Caballero Gill, Rocio P. et al. (2012): Antarctic isotope maxima events 24 and 25 identified in benthic marine delta (super 18) O

Leg/Site/Hole:
ODP 184
ODP 184 1146
Identifier:
2013-008064
georefid
10.1029/2011PA002269
doi
Creator:
Caballero Gill, Rocio P.
Brown University, Department of Geological Sciences, Providence, RI, United States
author
Clemens, Steve
author
Prell, Warren
author
Identification:
Antarctic isotope maxima events 24 and 25 identified in benthic marine delta (super 18) O
2012
Paleoceanography
American Geophysical Union, Washington, DC, United States
27
1
High-resolution planktic and benthic delta (super 18) O records at Site 1146 (northern South China Sea) include structure within Marine Isotope Stage 5.4, 118.5-105.9 ka, that is not captured in stacked delta (super 18) O records commonly used for age model construction and as proxies for global ice volume. Leveraging a common monsoonal influence, Site 1146 planktic delta (super 18) O was aligned to speleothem delta (super 18) O from southeastern China to derive a radiometrically calibrated (RC) age model. On the RC age model, the benthic delta (super 18) O record contains structure equivalent in time to Antarctic Isotope Maximum (AIM) events 24 and 25. Sea level reconstructions for isotopic event 5.4 suggest that these benthic delta (super 18) O events (AIM 24 and 25) derive from isotopic change (ice volume) although some temperature change cannot be completely excluded.
English
Serial
Coverage:Geographic coordinates:
North:19.2724
West:116.1622East: 116.1622
South:19.2724
Isotope geochemistry; Quaternary geology; benthic taxa; Cenozoic; chemical composition; climate change; Dansgaard-Oeschger cycles; Foraminifera; ice cores; Invertebrata; isotope ratios; isotopes; last glacial maximum; Leg 184; marine environment; microfossils; models; North Pacific; Northwest Pacific; O-18/O-16; Ocean Drilling Program; ODP Site 1146; oxygen; Pacific Ocean; paleo-oceanography; paleoclimatology; paleoenvironment; Pleistocene; Protista; Quaternary; solution features; South China Sea; speleothems; stable isotopes; upper Pleistocene; West Pacific;
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