogenesis of the Kangerdlugssuaq alkaline intrusion, East Greenland. Contrib Mineral Petrol 54:17–42

    Google Scholar 

  • Park KH (1990) Sr, Nd and Pb isotope studies of ocean island basalts: constraints on their origin and evolution. Columbia University, New York, 252 pp.

    Google Scholar 

  • Peate DW, Stecher O (2003) Pb isotope evidence for contributions from different Iceland mantle components to Palaeogene East Greenland flood basalts. Lithos 67:39–52

    Google Scholar 

  • Peate DW, Baker JA, Blichert-Toft J, Hilton DR, Storey M, Kent AJR, Brooks CK, Hansen H, Pedersen AK, Duncan RA (2003) The Prinsen af Wales Bjerge Formation lavas, East Greenland: the transition from tholeiitic to alkalic magmatism during Palaeogene continental break-up. J Petrol 44:279–304

    Google Scholar 

  • Pedersen AK, Watt M, Watt WS, Larsen LM (1997) Structure and stratigraphy of the early tertiary basalts of the Blosseville Kyst, East Greenland. J Geol Soc London 154:565–570

    Google Scholar 

  • Pringle GJ, Trembath LT, Pajari GE (1974) Crystallization history of a zoned plagioclase. Miner Mag 39:867–877

    Google Scholar 

  • Rosing MT, Lesher CE, Bird DK (1989) Chemical modification of east Greenland tertiary magmas by two-liquid interdiffusion. Geology 17:626–629

    Google Scholar 

  • Ryerson FJ, Weed HC, Piwinskii AJ (1988) Rheology of subliquidus magmas, 1, Picritic compositions. J Geophys Res 93:3421–3436

    Google Scholar 

  • Saunders AD, Fitton JG, Kerr AC, Norry MJ, Kent RW (1997) The North Atlantic igneous province. In: Mahoney JJ, Coffin MF (eds) Large igneous provinces: continental, oceanic, and planetary flood volcanism. Geophysical Monograph. American Geophysical Union 100:45–93

    Google Scholar 

  • Saunders AD, Kempton PD, Fitton JG, Larsen LM (1999) Sr, Nd and Pb isotopes and trace element geochemistry of basalts from the southeast Greenland margin. In: Larsen HC, Duncan RA, Allan JF, Brooks K (eds) Proc. ODP, Sci. Results 163:77–93

    Google Scholar 

  • Sharp ZD (1990) A laser-based microanalytical method for the in situ determination of oxygen isotope ratios of silicates and oxides. Geochim Cosmochim Acta 54:1353–1357

    Article  CAS  Google Scholar 

  • Shaw HR (1969) Rheology of basalt in the melting range. J Petrol 10:510–535

    Google Scholar 

  • Smith J, Brown WL (1988) Feldspar minerals 1. Crystal structures, physical, chemical and microtextural proporties. Springer, Berlin Heidelberg New York, pp 828

    Google Scholar 

  • Stecher O, Carlson RW, Gunnarsson B (1999) Torfajokull: a radiogenic end-member of the Iceland Pb-isotopic array. Earth Planet Sci Lett 165:117–127

    Google Scholar 

  • Sun S-S, Jahn B-M (1975) Lead and strontium isotopes in post-glacial basalts from Iceland. Nature 255:527–530

    Google Scholar 

  • Sun S-s, McDonough WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In: Saunders AD, Norry MJ (eds) Magmatism in the ocean basins. Geological Society Special Publication 42:313–345

    Google Scholar 

  • Sun S-s, Tatsumoto M, J-G S (1975) Mantle plume mixing along the Reykjanes Ridge axis: lead isotope evidence. Science 190:143–147

    Google Scholar 

  • Taylor HP Jr (1968) The oxygen isotope geochemistry of igneous rocks. Contrib Mineral Petrol 19:1–71

    CAS  Google Scholar 

  • Taylor HP Jr, Forester RW (1979) An oxygen and hydrogen isotope study of the Skaergaard intrusion and its country rocks: a description of a 55 m.y. old fossil hydrothermal system. J Petrol 20:335–419

    Google Scholar 

  • Taylor TR, Vogel TA, Wilband JT (1980) The composite dikes at Mount Desert Island, Maine: an example of coexisting acidic and basic magmas. J Geol 88:433–444

    CAS  Google Scholar 

  • Taylor PN, Kalsbeek F, Bridgwater D (1992) Discrepancies between neodymiun, lead and strontium model ages from the Precambrian of southern East Greenland: evidence for a Proterozoic granulite-facies event affecting Archaean gneisses. Chem Geol (Isot Geosci Sect) 94:281–291

    Google Scholar 

  • Tegner C, Duncan RA, Bernstein S, Brooks CK, Bird DK, Storey M (1998a) 40Ar−39Ar geochronology of tertiary mafic intrusions along the East Greenland rifted margin: relation to flood basalts and the Iceland hotspot track. Earth Planet Sci Lett 156:75–88

    Google Scholar 

  • Tegner C, Lesher CE, Larsen LM, Watt WS (1998b) Evidence from the rare-earth-element record of mantle melting for cooling of the Tertiary Iceland plume. Nature 395:591–594

    Google Scholar 

  • Tegner C, Robins B, Reginiussen H, Grundvig S (1999) Assimilation of crustal xenoliths in a basaltic magma chamber: Sr and Nd isotopic constraints from the Hasvik Layered Intrusion, Norway. J Petrol 40:363–380

    Google Scholar 

  • Thy P (1991) High and low phase equilibria of a mildly alkalic lava from the 1965 Surtsey eruption. Experimental results. Lithos 26:223–243

    Article  CAS  Google Scholar 

  • Ulfbeck D, Baker J, Waight T, Krogstad E (2003) Rapid sample digestion by fusion and chemical separation of Hf for isotopic analysis by MC-ICPMS. Talanta 59:365–373

    Google Scholar 

  • Verhoef J, Roest WR, Macnab R, Arkani-Hamed J (1996) Magnetic anomalies of the Arctic and north Atlantic oceans and adjacent land areas, Geological Survey of Canada Open File 3125, 225 pp.

  • Wager LR (1947) Geological investigations in East Greenland, part IV: the stratigraphy and tectonics of Knus Rasmussens land and the Kangerdlugssuaq region. Medd Grønland 134:1–64

    Google Scholar 

  • Wager LR (1965) The form and internal structure of the alkaline Kangerdlugssuaq intrusion, East Greenland. Miner Mag 34:487–97

    Google Scholar 

  • Wager LR, Deer WA (1938) A dyke swarm and crustal flexure in East Greenland. Geol Mag 75:39–46

    Google Scholar 

  • Waight T, Baker J, Willigers B (2002) Rb isotope dilution analyses by MC-ICPMS using Zr to correct for mass fractionation: towards improved Rb–Sr geochronology? Chem Geol 186:99–116

    Article  CAS  Google Scholar 

  • Watson EB (1976) Two-liquid partition coefficients: experimental data and geochemical implications. Contrib Mineral Petrol 56:119–134

    Article  Google Scholar 

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Acknowledgements

This work was carried out as part of M. S. Riishuus’ Ph.D. project financed by the Science Faculty at the University of Aarhus. Additional financial support was provided by the Danish National Research Foundation through support of the Danish Lithosphere Centre. We would like to thank Kathryn Goodenough and Ian Coulson for their constructive reviews that helped to focus the manuscript. Joel A. Baker and David G. Ulfbeck are thanked for help and technical support with the radiogenic isotope analyses, and Simon Poulson and Greg Arehart for producing the oxygen isotope analyses. Sidsel Grundvig, Ingrid Aaes and Jette Villesen are thanked for their help and technical support with the electron microprobe analyses and thin section preparation.

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  1. Department of Earth Sciences, University of Aarhus, 8000, Århus C, Denmark

    M. S. Riishuus, C. Tegner & J. R. Wilson

  2. Danish Lithosphere Centre, Øster Voldgade 10, 1350, Copenhagen K, Denmark

    M. S. Riishuus, D. W. Peate, C. K. Brooks & T. E. Waight

  3. Department of Geoscience, University of Iowa, 121 Trowbridge Hall, Iowa City, IA, 52242, USA

    D. W. Peate

  4. Geological Institute, University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark

    C. K. Brooks & T. E. Waight

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Riishuus, M.S., Peate, D.W., Tegner, C. et al. Petrogenesis of syenites at a rifted continental margin: origin, contamination and interaction of alkaline mafic and felsic magmas in the Astrophyllite Bay Complex, East Greenland. Contrib Mineral Petrol 149, 350–371 (2005). https://doi.org/10.1007/s00410-005-0655-x

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