| 大理苍山世界地质公园第四纪冰碛物特征及年代测定 |
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| 关键词:global geopark Diancang Mountain Luoping Mountain OSL dating scanning electron microscopy Last Glaciation the Penultimate Glaciation |
| 基金项目:中央级公益性科研院所基本科研业务费项目(编号: YWF201407) |
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| Quaternary Glacial Deposits Features and Its OSL Dating in Mt. Cangshan Global Geopark of Dali, Yunnan Province |
| Rich and diverse types of geoheritage resources are distributed in Mt. Cangshan Global Geopark of Dali, Mt. Cangshan is known as Diancang Mountain in geosciences. In this study, the authors applied Optically Stimulated Luminescence (OSL) dating and Scanning Electron Microscopy (SEM) analysis to the Quaternary sediments on the north slope of the Yuju peak and the Luoping Mountain, investigated the applicability of OSL dating to glacial deposits and made a comparison between the deposits in these areas. OSL dating results indicate that the three lateral moraines on the Diancang Mountain was formed in (31.68±3.22)~(28.01±1.95) ka BP, SEM analysis of the quartz grains of Quaternary sediments of Luoping Mountain indicates that there are certain glacial characteristics, and OSL dating results with (136.36±10.16) ka BP shows that it belongs to the Penultimate Glaciation. Combining this work with previous studies, the authors infer that there exists certain possibility that the Diancang Mountain developed the Penulti-mate Glaciation. |
| GU Jia-ni,CHEN An-dong,ZHAO Zhi-zhong,YAO Hai-tao,LI Zhi-ming,ZHANG Qing.2016.Quaternary Glacial Deposits Features and Its OSL Dating in Mt. Cangshan Global Geopark of Dali, Yunnan Province[J].Acta Geoscientica Sinica,37(6):769-778. |
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