| 古气候变化的石笋同位素记录研究——以桂林盘龙洞为例 |
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| 关键词:stalagmite isotope palaeoclimate Guilin |
| 基金项目:国家自然科学基金,地矿部“八．五”重点基础资助,中国地质科学院实验基金 |
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| 摘要: |
| Studies on Stalagmite Isotope Records of Paleoclimatictic Changes |
| More than two years'monitoring to the nowadays water_drop and carbonate sedimentation as well as the cave environment around a big stalagmite at the Panlongdong cave in Guilin has been conducted for the detaild study. It provides a basis for testing the balanced sedimentation of isotope and full exchange degree of 14 C.Meanwhile,the systematic and comprehensive studies with AMS 14 C,U series and stable isotope have been made along the axis cores of the stalagmites.A model has been presented for the climate changes in the past 36 000 as in Guilin area. The records of oxygen isotope of the stalagmites are basically consistent with the climate in-formation provided by the carbon isotope and the growth rate of stalagmite. They can also be compared with the results of the study of phenology in our country and the section of loess in northern China. |
| QIN Jia-ming.1997.Studies on Stalagmite Isotope Records of Paleoclimatictic Changes[J].Acta Geoscientica Sinica,18(3):255-260. |
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