Apparent polar wandering for the Atlantic-bordering continents: Late Carboniferous to Eocene

Details Apparent polar wandering for the Atlantic-bordering continents: Late Carboniferous to Eocene Apparent polar wandering for the Atlantic-bordering continents: Late Carboniferous to Eocene

Jun 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974esrv...10...99v&link_type=abstract

Earth Science Reviews, Volume 10, Issue 2, p. 99-119.

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35

Scientific paper

We present a compilation of reliable paleomagnetic pole positions from five continental plates (North America, Europe, the Iberian Peninsula, Africa, and South America) for ten time intervals ranging from Late Carboniferous to Eocene. Only well-dated results obtained by demagnetization techniques have been used. Paleomagnetic poles are plotted with respect to the paleo-positions of the continents, as reconstructed from correlations of marine magnetic anomalies in the Atlantic Ocean by Pitman and Talwani and from the fit by Bullard et al. The poles from North America, Europe and the younger poles from Africa show a very good grouping for most of the ten intervals considered, and a continuous apparent polar wandering path is obtained. These data have been used to construct paleolatitude maps for most intervals; thus the relative positions of the continents were established from sea-floor spreading data and their absolute positions on the globe were determined from paleomagnetic data. The older data from South America and the other Gondwana continents show a systematic deviation from those of the northern continents for Late Paleozoic and Early Triassic time periods. An explanation is offered in a different continental reconstruction between Laurasia and Gondwanaland before Middle Triassic times.

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