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| Gravity and aeromagnetic responses and heat-controlling structures of Xiongxian geothermal area |
| LI Hong, YU Jian-Bao, LYU Hui, XIAO Peng-Fei |
| SINOPEC Geophysical Research Institute,Nanjing 211103,China |
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Abstract The Xiongxian geothermal area is located on the Niutuozhen buried hill. The shape of hill, characteristics of faults and positions of igneous rocks usually control the heat flowing and the distribution of reservoirs of the geothermal area. In this study, the gravity and aeromagnetic data were processed by using the method of double spectrum signal decomposition and reconstruction. Then the Euler deconvolution inversion revealed the basement framework and the distribution of high-magnetic geological bodies. Based on the previous study, the authors interpreted heat-controlling faults and igneous rocks. The result shows that Niudong fault and Rongcheng fault are the boundaries of heat flowing as well as the channels, and they also can influence the development of surrounding carbonated facture and vug reservoirs. Igneous rocks are mainly in the southwest of Niutuozhen buried hill, and the retained heat plays an import role in the temperature of strata of the geothermal area.
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Received: 02 November 2015
Published: 10 April 2017
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