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Structural Geology of D-pit at Akara Mining, Pichit Province, North Central Thailand |
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| รหัสดีโอไอ | |
| Creator | Chalermpol Jamduong |
| Title | Structural Geology of D-pit at Akara Mining, Pichit Province, North Central Thailand |
| Contributor | Pitsanupong Kanjanapayont |
| Publisher | Department of Geology, Chulalongkorn University |
| Publication Year | 2554 |
| Journal Title | Bulletin of Earth Sciences of Thailand (BEST) |
| Journal Vol. | 4 |
| Journal No. | 1 |
| Page no. | 44-48 |
| Keyword | Structural geology, Riedal shear, Epitermal gold deposit, Chatree gold deposit |
| URL Website | https://www.bestjournal.org/ |
| Website title | Bulletin of Earth Sciences of Thailand |
| ISSN | 1906-280X |
| Abstract | D-pit, the mineralization zone at Chatree epithermal gold deposits, is located on Loei-PetchabunChanthaburi volcanic belt of Pichit Province, North Central Thailand. This belt has been related to palaeo-oceanic plate and the Indochina terrene subduction causing the gold mineralization structure. The purpose of this study is to analyze the geologic structural data from core-logging and field mapping. Rocks and geologic structures include breccia vein, massive vein, dyke, joint and shear zone inferring the age from older to younger, respectively. Main structures consists the two trends in the NNW-SSE and N-S. Dykes show the N-S major trending and NE-SW minor trend conform with the NE-SW strike-slip fault within Chatree gold mine. Joint developed throughout whole rock units also with N-S trending. The entire structures have major trending in N-S which indicates maximum stress (?1) performs in N-S direction. Sinistral shear zone with dextral shear fracture and sinistral shear fracture indicated ?1 performed in NW-SE direction which is concerned by Riedal shear. Sequences of deformation indicated ?1 performed in N-S direction and changed to NW-SE direction causing the difference in pattern of geological structures during the subduction in Permo-Triassic period. |
