Preferred Orientation and Velocity Anisotropy in Marine Clay-Bearing Calcareous Sediments

  • David K. O’Brien
  • Murli H. Manghnani
  • Jane S. Tribble
  • H.-R. Wenk
Part of the Frontiers in Sedimentary Geology book series (SEDIMENTARY)


In order to better understand the role of preferred orientation of calcite in the compressional velocity (V p ) anisotropy of calcareous marine sediments, ultrasonic V p and x-ray pole figure goniometry measurements were made on selected laminated calcareous claystones, laminated clay-bearing limestones, and nonlaminated limestones from various DSDP sites. Although all samples exhibit V p anisotropy (up to 20%), none exhibit calcite-preferred orientation. Thus, V p anisotropy in these calcareous sediments is not caused by calcite-preferred orientation, in agreement with findings of other researchers. Pole figures and thin section observations of the laminated carbonate samples indicate that poles to (001) of kaolinite and illite are strongly aligned normal to bedding. Clay-preferred orientation is probably responsible for some of the observed V p anisotropy. The V p anisotropy in calcareous claystones is found to be correlated to calcite content, in contrast to the relation found by others for pelagic chalks and limestones, suggesting a dependence upon lithology. Most of the anisotropy in laminated calcareous claystones appears to be controlled by flat pores oriented parallel to bedding, which could slow acoustic waves traveling perpendicular to bedding. Pelagic chalks and limestones tend to have irregularly shaped pores that do not affect anisotropy in the same way as in calcareous claystones.


Prefer Orientation Pole Figure Ocean Drilling Program Calcite Content Velocity Anisotropy 


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  1. Bachman, R.T., 1979. Acoustic anisotropy in marine sediments and sedimentary rocks. Journal of Geophysical Research, v. 84, p. 7661–7663.Google Scholar
  2. Backus, G.E., 1962. Long-wave elastic anisotropy produced by horizontal layering. Journal of Geophysical Research, v. 67, p. 4427–4440.CrossRefGoogle Scholar
  3. Bamford, D. and S. Crampin, 1977. Seismic anisotropy—the state of the art. Geophysical Journal of the Royal Astronomical Society, v. 49, p. 1–8.CrossRefGoogle Scholar
  4. Banthia, B.S., M.S. King, and I. Fatt, 1965. Ultrasonic shear-wave velocities in rocks subjected to simulated overburden pressure and internal pore pressure. Geophysics, v. 30, p. 117–121.CrossRefGoogle Scholar
  5. Carlson, R.L. and N.I. Christensen, 1979. Velocity anisotropy in semi-indurated calcareous deep sea sediments. Journal of Geophysical Research, v. 84, p. 205–211.CrossRefGoogle Scholar
  6. Carlson, R.L., C.H. Schaftenaar, and R.P. Moore, 1983. Causes of compressional-wave anisotropy in calcareous sediments from the Rio Grande Rise. In: Barker, P.F., R.L. Carlson, D.A. Johnson, et al., Initial Reports of the Deep Sea Drilling Project, 72. U.S. Government Printing Office, Washington, DC, p. 565–576.Google Scholar
  7. Carlson, R.L., A.F. Ganhi, and K.R. Snow, 1986. Empirical reflection travel time versus depth and velocity versus depth functions for the deep-sea sediment column. Journal of Geophysical Research, v. 91, p. 8249–8266.CrossRefGoogle Scholar
  8. Christensen, N.I., D.M. Fountain, and R.J. Stewart, 1973. Oceanic crustal basement: A comparison of seismic properties of DSDP basalts and consolidated sediments. Marine Geology, v. 15, p. 215–226.CrossRefGoogle Scholar
  9. Davis, E.E. and R.M. Clowes, 1986. High velocities and seismic anisotropy in Pleistocene turbidites off Western Canada. Geophysical Journal of the Royal Astronomical Society, v. 84, p. 381–399.CrossRefGoogle Scholar
  10. Fryer, G.J., 1986. Transverse isotropy and the thickness of layer 2A (abstract). EOS Transactions, American Geophysical Union, v. 67, p. 1083.Google Scholar
  11. Fryer, G.J., D.J. Miller, and P.A. Berge, 1989. Seismic anisotropy and age-dependent structure of the upper oceanic crust. In: Sinton, J.M. (ed.), Evolution of Mid-Oceanic Ridges. Geophysical Monograph 57, American Geophysical Union, Washington, DC, p. 1–8.CrossRefGoogle Scholar
  12. Gardner, G.H.F., M.R.J. Wyllie, and D.M. Droschak, 1965. Hysteresis in the velocity-pressure characteristics of rocks. Geophysics, v. 30, p. 111–116.CrossRefGoogle Scholar
  13. Kern, H., 1974. Gefugeregelung und elastiche anisotropie eines marmors. Contributions to Mineralogy.and Petrology, v. 43, p. 47–54.CrossRefGoogle Scholar
  14. Kim, D.-C., K.W. Katahara, M.H. Manghnani, and S.O. Schlanger, 1983. Velocity and attenuation anisotropy in deep-sea carbonate sediments. Journal of Geophysical Research, v. 88, p. 2337–2343.CrossRefGoogle Scholar
  15. Kim, D.-C., M.H. Manghnani, and S.O. Schlanger, 1985. The role of diagenesis in the development of physical properties of deep-sea carbonate sediments. Marine Geology, v. 69, p. 69–91.CrossRefGoogle Scholar
  16. Mann, U. and G. Muller, 1979. X-ray mineralogy of Deep Sea Drilling Project Legs 51 through 53, Western North Atlantic. In: Donnelly, T., J. Francheteau, W. Bryan, P. Robinson, M. Flowers, M. Salisbury, et al., Initial Reports of the Deep Sea Drilling Project, 51–53 pt. 2. U.S. Government Printing Office, Washington, DC, p. 721–729.Google Scholar
  17. Milholland, P., M.H. Manghnani, S.O. Schlanger, and G.H. Sutton, 1980. Geoacoustic modeling of deep-sea carbonate sediments. Journal of the Acoustical Society of America, v. 68, p. 1351–1360.CrossRefGoogle Scholar
  18. O’Brien, D.K., 1985. Strain estimation and sense of shear determination in phyllonites and ultramylonites based on phyllosilicate preferred orientation. Unpublished M.S. thesis, University of California, Berkeley, 118 p.Google Scholar
  19. O’Brien, D.K. and M.H. Manghnani, 1992. Physical properties of ODP Site 762: a comparison of shipboard and shore-based results. In: Haq, B.U., U. von Rad, S. O’Connell, et al., Proceedings of the Ocean Drilling Program, Scientific Results, 122. Ocean Drilling Program, College Station, Texas, p. 349–362.Google Scholar
  20. O’Brien, D.K., M.H. Manghnani, and J.S. Tribble, 1989. Irregular trends of physical properties in homogeneous clay-rich sediments of DSDP Leg 87 Hole 584, midslope terrace in the Japan trench. Marine Geology, v. 87, p. 183–194.CrossRefGoogle Scholar
  21. O’Brien, D.K., H.-R. Wenk, L. Ratschbacher, and Z. You, 1987. Preferred orientation of phyllosilicates in phyllonites and ultramylonites. Journal of Structural Geology, v. 9, p. 719–730.CrossRefGoogle Scholar
  22. Peselnick, L. and R.A. Robie, 1963. Elastic constants of calcite. Journal of Applied Physics, v. 34, p. 2494–2495.CrossRefGoogle Scholar
  23. Postma, G.W., 1955. Wave propagation in a stratified medium. Geophysics, v. 20, p. 780–806.CrossRefGoogle Scholar
  24. Schaftenaar, C.H. and R.L. Carlson, 1984. Calcite fabric and acoustic anisotropy in deep-sea carbonates. Journal of Geophysical Research, v. 89, p. 503–510.CrossRefGoogle Scholar
  25. Schultz, L.G., 1964. Quantitative interpretation of mineralogical composition from x-ray and chemical data for the Pierre Shale. United States Geological Survey Professional Paper 391-C, p. 1–31.Google Scholar
  26. Shipboard Scientific Party, 1987. Site 603. In: van Hinte, J.E., S.W. Wise, Jr., et al., Initial Reports of the Deep Sea Drilling Project, 93. U.S. Government Printing Office, Washington, DC, p. 25–276.Google Scholar
  27. Shipboard Scientific Party, 1990. Site 762. In: Haq, B.U., U. von Rad, S. O’Connell, et al., Proceedings of the Ocean Drilling Program, Initial Reports, 122. Ocean Drilling Program, College Station, Texas, p. 213–288.Google Scholar
  28. Todd, T. and G. Simmons, 1972. Effect of pore pressure on the velocity of compressional waves in low-porosity rocks. Journal of Geophysical Research, v. 77, p. 3731–3743.CrossRefGoogle Scholar
  29. Turner, F.J., D.T. Griggs, R.H. Clark, and R. Dixon, 1956. Deformation of Yule marble, Part VII. Development of oriented fabrics at 300° to 500°C. Geological Society of America Bulletin, v. 67, p. 1259–1294.CrossRefGoogle Scholar
  30. Wenk, H.-R., 1985. Measurement of pole figures. In: Wenk, H.-R. (ed.), Preferred orientation in deformed metals and rocks: an introduction to modern texture analysis. Academic Press, Orlando, FL, p. 11–47.Google Scholar
  31. Wenk, H.-R., C.S. Venkitasuramanyan, and D.W. Baker, 1973. Preferred orientation in experimentally deformed limestone. Contributions to Mineralogy and Petrology, v. 38, p. 81–114.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag New York, Inc. 1993

Authors and Affiliations

  • David K. O’Brien
  • Murli H. Manghnani
  • Jane S. Tribble
  • H.-R. Wenk

There are no affiliations available

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