A Large Soft-Sediment Fold in the Lilloise Intrusion, East Greenland

  • P. E. Brown
  • A. D. Chambers
  • S. M. Becker
Part of the NATO ASI Series book series (ASIC, volume 196)


A large fold structure in the upper part of the Lilloise layered intrusion provides evidence of the existence of pore liquid through a thickness of some 300 m of layered cumulate rocks at the time of its formation. The Lilloise magma fractionated from peridotitic through gabbroic layered cumulates to the stage of producing dioritic plagioclase-amphibole cumulates. At this point massive cauldron subsidence of the whole intrusion occurred while the dioritic cumulates were still in the process of formation, resulting in a large soft-sediment type of fold structure.


Layered Rock Contrib Mineral Petrol Layered Intrusion Magmatic Water Cryptic Variation 
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  1. Brooks C K, Nielsen T F D (1982) The Phanerozoic development of the Kangerdlugssuaq area, East Greenland. Meddr GrOnland, Geosci 9, 3–27Google Scholar
  2. Brown P E (1973) A layered plutonic complex of alkali basalt parentage: The Lilloise intrusion, East Greenland. J geol Soc Lond 129, 405–418CrossRefGoogle Scholar
  3. Brown P E, Brown R. D, Chambers A D, Soper N J (1978) Fractionation and assimilation in the Borgtinderne syenite, East Greenland. Contrib Mineral Petrol 67, 25–34CrossRefGoogle Scholar
  4. Brown P E, Tocher F E, Chambers A D (1982) Amphiboles in the Lilloise intrusion, East Greenland. Miner Mag 45, 47–54CrossRefGoogle Scholar
  5. Faithful J W (1985) The lower Eastern layered series of Rhum. Geol Mag 122, 459–468CrossRefGoogle Scholar
  6. Gibb F G F (1976) Ultrabasic rocks of Rhum and Skye: the nature of the parent magma. J geol Soc Pm Mem 80 Google Scholar
  7. Hess H H (1960) Stillwater Igneous Complex, Montana, a Quantitative Mineralogical Study. Geol Soc An Mem 80 Google Scholar
  8. Irvine T N (1980) Magmatic infiltration metasanatism, double-diffusive fractional crystallisation and adcumulus growth in the Muskox and other layered intrusions. In Physics of Magmatic Processes (ed. Irvine T N ) 325–383 Princeton University PressGoogle Scholar
  9. Irvine T N (1982) Terminology for layered intrusions. J Petrol 23, 127–162CrossRefGoogle Scholar
  10. Jackson E D (1961) Primary textures and mineral associations in the ultramafic zone of the Stillwater complex, Montana. U S Geol Sury Prof Pap 358 Google Scholar
  11. Kitchen D E (1985) The parental magma on Rhum: evidence from alkaline segregations and veins in the peridotites from Salisbury’s Dam. Geol Mag 122, 529–537CrossRefGoogle Scholar
  12. Larsen L M, Watt W S (1985) Episodic volcanise during break-up of the North Atlantic: evidence from the East Greenland plateau basalts. Earth Planet Sci Lett 73, 105–116CrossRefGoogle Scholar
  13. Leterrier J, Maury R C, Thonon P, Girard D, Marchai M (1982) Clinopyroxene composition as a method of identification of the magmatic affinities of palaeo-volcanic series. Earth Planet Sci Lett 59, 139–154CrossRefGoogle Scholar
  14. McKenzie D P (1984) The generation and compaction of partially molten rock. J Petrol 25, 713–765CrossRefGoogle Scholar
  15. McKenzie D P (1985) The contraction of magma from the crust and mantle. Earth Planet Sci Lett 74, 81–91CrossRefGoogle Scholar
  16. Mathews D W (1976) Post-cumulus disruption of the Lilloise Intrusion, East Greenland. Geol Mag 113, 287–295CrossRefGoogle Scholar
  17. Sheppard S M F, Brown P E, Chambers A D (1977) The Lilloise Intrusion, East Greenland: hydrogen isotope evidence for the efflux of magmatic water into the contact metamorphic aureole. Contrib Mineral Petrol 63, 129–147CrossRefGoogle Scholar
  18. Soper N J, Higgins A C, Downie C, Mathews b W, Brown P E (1976) Late Cretaceous-Early Tertiary stratigraphy of the Kangerdlugssuaq area, East Greenland and the age of opening of the north-east Atlantic. J geol Soc Lond 132, 85–104CrossRefGoogle Scholar
  19. Sparks R S J, Huppert H E (1984) Density changes during the fractional crystallisation of basaltic magmas: fluid dynamic implications. Contrib Mineral Petrol 85, 300–9CrossRefGoogle Scholar
  20. Sparks R S J, Huppert H E, Kerr R C, McKenzie D P, Tait S R (1985) Post-cumulus processes in layered intrusions. Geol Mag 122, 555–568CrossRefGoogle Scholar
  21. Tait S R (1985) Fluid dynamic and geochemical evolution of cyclic unit 10 from the Eastern Layered Series of the Rhum Intrusion, Northwest Scotland. Geol Mag 122, 469–484CrossRefGoogle Scholar
  22. Wadsworth W J (1985) Terminology of postcumulus processes and products in the Rhum layered intrusion. Geol Mag 122, 549–554CrossRefGoogle Scholar
  23. Wager L R (1934) Geological investigations in East Greenland. Part 1. General geology from Angmagssalik to Kap Dolton. Meddr GrOnland 105 (2), 46 ppGoogle Scholar
  24. Wager L R, Brown G M, Wadsworth W J (1960) Types of igneous cumulates. J. Petrol 1, 73–85.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1987

Authors and Affiliations

  • P. E. Brown
    • 1
  • A. D. Chambers
    • 2
  • S. M. Becker
    • 3
  1. 1.Department of GeologyThe UniversityAberdeenUK
  2. 2.Department of GeologyThe UniversityAstonUK
  3. 3.Department of Adult EducationThe UniversityLeicesterUK

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