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- Title
STRUCTURAL GEOLOGICAL CHARACTERISTICS OF KARST CAVES AND MAJOR STONE FOREST, YUNNAN, CHINA.
- Authors
ŠEBELA, Stanka; LIU, Hong
- Abstract
Karst areas of Shilin County southeast of Kumning were studied to understand the role of geological structures in the formation of karst features as stone forest and selected caves. Detailed structural geological mapping of fissure orientations within selected caves and of the Major stone forest was accomplished and presented as rose diagrams. Regional geological structures were compared with statistical evaluation of structural geological elements obtained from field mapping. There is a good correlation between surface and underground fissure orientations and cave passage orientations with regionally important fault zones, including the Xiaojiang Fault (N-S direction) and Red River Fault (NW-SE direction). The most frequent cave passages orientation, in a nearly N-S direction, is associated with nearly E-W compression and nearly N-S extension from late Pliocene to mid-Pleistocene. A second tectonic stage from late- Pleistocene to the present, with the tectonic stress field mainly of NNW-SSE compression and NEE-SWW extension, is in accordance with the most frequent fissure orientations in Major stone forest with a direction of N20-30°W (11.4%).
- Subjects
YUNNAN Sheng (China); CHINA; STRUCTURAL geology; KARST; CAVES; FAULT zones; PLEISTOCENE stratigraphic geology
- Publication
Acta Carsologica, 2014, Vol 43, Issue 1, p115
- ISSN
0583-6050
- Publication type
Article
- DOI
10.3986/ac.v43i1.572