Hall, Ian R. et al. (2003): Paleocurrent reconstruction of the deep Pacific inflow during the middle Miocene; reflections of East Antarctic ice sheet growth
Leg/Site/Hole:
Related Expeditions:
ODP 181
Identifier:
ID:
2006-012282
Type:
georefid
ID:
10.1029/2002PA000817
Type:
doi
Creator:
Name:
Hall, Ian R.
Affiliation:
Cardiff University, Department of Earth Sciences, Cardiff, United Kingdom
Role:
author
Name:
McCave, I. Nicholas
Affiliation:
University of Cambridge, United Kingdom
Role:
author
Name:
Zahn, Rainer
Affiliation:
Universitat de Barcelona, Spain
Role:
author
Name:
Carter, Lionel
Affiliation:
National Institute of Water and Atmosphere, New Zealand
Role:
author
Name:
Knutz, Paul C.
Affiliation:
University of Copenhagen, Denmark
Role:
author
Name:
Weedon, Graham P.
Affiliation:
University of Luton, United Kingdom
Role:
author
Identification:
Title:
Paleocurrent reconstruction of the deep Pacific inflow during the middle Miocene; reflections of East Antarctic ice sheet growth
Year:
2003
Source:
Paleoceanography
Publisher:
American Geophysical Union, Washington, DC, United States
Volume:
18
Issue:
2
Pages:
Abstract:
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.)
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:-41.4710 West:-171.2956 East:
-171.2956 South:-41.4710
Keywords: Stratigraphy; Antarctic ice sheet; Antarctica; Cenozoic; Chatham Rise; climate change; East Antarctica; glacial geology; ice sheets; Leg 181; lithofacies; marine sediments; middle Miocene; Miocene; Neogene; Ocean Drilling Program; ODP Site 1123; Pacific Ocean; paleo-oceanography; paleoclimatology; paleocurrents; Pleistocene; Quaternary; reconstruction; sediments; South Pacific; Tertiary;
.