The structure and geochemistry of the gabbro zone of the Annieopsquotch ophiolite, Newfoundland: Implications for lower crustal accretion at spreading ridges

Earth and Planetary Science Letters

Volumn 229, Issue 1-2, 2004, Pages 105-123

  Lissenberg, C Johan ^a   Bedard J H ^b   van Staal, C R ^b  

^a UNIVERSITY OF OTTAWA   (Canada)

^b GEOLOGICAL SURVEY OF CANADA   (Canada)

Author keywords

Cumulates; Gabbros; Lower crust; Magma chambers; Ophiolite; Sills; Spreading ridges

Indexed keywords

CRUSTAL UNITS; TRACE ELEMENT MODELING;

BASALT; COMPUTER SIMULATION; GRAIN SIZE AND SHAPE; ROCKS; STRUCTURAL GEOLOGY;

GEOCHEMISTRY;

GABBRO; MAGMA CHAMBER; MAGMA CHEMISTRY; OPHIOLITE; SPREADING CENTER;

CANADA; NEWFOUNDLAND; NEWFOUNDLAND AND LABRADOR; NORTH AMERICA; WESTERN HEMISPHERE; WORLD;

EID: 10944272039     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2004.10.029     Document Type: Article

References (66)

1. J.S. Pallister C.A. Hopson Samail ophiolite plutonic suite: Field relations, phase variation and layering and a model of a spreading ridge magma chamber J. Geophys. Res. 86 1981 2593-2644
2. J.D. Smewing Mixing characteristics and compositional differences in mantle-derived melts beneath spreading axes: Evidence from cyclically layered rocks in the ophiolite of North Oman J. Geophys. Res. 86 1981 2645-2660
3. E.E. Vera J.C. Mutter P. Buhl J.A. Orcutt A.J. Harding M.E. Kappus R.S. Detrick T.M. Brocher The structure of 0 to 0.2-m.y.-old oceanic crust at 9 °N on the East Pacific Rise from expanded spread profiles J. Geophys. Res. 95 1990 15,529-15,556
4. J.M. Sinton R.S. Detrick Mid-ocean ridge magma chambers J. Geophys. Res. 97 1992 197-216
5. G.M. Kent A.J. Harding J.A. Orcutt Distribution of magma beneath the East Pacific Rise between the Clipperton Transform and the 9°17′N Deval from forward modeling of common depth point data J. Geophys. Res. 98 1993 13,945-13,969
6. G.R. Dunning T.E. Krogh Geochronology of ophiolites in the Newfoundland Appalachians Can. J. Earth Sci. 22 1985 1659-1670
7. C.J. Lissenberg C.R. van Staal The relationships between the Annieopsqoutch Ophiolite Belt, the Dashwoods Block and the Notre Dame arc in Southwestern Newfoundland, Current Research, Newfoundland Department of energy and Mines Geol. Surv. Rep. 02-1 2002 145-153
8. C.J. Lissenberg J.H. Bédard C.R. van Staal V. McNicoll The origin and tectonic evolution of the Annieopsquotch ophiolite belt, southwest Newfoundland Geol. Soc. Am. Program Abstr. 35-3 2003 34
9. C.R. van Staal C.J. Lissenberg S. Pehrsson A. Zagorevski P. Valverde-Vaquero R.K. Herd V. McNicoll J. Whalen Geology, Puddle Pond, Newfoundland (NTS 12-A/05) Open File-Geol. Surv. Can. 1664 (scale 1:50,000; in press)
10. H. Williams Temporal and spatial divisions H. Williams Geology of the Appalachian-Caledonian Orogen in Canada and Greenland Geology of Canada vol. 6 1995 Geological Survey of Canada Ottawa 23-44
11. J.W.F. Waldron C.R. van Staal Taconian orogeny and the accretion of the Dashwoods block: A peri-Laurentian microcontinent in the Iapetus ocean Geology 29 2001 811-814
12. G.R. Dunning, The geology, geochemistry, geochronology and regional setting of the Annieopsquotch Complex and related rocks of Southwest Newfoundland, PhD thesis, Memorial University of Newfoundland, St. John's, 1984.
13. H.J.B. Dick J. Lin H. Schouten An ultraslow-spreading class of ocean ridge Nature 426 2003 405-412
14. J.A. Karson Internal structure of oceanic lithosphere: A perspective from tectonic windows W.R. Buck Faulting and Magmatism at Mid-Ocean Ridges Geophys. Monogr. Ser. vol. 106 1998 AGU Washington, DC 177-218
15. G.D. Harper Tectonics of slow spreading mid-ocean ridges and consequences of a variable depth to the brittle/ductile transition Tectonics 4 1985 395-409
16. Y. Lagabrielle D. Bideau M. Cannat J.A. Karson C. Mével Ultramafic-mafic plutonic rock suites exposed along the Mid-Atlantic Ridge (10 °N-30 °N). Symmetrical-asymmetrical distribution and implications for seafloor spreading processes W.R. Buck Faulting and Magmatism at Mid-Ocean Ridges Geophys. Monogr. Ser. vol. 106 1998 AGU Washington, DC 153-176
17. M. Cannat C. Mével D. Stakes Normal ductile shearzones at an oceanic spreading ridge: Tectonic evolution of Site 735 gabbros (Southwest Indian ocean) R.P. Von Herzen Proc. Ocean Drill. Prog., Sci. Results vol. 118 1991 Ocean Drilling Program College Station, TX 415-429
18. J.A. Karson E.M. Klein S.D. Hurst C.E. Lee P.A. Rivizzigno D. Curewitz A.R. Morris et al. Structure of uppermost fast-spread oceanic crust exposed at the Hess Deep Rift: Implications for subaxial processes at the East Pacific Rise Geochem. Geophys. Geosyst. 3 2002 DOI:10.1029/2001GC000155
19. J.A. Karson M.A. Tivey J.R. Delaney Internal structure of uppermost oceanic crust along the Western Blanco Transform Scarp: Implications for subaxial accretion and deformation at the Juan de Fuca Ridge J. Geophys. Res. 107 2002 2181
20. D.R. Bohnenstiehl S.M. Carbotte Faulting patterns near 19°30′S on the East Pacific Rise: Fault formation and growth at a superfast spreading center Geochem. Geophys. Geosyst. 2 2001 DOI:10.1029/2001GC000156
21. J.H. Bédard Cumulate recycling and crustal evolution in the Bay of Island ophiolite J. Geol. 99 1990 225-249
22. J.H. Bédard Oceanic crust as a reactive filter: Synkinematic intrusion, hybridization, and assimilation in an ophiolitic magma chamber, western Newfoundland Geology 21 1993 77-80
23. S.C. Singh G.M. Kent J.S. Collier A.J. Harding J.A. Orcutt Melt to mush variations in crustal magma properties along the ridge crest at the Southern East Pacific Rise Nature 394 1998 874-878
24. A.J. Harding J.A. Orcutt M.E. Kappus E.E. Vera J.C. Mutter P. Buhl R.S. Detrick T.M. Brocher Structure of young oceanic crust at 13 °N on the East Pacific Rise from expanding spread profiles J. Geophys. Res. 94 1989 12,163-12,196
25. W.C. Crawford S.C. Webb J.A. Hildebrand Constraints on melt in the lower crust and Moho at the East Pacific Rise, 9°48′N, using seafloor compliance measurements J. Geophys. Res. 104 1999 2923-2939
26. W.C. Crawford S.C. Webb Variations in the distribution of magma in the lower crust and at the Moho beneath the East Pacific Rise at 9°-10 °N Earth Planet. Sci. Lett. 203 2002 117-130
27. R.A. Dunn D.R. Toomey S.C. Solomon Three-dimensional seismic structure and physical properties of the crust and shallow mantle beneath the East Pacific Rise at 9°30′N J. Geophys. Res. 105 2000 23,537-23,555
28. J. Garmany Accumulations of melt at the base of young oceanic crust Nature 340 1989 628-632
29. T.J. Henstock A.W. Woods R.S. White The accretion of oceanic crust by episodic sill intrusion J. Geophys. Res. 98 1993 4143-4161
30. J. Phipps Morgan Y.J. Chen The genesis of oceanic crust: Magma injection, hydrothermal circulation, and crustal flow J. Geophys. Res. 98 1993 6283-6297
31. J.E. Quick R.P. Denlinger Ductile deformation and the origin of layered gabbro in ophiolites J. Geophys. Res. 98 1993 14,015-14,027
32. K. Benn B. Allard Preferred mineral orientations related to magmatic flow in ophiolite layered gabbros J. Petrol. 30 1989 925-946
33. A. Nicolas Kinematics in magmatic rocks with special reference to gabbros J. Petrol. 33 1992 891-915
34. J.H. Bédard A. Berclaz R. Hébert V. Varfalvy Syntexis and the genesis of the oceanic crust Y. Dilek Ophiolites and Oceanic Crust: New Insights from Field Studies and the Ocean Drilling Program Spec. Pap. Geol. Soc. Am. 349 2000 105-119
35. F. Boudier A. Nicolas B. Ildefonse Magma chambers in the Oman ophiolite: fed from the top and the bottom Earth Planet. Sci. Lett. 144 1996 239-250
36. P.B. Kelemen K. Koga N. Shimizu Geochemistry of gabbro sills in the crust/mantle transition zone of the Oman ophiolite: Implications for the origin of the oceanic lower crust Earth Planet. Sci. Lett. 146 1997 475-488
37. A. Nicolas F. Boudier B. Ildefonse E. Ball Accretion of Oman and United Arab Emirates ophiolite-discussion of a new structural map Mar. Geophys. Res. 21 2000 147-179
38. L.A. Coogan K.M. Gillis C.J. MacLeod G.M. Thompson R. Hékinian Petrology and geochemistry of the lower ocean crust formed at the East Pacific Rise and exposed at Hess Deep: A synthesis and new results Geochem. Geophys. Geosyst. 3 2002 DOI:10.1029/2001GC000230
39. L.A. Coogan G. Thompson C.J. MacLeod A textural and geochemical investigation of high level gabbros from the Oman ophiolite: implications for the role of the axial magma chamber at fast-spreading ridges Lithos 63 2002 67-82
40. N. Rogers Geochemical database, Red Indian Line project, Central Newfoundland Open File Rep. Geol. Surv. Can. 4605 2004 CD-ROM
41. J.H. Bédard A procedure for calculating the equilibrium distribution of trace elements among the minerals of cumulate rocks, and the concentration of trace elements in the coexisting liquids Chem. Geol. 118 1994 143-153
42. J.H. Bédard, Partitioning coefficients between olivine and silicate melts, Lithos, in press.
43. J.H. Natland P.S. Meyer H.J.B. Dick S.H. Bloomer et al. Magmatic oxides and sulfides in gabbroic rocks from Hole 735B and the later development of the liquid line of descent in: R.P. Von Herzen et al., (Eds.), Proc. Ocean Drill. Prog., Sci. Results vol. 118 1991 Ocean Drilling Program College Station, TX 75-111
44. S.-S. Sun W.F. McDonough Chemical and isotopic systematics of oceanic basalts: Implications for mantle compositions and processes in: A.D. Saunders M.J. Norry (Eds.), Magmatism in the Ocean Basins Spec. Publ. Geol. Soc. London 42 1989 313-345
45. J.H. Natland H.J.B. Dick Melt migration through high level gabbroic cumulates of the East Pacific Rise at Hes Deep: The origin of magma lenses and the deep crustal structure of fast-spreading ridges C. Mével K.M. Gillis J.F. Allan P.S. Meyer Proc. Ocean Drill. Prog., Sci. Results vol. 147 1996 Ocean Drilling Program College Station, TX 21-58
46. J.H. Bédard P. Pagé J. Lissenberg Melt transfer mechanisms in the lower ophiolitic crust: Examples from the Bay of Islands, Thetford-Mines, Betts Cove and Annieopsquotch EOS Trans. AGU 84 2003 F1540
47. J. Korenaga P.B. Kelemen Origin of gabbro sills in the Moho transition zone of the Oman ophiolite: Implications for magma transport in the lower oceanic crust J. Geophys. Res. 102 1997 27,729-27,749
48. P.B. Kelemen E. Aharonov Periodic formation of magma fractures and generation of layered gabbros in the lower crust beneath oceanic spreading ridges W.R. Buck Faulting and Magmatism at Mid-Ocean Ridges Geophys. Monogr. Ser. vol. 106 1998 AGU Washington, DC 267-289
49. J. Cook J.E. Gordon A mechanism for the control of crack propagation in all-brittle systems Proc. R. Soc. Lond. Ser. A 282 1964 508-520
50. J.H. Bédard R. Hébert The lower crust of the Bay of Islands ophiolite, Canada: Petrology, mineralogy, and the importance of syntexis in magmatic differentiation in ophiolites and at ocean ridges J. Geophys. Res. 101 1996 25,105-25,124
51. J.D. Clemens C.K. Mawer Granitic magma transport by fracture propagation Tectonophysics 204 1992 339-360
52. M.P. Ryan Neutral-buoyancy controlled magma transport and storage in mid ocean ridge magma resevoirs and their sheeted dyke complex: A summary of basic relationships in: M.P. Ryan (Ed.) Magmatic Systems 1994 Academic San Diego, CA 97-138
53. F. Einaudi M. Godard P. Pezard J.-J. Cochemé C. Coulon T. Brewer P. Harvey Magmatic cycles and formation of the upper oceanic crust at spreading centers: Geochemical study of a continuous extrusive sequence in the Oman ophiolite Geochem. Geophys. Geosyst. 4 2003 8608
54. G.L. Christeson G.M. Kent G.M. Purdy R.S. Detrick Extrusive thickness variability at the East Pacific Rise, 9°-10 °N: Constraints from seismic techniques J. Geophys. Res. 101 1996 2859-2873
55. J.H. Natland H.J.B. Dick Formation of the lower ocean crust and the crystallization of gabbroic cumulates at a very slow spreading ridge J. Volcanol. Geotherm. Res. 110 2001 191-233
56. Y.J. Chen Thermal effects of gabbro accretion from a deeper second melt lens at the fast spreading East Pacific Rise J. Geophys. Res. 106 2001 8581-8588
57. C.E. Manning P.E. Weston K.I. Mahon Rapid high temperature metamorphism of the East Pacific Rise gabbros from Hess Deep Earth Planet. Sci. Lett. 144 1996 123-132
58. A. Nicolas D. Mainprice F. Boudier High-temperature seawater circulation throughout crust of oceanic ridges: A model derived from the Oman ophiolites J. Geophys. Res. 108 2003 2371
59. J. Koepke S.T. Feig J.E. Snow A new model for the late-stage magmatic evolution of oceanic gabbros EGU Geophys. Res. Abstr. 6 2004 A-3057
60. J. Koepke S.T. Feig J. Snow M. Freise Petrogenesis of oceanic plagiogranites by partial melting of gabbros: An experimental study Contrib. Mineral. Petrol. 146 2004 414-432
61. D.K. Bird C.E. Manning N.M. Rose Hydrothermal alteration of Tertiary layered gabbros, East Greenland Am. J. Sci. 288 1988 405-457
62. C. Lécuyer B. Reynard High temperature alteration of oceanic gabbros by seawater (Hess Deep, Ocean Drilling Program Leg 147): evidence from oxygen isotopes and elemental fluxes J. Geophys. Res. 101 1996 15,883-15,897
63. D.S. Stakes H.P. Taylor The northern Samail Ophiolite: An oxygen isotope, microprobe, and field study J. Geophys. Res. 97 1992 7043-7080
64. T.M. McCollom E.L. Shock Fluid-rock interactions in the lower oceanic crust: Thermodynamic models of hydrothermal alteration J. Geophys. Res. 103 1998 547-575
65. A.S.M. Cherkaoui W.S.D. Wilcock R.A. Dunn D.R. Toomey A numerical model of hydrothermal cooling and crustal accretion at a fast spreading mid-ocean ridge Geochem. Geophys. Geosyst. 4 2003 8616
66. F. Einaudi M. Godard P. Pezard J.-J. Cochemé C. Coulon T. Brewer P. Harvey Magmatic cycles and formation of the upper oceanic crust at spreading centers: Geochemical study of a continuous extrusive sequence in the Oman ophiolite Geochem. Geophys. Geosyst. 4 2003 8608