Geological Investigations and Logistics in the Ellsworth Mountains, 1979-80
900 difference in declination is due to rapid changes in the References paleomagnetic field with respect to Antarctica during the Lower Paleozoic cannot be discounted at the present level Alley, R. B., and Watts, D. R. 1979. Paleomagnetic investigation of of coverage. A solid data base from the Paleozoic of the east the northern antarctic peninsula. EQS. Transactions, American antarctic craton will be required before the problem is fully Geophysical Union, 60, 240. resolved. Furthermore, the results for the Ellsworth Moun- Dalziel, I. W. D. In press. The pre-Jurassic history of the Scotia Arc: tains presented here represent only 3 sites of the total of 70. A review and progress report. In C. Craddock (Ed.), Antarctic At this stage in the investigation, the data are most consis- Geoscience. Madison: The University of Wisconsin Press. deWit, M. J 1977. The evolution of the Scotia Arc as a key to the re- tent with a theory proposing a microplate nature of West . construction of southwestern Gondwanaland. Tectonophysics, 37, Antarctica. 53-82. Elliot, D. H., Watts, D. R., Alley, R. B., and Gracanin, T. M. 1978. Geo- logic studies in the northern antarctic peninsula, R/V Hero cruise 78-lB. February 1978. Antarctic Journal of the U.S., 13(4), 12-13. Elston, D. R., and Purucker, M. E. 1979. Detrital magnetization in 50 Sr ndon. red beds of the Moenkopi Formation (Triassic), Gray Mountain, C>. Arizona. Journal of Geophysical Research, 84, 1653-1666. EAST Graham, J. W. 1949. The stability and significance of magnetism in ANTARCT IC - CRATON sedimentary rocks. Journal of Geophysical Research, 59, 131 137.
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