تقرير
Speleothem-derived Asian summer monsoon variationsin Central China, 54–46 ka
| العنوان: | Speleothem-derived Asian summer monsoon variationsin Central China, 54–46 ka |
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| المؤلفون: | Zhou,HY(Zhou,Houyun) 1,2,6 ou, Zhao,JX(Zhao,Jianxin) 3,4, Wang,Q(Wang,Qing) 5, Feng,YX(Feng,Yuexing) 3, Tang,J(Tang,Jing) 1 |
| سنة النشر: | 2011 |
| المجموعة: | Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) / 中国科学院地球环境研究所机构知识库 |
| مصطلحات موضوعية: | stalagmite, d18O, U–Th ages, climate change, Central China, Late Pleistocene |
| الوصف: | The oxygen isotope signature (d18O) of stalagmite SI3 collected from Shizi Cave in north-east Sichuan Province provides an Asian Summer Monsoon (ASM) record in Central China for the period 54–46 ka. The SI3 d18O record clearly shows a negative d18O excursion centred around 49.4 ka, which was reported in Hulu Cave in East China but not identified in the speleothem records from South-west China. As a whole, this record displays a higher coherence with the two Hulu records from East China than with the speleothem d18Orecords from South-west China, suggesting that at 54–46 ka, Central China was influenced more by the East Asian Summer Monsoon than by the Indian Summer Monsoon. It also displays a significant negative d18O excursion at 47.5–46.6 ka, which is not clearly documented in two other speleothem d18Orecords previously reported from South-west China. This suggests that details of the Greenland interstadial 12 warrant further investigations in future in monsoonal China. The SI3 d18O record displays more significant centennial-scale variations than the other four speleothem d18Orecords from East and South-west China, which may be due to the fact that the study site is closer to the north-west boundary of the ASM and more sensitive to variations of the ASM than East and South-west China. |
| نوع الوثيقة: | report |
| اللغة: | English |
| العلاقة: | JOURNAL OF QUATERNARY SCIENCE; http://ir.ieecas.cn/handle/361006/10326Test |
| DOI: | 10.1002/jqs.1506 |
| الإتاحة: | https://doi.org/10.1002/jqs.1506Test http://ir.ieecas.cn/handle/361006/10326Test |
| حقوق: | "null" |
| رقم الانضمام: | edsbas.BC937DB3 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/jqs.1506 |
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