(Table 1) Calcium carbonate at DSDP Hole 81-552A

• Main Authors: Zimmerman, H B, Shackleton, Nicholas J, Backman, Jan, Kent, Dennis V, Baldauf, Jack G, Kaltenback, A J, Morton, Andrew C
• Format: Dataset
• Language: English
• Published: PANGAEA 1984
• Subjects: 81-552A; Calcium carbonate; coarse fraction > 74 µm; Carbonate bomb (Müller & Gastner; 1971); Deep Sea Drilling Project; DEPTH; sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg81; North Atlantic/PLATEAU; Sample code/label; see reference(s); Size fraction > 0.074 mm; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.807222; https://doi.org/10.1594/PANGAEA.807222

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.