The crustal structure of central East Greenland - II: From the Precambrian shield to the recent mid-oceanic ridges

Geophysical Journal International

Volumn 160, Issue 2, 2005, Pages 753-760

  Schmidt Aursch, Mechita C ^a   Jokat, Wilfried ^a  

^a ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

Author keywords

Continental crust; Crustal structure; East Greenland; Gravity; Oceanic lithosphere

Indexed keywords

CRUSTAL STRUCTURE; DENSITY; MODELING; SEISMIC REFRACTION; SEISMIC VELOCITY; THERMAL STRUCTURE; VELOCITY STRUCTURE;

ARCTIC; ARCTIC AND ANTARCTIC; EAST GREENLAND; GREENLAND; WORLD;

EID: 15044359731     PISSN: 0956540X     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2005.02515.x     Document Type: Article

References (45)

1. Bannister, S., Ruud, B. & Husebye, E., 1991. Tomographic estimates of sub-Moho seismic velocities in Fennoscandia and structural implications, Tectonophysics, 189, 37-53.
2. Berckhemer, H., 1990. Grundlagen der Geophysik, Wissenschaftliche Buchgesellschaft, Darmstadt.
3. Berzin, R., Oncken, O., Knapp, J., Pérez-Estaún, A., Hismatulin, T., Yunosov, N. & Lipilin, A., 1996. Orogenic evolution of the Ural mountains: results from an integrated seismic experiment, Science, 274, 220-221.
4. Breivik, A., Verhoef, J. & Faleide, J., 1999. Effect of thermal contrasts on gravity modeling at passive margins: results from the western Barents Sea, J. geophys. Res., 104(B7), 15 293-15 311.
5. Brozena, J., Chalona, M., Forsberg, R. & Mader, G., 1993. New technology allows remote areas to be probed, EOS, Trans. Am. geophys. Un., 74(2), 18-19.
6. Carbonell, R. et at., 1996. Crustal root beneath the Urals: wide-angle seismic evidence, Science, 274, 222-224.
7. Christensen, N. & Mooney, W., 1995. Seismic velocity structure and composition of the continental crust: a global view, J. geophys. Res. 100(B7), 9761-9788.
8. Dahl-Jensen, T. et al., 2003. Depth to Moho in Greenland: receiver-function analysis suggests two Proterozoic blocks in Greenland, Earth planet. Sci. Lett., 205, 379-393.
9. Durrheim, R. & Mooney, W., 1994. Evolution of the Precambrian lithosphere: seismological and geochemical constraints, J. geophys. Res., 99(B8), 15 359-15 374.
10. Dyrelius, D., 1985. A geophysical perspective of the Scandinavian Caledonides, in The Caledonide Orogen-Scandinavia and Related Areas pp. 185-195, ed. Gee, D. & Sturt, B., John Wiley & Sons, London.
11. Ekholm, S., 1996. A full coverage, high-resolution, topographic model of Greenland computed from a variety of digital elevation data, J. geophys. Res., 101(B10), 21 961-21 972.
12. Escher, J. & Pulvertaft, T., 1995. Geological map of Greenland, 1:2 500 000, Geological Survey of Greenland, Copenhagen.
13. Fechner, N. & Jokat, W., 1996. Seismic refraction investigations on the crustal structure of the western Jameson Land Basin, East Greenland, J. geophys. Res., 101(B7), 15 867-15 881.
14. Forsberg, R., 1991. Gravity measurements in East Greenland 1986-88, Geodetic Division Technical Report No 4, pp. 1-32, Kortog Matrikelstyrelsen, Copenhagen.
15. Forsberg, R. & Kenyon, S., 1994. Evaluation and downward continuation of airborne gravity data-the Greenland example, in Proceedings of the International Symposium on Kinematic Systems in Geodesy, Geomatics and Navigation (KIS-94), Banff, pp. 531-538.
16. Götze, H.-J. & Lahmeyer, B., 1988. Application of three-dimensional interactive modeling in gravity and magnetics, Geophysics, 53 8), 1096-1108.
17. Henriksen, N., Higgins, A., Kalsbeek, F. & Pulvertaft, T., 2000. Greenland from Archaean to Quaternary; descriptive text to the Geological map of Greenland, 1:2 500 000, Geol. Greenland Surv. Bull. 185, 1-93.
18. Hinz, K., Mutter, J., Zehnder, C. & the NGT Study Group, 1987. Symmetric conjugation of continent-ocean boundary structures along the Norwegian and East Greenland Margins, Mar. Petrol. Geol., 4, 166-187.
19. Jakobsson, M., Cherkis, N., Woodward, J., Macnab, R. & Coakley, B., 2000. New grid of Arctic bathymetry aids scientists and mapmakers, EOS, Trans. Am. geophys. Un., 81(9), 89. 93, 96.
20. Jokat, W. et al., 1995. Seismic refraction, in Die Expedition ARKTIS-X/2 mit FS 'Polarstern' 1994, Report on Polar Research 174, ed. Hubberten, H.-W., Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.
21. Jokat, W. et al., 1996. Marine Geophysik, in Die Expedition ARKTIS-VII/3 mit FS 'Polarstern' 1990, Report on Polar Research 189, ed. Miller, H. & Grobe, H., Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.
22. Juhlin, C., Knapp, J., Kashubin, S. & Bliznetsov, M., 1996. Crustal evolution of the Middle Urals based on seismic reflection and refraction data, Tectonophysics, 264, 21-34.
23. Kinck, J., Husebye, E. & Lund, C.-E., 1991. The South Scandinavian crust: structural complexities from seismic reflection and refraction profiling, Tectonophysics, 189, 117-133.
24. Klingelhöfer, F., Géli, L., Matias, L., Steinsland, N. & Mohr, J., 2000. Crustal structure of a super-slow spreading centre: a seismic refraction study of Mohns Ridge, 72°N, Geophys. J. Int., 141, 509-526.
25. Knapp, J., Diaconescu, C., Bader, M., Sokolov, V., Kashubin, S. & Rybalka, A., 1998. Seismic reflection fabrics of continental collision and post-orogenic extension in the Middle Urals, central Russia, Tectonophysics, 288, 115-126.
26. Kodaira, S., Mjelde, R., Gunnarsson, K., Shiobara, H. & Shimamura, H., 1998. Evolution of oceanic crust on the Kolbeinsey Ridge, north of Iceland, over the past 22 Myr, Terra Nova, 10, 27-31.
27. Larsen, H., 1990. The East Greenland Shelf, in The Arctic Ocean Region, The Geology of North America Vol. L, pp. 185-2 10, ed. Grantz, A., Johnson, K. & Sweeney, J., The Geological Society of America, Boulder, CO.
28. Laxon, S. & McAdoo, D., 1998. Satellites provide new insights into polar geophysics, EOS, Trans. Am. geophys. Un., 79(6), 69. 72, 73.
29. Mandler, H. & Jokat, W., 1998. The crustal structure of Central East Greenland: results from combined land-sea seismic refraction experiments, Geophys. J. Int., 135, 63-76.
30. Meissner, R., 1986. The Continental Crust-A Geophysical Approach, International Geophysics Series 34, Academic Press, New York.
31. Mutter, J. & Zehnder, C., 1988. Deep crustal structure and magmatic processes: the inception of seafloor spreading in the Norwegian-Greenland Sea, in Early Tertiary Volcanism and the Opening of the NE Atlantic, Geological Society of London Special Publication 39, pp. 35-48, ed. Morton, A. & Parson, L., The Geological Society, London.
32. Nafe, J. & Drake, C., 1957. Variation with depth in shallow and deep water marine sediments of porosity, density and the velocity of compressional and shear waves, Geophysics, 22, 523-552.
33. Ritzmann, O., Jokat, W., Mjelde, R. & Shimamura, H., 2004. Crustal structure between the Knipovich Ridge and the Van Mijenfjorden (Svalbard), Mar. geophys. Res., 23, 379-401.
34. Schlindwein, V. & Jokat, W., 1999. Structure and evolution of the continental crust of northern east Greenland from integrated geophysical studies, J. geophys. Res., 104(B7), 15 227-15 245.
35. Schlindwein, V. & Jokat, W., 2000. Post-collisional extension of the East Greenland Caledonides: a geophysical perspective, Geophys. J. Int., 140, 559-567.
36. Schlindwein, V. & Meyer, U., 1999. Aeromagnetic study of the continental crust of northeast Greenland, J. geophys. Res., 104(B4), 7527-7537.
37. Schmidt, S., 2000. IGMAS Online Help, http:/ /userpage.fu-berlin.de/~sschmidt/igmas/IGMAS_Manual.html
38. Schmidt-Aursch, M. & Jokat, W., 2005. The crustal structure of central East Greenland-I: From the Caledonian orogen to the Tertiary igneous province, Geophys. J. Int., doi:10.1111 /j.1365-246X.2005.02514.x (this issue).
39. Seibold, E., 1996. The Sea Floor: an Introduction to Marine Geology Springer, Berlin.
40. Theilen, F. & Meissner, R., 1979. A comparison of crustal and upper mantle features in Fennoscandia and the Rhenish Shield, two areas of recent uplift, Tectonophysics, 61, 227-242.
41. Thouvenot, F., Kashubin, S., Poupinet, G., Makovskiy, V, Kashubina, T., Matte, P. & Jenatton, L., 1995. The root of the Urals: evidence from wide-angle reflection seismics, Tectonophysics, 250, 1-13.
42. Weigel, W. et al., 1995. Investigations of the East Greenland continental margin between 70° and 72°N by deep seismic sounding and gravity studies, Mar. geophys. Res., 17, 167-199.
43. Wessel, P. & Smith, W., 1998. New, improved version of Generic Mapping Tools released, EOS, Trans. Am. geophys. Un., 79(47), 579.
44. White, R., McKenzie, D. & O'Nions, R., 1992. Oceanic crustal thickness from seismic measurements and rare earth element inversions, J. geophys. Res., 97(B13), 19 683-19 715.
45. Zandt, G. & Ammon, C., 1995. Continental crust composition constrained by measurements of crustal Poisson's ratio, Nature, 374, 152-154.