Paleomagnetic dating definition

Moreover, deep reflection surveys and refraction data have contributed substantially to the understanding of processes governing the evolution and destruction of sedimentary basins.In recent years, the petroleum industry in its quest for new hydrocarbon resources has extended its exploration efforts to the limits of the perennially ice-infested Arctic frontier areas.The ever-increasing number of radiometric age determinations has contributed much to the dating of orogenic events and the intraplate igneous activity that accompanied the Paleozoic assembly of Pangea, its Mesozoic and Cenozoic break-up, and the Alpine suturing of Africa and Europe.In addition, faunal analyses and particularly paleomagnetic data have provided new constraints for the paleogeographic reconstruction of the Arctic-North Atlantic and Tethys domains.

In the eastern Mediterranean-Black Sea area, the Hercynian fold belt probably faced the oceanic Proto- or Paleo-Tethys, which separated it from the northern, passive margin of Gondwana.*Maps and text (Introduction and Chapter 10) from AAPG Memoir 43, Evolution of the Arctic-North Atlantic and the Western Tethys, by Peter A. Adapted here for online presentation; included are the maps in time-lapse sequence, which require downloading for economy of online time. The Arctic-North Atlantic domain is considered in Memoir 43 as including part of the oceanic Canada and Eurasian basins, the Norwegian-Greenland Sea, the North Atlantic, the Labrador Sea, and Baffin Bay. INTRODUCTION Memoir 43 broadly outlines the Late Silurian to Recent evolution of the Arctic-North Atlantic and Western Tethys domains and their borderlands.The topographic bases of these maps, showing the present-day continental outlines for areas not affected by orogenic activity during the respective time interval, are based on computer-generated palinspastic reconstructions of the Arctic-North Atlantic and the Central Atlantic Oceans as dictated by their sea-floor magnetic anomalies.These reconstructions were carried out at Shell Development Company's Bellaire Research Center in Houston using programs for computer animation of continental drift (Scotese et al., 1980).

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