The Records of Mass Susceptibility and Grain Size for Climate Changes in Subei Basin During the Last Deglaciation
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2009-02-10
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Key words:
- Subei basin /
- climate change /
- mass susceptibility /
- grain size
Abstract: Based on the synthetic analysis of the mass susceptibility and grain size from the YZ core obtained from Subei basin, the process and characters of palaeoclimate evolution during the past
16.7 ka were revealed. The results show that during the past 16.7 cal kaBP, the palaeoclimate of Subei basin has experienced several phases: 16.7~13.5 cal kaBP, relatively humid period; 13.5~11.2 cal kaBP, extremely arid period; 11.2~1.1 cal kaBP, relatively steady humidity period. In addition, the indexes also recorded several climate events. YD event and 3.0cal kaBP events are obviously. The aridhumid fluctuations since around 16.7 ka disclosed by YZ core reveals a strong correlation with the GRIP oxygen isotope record and Donggedong’s stalagmite oxygen isotope record. This indicates that the climate changes in the study area not only has great regional character, but also has great correlation with the global climate changes.
| Citation: | SHU Qiang. The Records of Mass Susceptibility and Grain Size for Climate Changes in Subei Basin During the Last Deglaciation[J]. Acta Sedimentologica Sinica, 2009, 27(1): 111-117.
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