TY - JOUR
T1 - IDENTIFICATION OF GEOLOGICAL STRUCTURES IN SIGI REGENCY, CENTRAL SULAWESI BASED ON DERIVATIVE ANALYSIS OF GRAVITY DATA
AU - Rosid, Mohammad Syamsu
AU - Nursarifa, Saskia
AU - Riyanto, Agus
N1 - Funding Information:
On this occasion, the authors would like to thank the Bandung Geothermal Coal Mineral Resource Center for allowing us to use this gravity data to conduct studies and publish the subsurface structures in the Sigi Regency area. Thanks also to the Faculty of Mathematics and Natural Sciences, Universitas Indonesia for their valuable financial assistance through the FMIPA 2021 research grant No. NKB-021/UN2.F3/HKP.05.00/2021 to support this publication process
Funding Information:
On this occasion, the authors would like to thank the Bandung Geothermal Coal Mineral Resource Center for allowing us to use this gravity data to conduct studies and publish the subsurface structures in the Sigi Regency area. Thanks also to the Faculty of Mathematics and Natural Sciences, Universitas Indonesia for their valuable financial assistance through the FMIPA 2021 research grant No. NKB-021/UN2.F3/HKP.05.00/2021 to support this publication process.
Publisher Copyright:
© Int. J. of GEOMATE All rights reserved, including making copies unless permission is obtained from the copyright proprietors
PY - 2023/3
Y1 - 2023/3
N2 - Sigi Regency is part of the tectonic zone in Central Sulawesi which is crossed by an active transform fault, the Palu Koro Fault. The northern region of Sigi Regency has a depression zone that forms a graben by a couple of Palu Koro Faults. The study area is prone to earthquakes and has fairly high geothermal potential. Therefore, it is necessary to control the dynamics of the structure here to mitigate earthquake disasters that may occur and may also affect the surrounding geothermal system. To identify the presence and characterization of the fault structures, derivative analysis of gravity data is used, including analysis of FHD (First Horizontal Derivative), SVD (Second Vertical Derivative), and MS-SVD (Multi Scale-Second Vertical Derivative). From this analysis, 4 normal oblique fractures and 1 normal fracture were identified. Faults derived from the derivative analysis have greatly improved the fault mapping reported on geological maps, including the shifting fault position from the geological map.
AB - Sigi Regency is part of the tectonic zone in Central Sulawesi which is crossed by an active transform fault, the Palu Koro Fault. The northern region of Sigi Regency has a depression zone that forms a graben by a couple of Palu Koro Faults. The study area is prone to earthquakes and has fairly high geothermal potential. Therefore, it is necessary to control the dynamics of the structure here to mitigate earthquake disasters that may occur and may also affect the surrounding geothermal system. To identify the presence and characterization of the fault structures, derivative analysis of gravity data is used, including analysis of FHD (First Horizontal Derivative), SVD (Second Vertical Derivative), and MS-SVD (Multi Scale-Second Vertical Derivative). From this analysis, 4 normal oblique fractures and 1 normal fracture were identified. Faults derived from the derivative analysis have greatly improved the fault mapping reported on geological maps, including the shifting fault position from the geological map.
KW - Gravity data
KW - MS-SVD
KW - Palu Koro Fault
KW - Sigi Regency
UR - http://www.scopus.com/inward/record.url?scp=85150473826&partnerID=8YFLogxK
U2 - 10.21660/2023.103.3426
DO - 10.21660/2023.103.3426
M3 - Article
AN - SCOPUS:85150473826
SN - 2186-2982
VL - 24
SP - 26
EP - 33
JO - International Journal of GEOMATE
JF - International Journal of GEOMATE
IS - 103
ER -