Ravelo, A. C. et al. (2007): Onto the ice ages; proxy evidence for the onset of Northern Hemisphere glaciation

Leg/Site/Hole:
ODP 114
ODP 130
ODP 138
ODP 145
ODP 154
ODP 165
ODP 167
ODP 175
ODP 202
DSDP 68
DSDP 81
DSDP 89
DSDP 94
DSDP 68 502
DSDP 81 552
DSDP 89 586
DSDP 94 606
DSDP 94 607
ODP 167 1014
ODP 167 1018
ODP 175 1084
ODP 175 1085
ODP 202 1237
ODP 114 704
ODP 130 806
ODP 138 846
ODP 138 847
ODP 138 849
ODP 138 851
ODP 145 882
ODP 154 925
ODP 154 929
ODP 165 999
Identifier:
2008-114479
georefid
Creator:
Ravelo, A. C.
University of California at Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States
author
Billups, K.
University of Leeds, United Kingdom
author
Dekens, P. S.
PetroStrat, United Kingdom
author
Herbert, T. D.
University of Bristol, United Kingdom
author
Lawrence, K. T.
University of Delaware, United States
author
Identification:
Onto the ice ages; proxy evidence for the onset of Northern Hemisphere glaciation
2007
In: Williams, M. (editor), Haywood, A. M. (editor), Gregory, F. J. (editor), Schmidt, D. N. (editor), Deep-time perspectives on climate change; marrying the signal from computer models and biological proxies
Geological Society of London, London, United Kingdom
563-573
Global climate change over the last five million years includes the early Pliocene warm period (c. 5-3 Ma) and a transition to the cool ice age climate of the latest c. 2 Ma. The growth of large ice sheets was accompanied by changes in deep and intermediate water mass characteristics, the end of El Nino-like mean conditions, and the development of cool tropical and subtropical upwelling regions. By considering how and when regional changes occurred, several possible causes of the warm to cold Pliocene climate transition are explored. There is intriguing evidence that, in addition to ice-albedo feedbacks that amplified cooling in high-latitude regions, the shoaling thermocline was a critical factor in the evolution of the Northern Hemisphere ice ages.
English
Book
Coverage:Geographic coordinates:
North:56.0234
West:-76.2300East: 13.5924
South:-29.2228
Stratigraphy; Atlantic Ocean; Cenozoic; climate change; Deep Sea Drilling Project; deep-sea environment; DSDP Site 502; DSDP Site 552; DSDP Site 586; DSDP Site 606; DSDP Site 607; glaciation; IPOD; Leg 114; Leg 130; Leg 138; Leg 145; Leg 154; Leg 165; Leg 167; Leg 175; Leg 202; Leg 68; Leg 81; Leg 89; Leg 94; marine environment; Neogene; Northern Hemisphere; Ocean Drilling Program; ODP Site 1014; ODP Site 1018; ODP Site 1084; ODP Site 1085; ODP Site 1237; ODP Site 704; ODP Site 806; ODP Site 846; ODP Site 847; ODP Site 849; ODP Site 851; ODP Site 882; ODP Site 925; ODP Site 929; ODP Site 999; Pacific Ocean; paleo-oceanography; paleoclimatology; paleoenvironment; paleotemperature; Pleistocene; Pliocene; Quaternary; sea-surface temperature; Tertiary; thermocline;
.