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Implications of Palaeozoic phosphorites in the northern Sierra Nevada range

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Abstract

Marine phosphorites are known to occur within multiply deformed Ordovician/Silurian and Upper Devonian rocks of the northern Sierra Nevada range, California. Although the phosphatic sediments constitute a small percentage of total lithologies in the area, they provide unique information regarding the age and palaeogeographical setting of these rocks. The mode of occurrence of the Sierran phosphorites and their association with black shale and chert suggest that they may have formed along a continental margin which experienced strong equatorial or trade wind belt upwelling. Consideration of worldwide plate reconstructions for the early to middle Palaeozoic shows that the present western margin of North America was one of the few favourable sites for phosphate formation during this time period. Thus, the presence of marine phosphorites within Palaeozoic rocks of the northern Sierra Nevada is consistent with arguments which suggest that these rocks were deposited near the western margin of North America. Although considerable margin-parallel translations cannot be ruled out for these rocks, they do not appear to constitute a far-travelled microplate derived from a distant, trans-oceanic site.

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References

  1. Bond, G. C. & Devay, J. J. Geol. 88, 285–308 (1980).

    Article  ADS  CAS  Google Scholar 

  2. Clark, L. D. Prof. Pap. U.S. geol. Surv. 923, 26 (1976).

    Google Scholar 

  3. Schweickert, R. A. Abstr. Prog. geol. Soc. Am. 6, 251 (1974).

    Google Scholar 

  4. D'Allura, J. A., Moores, E. M. & Robinson, L. Pacif. Coast Paleogeogr. Symp. Soc. Econ. Paleontol. Miner. 1, 421–440 (1977).

    Google Scholar 

  5. Durrell, C. & D'Allura, J. A. Bull. geol. Soc. Am 88, 844–852 (1977).

    Article  Google Scholar 

  6. Schweickert, R. A. & Girty, G. H. Abstr. Prog. geol. Soc. Am. 13, 105 (1981).

    Google Scholar 

  7. Varga, R. J. & Moores, E. M. Geology 9, 512–518 (1981).

    Article  ADS  Google Scholar 

  8. Girty, G. H. & Schweickert, R. A. Abstr. Prog. geol. Soc. Am. 11, 79 (1977).

    Google Scholar 

  9. Varga, R. J. Abstr. Progr. geol. Soc. Am. 11, 133 (1977).

    Google Scholar 

  10. Hannah, J. L. & Verosub, K. L. Geology 8, 520–524 (1980).

    Article  ADS  Google Scholar 

  11. Burchfiel, B. C. & Davis, G. A. Am. J. Sci. 275A, 363–396 (1975).

    Article  Google Scholar 

  12. Devay, J. & Stanley, E. Abstr. Prog. geol. Soc. Am. 11, 412 (1979).

    Google Scholar 

  13. Gulbrandsen, R. A. Prof. Pap. U.S. geol. Surv. 700 -B, 9–13 (1970).

    Google Scholar 

  14. Bentor, Y. K. Spec. Publ. Soc. Econ. Paleont. Miner. 29, 3–18 (1980).

    CAS  Google Scholar 

  15. McArthur, J. M. Spec. Publ. Soc. Econ. Paleeont. Miner. 29, 53–60 (1980).

    CAS  Google Scholar 

  16. Bentor, Y. K. in Rep. Marine Phosphatic Sed. Workshop, 29 (1979).

  17. Dickinson, W. R. Pacif. Coast. Paleogeogr. Symp. Soc. Econ. Paleont. Miner. 1, 137–155 (1977).

    Google Scholar 

  18. Churkin, M. Jr . Spec. Pub. Soc. Econ. Paleont. Miner. 19, 174–192 (1974).

    Google Scholar 

  19. Speed, R. C. Geology 87, 279–292 (1979).

    Article  Google Scholar 

  20. Sheldon, R. P. Prof. Pap. U.S. GEOL. Surv. 501 C, 106–113 (1964).

    Google Scholar 

  21. Cook, P. J. & McEhinny, M. W. Econ. Geol. 74, 315–330 (1979).

    Article  CAS  Google Scholar 

  22. McKelvey, V. E., Swanson, R. W. & Sheldon, R. P. 19th int. Geol. Congr. 11, 45–65 (1953).

    Google Scholar 

  23. Grower, H. D. & Madsen, B. M. Prof. Pap. U.S. geol. Surv. 501 D, 79–85 (1964).

    Google Scholar 

  24. Cheney, T. M., McClellan, G. H. & Montgomery, E. S. Econ. Geol. 74, 232–259 (1979).

    Article  CAS  Google Scholar 

  25. Sheldon, R. P. Econ. Geol. 59, 1159–1175 (1964).

    Article  CAS  Google Scholar 

  26. Sheldon, R. P. Spec. Pap. Soc. Econ. Paleont. Miner. 29, 239–247 (1980).

    Google Scholar 

  27. Cathart, J. B. U.N. Res. Dev. Ser., 32, 403–405 (1969).

    Google Scholar 

  28. D'Anglejan, B. F. in Rep. Marine Phosphatic Sed. Workshop 17 (1979).

  29. McKelvey, V. E. Bull. U.S. geol. Surv. 1252 D, 1–22 (1967).

    Google Scholar 

  30. Riggs, S. R. Econ. Geol. 74, 195–220 (1979).

    Article  Google Scholar 

  31. Manheim, F. T., Pratt, R. M. & McFarlin, P. F. Spec. Publ. Soc. Econ. Paleont. Miner. 29, 117–137 (1980).

    CAS  Google Scholar 

  32. Cullen, D. J. Spec. Publ. Econ. Paleont. Miner. 29, 139–148 (1980).

    CAS  Google Scholar 

  33. Burnett, W. C. in Proc. Fertilizer Raw Materials Workshop, 120–144 (1979).

    Google Scholar 

  34. Morel, P. & Irving, E. J. Geol. 86, 535–561 (1978).

    Article  ADS  Google Scholar 

  35. Veevers, J. J. J. geol. Soc. Aust. 14, 253–271 (1967).

    Article  Google Scholar 

  36. Gansser, A. Geology of the Himalayas, 289 (Interscience, New York, 1964).

    Google Scholar 

  37. Scotese, C., Bambach, R. K., Barton, C., Van der Voo, R. & Ziegler, A. J. Geology 87, 217–277 (1979).

    Article  ADS  Google Scholar 

  38. Schweickert, R. A. & Snyder, W. S. in The Geotectonic Development of California 182–202 (Prentice-Hall, New Jersey, 1981).

    Google Scholar 

  39. Stewart, J. H. Bull. geol. Soc. Am. 83, 1345–1360 (1972).

    Article  Google Scholar 

  40. Moores, E. M. Nature 228, 837–842 (1970).

    Article  ADS  CAS  Google Scholar 

  41. Schweickert, R. A. Nature 260, 586–591 (1976).

    Article  ADS  Google Scholar 

  42. Schweickert, R. A. Abstr. Prog. geol. Soc. Am. 9, 497 (1977).

    Google Scholar 

  43. Moore, J. N. & Foster, C. T. Bull. geol. Soc. Am. 91, 37–43 (1980).

    Article  Google Scholar 

  44. Burchfiel, B. C. & Davis, G. A. in The Geotectonic Development of California 50–70 (Prentice-Hall, New Jersey, 1981).

    Google Scholar 

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  1. Union Oil Research Center, PO Box 76, Brea, California, 92621, USA

    Robert J. Varga

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Varga, R. Implications of Palaeozoic phosphorites in the northern Sierra Nevada range. Nature 297, 217–220 (1982). https://doi.org/10.1038/297217a0

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