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Journal articles on the topic 'Bouguer anomaly map'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Maulana, Aji Darma, and Aprilia Frinanda Setiawan. "PENINGKATAN AKURASI COMPLETE BOUGUER ANOMALY MAP PADA DATA TOPEX SATELLITE MENGGUNAKAN KONSTANTA BARU BERDASARKAN MATHEMATICAL DERRIVATIVE." JURNAL TEKNIK GEOLOGI : Jurnal Ilmu Pengetahuan dan Teknologi 5, no. 2 (2023): 22. http://dx.doi.org/10.30872/jtgeo.v5i2.5463.

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Penelitian dilakukan dengan menggunakan data gravitasi observasi satelit TOPEX dengan luas area sebesar 37.530 km2 berupa Free Air Anomaly. Penelitian berbasis analisis ini berlandaskan ketidaksesuaian antara dinamika geologi dengan data pengolahan gravitasi conventional. Dengan menekankan pada pengolahan gravitasi secara unconventional, analisis ini bertujuan untuk mendapatkan besaran yang dapat mereduksi efek topografi tanpa menghilangkan informasi litologi. Pengolahan dilakukan dengan cara membandingkan beberapa variasi perlakuan koreksi Bouguer pada nilai Free Air Anomaly. Perlakuan terseb

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Keating, Pierre. "Interpretation of the gravity anomaly field in the Noranda – Val d'Or region, Abitibi Greenstone Belt, Canadian Shield." Canadian Journal of Earth Sciences 29, no. 5 (1992): 962–71. http://dx.doi.org/10.1139/e92-080.

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Gravity data from the Noranda – Val d'Or region have been reprocessed: the Bouguer anomaly map, the first vertical derivative map, and an apparent density map have been used for geological interpretation of the gravity field in this region. It is found that variations in the Bouguer anomaly can be mainly explained by density structures located within the uppermost 5 km of the crust. The vertical derivative map helps to better locate some geological contacts, and the apparent density map allows the easy distinction between thin and thick batholiths. Generalized inversion was used to calculate d

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Ilmi, Nasyratul, and Karyanto Karyanto. "PEMODELAN 3D STRUKTUR BAWAH PERMUKAAN GUNUNGAPI AGUNG PROVINSI BALI MENGGUNAKAN METODE GAYA BERAT." Jurnal Geofisika Eksplorasi 5, no. 2 (2020): 68–75. http://dx.doi.org/10.23960/jge.v5i2.30.

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Under surface structure, 3d modelling of Agung volcano in Bali had been conducted by using gravity methods. This research aims to identify the magma chamber and make a model below the surface of the Great Volcano of Bali Province by using gravity anomaly data. Data processing methods performed in this research were consists of six steps: (i) arrangement the contour map of Bouguer anomaly, (ii) spectrum analysis, (iii) anomaly regional and residual separation, (iv) Second Vertical Derivative analysis, (v) cross-section of subsurface geology construction by using 3D (inverse modelling), (vi) qua

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Gunawan, Hendra, Micheldiament Micheldiament, and Valentin Mikhailov. "Estimation of Bouguer Density Precision: Development of Method for Analysis of La Soufriere Volcano Gravity Data." Indonesian Journal on Geoscience 3, no. 3 (2008): 151–59. http://dx.doi.org/10.17014/ijog.3.3.151-159.

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http://dx.doi.org/10.17014/ijog.vol3no3.20084The precision of topographic density (Bouguer density) estimation by the Nettleton approach is based on a minimum correlation of Bouguer gravity anomaly and topography. The other method, the Parasnis approach, is based on a minimum correlation of Bouguer gravity anomaly and Bouguer correction. The precision of Bouguer density estimates was investigated by both methods on simple 2D syntetic models and under an assumption free-air anomaly consisting of an effect of topography, an effect of intracrustal, and an isostatic compensation. Based on simulati

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Al Shida Natul and Leni Sophia Heliani. "A Comparison of Geologic Structure Detection of Sumatera Island Using Goce Satellite Gravity Data and Sgg-Ugm-2 Data." Journal of Geoscience, Engineering, Environment, and Technology 7, no. 3 (2022): 95–101. http://dx.doi.org/10.25299/jgeet.2022.7.3.8863.

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GOCE gravity satellite data can be used for regional fault detection because the observation area is wide and not limited by area. In this study, GOCE satellite data is used to detect geological structures on the island of Sumatra, the results of which are used as the basis for disaster mitigation. GOCE data and SGG-UGM-2 were processed using the GOCE User Toolbox (GUT) software to produce a gravity disturbance map and a complete bouguer anomaly map. The GOCE obtained results were validated using the SGG-UGM-2 high-resolution gravity model data. The calculation results obtained that the gravit

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Threza, Imelda, Winardi Tjahyo Baskoro, Ida Bagus Alit Pramarta, I. Ketut Sukarasa, Putu Suardana, and I. Wayan Supardi. "IDENTIFIKASI STRUKTUR BAWAH PERMUKAAN BERDASARKAN DATA ANOMALI GRAVITASI DI PULAU LOMBOK." Kappa Journal 8, no. 1 (2024): 120–29. https://doi.org/10.29408/kpj.v8i1.25139.

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Abstract: Research on the identification of subsurface structures based on gravity anomaly data on Lombok Island. This research aims to create a map and determine the value of the complete Bouguer anomaly, regional anomaly, residual anomaly, subsurface density value and create a 2-D model of the subsurface structure. The data used is secondary data, namely satellite gravity anomaly data obtained from the topex website. Data processing in this research uses the gravity method. In this method, gravity correction will be carried out, making a complete bouguer anomaly map, conducting spectrum anal

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Siombone, Salman Hamja, Adi Susilo, and Sukir Maryanto. "Integration of Topex Satellite Gravity and DEM SRTM Imagery for Subsurface Structure Identification at Tiris Geothermal Area, Lamongan Volcano Complex, Probolinggo, East Java." POSITRON 12, no. 2 (2022): 98. http://dx.doi.org/10.26418/positron.v12i2.56880.

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Tiris area is one area that has geothermal prospects. Tiris area is located in the Tiris sub-district, Probolinggo regency, East Java. This study aims to identify the subsurface structure of the Tiris geothermal area using Topex gravity and DEM SRTM imagery data. The Topex gravity data obtained is still in Free Air Anomali (FAA) form, so it is necessary to make Bouguer and terrain corrections to get a complete Bouguer anomaly. A residual Bouguer anomaly is needed to study shallow subsurface structures. This anomaly is obtained by separating the residual and regional anomalies from the complete

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Sabri, Laode M., Bambang Sudarsono, Jamal Jamal, and Sonny Mawardi. "GENERATING BOUGUER ANOMALY MAP FROM AIRBORNE GRAVITY DATA (A CASE STUDY IN SOUTH EAST SULAWESI)." Elipsoida : Jurnal Geodesi dan Geomatika 3, no. 02 (2020): 151–56. http://dx.doi.org/10.14710/elipsoida.2020.9213.

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Terrestrial measurements can provide accurate gravity data, but it is costly and time-consuming for large and remote area. Airborne gravity measurements have actually been carried out in Indonesia since 2008 by Technical University of Denmark (DTU) in collaboration with the Geospatial Information Agency (BIG). Purpose of the project was to develop a geoid model used for converting elevations from GPS/GNSS measurements that refers to ellipsoid to orthometric elevations that refer to sea level. The data can actually be explored so that it can be used for geophysical and other geoscience purposes

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Medved, Klemen, Oleg Odalović, and Božo Koler. "New Bouguer Anomaly Map for the Territory of the Slovenia." Remote Sensing 13, no. 22 (2021): 4510. http://dx.doi.org/10.3390/rs13224510.

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The existing Bouguer anomaly map, which covers the territory of the Republic of Slovenia is a few decades old. Since then, quite a few new gravimetric measurements (data) for the territory of Slovenia as well as high quality digital terrain models that are needed for creating such a map have been made available. The methodology and standards for creating gravity anomaly maps are also changing. Thus, the national Bouguer anomaly map was updated. There were some gross errors detected in the set of old gravimetric data. Additionally, the influence of new updated gravimetric data was analyzed. The

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Sihombing, Roy Bryanson, and Rustadi Rustadi. "PEMODELAN DAN ANALISA STRUKTUR BAWAH PERMUKAAN DAERAH PROSPEK PANASBUMI KEPAHIANG BERDASARKAN METODE GAYABERAT." Jurnal Geofisika Eksplorasi 4, no. 2 (2020): 47–61. http://dx.doi.org/10.23960/jge.v4i2.14.

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Research has been conducted in Kepahiang area using gravity data with the aim of identify faults based on analysis of the Second Vertical Derivative (SVD) and interpreting structure sub-surface of the based on 3D inverse modelling from Bouguer anomaly and residual anomaly. The research area have an Bouguer anomaly between 38 mGal - 74 mGal, where the high Bouguer anomaly value has a value range of 63,2 mGal - 74 mGal located in the southwest direction of the research area. Whereas the low Bouguer anomaly value has a range of values 38 mGal - 47 mGal located in the north of the research area. T

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Bakkali, Saad. "THE USE OF THE LOGARITHMIC IMAGE PROCESSING APPLIED TO ANALYSING BOUGUER GRAVITY ANOMALY MAP (TANGIER-TETUAN’S AREA -MOROCCO)." Nexo Revista Científica 28, no. 2 (2017): 97–107. http://dx.doi.org/10.5377/nexo.v28i2.3479.

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Image processing is a powerful tool for the enhancement of edges in images used in the interpretation of geophysical potential field data. Arial and terrestrial gravimetric surveys were carried out in the region of Tangier-Tetuan. From the observed and measured data of gravity Bouguer gravity anomalies map was prepared. This paper reports the results and interpretations of the transformed maps of Bouguer gravity anomaly of the Tangier-Tetuan area using the logarithmic image processing. Filtering analysis based on classical image process was applied. Operator image process like the logarithmic

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Bakkali, Saad, and Mahacine Amrani. "Analysing the enhancement edges of the Bouguer gravity anomaly map using sunshading method (area of the Tangier-Tetuan, Morocco)." Revista Facultad de Ingeniería Universidad de Antioquia, no. 39 (August 1, 2014): 69–78. http://dx.doi.org/10.17533/udea.redin.20191.

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Sunshading is a powerful tool for the enhancement of edges in images. Given the azimuth and elevation of a source of illumination, it calculates the reflectance from a surface which is composed of the data to be interpreted. It is a standard tool used in the interpretation of geophysical potential field data. Aerial and terrestrial gravimetric surveys were carried out in the region of Tangier-Tetuan. From the observed and measured data of gravity Bouguer a gravity anomaly map was prepared. This paper reports the results and interpretations of the sunshaded maps of Bouguer gravity anomaly of th

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Wahyudi, E. J., A. Laesanpura, and W. Aji. "Gravity data processing of field camp geophysics in Karangsambung (2005-2019)." Journal of Physics: Conference Series 2243, no. 1 (2022): 012017. http://dx.doi.org/10.1088/1742-6596/2243/1/012017.

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Abstract Gravity data was collected from a previous survey in Karangsambung 2005-2019 (before the restriction of field camp activities due to the Covid-19 pandemic). Luk-Ulo Mélange Complex in the Karangsambung area has been the subject of local and regional studies for geoscience students due to the interesting exposure of outcrops that have been interpreted as product of subduction (the Indo-Australian plate under the Eurasian plate in the Late Cretaceous to Early Paleocene time). The data for this gravimetric study based on 2592 observations over an area of inside (9.1 × 9.1) square kilomet

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14

Wiyono, Salman Hamja Siombone, and Sukir Maryanto. "Gravity and Remote Sensing Methods as a Solution in Identifying Geothermal Reservoirs on Volcanoes." International Journal of Geophysics 2022 (September 13, 2022): 1–13. http://dx.doi.org/10.1155/2022/9737979.

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Tiris Village, Lamongan Volcano complex is an area that has geothermal potential. The existence of geothermal potential in this study was identified using the gravity method combined with remote sensing methods. Remote sensing method is used to obtain a map of the distribution pattern of the soil surface temperature and a map of the continuity of the straightness and fault structure. The data used in the remote sensing method is secondary data in the form of Landsat-8 imagery and DEM SRTM 1 arc. Processing of the soil surface temperature map was obtained by using thermal infrared processing ND

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15

Kamtono, Kamtono, and D. D. Wardhana. "Nose Structure Delineation of Bouguer Anomaly as the Interpretation Basis of Probable Hydrocarbon Traps: A Case Study on the Mainland Area of Northwest Java Basin." Indonesian Journal on Geoscience 7, no. 3 (2012): 157–66. http://dx.doi.org/10.17014/ijog.7.3.157-166.

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DOI: 10.17014/ijog.v7i3.144Two important aspects in the exploration of oil and gas are technology and exploration concepts, but the use of technology is not always suitable for areas with geological conditions covered by young volcanic sediments or limestone. The land of the Northwest Java Basin is mostly covered by young volcanic products, so exploration using seismic methods will produce less clear image resolution. To identify and interpret the subsurface structure and the possibility of hydrocarbon trap, gravity measurements have been carried out. Delineation of nose structures of a Bougue

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Sanchez-Rojas, Javier. "New Bouguer Gravity Maps of Venezuela: Representation and Analysis of Free-Air and Bouguer Anomalies with Emphasis on Spectral Analyses and Elastic Thickness." International Journal of Geophysics 2012 (2012): 1–15. http://dx.doi.org/10.1155/2012/731545.

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A new gravity data compilation for Venezuela was processed and homogenized. Gravity was measured in reference to the International Gravity Standardization Net 1971, and the complete Bouguer anomaly was calculated by using the Geodetic Reference System 1980 and 2.67 Mg/m3. A regional gravity map was computed by removing wavelengths higher than 200 km from the Bouguer anomaly. After the anomaly separation, regional and residual Bouguer gravity fields were then critically discussed in term of the regional tectonic features. Results were compared with the previous geological and tectonic informati

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Arisbaya, Ilham, Bambang Sugiarto, Achmad Fakhrus Shomim, Nuraeni Rahma Hanifa, and Lina Handayani. "Preliminary Investigation of the Relationship Between Gravity Anomalies and Seismic Hazard along Lembang Fault." IOP Conference Series: Earth and Environmental Science 1479, no. 1 (2025): 012019. https://doi.org/10.1088/1755-1315/1479/1/012019.

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Abstract The Lembang fault, a significant geological feature in the Greater Bandung agglomeration area, is one of the main active faults on the island of Java, Indonesia. A historical low-magnitude earthquake of M3.3 in 2011 just above the Lembang Fault in the Muril village caused damage to hundreds of houses. This study explores the relationship between seismic hazard and subsurface structures using published gravity data integrated with the VS30 global mosaic map to provide a comprehensive analysis of the seismic hazard implications along the Lembang Fault. Our preliminary study sheds light

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Albora, A. Muhittin, Osman N. Ucan, Atilla Ozmen, and Tulay Ozkan. "Separation of Bouguer anomaly map using cellular neural network." Journal of Applied Geophysics 46, no. 2 (2001): 129–42. http://dx.doi.org/10.1016/s0926-9851(01)00033-7.

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19

Rasif, Nahari, Benedictus Dicky Pradnya Agung Pramudhita, Alfin Alamsyah Ilman, Mohammad Singgih Purwanto, and Amien Widodo. "Correlation Of Residual Anomaly and Isoseismal Map by Using Power Spectral Density Method in Palu City Region." IOP Conference Series: Earth and Environmental Science 936, no. 1 (2021): 012017. http://dx.doi.org/10.1088/1755-1315/936/1/012017.

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Abstract This research was conducted to see the correlation between residual anomaly map, geological map, and isoseismal map and how they contribute to the determination of earthquake-prone areas. Moreover, the area studied is an area that is difficult to obtain geophysical data such as urban areas. The residual anomaly is obtained by calculating the bouguer anomaly from elevation data and free-air correction satellite, which then through the FFT process changes the spatial domain to the frequency domain in MATLAB. Thus, it can separate regional anomaly maps with residuals. Using the overlayin

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Talib, Ban, Emad H. Al-Khersan, and Ahmed S. Al-Banna. "studying The Boundaries of The Tectonic Zones South of Latitude 32◦ of Iraq Using Trend Surface Analysis method." Journal of Petroleum Research and Studies 13, no. 1 (2023): 1–15. http://dx.doi.org/10.52716/jprs.v13i1.650.

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A geophysical study investigation was conducted in the southern part of Iraq bounded by coordinates; longitudes (39◦ - 48◦) East and latitude (29◦ - 32◦) North. This study includes analysis and interpretation of the potential data (gravity and magnetic) derived from the Bouguer anomaly map and Aeromagnetic total field intensity map of Iraq both of them is within the scale of (1: 1,000,000) and do comparison with the information available from geological maps, which include Tectonic, Hydrological and Geological information. Gravity and Magnetic maps of the study area were digitized at a grid in

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Amelia, Tri, Khafidh Nur Aziz, Rahmawati Fitrianingtyas, et al. "Subsurface Modelling of the Progo River Area Using Euler Deconvolution of Topex Gravity Data." IOP Conference Series: Earth and Environmental Science 1425, no. 1 (2024): 012030. https://doi.org/10.1088/1755-1315/1425/1/012030.

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Abstract This study explores the subsurface characteristics of the Progo River area in Yogyakarta, Indonesia, using TOPEX satellite gravity data to investigate the Progo Fault. Understanding this fault is crucial, as it poses a significant earthquake risk like the 2006 Yogyakarta earthquake. The analysis focused on deriving the Complete Bouguer Anomaly (CBA), performing Euler deconvolution, and constructing a 2D subsurface model to enhance the understanding of the area’s geological structure. The research derived the Complete Bouguer Anomaly (CBA), ranging from 87.6 mGal to 134.4 mGal, and per

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Naufal, Muhammad Z., Juan Pandu Gya Nur Rochman, Agnis Triahadini, et al. "A Study of Lineament Density and Correlation Residual Gravity Anomalies to Identify Pacul Fault in Mount Pandan, East Java." IOP Conference Series: Earth and Environmental Science 1418, no. 1 (2024): 012064. https://doi.org/10.1088/1755-1315/1418/1/012064.

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Abstract This study analyzes the identified Pacul Fault using lineament density and residual gravity anomalies in Mount Pandan, East Java. The study utilizes DEMNAS data, geological data, and gravity satellites. The research process includes creating hill shades from DEM data, extracting lineaments using PCI Geomatica software, and interpolating data to create a lineament density map. Further analysis correlates lineament density and residual anomaly with the fault zone around the Pacul Fault. The results show that fault zones are located in areas with moderate to high lineament density and at

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Sarkowi, Muh, and Rahmat Catur Wibowo. "Geothermal Reservoir Identification based on Gravity Data Analysis in Rajabasa Area- Lampung." RISET Geologi dan Pertambangan 31, no. 2 (2021): 77. http://dx.doi.org/10.14203/risetgeotam2021.v31.1164.

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Gravity research in the Rajabasa geothermal prospect area was conducted to determine geothermalreservoirs and faults as reservoir boundaries. The research includes spectrum analysis and separation of the Bouguer anomaly to obtain a residual Bouguer anomaly, gradient analysis using the second vertical derivative (SVD) technique to identify fault structures or lithological contact, and 3D inversion modeling of the residual Bouguer anomaly to obtain a 3D density distribution subsurface model. Analysis was performed based on all results with supplementary data from geology, geochemistry, micro-ear

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Nafian, Muhammad, Belista Gunawan, and Nanda Ridki Permana. "2D Forward Modeling Geothermal System Gravity Data in South Solok Region, West Sumatra." Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics 4, no. 1 (2021): 36–44. http://dx.doi.org/10.15408/fiziya.v4i1.20235.

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Indonesia has the greatest potential for geothermal energy in the world. Geothermal has an important role as an alternative fuel because it is a renewable energy source, but its use has not been maximized. One of the areas that have the greatest potential for geothermal energy in South Solok, West Sumatra. Therefore, this study was conducted to determine the geothermal system in the South Solok area, West Sumatra by using the gravity method. The gravity data processing stage requires some software to get the CBA value(Complete Bouguer Anomaly), map contours of the CBA. Anomaly separation with

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Doğru, Fikret, and Oya Pamukçu. "Gravity Tensors and Moho Depth Variations of the Region between West Italy and Eastern of Caspian Sea." Deu Muhendislik Fakultesi Fen ve Muhendislik 26, no. 77 (2024): 218–30. http://dx.doi.org/10.21205/deufmd.2024267704.

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The crust structure of the region from the west of Italy to the east of the Caspian Sea was examined within the scope of this study. In addition, the effect of both the shallow and deep structure were revealed by calculating the gravity tensors of the region in different degrees. For this purpose, the spherical free air gravity anomaly of the region was first calculated. The combination of EGM2008 and GOCE DIR R4 models were used for this calculation. Then the gravity tensors of the region were calculated separately using only EGM2008 model and only GOCE DIR R4. The spherical free air anomaly

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Tagni-Ayissi, Mballa, Alain Zanga-Amougou, Arsene Meying, Harry Dylan Tchomwa Geubou, and Théophile Ndougsa-Mbarga. "Investigation of the Superficial Structures of the Foumban Area (West Cameroon) Based on Spectral Analysis and 3D Modelling." Asian Journal of Basic Science & Research 05, no. 04 (2023): 112–29. http://dx.doi.org/10.38177/ajbsr.2023.5407.

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The main objective of this study is to characterise the superficial structures of Foumban area. To achieve this, a sample of data from the gravity map of Cameroon is used to build a new Bouguer map to the studied area. The finite element method is used to separate the Bouguer anomalies into regional and residual anomalies. Given that the signatures of gravity anomalies related to surface structures are perceptible on the residual anomaly map, a qualitative analysis of this map helped to identify three anomaly domains in the north-western, central and north-eastern parts of the studied area. Th

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Al-Saadi, O. S., and H. A. Al-Saady. "Processing and re-interpretation of gravity bouguer map of a selected area in the W-NW of Iraq." IOP Conference Series: Earth and Environmental Science 1300, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1755-1315/1300/1/012002.

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Abstract Geophysical data interpretation is crucial in characterizing the subsurface structure. The Bouguer gravity map analysis of the W-NW region of Iraq serves as the basis for the current geophysical research. The Bouguer gravity data were processed using the Power Spectrum Analysis method. Four depth slices have been acquired after the PSA process, which are: 390 m, 1300 m, 3040 m, and 12600 m depth. The gravity anomaly depth maps show that shallow-depth anomalies are mainly related to the sedimentary cover layers and structures, while the gravity anomaly of the deeper depth slice of 1260

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Pant, P. R., B. N. P. Agarwal, K. Choudhury, and S. P. Dasgupta. "Significant Inferences on Deep Crustal Structure of Deccan Trap Region from Spectral Analyses of Bouguer Anomalies." Journal Geological Society of India 53, no. 3 (1999): 315–28. http://dx.doi.org/10.17491/jgsi/1999/530304.

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Abstract Qualitative interpretation of the regional Bouguer anomaly map of the Deccan Trap region of peninsular India, based on the anomaly size, its gradient and minor contribution from the shallow crust assessed by the results of other geophysical methods, suggests that the major part of the these anomalies have deep seated origin with 'lows' corresponding to the zones of subsidence and 'highs' to the uplifts involving the crust. Deep faults along the west coast and segmented faults demarcating the Narmada rift valley and Narmada-Son Lineament (NSL) have been delineated. Spectral analysis, m

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Rocha, Paula Lúcia Ferrucio da, and Luiz Fernando Santana Braga. "Análise e interpretação de dados gravimétricos nas porções terrestre e marítima do Brasil Meridional." Anuário do Instituto de Geociências 20 (January 1, 1997): 201–14. http://dx.doi.org/10.11137/1997_0_201-214.

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We have interpreted the Bouguer anomaly map from South Brazil and its adjoining oceanic areas, using the land data from the SAGP Project (1990), and the marine data derived from GEOSAT. With the aid of the vertical derivatives and the maximum horizontal gradientes of the Bouguer anomalies we have mapped the boundaries between the major lithospheric compartments, here characterized by their gravity signatures. Two dimensional gravity modelling with available geological constraints have also been performed aiming to estimate the crustal thicknesses within each individual compartment. We show tha

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Abdelrahman, E. M., S. Riad, E. Refai, and Y. Amin. "On the least‐squares residual anomaly determination." GEOPHYSICS 50, no. 3 (1985): 473–80. http://dx.doi.org/10.1190/1.1441925.

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This paper discusses an approach to determine the least‐squares optimum order of the regional surface which, when subtracted from the Bouguer gravity anomaly data, minimizes distortion of the residual component of the field. The least‐squares method was applied to theoretical composite gravity fields each consisting of a constant residual component (sphere or vertical cylinder) and a regional component of different order using successively increasing orders of polynomial regionals for residual determination. The overall similarity between each two successive residual maps was determined by com

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Osorio Riffo, Álvaro, Guillaume Mauri, Adriano Mazzini, and Stephen A. Miller. "Tectonic insight and 3-D modelling of the Lusi (Java, Indonesia) mud edifice through gravity analyses." Geophysical Journal International 225, no. 2 (2021): 984–97. http://dx.doi.org/10.1093/gji/ggab020.

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SUMMARY Lusi is a sediment-hosted hydrothermal system located near Sidoarjo in Central Java, Indonesia, and has erupted continuously since May 2006. This mud eruption extends over a surface of ∼7 km2, and is framed by high containment dams. The present study investigates the geometry of the subsurface structures using a detailed gravimetric model to visualize in 3-D the Lusi system and surrounding lithologies. The obtained residual Bouguer anomaly map, simulated through geostatistical interpolation methods, supports the results of previous deformation studies. The negative gravity anomaly zone

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Okwesili, Ngozi A., John A. Yakubu, and Ngozi M. Ossai. "AEROGRAVITY DATA ANOMALIES INVESTIGATION WITHIN LAFIA AND AKIRI AREAS, MIDDLE BENUE TROUGH, NIGERIA EMPLOYING FORWARD AND INVERSE MODELLING TECHNIQUE." Earth Science Malaysia 8, no. 2 (2024): 143–50. https://doi.org/10.26480/esmy.02.2024.143.150.

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The aerial gravity data of Lafia and Akiri areas were interpreted quantitatively to map surface and deep earth structures responsible for the gravity anomalies within the study area. This entails using grids on which the anomalous values obtained at different stations are plotted and contours drawn at appropriate intervals using Oasis Montaj software. The Bouguer anomaly obtained from the study varies from -66.0 mGal to 28.4 mGal while the residual Bouguer anomaly is from -30.5 mGal to 27.7 mGal. The Bouguer gravity data was subjected to forward and inverse modeling analysis using PotentQ 3D s

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VLĂȘCEANU, Costin Viorel, Mihail Valentin BATISTATU, and Ioana Cornelia MITREA. "GEOLOGICAL STRUCTURE OF EASTERN SUBPARPATHIANS IN MUNTENIA AS REFLECTED BY THE GRAVITY ANOMALY." EMERG - Energy. Environment. Efficiency. Resources. Globalization 10, no. 3 (2024): 107–26. http://dx.doi.org/10.37410/emerg.2024.3.07.

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Based on a geographical material involving: the Bouguer anomaly map calculated for average densities, three simulations of the regional and local successive anomaly separated by square networks with sides of 1, 2 and 4 km, the structure of the gravity anomaly was analyzed namely: the distribution of the belts of the major gradient, the regional anomaly (morphology of the regional anomaly, separation degree of the regional anomaly, presence of a local anomaly with deep geological sources, gravimetric effects of maximum), the local anomaly (modification of the morphology and the intensity of the

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Mahajan, A. K., Surendar Kumar, and S. K. Chabak. "Local Gravity Anomaly and Geotectonics in the Dharamsala Palampur Area, Northwest Himalaya." Journal Geological Society of India 50, no. 1 (1997): 75–84. http://dx.doi.org/10.17491/jgsi/1997/500113.

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Abstract Gravity survey in the station spacing of about 2 km was carried out in Dhararnsala-Palampur area (36 x 20 km) of the northwest Himalaya to study the seismotectonics of the region. The regional trend of Bouguer anomaly shows general decrease from -230 mGal to -250 mGal from south to north. The present gravity survey in DhararnsaIa-Palampur area has brought out some gravity highs trending transverse to the Himalayan trend. The presence of gravity high zone in the central portion of the study area near Yol may indicate either an anticlinal structure or emplacement of denser material from

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KRÓLIKOWSKI, C., and Z. PETECKI. "Crustal structure at the Trans-European Suture Zone in northwest Poland based on gravity data." Geological Magazine 134, no. 5 (1997): 661–67. http://dx.doi.org/10.1017/s0016756897007395.

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A new gravity model of the crustal structure of the Trans-European Suture Zone in the northwestern Poland has been constructed. The Bouguer anomaly map, obtained after stripping off the three-dimensional gravity effect of the sedimentary cover down to the Zechstein formations, is characterized by a 50 mGal gravity anomaly. We have assumed that the short-wavelength components derive from upper crustal intrusions and the long-wavelength components reflect crustal thickness and lateral heterogeneity which are strongly supported by the new seismic data along the LT-7 geotraverse. Quantitative mode

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Martinez, Patricia, Mario Gimenez, Andres Folguera, and Federico Lince Klinger. "Integrated seismic and gravimetric model of Jocolí Basin, Argentina." Interpretation 2, no. 2 (2014): T57—T68. http://dx.doi.org/10.1190/int-2012-0022.1.

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Gravity measurements and reinterpretations of previously released seismic lines were made, focusing on the provincial border between neighboring provinces San Juan and Mendoza. A Bouguer anomaly map was obtained after the processing of gravimetric data, which were previously filtered, to obtain the Bouguer residual anomalies used for studying the geologic structures located on the upper crust. The analysis of these Bouguer residual anomalies allowed identification of the Jocolí Basin in a foreland position within a triangle zone at the boundary of the Precordillera fold-and-thrust belt with th

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Rinanda, Shelya Trya. "Identification of the Subsurface Structure of the Great Sumatra Fault Dikit Segment Based on First Horizontal Derivative (FHD), Second Vertical Derivative (SVD), and Forward Modelling Analyses Forward Modelling of 2D Gravity Anomaly Data." Jurnal Geofisika 22, no. 2 (2024): 13. https://doi.org/10.36435/jgf.v22i2.631.

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The Dikit segment has a length of 66.19067 km, located at coordinates 2.291° - 2.748° N and 101.155° - 101.599° E. This segment shows tectonic activity with a slip rate of 9-11 mm/year. One of the effective Geophysical methods to recognise the presence of faults is the gravity method. The purpose of this study is to determine the distribution pattern of heavy force anomalies and to identify subsurface structures in the Dikit segment area by taking GGMPlus heavy force anomaly data. Based on the Bouguer anomaly value, the high anomaly in this area is controlled by the presence of metamorphic roc

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KUMAR, RAJAN, and ANIL KUMAR SINGH. "Delineation of subsurface features by gravity technique in parts of Shivpuri District, M.P." MAUSAM 72, no. 3 (2021): 661–68. http://dx.doi.org/10.54302/mausam.v72i3.1316.

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This research paper represents the search of faults/ fractures/ shear zones/ altered zones, to find out mineral target zones in part of Shivpuri district, M.P. Geologically, the study area is represented by Vindhyan Supergroup of Meso to Neoproterozoic age. The area is mainly covered by alluvium which is characterized river gravels, sand and residual soil. The gravity survey was carried out with a station density of 1 gravity station per 2.5 sq km along with elevations of each gravity stations covered 2800 sq km. The rock samples have been collected from different litho-units of the study area

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Kamto, Paul Gautier, Willy Lemotio, Alain-Pierre Kamga Tokam, and Loudi Yap. "Combination of Terrestrial and Satellite Gravity Data for the Characterization of the Southwestern Coastal Region of Cameroon: Appraisal for Hydrocarbon Exploration." International Journal of Geophysics 2021 (June 23, 2021): 1–14. http://dx.doi.org/10.1155/2021/5554528.

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The southwestern coastal region of Cameroon is an area of interest because of its hydrocarbon potential (gas and oil). Terrestrial and satellite gravity data were combined and analyzed to provide a better precision in determining the structure of the study area. Firstly, the two gravity databases (in situ and satellite) have been coupled and validated using the least square collocation technique. Then, spectral analysis was applied to the combined Bouguer anomaly map to evaluate the thickness of sediments in some localities. We found that the sedimentary cover of the southwestern coastal regio

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Tobing, Alfha Abrianto L., I. Ketut Sukarasa, and Mahmud Yusuf. "Analysis of gravity anomaly and seismicity in Bali region." International journal of physical sciences and engineering 5, no. 3 (2021): 34–43. http://dx.doi.org/10.53730/ijpse.v5n3.1723.

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This study aims to determine the value of the gravity anomaly in the Bali region, identify the fault structure in the Bali region using gravity interpretation and analyze the relationship between gravity anomaly and seismicity in the Bali region. The data used is secondary data, namely satellite gravity anomaly data obtained from the topex website and earthquake data obtained from the Indonesian Agency for Meteorological, Climatological, and Geophysics (BMKG) catalog. Data processing in this study was done using gravity and Second Vertical Derivative (SVD) methods. We used Surfer15 software, O

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Zaky, Dicky Ahmad, and Alissa Bilqis. "APPLICATION OF GENERALIZED DERIVATIVE OPERATOR ON BOUGUER ANOMALY FOR DETECTING GEOLOGICAL STRUCTURES." Jurnal Geofisika Eksplorasi 8, no. 2 (2022): 113–26. http://dx.doi.org/10.23960/jge.v8i2.204.

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Generalized Derivative Operator (GDO) is one of the first-order derivative filters that could control the derivative’s direction by modifying the value of azimuth () and dip () parameters. This study aims to examine those GDO parameters on synthetic Bouguer anomaly and apply them to field data of the Silver Peak geothermal field to identify the geological structures. We use Python programs to conduct the GDO and other derivative operators such as horizontal gradient (HG), analytic signal amplitude (AS), as well Second Vertical Derivative (SVD) for comparison. The derivative operators are perfo

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Pánisová, Jaroslava, and Roman Pašteka. "The use of microgravity technique in archaeology: A case study from the St. Nicolas Church in Pukanec, Slovakia." Contributions to Geophysics and Geodesy 39, no. 3 (2009): 237–54. http://dx.doi.org/10.2478/v10126-009-0009-1.

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The use of microgravity technique in archaeology: A case study from the St. Nicolas Church in Pukanec, SlovakiaThe detection of subsurface cavities, such as crypts, cellars and tunnels, in churches and castles belongs to successful applications of the employment of surface gravity measurement techniques in archaeo-prospecting. The old historic building exploration requires using of non-invasive methods, and hence the microgravity technique is a proper candidate for this task. On a case study from the Roman-Catholic Church of St. Nicolas in the town Pukanec the results of using microgravity for

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Adhiatha Herlambang, Kevin, Iskandarsyah, and Ayunda Aulia Valencia. "Utilizing the Gravity Method for Initial Estimation of CO₂ Storage Capacity in Supat Field, South Sumatera." IOP Conference Series: Earth and Environmental Science 1437, no. 1 (2024): 012018. https://doi.org/10.1088/1755-1315/1437/1/012018.

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Abstract Carbon Capture and Storage (CCS) technology is one of the solution to global warming. CCS is a method that involves separating CO2 from industrial and energy sources, transferring it to storage, and isolating it from the atmosphere for long periods of time. The Supat Field, South Sumatra is one of the mature oil and gas fields that could be used for CO2 storage in Indonesia. The gravity method is used to determine how much volume of CO2 can be stored in the Talang Akar Formation, Supat Field. By utilizing residual anomaly gravity data and the combination of Occam and Singular Value De

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يوسف, عبد العظيم محمد ساسي. "دراسة التباين في قيمة الجاذبية الناتج عن التداخلات البازلتية في منطقة مسلاته وما حولها باستخدام خرائط شواذ بوجير الجاذبية". International Science and Technology Journal 34, № 2 (2024): 1–14. http://dx.doi.org/10.62341/abms3431.

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In this paper an attempt to locate the sites of basalt intrusion, an analysis and study of Bouguer map was carried out for the area, which lies between two circles of width 32,250 - 32,360 north, and between longitudes 14.30 - 13.49 east. The paper included processing the gravity data and separating the gravity anomaly from each other using the derivatives method Interpretation of gravity data was performed using the modeling program (2D, 3D), which aims to create a geological profile that shows the third dimension of the distribution of different rocks, and rather olivine and phenolitic basal

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Saidou, Bouba, Apollinaire Bouba, Valentin Oyoa, Kasi Njeudjang, Joseph Kamguia, and Alidou Mohamadou. "Crustal Structures Inferred from Combined Terrestrial and Earth Gravity Data beneath the Babouri-Figuil and Mayo Oulo-Lere Basins, North Cameroon and South Chad." Earth and Planetary Science 3, no. 1 (2024): 21–34. http://dx.doi.org/10.36956/eps.v3i1.928.

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In this work, the study of the crustal structure of the Babouri-Figuil and Mayo Oulo-Lere sedimentary basins was carried out through the interpretation of gravity data. These data were obtained by combining the terrestrial gravity data obtained from the Earth Gravitational Model 2008. The analysis of the terrestrial Bouguer anomaly maps reveals both negative and positive anomalies. Negative anomalies, i.e., low-density signatures, are interpreted as specific rock types on the basis of the geological knowledge of the region while the positive anomalies are attributed to basaltic rocks underlyin

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STANCIU, Irina, and Dumitru IOANE. "The Moesian Platform: structural and tectonic features interpreted on regional gravity and magnetic data." Geo-Eco-Marina 27 (2021) (December 31, 2021): 183–95. https://doi.org/10.5281/zenodo.5795188.

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Compilation of gravity maps from Romania and Bulgaria provided geophysical data with very good regional coverage, making possible enhanced data processing and cross-border geological interpretation of gravity data on the Moesian Platform. By merging the available gravity data into a unique dataset, a Bouguer gravity anomaly map of the Moesian Platform in Romania and Bulgaria was produced. When applying filtering techniques, the residual gravity anomaly map of the Moesian Platform provided valuable information on the Intramoesian Fault segments in both Romania and Bulgaria. Large and deep

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MUÑOZ-MARTÍN, A., M. CATALÁN, J. MARTÍN-DÁVILA, and A. CARBÓ. "Upper crustal structure of Deception Island area (Bransfield Strait, Antarctica) from gravity and magnetic modelling." Antarctic Science 17, no. 2 (2005): 213–24. http://dx.doi.org/10.1017/s0954102005002622.

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Deception Island is a young, active volcano located in the south-western part of Bransfield Strait, between the Antarctic Peninsula and the South Shetland archipelago. New gravity and magnetic data, from a marine geophysical cruise (DECVOL-99), were analysed. Forty-eight survey lines were processed and mapped around Deception Island to obtain Bouguer and magnetic anomaly maps. These maps show well- defined groups of gravity and magnetic anomalies, as well as their gradients. To constrain the upper crustal structure, we have performed 2+1/2D forward modelling on three profiles perpendicular to

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Sharma, K. K., V. K. Rao, and K. Mallick. "Finite Element Gravity Regional and Residual Anomalies and Structural Fabrics of Northwest Ganga Basin." Journal Geological Society of India 54, no. 2 (1999): 169–78. http://dx.doi.org/10.17491/jgsi/1999/540207.

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Abstract The separation of the regional gravity anomaly by any of the existing techniques has one common drawback, i.e. the Bouguer gravity values over the anomalous zone enter into the computations. In order to overcome this, a new scheme, based on the finite element approximation, is suggested to compute the regional anomaly. The uniqueness of this approach is that except a few discrete gravity values coinciding with the nodes of the element superimposing the map space, often very large, no other gravity data are invoked to compute the regional anomaly. As a case study, regional - residual a

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Setiahadiwibowo, Ajimas Pascaning, Sismanto, Anik Hilyah, Lia Andri Anggraeni, Moh Singgih Purwanto, and Ceni Febi Kurnia Sari. "Comparison of Upward Continuation and Moving Average Filters for Satellite Gravity Data in Probolinggo Fault Case Study." IOP Conference Series: Earth and Environmental Science 1486, no. 1 (2025): 012021. https://doi.org/10.1088/1755-1315/1486/1/012021.

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Abstract In gravity data processing, selecting the correct filter results in accurate interpretation. In this study, upward continuation and moving average filters were applied to delineate the existence of the Probolinggo Fault. The data used is satellite gravity data from the Global Gravity Model Plus (GGMplus) 2013, after which corrections were made to the data to obtain a complete Bouguer anomaly map. The next step is filtering to obtain residual anomalies. In the moving average filter, a window width of 47 was used, and in the upward continuation filter, the best anomaly was obtained at a

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Zulkaromi, Muhammad, Imam Setiadi, Suharno Suharno, Bagus Sapto Mulyatno, Nandi Haerudin, and Istifani Ferucha. "IDENTIFICATION OF HORST AND GRABEN STRUCTURAL PATTERNS USING GRAVITY AND SECOND VERTICAL DERIVATIVE (SVD) METHODS IN THE LUBUKSIKAPING AREA OF WEST SUMATERA." Indonesian Physical Review 4, no. 3 (2021): 153–65. http://dx.doi.org/10.29303/ipr.v4i3.118.

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The Lubuksikaping area is located between the main fault branching of the Sumateran Fault so it can be seen that there are many quite complex structures. This research was conducted to determine the structure pattern of the high (horst) and low (graben) that formed in the sub-surface of the Lubuksikaping area, West Sumatera. This research uses gravity data which will then be carried out by spectral analysis, upward continuation, separation of regional and residual anomalies, and Second Vertical Derivative (SVD) analysis. Furthermore, 2D forward modeling is carried out to determine the correlat

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