Prediction of the next glaciation; a controversial issue

Author(s): Wang Pinxian
Author Affiliation(s): Primary:
Tongji University, Laboratory of Marine Geology, Shanghai, China
Volume Title: Haiyang Dizhi yu Disiji Dizhi Marine Geology & Quaternary Geology
Source: Haiyang Dizhi yu Disiji Dizhi = Marine Geology & Quaternary Geology, 23(1), p.1-6. Publisher: Science Press, Beijing, China. ISSN: 0256-1492
Note: In Chinese with English summary. 28 refs.; illus.
Summary: This paper briefly reviews how the prediction of the next glaciation has been evolving in the scientific community and why the viewpoints are so divergent. The key to the scientific prediction of the next glaciation lies in the understanding of specific features of the present and future orbital forcing, and of the mechanisms of carbon cycling. The recent discovery of periodic occurrences of δ13Cmax over the last 5 Ma in the deep-sea sequence at ODP Site 1143 in the southern South China Sea indicates that long-term changes in carbon reservoirs on Earth have their own periodicity and their own history, and do not simply follow ice cap variations. Because disturbances in carbon reservoirs lead to major growth in the size of ice sheets, and because the Earth is now passing through a δ13Cmax episode, it is crucial to understand the causal relationship between successive δ13C changes and ice sheet growth events.
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; C-13/C-12; Carbon; Carbon cycle; Cenozoic; Foraminifera; Geochemical cycle; Geochemical indicators; Glacial geology; Glaciation; Ice caps; Ice sheets; Invertebrata; Isotope ratios; Isotopes; Leg 184; Microfossils; Milankovitch theory; North Pacific; Northwest Pacific; ODP Site 1143; Ocean Drilling Program; Pacific Ocean; Prediction; Protista; Quaternary; South China Sea; Stable isotopes; Upper Quaternary; West Pacific
Coordinates: N092143 N092143 E1131707 E1131707
Record ID: 2009026934
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data supplied by National Geological Library, Beijing, China