| Baiyun Cave in Naigu Shilin,Yunnan Karst,China |
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| 作者姓名： | S.EBELA T.SLABE J.KOGOVEK P.PRUNER |
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| 作者单位： | Karst Research Institute ZRC SAZU，Titov trg 2，6230 Postojna，Slovenia，Karst Research Institute ZRC SAZU，Titov trg 2，6230 Postojna，Slovenia，Karst Research Institute ZRC SAZU，Titov trg 2，6230 Postojna，Slovenia，Institute of Geology，Academy of Sciences of the Czech Republic Rozvojova 135，16502 Praha，Czech Republic |
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| 摘 要： | The Baiyun cave is a 380 m long karst cave in the Naigu Shilin, situated 70 km southeast of Kunming, Yunnan Province, China. The prevailing orientations of the cave passages are N110°-120°E and N0°-10°W and those of the fissures in the cave are N30°-40°W and N20°-30°W. The cave is developed in the thick-bedded Lower Permian Qixia Formation. The cave has an active water flow and is currently at the near water-table stage. There are large amounts of different infills of cave sediments. The cave shows different stages of paragenesis. The palaeomagnetic analysis of cave sediments shows that their ages are younger than 780 ka B.P. (the Brunhes Chron). The upper part of the sampled profile belongs to the reverse Blake event (112.3-117.9 ka B.P.). The formation of the Baiyun cave is directly connected with the development of the Naigu Shilin. The formation of karst underground and surface features depends on the regional tectonic deformation and the Cenozoic extension of the study area.
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Baiyun Cave in Naigu Shilin,Yunnan Karst,China |
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| Authors: | S SEBELA T SLABE J KOGOVSEK Karst Research Institute ZRC SAZU Titov trg Postojn SloveniaLIU HongNature & Culture Conservation Centre China Exploration and Research Society Yunnan Institute of Geography Xuefu Roa Kunming PR Chinaand P PRUNERInstitute of Geology Academy of Sciences of the Czech Republic Rozvojov Prah Czech Republic |
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| Abstract: | The Baiyun cave is a 380 m long karst cave in the Naigu Shilin, situated 70 km southeast of Kunming, Yunnan Province, China. The prevailing orientations of the cave passages are N110°–120°E and N0°‐10°W and those of the fissures in the cave are N30°–40°W and N20°–30°W. The cave is developed in the thick‐bedded Lower Permian Qixia Formation. The cave has an active water flow and is currently at the near water‐table stage. There are large amounts of different infills of cave sediments. The cave shows different stages of paragenesis. The palaeomagnetic analysis of cave sediments shows that their ages are younger than 780 ka B.P. (the Brunhes Chron). The upper part of the sampled profile belongs to the reverse Blake event (112.3–117.9 ka B.P.). The formation of the Baiyun cave is directly connected with the development of the Naigu Shilin. The formation of karst underground and surface features depends on the regional tectonic deformation and the Cenozoic extension of the study area. |
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| Keywords: | Karstology speleogenesis geological structure palaeomagnetic analysis of cave sediments chemical properties of percolated water Baiyun karst cave Naigu Shilin Yunnan China |
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