Analytical Results of Cam Ranh-Tuy Phong Fault Characteristics and Its Relation to Mud Eruption in Nam Trung Bo Area, Viet Nam

作     者：Truong Thanh Phi Van Thom Bui Dang Manh Nguyen 

作者机构：Hanoi University of Natural Resources and Environment Hanoi Vietnam Institute of Geology Viet Nam Academy of Science and Technology Hanoi Vietnam 

出 版 物：《Journal of Geological Resource and Engineering》 (地质资源与工程（英文版）)

年 卷 期：2016年第4卷第7期

页      面：335-344页

学科分类：07[理学] 

主　　题：Fault zones mud eruption tectonic activities mineral water hot water. 

摘      要：By analyzing the satellite images, topology map, geology map, geomorphology map, and field survey data, this study has determined the Cam Ranh-Tuy Phong fault in the South Central area, Viet Nam has NE-SW orientation and inclines to SE with high slope angle of 70-80°. During the Pliocene-Quaternary period, the Cam Ranh-Tuy Phong fault is left-lateral movement with the extension mechanisms, which formed the graben have an NE-SW orientation, deposited by Quaternary sediment. The fracture systems and fault are the channels for the mineral water and hot water to move up from the deep zone in the area of Cam Thinh Dong, Ha Nhi, Vinh Hao, Nha Me, Tuy Thinh..., and also to be the channels for the mud material, clay and underground water to move from below zone to the surface to form high mud mounds. The analytical results of clay mud have identified clay mineral composition to be main montmorilonit, illite, kaolinite, calcite, chlorite. The occurrence of montmorilonit minerals in this study area is characterized by the alkali-rich environment. The chemical composition of calcite is determined forming in the environment of with pH 〉 9, characterized by the add climates. Besides, other analytical results of clay mud also identified some minerals, such as： ankerite （Fe, Mg）CO3, calcite and some accessory minerals such as： fluorite, lepidocrokit with the participation hydrothermal process.