Magnetic anisotropy produced by magma flow: Theoretical model and experimental data from Ferrar dolerite sills (Antarctica)

Geophysical Journal International

Volumn 128, Issue 1, 1997, Pages 230-240

  Dragoni, Michele ^a   Lanza, Roberto ^b   Tallarico, Andrea ^c  

^a UNIVERSITY OF BARI   (Italy)

^b UNIVERSITY OF TURIN   (Italy)

^c UNIVERSITY OF BOLOGNA   (Italy)

Author keywords

Anisotropy; Antarctica; Magma flow; Magnetic susceptibility

Indexed keywords

ANISOTROPY OF MAGNETIC SUSCEPTIBILITY; DYKE; LAVA FLOW; MAGNETIC FABRIC; SILL;

ANTARCTICA, VICTORIA LAND;

EID: 0030923230     PISSN: 0956540X     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1365-246X.1997.tb04083.x     Document Type: Article

References (34)

1. Archanjo, J.A., Launeau, P. & Bouchez J.L., 1995. Magnetic fabric vs. magnetite and biotite shape fabrics of the magnetite-bearing granite pluton of Gameleiras, Phys. Earth planet. Inter., 89, 63-75.
2. Cadman, A.C., Park, R.G., Tarney, J. & Halls, H.C., 1992. Significance of anisotropy of magnetic susceptibility fabrics in Proterozoic mafic dykes, Hopedale Block, Labrador, Tectonophysics, 207, 303-314.
3. Delisle, G. & Fromm, K., 1989. Further evidence for a Cretaceous thermal event in North Victoria Land, Geol. Jb., E, 38, 143-151.
4. Dragoni, M., Piombo, A. & Tallarico, A., 1995. A model for the formation of lava tubes by roofing over a channel, J. geophys. Res., 100, 8435-8447.
5. Ellwood, B.B., 1975. Analysis of emplacement mode in basalt from deep sea drilling project holes 319a and 321 using anisotropy of magnetic susceptibility, J. geophys. Res., 80, 4805-4808.
6. Ellwood, B.B., 1978. Flow and emplacement direction determined for selected basaltic bodies using magnetic susceptibility anisotropy of magnetic susceptibility measurements, Earth, planet. Sci. Lett., 41, 254-264.
7. Faure, G. & Mensing, T.M., 1993. K-Ar dates and paleomagnetic evidence for Cretaceous alteration of Mesozoic basaltic lava flows. Mesa Range, Northern Victoria Land, Antarctica, Chem. Geol., 109, 305-315.
8. Freeman, B., 1985. The motion of rigid ellipsoidal particles in slow flows, Tectonophysics, 113, 163-183.
9. Gay, N.C., 1967. Pure shear and simple shear deformation of inhomogeneous viscous fluids. 1. Theory, Tectonophysics, 5, 211-234.
10. Goldstein, H., 1980. Classical Mechanics, Addison-Wesley, London.
11. Halvorsen, E., 1974. The magnetic fabric of some dolerite intrusions, northeast Spitsbergen; implications for the emplacement, Earth planet. Sci. Lett., 21, 127-133.
12. Hrouda, F., 1982. Magnetic anisotropy of rocks and its application in geology and geophysics, Geophys. Surv., 5, 37-82.
13. Hrouda, F., 1993. Theoretical models of magnetic anisotropy to strain relationship revisited, Phys. Earth planet. Inter., 77, 237-249.
14. Jeffery, G.B., 1922, The motion of ellipsoidal particles immersed in a viscous fluid, Proc. R. Soc. Lond., A, 102, 161-179.
15. Jelinek, V., 1981. Characterization of the magnetic fabric of rocks. Tectonophysics, 76, 63-67.
16. Johnson, A.M., 1970. Physical Processes in Geology, Freeman Cooper, San Francisco, CA.
17. Khan, M.A., 1962. The anisotropy of magnetic susceptibility of some igneous and metamorphic rocks, J. geophys. Res., 67, 2873-2885.
18. Knight, M.D. & Walker, G.P.L., 1988. Magma flow direction in dykes of the Koolau complex, Oahu, determined from magnetic fabric studies, J. geophys. Res., 93, 4301-4319.
19. Kolofíková, O., 1976. Geological interpretation of measurement of magnetic properties of basalts. An example of the Chbrisky les lava flow of the Velky Roudny volcano (Nízkí Jeseník Mts.), Cas. Miner. Geol., 21, 287-348.
20. Lanza, R. & Zanella, E, 1993. Palaeomagnetism of the Ferrar dolerite in the northern Prince Albert Mountains (Victoria Land, Antarctica), Geophys. J. Int., 114, 501-511.
21. Malvern, L.E., 1969, Introduction to the Mechanics of a Continuous Medium, Prentice-Halla, Englewood Cliffs, NJ.
22. Osborn, J.A., 1945. Demagnetizing factors of the general ellipsoid, Phys. Rev., 67, 351-357.
23. Park, J.K., Tanczyk, E.I. & Desbarats, A., 1988. Magnetic fabric and its significance in the 1400 Ma Mealy diabase dykes of Labrador, Canada, J. geophys. Res., 93, B11, 13 689-13 704.
24. Puranen, R., Pekkarinen, L.J. & Pesonen, L.J., 1992. Interpretation of magnetic fabrics in the Early Proterozoic diabase dykes of Keuruu, central Finland, Phys. Earth planet. Inter., 72, 68-82.
25. Raposo, M.I.B. & Ernesto, M., 1995. Anisotropy of magnetic susceptibility in the Ponta Grossa dyke swarm (Brazil) and its relationship with magma flow direction, Phys. Earth planet. Inter., 87, 183-196.
26. Reed, L.J. & Tryggvason E., 1974. Preferred orientation of rigid particles in a viscous matrix deformed by pure shear and simple shear, Tectonophysics, 24, 85-98.
27. Rochette, P., Jenatton, L., Dupuy, C., Boudier, F. & Reuber, I., 1991. Diabase dykes emplacement in the Oman Ophiolite: a magnetic fabric study with reference to geochemistry, in Ophiolite Genesis and Evolution of the Oceanic Lithosphere, pp. 55-82, eds Peters, T., Nicolas, A. & Coleman, R., Kluwer Academic, Dordrecht.
28. Sanderson, D.J. & Meneilly, A.W., 1981. Analysis of three-dimensional strain modified uniform distribution: andalusite fabrics from a granite aureole, J. struct. Geol., 3, 109-116.
29. Spiegel, M.R., 1968. Mathematical Handbook, McGraw-Hill, New York, NY.
30. Stacey, F.D., 1960a. Magnetic anisotropy of dispersed powders, Aust. J. Phys., 13, 196-201.
31. Stacey, F.D., 1960b. Magnetic anisotropy of igneous rocks, J. geophys. Res., 67, 2429-2462.
32. Staudigel, H., Gee, J., Tauxe, L. & Varga, R.J., 1992. Shallow intrusive directions of sheeted dykes in the Troodos ophiolite: Anisotropy of magnetic susceptibility and structural data, Geology, 20 841-844.
33. Stump, E.S. & Fitzgerald, P.G., 1992. Episodic uplift of the Transantarctic Mountains, Geology, 20, 161-164.
34. Tarling, D.H. & Hrouda F., 1993. The Magnetic Anisotropy of Rocks, Chapman & Hall, London.