Abstract
RECONSTRUCTION of the climatic and hydrologic history of ocean basins has been based on either oxygen isotope palaeothermometry or studies of foraminiferal assemblages preserved in deep sea sediments. We report here the application of both methods to deep sea sediments collected from the Arctic Ocean by the Lamont–Doherty Geological Observatory. Oxygen isotope determinations were made on two selected cores from the central Arctic basin to test the validity of the palaeoceanographic interpretations based on microfaunal analysis1–3. Details of the cores are given in Fig. 1 and Table 1. Analyses of the cores have already been published in detail: here we wish to summarize what we have discovered about the history of the Arctic Ocean1–4.
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HERMAN, Y., GRAZZINI, C. & HOOPER, C. Arctic Palaeotemperatures in Late Caenozoic Time. Nature 232, 466–469 (1971). https://doi.org/10.1038/232466a0
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DOI: https://doi.org/10.1038/232466a0
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