Hall, Ian R.; McCave, I. Nicholas; Zahn, Rainer; Carter, Lionel; Knutz, Paul C.; Weedon, Graham P. (2003): Paleocurrent reconstruction of the deep Pacific inflow during the middle Miocene; reflections of East Antarctic ice sheet growth. American Geophysical Union, Washington, DC, United States, Paleoceanography, 18 (2), georefid:2006-012282

Today the deep western boundary current (DWBC) east of New Zealand is the most important route for deep water entering the Pacific Ocean. Large-scale changes in deep water circulation patterns are thought to have been associated with the development of the East Antarctic Ice Sheet (EAIS) close to the main source of bottom water for the DWBC. Here we reconstruct the changing speed of the southwest Pacific DWBC during the middle Miocene, a period of significant global ice accumulation associated with EAIS growth. Sortable silt mean grain sizes from Ocean Drilling Program Site 1123 reveal variability in the speed of the Pacific inflow on the timescale of the 41 kyr orbital obliquity cycle. (modified journ. abstr.)
West: -171.2956 East: -171.2956 North: -41.4710 South: -41.4710
Expedition: 181
Site: 181-1123
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=10.1029/2002PA000817 (c.f. for more detailed metadata)
Data download: application/pdf
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