Two-Dimensional Inversion Magnetotelluric Investigation of the Pariangan Geothermal Field, Indonesia

International Conference on Geoscience

Wahyuni^1 ; Aswad, Sabrianto^1 ; Maria^1 ; Joni, Wiwid^2 ; Jamaluddin^3

Geophysics Departement, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Perintis Kemerdekaan Street, Km. 10, Makassar City, South Sulawesi Province

90245, Indonesia^1

Resource Center of Mineral, Geothermal and Coal, Soekarno Hatta Street, Number 444, Pasirluyu, Regol, Bandung City, West Java

40254, Indonesia^2

Geological Engineering Departement, School of Geosciences, China University of Petroleum, Qingdao, China^3

关键词: Basement rocks;    Caprock;    Complex Marapi Volcanism;    Magnetotelluric;    Reservoir rock;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/279/1/012036/pdf
DOI  :  10.1088/1755-1315/279/1/012036

来源: IOP

【 摘 要 】

Pariangan geothermal field is located in Tanah Datar District, West Sumatera Province, Indonesia. The structure developed in this region is influenced by a large fault that extends through Sumatera from Banda Aceh to the Gulf Semangko in Lampung and also the pattern of radial faults that follow the development of Complex Marapi Volcanism. This study is aimed at delineating the shallow as well as deeper conductive anomalies related to the geothermal system in the Pariangan area. Dimensionality analysis showed a two-dimensional (2D) behavior for the data, and therefore 2D inversion was performed. The result of magnetotelluric (MT) data processing indicates a low resistivity (