1887
Volume 4, Issue 4
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

Results of "magnetic logging" of 1.97 km of diamond drill core from Permian-Triassic rocks of the Sydney Basin have indicated the potential usefulness of this technique in strati graphic correlation studies. The "magnetic stratigraphy" (which represents time horizons) determined from this reconnaissance investigation has complemented earlier conclusions that at 1 east some of the lithologic units (or contacts) in t)ie Triassic Marrabeen Group are time-transgressive. Considerable additional data need to be accumulated before the magnetic data provides a complete section through the Sydney Basin. This investigation has not clarified the (time-)boundaries of the ‘ ’, a term which needs more formal definition (or perhaps abandonment).

© 1973 ASEG
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1973-12-01
2026-01-16

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References

  1. BOWMAN, H.N., 1970: Palaeoenvironment and Revised Nomenclature of the Upper Shoalhaven Group and Illawarra Coal Measures in the Wo11ongong-Kiama Area, Mew South Wales. Rea. geol. Surv. N.S.W., 12, pp.163-182.
  2. BUNNY, M.R. and HERBERT, C, 1971: The Lower Triassic Newport Formation, Narrabeen Group, Southern Sydney Basin. Rea. geol. Surv. N.S.W., 13, pp.61-81.
  3. DOELL, R.R. and COX, A., 1962: Determination of the Magnetic Polarity of Rock Samples in the Field. Prof. Paper U.S. geol. Surv. 450-D, pp.D105-D108.
  4. DOELL, R.R. and COX, A., 1967: Measurement of Natural Remanent Magnetization at the Outcrop, in COLLINSON, D.W.; CREER, K.M. and RUNCORN, S.K. (Eds): Methods in Palaeomagnetism. Elsevier Publ. Co., Amsterdam. pp.159-162.
  5. IRVING, E., 1963: Paleomagnetism of the Narrabeen Chocolate Shales and the Tasmanian Polerite. J. geophys. Res., 68, pp.2283-2287.
  6. IRVING, E., 1966: Paleomagnetism of some Carboniferous Rocks from New South Wales and its Relation to Geological Events. J. geophys. Res., 71, pp.6025-6051.
  7. IRVING, E., 1971: Nomenclature in Magnetic Stratigraphy. Geophys. J. R. aetr. Soc., 24, pp.529-531.
  8. IRVING, E. and PARRY, L.G., 1963: The Magnetism of some Permian Rocks from New South Wales. Geophys. J.R. astr. Soc. 7, pp.395-411.
  9. McELHINNY, M.W., 1969: The Palaeomagnetism of the Permian of Southeast Australia and its Significance Regarding the Problem of Intercontinental Correlation. Spec. Puhls geol. Soc. Aust., 2, pp.61-67.
  10. McELROY, C.T., 1969a: Clyde Coal Measures, in PACKHAM, G.H. (Ed.,) : The Geol ogy of New South Wales. J. geol. Soc. Aust., 16, pp.356-357.
  11. McELROY, C.T., twith others) 19695: Marrabeen Group, in PACKHAM, G.H. (Ed.): The Geology of Slew South Wales. J. geol. Soc. Aust., 16, pp.388-407.
  12. McELROY, C.T., BRANAGAN, D.F., PAAM, A. and CAMPBELL, K.S.W.; 1969: Shoalhaven Group. in PACKHAM, G.H. (Ed.): The Geology of Mew South Wales. J. geol. Soc. Aust., 16, pp.357-366.
  13. PACKHAM, G.H. (Ed.), 1969: The Geology of New South Wales. J. Geol. Soc. Aust., 16, pp.1-654.
  14. STRANGWAY, D.W., 1970: History of the Earth's Magnetic Field. McGraw-Hill Book Company, New York, 168 pp.
  15. WATKINS, N.D., 1972: Review of the Development of the Geomagnetic Polarity Time Scale and Discussion of Prospects for its Finer Definition. Bull. geol. Soc. Am., 83, pp.551-574.
  16. WILSON, R.G., 1969: Illawarra Coal Measures A. Southern Coalfield. in PACKHAM, G.H. (Ed.): The Geology of New South Wales. J. geol. Soc. Aust., 16, pp.370-379.
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