Letter | Published:

Bottom-current pathways in the Argentine Basin revealed by mean silt particle size

Naturevolume 321pages423425 (1986) | Download Citation



Regional circulation patterns in the deep sea are very difficult to determine because of time constraints on the acquisition of large physical-oceanographic data sets from abyssal depths; in addition, the large number of long-term (1 yr) current-meter arrays needed to delineate bottom-current pathways are extremely costly. An alternative method for inferring benthic flow patterns, described here, is to map the mean size of the silt fraction of sediment on the sea floor. Because of the availability of a large number of core samples in the Argentine Basin, the particle-size approach provides a useful method for determining bottom-current pathways in that deep basin.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Ledbetter, M. T. & Johnson, D. A. Science 194, 837–839 (1976).

  2. 2

    Blaeser, C. R. & Ledbetter, M. T. J. sedim. Petrol. 52, 755–768 (1982).

  3. 3

    Ledbetter, M. T. Mar. Geol. 58, 137–149 (1984).

  4. 4

    Ellwood, B. B., Ledbetter, M. T. & Johnson, D. A. Mar. Geol. 33, M51–M55 (1979).

  5. 5

    Bulfinch, D. L., Ledbetter, M. T., Ellwood, B. B. & Balsam, W. L. Science 215, 970–973 (1982).

  6. 6

    Bulfinch, D. L. & Ledbetter, M. T. Geo-Mar. Lett. 3, 31–36 (1984).

  7. 7

    Reid, J. R., Nowlin, W. D. Jr & Patzert, W. C. J. phys. Oceanogr. 7, 62–91.

  8. 8

    Georgi, D. T. Deep Sea Res. 28A, 959–979 (1981).

  9. 9

    Lawver, L. A. & Dick, H. J. B. J. geophys. Res. 88, 8192–81022 (1983).

  10. 10

    Ledbetter, M. T. & Ciesielski, P. F. Palaeogr., Palaeoclimatol., Palaeoecol. 52, 185–214 (1986).

  11. 11

    Le Pichon, X., Eittreim, S. L. & Ludwig, W. J. Phys. Chem. Earth 8, 3–28 (1971).

  12. 12

    Johnson, D. A., Ledbetter, M. & Burckle, L. H. Mar. Geol. 23, 1–33 (1977).

Download references

Author information


  1. Moss Landing Marine Laboratories, PO Box 450, Moss Landing, California, 95039-0450, USA

    • Michael T. Ledbetter


  1. Search for Michael T. Ledbetter in:

About this article

Publication history



Issue Date



Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.