تعداد نشریات | 161 |
تعداد شمارهها | 6,532 |
تعداد مقالات | 70,501 |
تعداد مشاهده مقاله | 124,098,036 |
تعداد دریافت فایل اصل مقاله | 97,205,611 |
Exploring Geothermal Potential through Multi-Modal Geophysical Data Integration: Gravity, Magnetic, and Magnetotelluric Prospecting | ||
International Journal of Mining and Geo-Engineering | ||
مقاله 9، دوره 57، شماره 4، اسفند 2023، صفحه 427-434 اصل مقاله (1.03 M) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22059/ijmge.2023.364057.595093 | ||
نویسندگان | ||
Ahmad Afshar* 1؛ Gholam Hossain Norouzi2؛ Ali Moradzadeh2 | ||
1Faculty of Mining Engineering, Amirkabir University of Technology, Tehran, Iran. | ||
2School of Mining, College of Engineering, University of Tehran, Tehran, Iran. | ||
چکیده | ||
This study presents a comprehensive geophysical investigation of the Sabalan geothermal area in Iran, utilizing magnetic, gravity, and magnetotelluric (MT) data. These data have been inverted to a depth of 5000 meters. Magnetic data inversion accurately identified faults or fractures. Gravity data inversion produced a density model distinguishing intrusive masses, reservoirs, and cover units. MT data inversion utilized apparent resistivity and phase data for both TM and TE modes. The resulting models were compared with geological cross-sections to assess their accuracy and consistency. The integration of geophysical models yielded a comprehensive geological conceptual model for the Sabalan region. Heat sources, hydrothermal reservoirs, and potential geothermal fluid pathways were identified, demonstrating the effectiveness of geophysical methods in subsurface mapping. Consistency with newer Sabalan models based on drilling and geological data increased confidence in findings. | ||
کلیدواژهها | ||
Geothermal exploration؛ Magnetic؛ Gravity؛ Magnetotelluric data inversion؛ Integrated interpretation؛ Sabalan area | ||
مراجع | ||
[1]. Munoz, G., Exploring for geothermal resources with electromagnetic methods. Surveys in geophysics, 2014. 35(1): p. 101-122.
[2]. Dashti, A. and M. Gholami Korzani, Study of geothermal energy potential as a green source of energy with a look at energy consumption in Iran. Geothermal Energy, 2021. 9(1): p. 28.
[3]. Pearson-Grant, S., P. Franz, and J. Clearwater, Gravity measurements as a calibration tool for geothermal reservoir modelling. Geothermics, 2018. 73: p. 146-157.
[4]. Lichoro, C.M., K. Árnason, and W. Cumming, Resistivity imaging of geothermal resources in northern Kenya rift by joint 1D inversion of MT and TEM data. Geothermics, 2017. 68: p. 20-32.
[5]. Afshar, A., et al., Curie Point Depth, Geothermal Gradient and Heat-Flow Estimation and Geothermal Anomaly Exploration from Integrated Analysis of Aeromagnetic and Gravity Data on the Sabalan Area, NW Iran. Pure and Applied Geophysics, 2017. 174(3): p. 1133-1152.
[6]. Kana, J.D., et al., A review of geophysical methods for geothermal exploration. Renewable and Sustainable Energy Reviews, 2015. 44: p. 87-95.
[7]. Gallardo, L.A. and M.A. Meju, Structure-coupled multiphysics imaging in geophysical sciences. Reviews of Geophysics, 2011. 49(1): p. RG1003.
[8]. Ghaedrahmati, R., et al., 3-D inversion of MT data from the Sabalan geothermal field, Ardabil, Iran. Journal of Applied Geophysics, 2013. 93: p. 12-24.
[9]. Kong, Y., et al., Recent studies on hydrothermal systems in China: a review. 2014. 2: p. 1-12.
[10]. Ussher, G., et al. Understanding the resistivities observed in geothermal systems. in proceedings world geothermal congress. 2000.
[11]. Pandarinath, K., et al., Magnetic susceptibility of volcanic rocks in geothermal areas: application potential in geothermal exploration studies for identification of rocks and zones of hydrothermal alteration. Arabian Journal of Geosciences, 2014. 7(7): p. 2851-2860.
[12]. Mandal, A., et al., Integrated geophysical investigation to map shallow surface alteration/fracture zones of Atri and Tarabalo hot springs, Odisha, India. Geothermics, 2019. 77: p. 24-33.
[13]. Torbehbar, A.K. and M.H. Liseroudi. Geological Classification of Proposed Geothermal Areas of Iran. 2014.
[14]. Shahbazi Shiran, H., Petrogenesis of Quaternary Shoshonitic Volcanism in NE Iran (Ardabil): Implication for Postcollisional Magmatism. Journal of Geological Research, 2013. 2013: p. 11.
[15]. Amini, Meshkin Shahr Geological Map in Scale of 1/100000. 1998, GSI: Iran.
[16]. Bogie, I., K. Khosrawi, and B. Talebi, Geological results from the drilling of the Northwest Sabalan geothermal project, Iran. Proceedings, WGC, 2005.
[17]. Li, Y. and D.W. Oldenburg, 3-D inversion of magnetic data. Geophysics, 1996. 61(2): p. 394-408.
[18]. Li, Y. and D.W. Oldenburg, 3-D inversion of gravity data. Geophysics, 1998. 63(1): p. 109-119.
[19]. Cella, F. and M. Fedi, Inversion of potential field data using the structural index as weighting function rate decay. Geophysical Prospecting, 2012. 60(2): p. 313-336.
[20]. Rao, D.B., M. Prakash, and N.R. Babu, 3D AND 2½ D MODELLING OF GRAVITY ANOMALIES WITH VARIABLE DENSITY CONTRAST. Geophysical Prospecting, 1990. 38(4): p. 411-422.
[21]. Rao, D.B. and N.R. Babu, A rapid method for three-dimensional modeling of magnetic anomalies. Geophysics, 1991. 56(11): p. 1729-1737.
[22]. Oldenburg, D.W. and Y. Li, Inversion for applied geophysics: A tutorial. Near-surface geophysics: SEG, 2005: p. 89-150.
[23]. Booker, J.R., The magnetotelluric phase tensor: a critical review. Surveys in Geophysics, 2014. 35(1): p. 7-40.
[24]. Caldwell, T.G., H.M. Bibby, and C. Brown, The magnetotelluric phase tensor. Geophysical Journal International, 2004. 158(2): p. 457-469.
[25]. Wannamaker, P.E., J.A. Stodt, and L. Rijo, A stable finite element solution for two-dimensional magnetotelluric modelling. Geophysical Journal International, 1987. 88(1): p. 277-296.
[26]. Franke, A., R.-U. Börner, and K. Spitzer, Adaptive unstructured grid finite element simulation of two-dimensional magnetotelluric fields for arbitrary surface and seafloor topography. Geophysical Journal International, 2007. 171(1): p. 71-86.
[27]. Degroot-Hedlin, C. and S. Constable, Occam's inversion to generate smooth, two-dimensional models from magnetotelluric data. Geophysics, 1990. 55(12).
[28]. Constable, S.C., R.L. Parker, and C.G. Constable, Occam’s inversion: A practical algorithm for generating smooth models from electromagnetic sounding data. Geophysics, 1987. 52(3): p. 289-300.
[29]. Aprea, C., J.R. Booker, and J.T. Smith, The forward problem of electromagnetic induction: accurate finite-difference approximations for two-dimensional discrete boundaries with arbitrary geometry. Geophysical Journal International, 1997. 129(1): p. 29-40.
[30]. Seyedrahimi-Niaraq, M., et al., Development of an updated geothermal reservoir conceptual model for NW Sabalan geothermal field, Iran. Geothermal Energy, 2017. 5(1): p. 14. | ||
آمار تعداد مشاهده مقاله: 283 تعداد دریافت فایل اصل مقاله: 270 |