Grottes et karsts de Chine
Sur les traces de Xu Xiake
Sangedong - 三个洞
Détail
Autres noms : 3 Entrances Cave
Province, Préfecture, District :
Guizhou 贵州省, Anshun Shi 安顺市, Guanling 关岭
Latitude Nord - Longitude Est :
25.81845 - 105.58349
Altitude (m) : 1199
Développement (m) : 760
Profondeur (m) : 70
Profondeur - / + (m) : 70 /
Volume (m3) :
Carte
Description 1
San Ge Dong - 3 Entrances Cave (GZ/Gl/11)
Guizhou, Guanling County, Huajian
N 25° 49’ 6,411” E 105° 35’ 0,549”
Altitude: 1199 m a.s.l.
Cave length: 760 m
Vertical range: -70 m
Exploration: Guizhou 2005
Surveyors: G. Gozzo, S. Meggiorini, D. Avesani (28 Jul. 2005)
Type of research: physical-chemical analyses, biological
Cave description:
The cave entrance is located on a wide cultivated terrace, behind a rock outcrop. The cave was used in the past by the local population for defence; passed the entrance there is a wide collapse dome, followed by two levels of galleries. The first one is inactive, and is at a depth of -20 m, the second one goes 50 m deeper, ending in a lake-siphon. The inactive branch starts behind a stone wall; it is a quite regular gallery more than 200 m long, in some points of an elliptical section, with abundant speleothems. This branch and the active one run in a SW-NE direction, the air circulation is scarce and calcitic flowstones in the terminal section block the passage. The active branch can be reached from the lower part of the collapse room at the entrance: it begins with a steep slide, followed by a gallery with abundant clay deposits, leading to the siphon-lake at 70 m elevation, fed by a stream with a discharge of some tens l/s. Upstream, the river runs in a beautiful phreatic gallery about 100 m long, with clay deposits, leading to the uphill siphon, represented by a second lake occupying the entire surface of the gallery; the end of the cave can be located with some difficulty on the other side of the lake.
(G. Gozzo)
Leonardo Latella, Roberto Zorzin : Caves explored during the scientific expeditions to China of the Museo Civico di Storia Naturale of Verona
Research in South China Karst - Memorie del Museo Civico di Storia Naturale di Verona - 2. serie - Monografie Naturalistiche 3-2008
Analyse : gkc-JPB
Results of the 13 expeditions organized by the Museo Civico di Storia Naturale of Verona to southern China. One-hundred-twenty-five caves were explored, for a total of more than 60 km in length. For each cave we list the progressive number, the cadastral number, the type of research conducted and a short description of the cave. Most of the caves are located in Guizhou Province, in Qianxi County. The hydrogeology, biology, geography and archaeology of the area were investigated during the scientific expeditions. 40 pages, No caves maps, 21 photos.
1587 caractères - Lu 104 Fois
Bibliographie 1
Leonardo Latella, Roberto Zorzin : Caves explored during the scientific expeditions to China of the Museo Civico di Storia Naturale of Verona
Research in South China Karst - Memorie del Museo Civico di Storia Naturale di Verona - 2. serie - Monografie Naturalistiche 3-2008
Results of the 13 expeditions organized by the Museo Civico di Storia Naturale of Verona to southern China. One-hundred-twenty-five caves were explored, for a total of more than 60 km in length. For each cave we list the progressive number, the cadastral number, the type of research conducted and a short description of the cave. Most of the caves are located in Guizhou Province, in Qianxi County. The hydrogeology, biology, geography and archaeology of the area were investigated during the scientific expeditions. 40 pages, No caves maps, 21 photos.
Source : gkc-JPB
Images 0
Topographie 0
Expédition 1
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