Zimmerman H. B. author Shackleton N. J. author Backman J. author Kent Dennis V. author Baldauf J. G. author Kaltenback A. J. author Morton A. C. author Columbia University. Lamont-Doherty Earth Observatory originator text Articles 1984 English DSDP Hole 552A, cored with the HPC on Hatton Drift, represents an almost complete and undisturbed sediment section spanning the late Neogene and Quaternary. Lithologic, faunal, isotopic, and paleomagnetic analyses indicate that the section represents the most complete deep sea record of climatic evolution hitherto recovered at high latitudes in the northern hemisphere. A glacial record of remarkable resolution for the late Pliocene and Pleistocene is provided by oxygen and carbon isotope ratios in benthic foraminifers. In the upper part of the section, the whole of the standard oxygen isotope record of the past million years is well preserved. The onset of ice-rafting and glacial-interglacial alternations occurs at about 2.4 m.y. ago. Geophysics 81 861 876 1984 http://hdl.handle.net/10022/AC:P:11094 NNC NNC 2011-09-07 12:19:26 -0400 2011-09-07 12:29:28 -0400 5092 eng