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Desert varnish and marine ferromanganese oxide nodules: congeneric phenomena

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Abstract

BLACK, hydrated ferromanganese oxide (FMO) concretions of microscopic to macroscopic size and complex mineralogy cover ocean floors all over the world at depths of up to 8 km (ref. 1). These amorphous–crystalline nodules have a total Cu, Ni and Co content of 40 p.p.m. to 4% and vary greatly in trace element content, apparently because of varying growth rates caused by the different Eh and pH in their environments. Black, amorphous, hydrated desert varnish (DV) coatings, 10–100 µm thick, are extensively found in limited areas of the world's arid lands2,3 in both the subtropics and in non-sterile areas of the Antarctic dry valleys4. Marine FMO nodules are formed principally by biological fixation processes; the mode and rate of formation of DV, on the other hand, are not understood, but concern anthropologists in their efforts to date petroglyphs and other artefacts of ancient man5.

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References

  1. Heezen, B. C., and Hollister, D. C., The Face of the Deep (Oxford University, London, 1971).

    Google Scholar 

  2. Engel, C. G., and Sharp, R. P., Bull. geol. Soc. Am., 69, 487–518 (1958).

    Article  CAS  Google Scholar 

  3. Lakin, H. W., Hunt, C. B., Davidson, D. F., and Oda, U., US Geol. Surv. Prof. Pap., 475 –B, B–28–B–31 (1963).

    Google Scholar 

  4. Rudolf, E. D., in Antarctic Ecology (edit. by Holdgate, M. W.), 2, 685 (Scientific Committee for Antarctic Research–Academic, New York, 1970).

    Google Scholar 

  5. Grant, C., Baird, J. W., and Pringle, J. K., in Rock Drawings of the Coso Range, Inyo County, California (Maturango Museum, China Lake, California, 1968).

    Google Scholar 

  6. Glasby, G. P., Naturwissenschaften, 62, 133–135 (1975).

    Article  ADS  CAS  Google Scholar 

  7. Goldberg, E. D., in The Sea (edit. by Hill, M. N.), 2, 18, footnote (Interscience, New York, 1963).

    Google Scholar 

  8. Jenne, E. A., in Trace Inorganics in Water (edit. by Gould, R. F.), 337–387 (American Chemical Society, Washington, 1968).

    Book  Google Scholar 

  9. Kittredge, J. S., in Experimental Marine Biology (edit. by Mariscal, R. N.), 225–267 (Academic, New York, 1974).

    Book  Google Scholar 

  10. Ehrlich, H. L., in Ferromanganese Deposits on the Ocean Floor (edit. by Horn, D. R.), 63–70 (NSF-IDOE, Washington, 1972).

    Google Scholar 

  11. Greenslate, J., Science, 186, 529–531 (1974).

    Article  ADS  CAS  Google Scholar 

  12. Bonatti, E., Kraemer, T., and Rydell, H., in Ferromanganese Deposits on the Ocean Floor (edit. by Horn, D. R.), 149–166 (NSF-IDOE, Washington, 1972).

    Google Scholar 

  13. Glasby, G. P., Mar. Chem., 1, 105–125 (1972–73).

    Article  Google Scholar 

  14. Scheffer, F., Meyer, B., and Kalk, E., Z. Geomorph., 7, 112–119 (1963).

    CAS  Google Scholar 

  15. Burns, R. G., and Brown, B. A., in Ferromanganese Deposits on the Ocean Floor (edit. by Horn, D. R.), 51–61 (NSF-IDOE, Washington, 1972).

    Google Scholar 

  16. Hooke, R. Le-B, Yang, H.-Y., and Weiber, R. W., J. Geol., 77, 275–288 (1969).

    Article  ADS  CAS  Google Scholar 

  17. Burns, R. G., and Burns, V. M., Nature, 255, 130–131 (1975).

    Article  ADS  CAS  Google Scholar 

  18. Taylor, R. M., McKenzie, R. M., and Norrish, K., Aust. J. Soil Res., 2, 235–248 (1964).

    Article  CAS  Google Scholar 

  19. Murray, J. W., Geochim. cosmochim. Acta, 39, 505–519 (1975).

    Article  ADS  CAS  Google Scholar 

  20. Hem, J. D., US Geol. Surv. Prof. Pap., 475 –C, C-216 (1963).

    Google Scholar 

  21. Chaptal, L., La Nature, 60, pt. 2, 449–454 (1932).

    Google Scholar 

  22. Cameron, R. E., in Antarctic Terrestrial Biology (edit. by Llano, G. A.), 195–260 (American Geophysical Union–NSF-NRC, Washington, 1972).

    Book  Google Scholar 

  23. Rizk, F., El-Arabaty, A., and El-Sarky, A., Transactions Paper T75082-3, Winter Meeting IEEE PES, New York, January 26–31 (1975).

    Google Scholar 

  24. Raab, W., in Ferromanganese Deposits on the Ocean Floor (edit. by Horn, D. R.), 31–49 (NSF-IDOE, Washington, 1972).

    Google Scholar 

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BAUMAN, A. Desert varnish and marine ferromanganese oxide nodules: congeneric phenomena. Nature 259, 387–388 (1976). https://doi.org/10.1038/259387a0

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