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Journal articles on the topic 'Lineaments and intrusive'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Sadiq, Hamza Maina, and Alhaji Adam Zarma. "Depth to Magnetic Sources Using Spectral Analysis of High Resolution Aeromagnetic Data Over Machina and Environs, Northeastern Nigeria." Journal of Geography and Geology 11, no. 1 (2019): 70. http://dx.doi.org/10.5539/jgg.v11n1p70.

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Analysis of high resolution aeromagnetic data over Machina and its environment shows areas of low total magnetic intensity contour values are hosts to thicker overburden sediments and near surface intrusive rock bodies reside over high total magnetic intensity contour regions. Positive and negative residual anomaly values depict the presence of basic and acid rock units; however, the acid rocks dominate over the basic components. Major linear features of the residual anomaly are oriented along the NE – SW direction. Some linear features however, cross cut the major lineaments along the NW – SE

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Sirisokha, Seang, Lucas Donny Setijadji, and I. Wayan Warmada. "MINERAL POTENTIAL MAPPING USING GEOGRAPHIC INFORMATION SYSTEMS (GIS) FOR GOLD MINERALIZATION IN WEST JAVA, INDONESIA." Journal of Applied Geology 7, no. 1 (2015): 61. http://dx.doi.org/10.22146/jag.26980.

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Western Java is a part of the Sunda Banda magmatic belt. This belt is well known to be host for several gold deposits in Indonesia, the distribution of 107 Au occurrences in this area was examined in terms of spatial association with various geological phenomena. The goal of this project is to use GIS to conduct weights of evidence (WofE) model for gold mineralization in West Java, Indonesia. A Geographic Information System (GIS) is a computer system for capturing, storing, querying, analyzing, and displaying geospatial data and weight of evidence method is one of the most important datadriven

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Aliyu, Ahmed Sidi, Nuhu Musa Waziri, Hadiza Liman Mohammad, Mohammed Abubakar Mohammed, and Apeh Aromeh Gideon. "Reconnaissance geochemical and geophysical exploration for gold at Iri gold field, north central Nigeria." Scientia Bruneiana 18, no. 2 (2020): 19–31. http://dx.doi.org/10.46537/scibru.v18i2.93.

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Reconnaissance geochemical and geophysical exploration for gold was carried out at IRI Gold field. Geological mapping was conducted and rocks, soils and sediments samples were collected. The outcome revealed rocks of the basement complex of Nigeria made up of mainly, Migmatite Gneiss, Older Granite and the Schist. The major lithology in the area is silicified sheared rocks and large quartz vein. Isolated occurrence of undifferentiated schist was found as parent material on which quartzite intruded possibly during a major geological activity. Shattering of the rocks left boulders and rubbles of

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Pereira, Alice Marques, César Augusto Moreira, José Ricardo Melges Bortolin, Syngra Machado Lopes, and Antonio José Ranalli Nardy. "Magnetometric exploration in intrusive basic with evidence of gold in northern region of the Camaquã Sedimentary Basin (RS)." Rem: Revista Escola de Minas 68, no. 2 (2015): 163–69. http://dx.doi.org/10.1590/0370-44672015680074.

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AbstractThis study involved magnetometric exploration in the region of São Sepé (RS), southern Brazil, to evaluate the potential for gold mineralization in a gabbro using evidence previously obtained from the geochemical exploration of stream sediments. The gabbro named Santa Catarina is intruded in the Metamorphic Complex Vacacaí, a metassedimentary sequence where several gold deposits were recognized. In this study, nine lines of land magnetometry were performed with 1.200m in length each, a total of 10.800m and 720 reading stations. The results suggest the presence of filonian mineralizatio

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Kasidi, S., and L.G Ndatuwong. "SPECTRAL ANALYSIS OF AEROMAGNETIC DATA OVER LONGUDA PLATEAU AND ENVIRONS, NORTH-EASTERN NIGERIA." Continental J. Earth Sciences 3 (July 7, 2008): 28–32. https://doi.org/10.5281/zenodo.824298.

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The investigation involve the analysis of lineraments and spectral analysis of total intensity magnetic field data over the Longuda Plateau and environs, Guyuk area. The total magnetic field map exhibit direction of NE-SW and E-W lineraments. The NE-SW lineraments coincide with Longuda basalts while the E-W coincide with the Yola arm of Benue Trough. Result from spectral analysis of the aeromagnetic data indicate two depth source model. The depth to deeper magnetic sources ranges from 1900m to 2620m and could be identified with the basement. The shallow magnetic source ranges from 512m to 670

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Hamad, Nali Jawad. "Geomorphological Assessment of the Viability of the Landforms in the Khalekan Valley Basin for Human Uses." Journal of University of Raparin 8, no. 2 (2021): 128–48. http://dx.doi.org/10.26750/vol(8).no(2).paper6.

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The study aims to evaluating the landform in the khalakan basin and its to preparing appropriate model for the capacity of the lands by using remote sensing (RS) technology and geographic information system (GIS) by depending on function of (Wighted-Overlay) which can be considered as one of the significant function of GIS. And in order to achieve the aim of the study, eight layers have been extracted for preparing appropriate ground model. according to the importance of each layer which is used to determine the ability and they are: (geological formations, slope, splash erosion, soil, p

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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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Akingboye, Adedibu, and Abimbola Ogunyele. "Basement Classification through Enhanced Magnetic Data Reductions in parts of Ekiti State, Southwestern Nigeria." International Journal of Advanced Geosciences 6, no. 1 (2017): 1. http://dx.doi.org/10.14419/ijag.v6i1.8573.

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Enhanced magnetic data reductions via the use of various forms of filters were employed for basement classification in parts of Ekiti State. The data reductions and enhancement involve: reduction to equator (RTE), regional and residual, automatic gain control (AGC), downward continuation, upward continuations (1, 2, and 3 km), analytic signal (AS) and horizontal gradient (HG) to map and delineate basement rocks and structures, while surface relief and spectral plot were used to determine depth to top of magnetic sources. The images revealed that the study area is characterized by different lit

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Aali, Ali Akbar, Adel Shirazy, Aref Shirazi, et al. "Fusion of Remote Sensing, Magnetometric, and Geological Data to Identify Polymetallic Mineral Potential Zones in Chakchak Region, Yazd, Iran." Remote Sensing 14, no. 23 (2022): 6018. http://dx.doi.org/10.3390/rs14236018.

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Exploration geologists are urged to develop new, robust, and low-cost approaches to identify high potential zones related to underground/unexplored mineral deposits because of increased depletion of ore deposits and high consumption of basic metal production industries. Fusing remote sensing, geophysical and geological data has great capability to provide a complete range of prerequisite data to accomplish this purpose. This investigation fuses remote sensing data, such as Sentinel-2 and Landsat 7, aerial magnetic geophysical data, and geological data for identifying polymetallic mineralizatio

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Babagana, Mustapha, Abubakar Adamu, El-Yakub A. Idris, et al. "Reassessment of Geophysical Investigation of Zinc(Z), Cupper (Cu) and Lead (Pb) Potential Mineralization Deposits using Aeromagnetic Data in Wase Middle Benue Trough, Nigeria." International Journal for Research in Applied Science and Engineering Technology 11, no. 4 (2023): 2896–905. http://dx.doi.org/10.22214/ijraset.2023.49327.

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Abstract: This effort aims to delineate structures responsible for exploring mineral resources in the Wase middle Benue trough area of Northcentral, Nigeria by evaluating the aeromagnetic data over that region. Oasis Montaj version 6.4 was used to qualitatively and quantitatively evaluate the aeromagnetic data. Techniques for Source Parameter Imaging (SPI) interpretation, including First Vertical Derivative, Analytical Signal, Upward Continuation, and Tilt Derivative, were used in the study. Analytic signal and tilt derivative maps showed different patterns of magnetic signatures independent o

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Subrahmanyam, A. S., S. Lakshminarayana, D. V. Chandrasekhar, K. S. R. Murthy, and T. C. S. Rao. "Offshore Structural Trends from Magnetic data over Cauvery Basin, East Coast of India." Journal Geological Society of India 46, no. 3 (1995): 269–73. http://dx.doi.org/10.17491/jgsi/1995/460308.

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Abstract Detailed analysis of magnetic and bathymetric data over shelf and slope regions of Cauvery basin, east coast of India. between Mahabalipuram and Vedaranyam demarcated three major offshore lineaments trending N-S, NE-SW and E-W. The N-S lineation has been interpreted as due to dyke intrusions. NE-SW lineament reflects the offshore extension of a major basement depression, viz., the Pondicherry depression. E-W lineation, south of Porto Novo reveals a basement high suggesting the seaward extension of Kumbakonam ridge within the Pondicherry depression. The present analysis gives mosaic of

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von Gosen, W. "Fabric developments and the evolution of the Periadriatic Lineament in southeast Austria." Geological Magazine 126, no. 1 (1989): 55–71. http://dx.doi.org/10.1017/s0016756800006142.

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AbstractThe Periadriatic Lineament Zone which forms the boundary between the Eastern and Southern Alps in the Karawanken region of Austria has a complex history spanning the Variscan and Alpine orogenies. Variscan regional metamorphism and polyphase deformation followed by Late to Post Variscan intrusive activity with accompanying contact metamorphism affects a belt of structurally complex rocks referred to as the Eisenkappel Zone to the north of the lineament. Weak Early Alpine deformation in the Southern Alpine rocks can also be recognized in the Eisenkappel Zone. The Young Alpine intrusion

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Ulrich Igor, Owono Amougou Olivier, Ndougsa Mbarga Theophile, Meying Arsène, et al. "Evidence of Major Structural Features over the Pan-African Domain in the Bertoua-Mbangue Area (East Cameroon) from a Multiscale Approach of Modeling and Interpretation of Aeromagnetic Data." International Journal of Geophysics 2019 (March 3, 2019): 1–12. http://dx.doi.org/10.1155/2019/9148678.

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The aim of this study is to investigate crustal structures from East Cameroon, using aeromagnetic data. The modeling of aeromagnetic data is conducted using the Oasis Montaj 8.0 software. The total magnetic intensity map reduced to the equator (RTE-TMI) shows important anomalies features, namely, the Northern East magnetic anomalies of high amplitude, the Southwest where very low values of the magnetic intensity were observed, and a corridor with negative values relatively high, separating the anomalies. The horizontal gradient map shows on the one hand brittle and folded structures carried ou

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Mishra, D. C., S. B. Gupta, and M. R. K. Prabhakar Rao. "Airborne Magnetic Lineament, Groundwater Potentiality and Basement Structures in S-E Part of Vindhyan Basin." Journal Geological Society of India 52, no. 2 (1998): 195–202. http://dx.doi.org/10.17491/jgsi/1998/520207.

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Abstract Airborne total intensity magnetic survey flown at a height of approximately 152 m in central India has delineated several linear magnetic anomalies of 200-400 nT aligned together to form a large magnetic lineament approximately 1 km wide and 100 km long. The nature of magnetic anomalies suggest the lineament to be a fracture zone with basic intrusives at places. Magnetic and resistivity surveys on ground provide large magnetic (600-800 nT) and low resistivity anomalies along this lineament suggesting a fracture zone with basic intrusive rocks at places and very good groundwater potent

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15

Chauvaud, David, and Jean Delfaud. "Use of morphostructural analysis to show halokinesis during Mio-Plio-Quaternary in the South-West part of Aquitain Basin." Bulletin de la Société Géologique de France 173, no. 4 (2002): 317–35. http://dx.doi.org/10.2113/173.4.317.

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Abstract In the South Aquitain sector, salt bodies of varying sizes present two geographical gradients. The first gradient, south to north, associated with the proximity of the Pyrenees shows a decreasing deformation of the structures towards the north. The second gradient explains their increasing depth of burial from the west (extrusive structures) to the east (intrusive structures). This organization has been studied from the western sector (Tercis-Bénesse and Bastennes-Louer) to the eastern sector (Viella-Labarthète and Nogaro-Lussagnet). Other more modest structures, revealed by hydrogr

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Handyarso, Accep. "Interpretation of 3 D Magnetic Inversion Results in the Majenang Area, Indonesia." INDONESIAN JOURNAL OF APPLIED PHYSICS 15, no. 1 (2025): 1. https://doi.org/10.13057/ijap.v15i1.61501.

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<p>The Total Magnetic Intensity (TMI) data requires conversion using Reduction to Pole (RTP) or Reduction to Equator (RTE) filters prior to the interpretation process. However, the low latitude location causes stability issue in the RTP and is replaced by the RTE computing processes. Noteworthy, the RTE results have inverted polarity. An inverse modeling scheme based on direct use of TMI data using equivalent‑source provides an alternative solution to address this issue. In this research, synthetic modeling of a strike‑slip fault geometry is conducted to assist the interpretation process

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Ray, Sumit Kumar. "The Albitite Line of Northern Rajasthan-A Fossil Intracontinental Rift Zone." Journal Geological Society of India 36, no. 4 (1990): 413–23. http://dx.doi.org/10.17491/jgsi/1990/360406.

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Abstract A 170km long NNE-SSW lineament, extending from the Khetri Copper Belt to the Dudu-Kishangarh sector, is characterised by intrusives of albitite, composed predominantly of aventurine albite. Textural evidences suggest that the albitites, magnetite-albitites and pyroxenites, occurring along the Albitite Line, represent different cumulate fractions derived from the same source magma. The fractures, which tapped the magma chamber are related to an intracontinental rift system.

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Breemen, Otto van, and Michael D. Higgins. "U–Pb zircon age of the southwest lobe of the Havre-Saint-Pierre Anorthosite Complex, Grenville Province, Canada." Canadian Journal of Earth Sciences 30, no. 7 (1993): 1453–57. http://dx.doi.org/10.1139/e93-125.

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U–Pb zircon dating of the southwest lobe of the Havre-Saint-Pierre anorthosite intrusion indicates that it is 1062 ± 4 Ma old. Parallelism of magmatic and solid-state foliations with the adjacent Abbé–Huard lineament suggest that anorthosite parental magmas rose up this shear zone, which was active at that time. The age of igneous crystallization is much younger than that of a spatially associated mangerite intrusion, but accords with age data from other granitoid intrusions elsewhere in the Grenville Province. Evidence points to a widespread 1.09–1.05 Ga magmatic event that included massif an

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Susetyono, Mardhiawan Tri, and Lucas Donny Setijadji. "Study of Active and Fossil Hydrothermal Systems in Ijen Caldera Complex and Merubetiri Mountains, East Java." Indonesian Journal of Economic Geology 1, no. 1 (2021): 23–38. http://dx.doi.org/10.51835/ijeg.2021.1.1.340.

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Ore deposits formed at subduction zone are associated with magmatism activities that are represented by volcanic activities at the surface. In the Eastern Sunda Arc, one of active volcanic activity can be found in Ijen Caldera Complex. The complex has hydrothermal volcanic manifestations with a very acidic pH. Meanwhile in the south of Ijen Complex, there is ancient volcanic complex called Merubetiri Mountains that is proven to be well-mineralized at Tumpangpitu as high sulfidation and porphyry-style mineralizations. An understanding of hydrothermal activity and volcanic landforms in active vo

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Aretouyap, Zakari, Lawal Billa, Matthew Jones, and Goetz Richter. "Geospatial and statistical interpretation of lineaments: salinity intrusion in the Kribi-Campo coastland of Cameroon." Advances in Space Research 66, no. 4 (2020): 844–53. http://dx.doi.org/10.1016/j.asr.2020.05.002.

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Ahmad, Mansoor, Abdul Qayoom Paul, and A. Saikia. "Pillow Morphology of Bathani Volcano-sedimentary Sequence of Eastern Indian Shield: Inferences on the Geotectonic and Geo-Environments." Journal of the Geological Society of India 100, no. 2 (2024): 218–32. http://dx.doi.org/10.17491/jgsi/2024/173821.

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Abstract The Palaeo-proterozoic Bathani volcano-sedimentary sequence (BVSs) at the northeastern fringe of the Central Indian Tectonic Zone (CITZ), comprises three distinct litho-domains: (i) intrusive granitoid, having xenoliths of basalt, pyroxenite-gabbro-anorthosite suits (Northern Domain), (ii) low-grade volcano-sedimentary sequence along with concordant mafic-ultramafic intrusion (Central Domain) and (iii) folded clastic metasedimentary rocks (Southern Domain). The granitoid is intruded into the Central Domain, where pillow basalt with primary structure is well exposed. The volcanological

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Da Silva, Daniel Adelino, Mauro Cesar Geraldes, Thais Vargas, Fred Jourdan, and Camila Cardoso Nogueira. "40Ar/39Ar age, lithogeochemistry and petrographic studies of the Cretaceous Alkaline Marapicu Intrusion, Rio de Janeiro, Brazil." Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais 10, no. 3 (2021): 399–422. http://dx.doi.org/10.46357/bcnaturais.v10i3.474.

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The Marapicu Alkaline Massif is an intrusion into the Marapicu-Gericinó-Mendanha Igneous Complex that is part of the Cretaceous Poços de Caldas-Cabo Frio magmatic lineament located in the Southeastern region of Brazil. Nepheline syenites and phonolites are the most abundant rocks in the massif that also include syenites forming an alkaline series SiO2- undersatured. Chemically this series is predominantly metaluminous and to a lesser extent peralkaline. This series presents both potassic and sodic suites being the first one in greater content. The data show that both basic and intermediary roc

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Mocitaiba, Leonardo Silva Ribeiro, David Lopes de Castro, and Diógenes Custódio de Oliveira. "Cartografia geofísica regional do magmatismo mesozoico na Bacia do Parnaíba." Geologia USP. Série Científica 17, no. 2 (2017): 169. http://dx.doi.org/10.11606/issn.2316-9095.v17-455.

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Durante a desagregação mesozoica do megacontinente Pangea e abertura do Oceano Atlântico, rochas ígneas intrusivas e extrusivas acomodaram-se na Bacia do Parnaíba no Eojurássico e Eocretáceo, resultando nas sucessões ígneas Mosquito e Sardinha, respectivamente. O principal objetivo desta pesquisa é a cartografia geofísica regional desses corpos magmáticos com base em técnicas de realce de anomalias magnéticas e mapeamento semiautomático (SOM). Um vasto conjunto de dados magnéticos aerolevantados foi processado e interpretado com o objetivo de cartografar a distribuição da atividade ígnea na Ba

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Shirazi, Aref, Ardeshir Hezarkhani, and Amin Beiranvand Pour. "Fusion of Lineament Factor (LF) Map Analysis and Multifractal Technique for Massive Sulfide Copper Exploration: The Sahlabad Area, East Iran." Minerals 12, no. 5 (2022): 549. http://dx.doi.org/10.3390/min12050549.

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Fault systems are characteristically one of the main factors controlling massive sulfide mineralization. The main objective of this study was to investigate the relationship between fault systems and host lithology with massive sulfide copper mineralization in the Sahlabad area, South Khorasan province, east of Iran. Subsequently, the rose diagram analysis, Fry analysis, lineament factor (LF) map analysis and multifractal technique were implemented for geological and geophysical data. Airborne geophysical analysis (aeromagnetometric data) was executed to determine the presence of intrusive and

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Anthony, Emmanuel Agada, Othniel Kamfani Likkason, Abubakar Sadiq Maigari, Sani Ali, and Adamu Abubakar. "Subsurface Structural Characterization as Deduced from High-Resolution Aeromagnetic Data over The Confluence Zones in Central, Nigeria." Indonesian Journal of Earth Sciences 3, no. 1 (2023): A600. http://dx.doi.org/10.52562/injoes.2023.600.

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This study aimed to delineate the intrusion body that controls the structural setting and formation around the river Niger-Benue confluence zone with particular attention to its solid mineral potentials, this is achieved in mapping subsurface structural features through the analysis of recent high-resolution aeromagnetic (HRAM) data-sets with the purpose of examining their effects on geological structures that characterize the confluence zones from the study area. To obtain the necessary reduction in geomagnetic variation, measurements of regional gradients and time variation were used. After

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Widiatmoko, F. R., A. S. Sari, J. A. N. Ramadhanty, and R. H. K. Putri. "Study of Hydrothermal Alteration and Mineralization in the Lahbako Field, Jember Regency, East Java Province." Journal of Physics: Conference Series 2117, no. 1 (2021): 012004. http://dx.doi.org/10.1088/1742-6596/2117/1/012004.

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Abstract Administratively, the research location is in Lahbako Field, Jember Regency, East Java Province. This study discusses the geological characteristics, hydrothermal alteration, and mineralization in the study area. The method used is field data collection by mapping and laboratory analysis in the form of petrographic analysis and mineragraphic analysis. The research area is divided into three geomorphology units, namely a unit with steep hills, a unit with undulating hills, and a unit with sloping plains. The stratigraphy of the study area is divided into five-rock units, while the orde

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Jafar, Syed A. "High-resolution calcareous nannofossil biostratigraphy and facies of Nimar Sandstone Formation (Bagh Group), central India and its bearing on Oceanic Anoxic Event 2." Journal of the Palaeontological Society of India 68, no. 1 (2023): 58–67. http://dx.doi.org/10.1177/05529360231200513.

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It is proposed to consider Narmada Valley Late Cretaceous sequences in three sectors with proper selection of stratotype in each sector: Eastern Sector: comprising of Lameta group of rocks with type area in Jabalpur area, essentially laid down in lacustrine-paedogenic milieu and containing a variety of fossils including dinosaur remains of Late Maastrichtian age. No evidence of sea incursion is available in the Eastern Sector either via the Narmada lineament or the K-G Basin. Central Sector: comprising of the Bagh Group in ascending order of: Nimar Sandstone Formation–Nodular Limestone Formati

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Suneetha, N., and Gautam Gupta. "Evaluation of groundwater potential and saline water intrusion using secondary geophysical parameters: A case study from western Maharashtra, India." E3S Web of Conferences 54 (2018): 00033. http://dx.doi.org/10.1051/e3sconf/20185400033.

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Aquifers along the coastal regions around the world are facing severe level of saline water intrusion problems. Rapid development and the associated increase in groundwater withdrawals intensify the problem. Extensive mapping of migration and extent of salt water plumes is difficult and costly. Several surficial geophysical methods have been developed for measuring salinity levels in coastal aquifers. The present study is an attempt to delineate the saline water and fresh water intrusion in parts of west coast of Maharashtra, India. A total of 86 vertical electrical soundings were carried out

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Ivana, Jessica, L. Supriatna, and Tri Rani Puji Astuti. "Identification of Potential Groundwater Recharge Zone Using Remote Sensing and GIS in Upstream Cibeet Sub-watershed, Bogor, West Java." IOP Conference Series: Earth and Environmental Science 1111, no. 1 (2022): 012025. http://dx.doi.org/10.1088/1755-1315/1111/1/012025.

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Abstract The Upstream Cibeet sub-watershed is part of the Citarum watershed and Cibeet sub-watershed with an area of 69.35 km2. Hydrologically, the upstream part of the watershed usually functions as a recharge area, and its development should be geared towards land conservation and erosion mitigation. Parameters of rainfall, soil type and texture, geology, lineament density, drainage density, geomorphology, and land cover are used in predicting the most potential catchment area. Thematic maps were made for each parameter. Weighting is carried out using the Analytical Hierarchy Process (AHP) w

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McCrank, G. F. D., D. C. Kamineni, R. B. Ejeckam, and R. Sikorsky. "Geology of the East Bull Lake gabbro–anorthosite pluton, Algoma District, Ontario." Canadian Journal of Earth Sciences 26, no. 2 (1989): 357–75. http://dx.doi.org/10.1139/e89-034.

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The East Bull Lake Pluton, a layered gabbro–anorthosite intrusion 90 km west of Sudbury, Ontario, is in an inward-dipping lopolith and is 780 m thick in the centre and elliptical in plan view (13.5 km × 3.5 km). It intruded Archean metavolcanic and metaplutonic rocks of the Superior Province during the Early Proterozoic (2480 Ma).The intrusion consistes of a basal anorthositic unit, succeeded by rhythmic-layered gabbro, troctolite, layered gabbro, and massive and dendritic gabbro units. It is offset by the west-northwest-striking, subvertical Folson Lake fault. South of this fault, only anorth

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Ghosh, G. K., and C. L. Singh. "Intrusion and upliftment of Mahakoshal rocks between Vindhyan and Gondwana in Narmada Son Lineament, Central India." Journal of the Geological Society of India 81, no. 4 (2013): 556–64. http://dx.doi.org/10.1007/s12594-013-0071-1.

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HUTTON, D. H. W., and G. I. ALSOP. "The Caledonian strike-swing and associated lineaments in NW Ireland and adjacent areas: sedimentation, deformation and igneous intrusion patterns." Journal of the Geological Society 153, no. 3 (1996): 345–60. http://dx.doi.org/10.1144/gsjgs.153.3.0345.

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Mahecha, Albano, Nureddin Saadi, Essam Aboud, Akira Imai, and Kotaro Yonezu. "Evaluation of geological structures and geothermal resources in the North Tanzania Volcanic area using remote sensing and gravity data analysis." 59, no. 59 (December 1, 2023): 28–43. http://dx.doi.org/10.26565/2410-7360-2023-59-03.

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Problems Statement and Purpose. Northern Tanzania Volcanic terrain has been a subject of evaluation for geothermal potential in the last four decades. The region is characterized by Neogene to Recent volcanic and tectonic activities. This preliminary study based on remote sensing, water chemistry, gravity data, geological structures and volcanic centers distribution reports the geothermal manifestations identified and discusses the implications on geothermal fluid pathways. Oxygen-hydrogen isotope data from water samples indicate that there were involved in the hydrothermal system. Tectono-Vol

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Akpan, O. P., A. A. Okiwelu, and E. E. Okwueze. "Determination of sediments thickness in part of Lower Benue Trough, Nigeria, from the residualization of aeromagnetic data: Implication for diversification of the Nigerian economy." Applied Journal of Physical Science 2, no. 3 (2020): 80–88. http://dx.doi.org/10.31248/ajps2020.031.

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Aeromagnetic data were used in the study to determine the sediment thickness in the Lower Benue Trough. To achieve the objectives of the study, geophysical techniques were employed to analyze four aeromagnetic maps on a scale of 1:100,000, covering parts of the Lower Benue Trough. These include map merging, polynomial fitting, directional derivatives and forward modeling. Nine (9) profiles were modeled to determine sediment thickness, presence of possible intrusives and the subtle structural features and their trend within the study area. Results from this study revealed the existence of many

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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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Neves, Benjamim Bley De Brito, and Mario Da Costa Campos Neto. "A faixa de dobramentos do Rio Salgado, norte-noroeste da Zona Transversal-Província Borborema (PB-CE)." Geologia USP. Série Científica 16, no. 3 (2016): 3. http://dx.doi.org/10.11606/issn.2316-9095.v16i3p3-17.

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O sistema de Dobramentos Piancó-Alto Brígida (SPAB) foi definido como um branching system of orogens neoproterozoico na parte centro-ocidental da Zona Transversal-Província Borborema. A discriminação de Faixa de Dobramentos do Rio Salgado (FDRS) está sendo proposta para o ramo mais setentrional deste sistema. Esta faixa (FDRS) está cortada ao norte pelo Lineamento Patos (aqui considerado como um boundary transform continental) e margeada por uma série de basement inliers paleoproterozoicos ao sul (Riacho São Pedro, Icaiçara, S. José do Caiano, Coremas etc.), estando em parte encoberta por sedi

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Arisbaya, Ilham, Edy Wijanarko, Warsa, et al. "Magnetotellurics (MT) and Gravity Study of a Possible Active Fault in Southern Garut, West Java, Indonesia." International Journal of Geophysics 2023 (March 31, 2023): 1–20. http://dx.doi.org/10.1155/2023/4482074.

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In recent years, dozen low-intensity earthquakes occurred in southern Garut, West Java Indonesia; two of them were reported destructive. However, those shallow earthquake clusters are hardly associated with well-known active faults in the area. Hence, we conducted 3D gravity combined with 2D magnetotellurics (MT) inversions to study the subsurface. Gravity and MT modeling confirm a basin with around 5 km depth consisting of two subbasins separated by a NE-SW trending local-high ridge. The local high coincides with the magmatic intrusion in geothermal fields and aligns with a series of volcanic

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Mjelde, R., H. Shimamura, T. Kanazawa, S. Kodaira, T. Raum, and H. Shiobara. "Crustal lineaments, distribution of lower crustal intrusives and structural evolution of the Vøring Margin, NE Atlantic; new insight from wide-angle seismic models." Tectonophysics 369, no. 3-4 (2003): 199–218. http://dx.doi.org/10.1016/s0040-1951(03)00199-9.

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Garcia, Helbert, and Giovanny Jimenez. "Structural analysis of the Zipaquira Anticline (Eastern Cordillera, Colombia)." Boletín de Ciencias de la Tierra, no. 39 (January 1, 2016): 21–32. http://dx.doi.org/10.15446/rbct.n39.50333.

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We report geological mapping, recollection of kinematic data, fracture data and transverse sections along the Zipaquira Anticline (ZA) used to recognize the deformation mechanisms involved in the kinematic evolution of the ZA. The Zipaquira Anticline (ZA) is an assimetrical fold with variation in the strike of fold axis and affected by some transverse faults (Transverse Zones) along its extension. The main fracture set in the ZA was formed in a pre-folding stage (J1), controlling the formation and propagation of sin-folding fractures (J2). Another fracture set (J3) was only recognized near the

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Santos, Francisco Leandro de Almeida, Flávio Rodrigues do Nascimento, Roberto Jarllys Reis Lima, and Henrique Sampaio de Castro. "MORPHOSTRUCTURAL EVOLUTION AND GEOMORPHOLOGICAL MAPPING IN CRYSTALLINE MASSIF IN NORTHEASTERN BRAZIL." Caderno de Geografia 33, no. 75 (2023): 1428. http://dx.doi.org/10.5752/p.2318-2962.2023v33n75p1428.

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This work addresses the morphostructural evolution of the Crystalline Massif in northeastern Brazil. Highlights as a test area the northwest of the State of Ceará, evaluating the Massif of Meruoca, as a result of the intrusion of post-tectonic granitoid from the orogenic collapse of Brazilians in the Middle Domain area Coreaú/Província Borborema. In addition, the reactivations of the Café-Ipueiras Fault and the Transbrazilian Lineament promoted morphotectonic events during the Cretaceous and Cenozoic, conditioning the elevation or exhumation of the relief. The operational procedures were divid

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Caldwell, W. G. E., and G. M. Young. "Early Carboniferous minor intrusions of the Clyde Plateau: new data from the Cumbrae islands." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 102, no. 4 (2011): 227–51. http://dx.doi.org/10.1017/s1755691011011030.

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ABSTRACT:The Cumbrae islands are unmatched for study of minor intrusions associated with the Early Carboniferous Clyde Lava Plateau. The transitional to subalkaline rock suite is present in a linear swarm of c. 250 ENE to NE dykes – 82 ‘basaltic’ (basalt to hawaiite) and 18 ‘trachytic’ (benmoreite to felsite), with a crustal dilation of 13·3. This swarm provides a unique window on the shallow crustal feeder system of the lava plateau. A ‘trachytic’ secondary swarm, focused on the plateau volcano of Misty Law in the Renfrewshire Hills, is analogous to a similar swarm in the Campsie Fells linked

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Patro, Prasanta K., and S. V. S. Sarma. "Evidence for an extensive intrusive component of the Deccan Large Igneous Province in the Narmada Son Lineament region, India from three dimensional magnetotelluric studies." Earth and Planetary Science Letters 451 (October 2016): 168–76. http://dx.doi.org/10.1016/j.epsl.2016.07.005.

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Narimi, A. M., A. A. Rafiu, and U. D. Alhassan. "Application of high-resolution aeromagnetic data for structural frame work of Zamfara Basement Complex, North Western Nigeria." Dutse Journal of Pure and Applied Sciences 10, no. 2c (2024): 311–20. http://dx.doi.org/10.4314/dujopas.v10i2c.28.

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Zamfara state, located in the northwest of Nigeria, is regarded as one of the richest states in terms solid mineral abundance in Nigeria. Unofficial artisanal miners have found over 120 mining sites in the state. However, there is Insufficient knowledge of local and regional geology in the research area. High resolution aeromagnetic data were utilized to determine the depth of magnetic sources and basement tectonics. Clarifying the tectonic distribution of the basement complex and small portion of Sokoto sedimentary sequence within the research area is the aim of this investigation. Furthermor

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Komolafe, Akinola Adesuji, Zacharia Njuguna Kuria, Tsehaie Woldai, Marleen Noomen, and Adeleye Yekini Biodun Anifowose. "Integrated Remote Sensing and Geophysical Investigations of the Geodynamic Activities at Lake Magadi, Southern Kenyan Rift." International Journal of Geophysics 2012 (2012): 1–15. http://dx.doi.org/10.1155/2012/318301.

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The tectonic lineaments and thermal structure of Lake Magadi, southern Kenyan rift system, were investigated using ASTER data and geophysical methods. Five N-S faults close to known hot springs were identified for geoelectric ground investigation. Aeromagnetic data were employed to further probe faults at greater depths and determine the Curie-point depth. Results indicate a funnel-shaped fluid-filled (mostly saline hydrothermal) zone with relatively low resistivity values of less than 1 Ω-m, separated by resistive structures to the west and east, to a depth of 75 m along the resistivity profi

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Gastal, Maria do Carmo, Francisco José Fonseca Ferreira, Jefferson Ulisses da Cunha, et al. "Alojamento do granito Lavras e a mineralização aurífera durante evolução de centro vulcano-plutônico pós-colisional, oeste do Escudo Sul-riograndense: dados geofísicos e estruturais." Brazilian Journal of Geology 45, no. 2 (2015): 217–41. http://dx.doi.org/10.1590/23174889201500020004.

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<p>A construção do granito Lavras é analisada mediante integração de dados geológicos, geofísicos e estruturais originais e compilados, em consonância com a evolução do centro vulcano-plutônico. Esse centro engloba o complexo intrusivo Lavras do Sul e a sequência traquiandesítica da Formação Hilário (604 - 590 Ma), ambos formados em posição de antepaís durante o período pós-colisional da Orogênese Dom Feliciano, no oeste do Escudo Sul-riograndense. A análise de estruturas rúpteis e lineamentos magnéticos indica que o vulcanismo teve início próximo ao colapso dessa orogenia, condicionado

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Khandelwal, M. K., P. B. Maithani, P. C. Pant, P. K. Hansda, and S. Ramachandran. "Geological and Geochemical Studies on Carbonatites and Rocks of Carbonatitic (?) Affinity from Areas North of the Narmada Lineament in Madhya Pradesh and Gujarat." Journal Geological Society of India 50, no. 3 (1997): 307–13. http://dx.doi.org/10.17491/jgsi/1997/500309.

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Abstract In the region covering some 400 km2 immediately to the north of Narmada lineament between Dharmrai, Dhar district, Madhya Pradesh, in the east and Nakhal and Panwad, Vadodara district, Gujarat, in the west, numerous E-W to ENE-WSW trending linear fault zones (c.l km to 5 km long X 20 m to over 100 m wide) occur within the Deccan basalts and infratrappean rocks. Brownish, brecciated, calcareous rocks, often with pockets and veins of calcite (carbonatites ?) are found within such fracture zones, and many of them show intrusive-like features. These faults apparently have developed sympat

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Zghibi, Adel, Ali Mirchi, Mohamed Haythem Msaddek, et al. "Using Analytical Hierarchy Process and Multi-Influencing Factors to Map Groundwater Recharge Zones in a Semi-Arid Mediterranean Coastal Aquifer." Water 12, no. 9 (2020): 2525. http://dx.doi.org/10.3390/w12092525.

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Mapping groundwater recharge zones (GWRZs) is essential for planning artificial recharge programs to mitigate groundwater decline and saltwater intrusion into coastal aquifers. We applied two multi-criteria decision-making approaches, namely the analytical hierarchy process (AHP) and the multi-influencing factors (MIF), to map GWRZs in the Korba aquifer in northeastern Tunisia. GWRZ results from the AHP indicate that the majority (69%) of the area can be classified as very good and good for groundwater recharge. The MIF results suggest larger (80.7%) very good and good GWRZs. The GWRZ maps imp

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Barbuena, Danilo, Carlos Roberto de Souza Filho, Emilson Pereira Leite, et al. "AIRBORNE GEOPHYSICAL DATA ANALYSIS APPLIED TO GEOLOGICAL INTERPRETATION IN THE ALTA FLORESTA GOLD PROVINCE, MT." Revista Brasileira de Geofísica 31, no. 1 (2013): 169. http://dx.doi.org/10.22564/rbgf.v31i1.254.

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The Alta Floresta Gold Province (AFGP) is located in the central-southern portion of the Amazon Craton. In its eastern segment there are more than one hundred gold deposits hosted in volcanic and plutonic rocks of medium to high content of potassium. In many of these deposits the gold ore is correlated spatially and genetically hydrothermal systems and mainly hosted into the silicification potassic and sericitic. In this context, this work focuses on understanding the geological context of the region and the possibility of expanding new exploratory frontiers through techniques further traditio

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Oyem, Michael N., Jacob Meye, Hector Henry Oyem, Ufuoma E. Ogbijara, Samson O. Okpo, and Akpomrere Rufus. "Geospatial Analysis of Heavy Metal Intrusion in Groundwater Resources of Isoko North Local Government Area, Delta State, Nigeria: A GIS and AHP Approach." Journal of Pollution Monitoring, Evaluation Studies and Control 4, no. 1 (2025): 67–78. https://doi.org/10.54117/jpmesc.v4i1.13.

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This study compared the regional variations of heavy metal intrusion in subterranean water resources of Isoko North Local Government Area, Delta State, using ten (10) spatially distributed boreholes. The data were subjected to the Heavy Metal Index (HMI) technique to determine the significant contamination rate (with the World Health Organization Standard and the Nigerian Standard for Drinking Water Quality as the control variables). The investigation revealed that lead (Ppm) values ranged from 0.11 to 0.18, with higher concentrations in Owhelogho (0.18), Iyede (0.18), and Ellu (0.17). The Iro

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Chucuya, Samuel, Alissa Vera, Edwin Pino-Vargas, André Steenken, Jürgen Mahlknecht, and Isaac Montalván. "Hydrogeochemical Characterization and Identification of Factors Influencing Groundwater Quality in Coastal Aquifers, Case: La Yarada, Tacna, Peru." International Journal of Environmental Research and Public Health 19, no. 5 (2022): 2815. http://dx.doi.org/10.3390/ijerph19052815.

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The coastal aquifer La Yarada has anthropogenic and geogenic contamination that adversely affect the quality of groundwater for population and agricultural use. In this scenario, multivariate statistical methods were applied in 20 physicochemical and isotopic parameters of 53 groundwater pumping wells in October 2020, with the aim of characterizing the hydrogeochemical processes that dominate the groundwater of the coastal aquifer and the factors that cause them to optimize the effective management of water resources, delimiting areas affected by more than one salinization process. The samples

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