Ocean Drilling Program (ODP) Site 982 provided a key sediment section at Rockall Plateau for reconstructing northeast Atlantic paleoceanography and monitoring benthic delta (super 18) O stratigraphy over the late Pliocene to Quaternary onset of major Northern Hemisphere glaciation. A renewed hole-specific inspection of magnetostratigraphic reversals and the addition of epibenthic delta (super 18) O records for short Pliocene sections in holes 982A, B, and C, crossing core breaks in the delta (super 18) O record published for Hole 982B, now imply a major revision of composite core depths. After tuning to the orbitally tuned reference record LR04, the new composite delta (super 18) O record results in a hiatus, where the Kaena magnetic subchron might have been lost, and in a significant age reduction for all proxy records by 130 to 20 ky over the time span 3.2-2.7 million years ago (Ma). Our study demonstrates the general significance of reliable composite-depth scales and delta (super 18) O stratigraphies in ODP sediment records for generating ocean-wide correlations in paleoceanography. The new concept of age control makes the late Pliocene trends in SST (sea surface temperature) and atmospheric pCO (sub 2) at Site 982 more consistent with various paleoclimate trends published from elsewhere in the North Atlantic.

West: -15.5200 East: -15.5200 North: 57.3100 South: 57.3100

Expedition: 162

Site: 162-982

Includes supplement, http://www.clim-past.net/8/79/2012/cp-8-79-2012-supplement.pdf; published in Climate of the Past Discussion: 24 May 2011, http://www.clim-past-discuss.net/7/1631/2011/cpd-7-1631-2011.html; accessed in April 2012

Provider: SEDIS Publication Catalogue

Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=2013-010061 (c.f. for more detailed metadata)

Data download: application/pdf

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