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Journal articles on the topic 'And structure of fault zones'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

Zhou, Hui, Yihuan Shen, Yong Zhu, Gang Han, Chuanqing Zhang, and Ning Zhang. "Multilevel Structural Characteristics of Jinshajiang Main Fault and Its Influence on Engineering." Advances in Materials Science and Engineering 2022 (March 8, 2022): 1–12. http://dx.doi.org/10.1155/2022/7852652.

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It is of great significance to study the geological characteristics of faults and the corresponding displacement patterns for the tunnel engineering crossing active faults. On the basis of field investigation and geological data analysis, it is found that the secondary weak structures, such as narrow cleavage bands, narrow joint bands, fault gouge zones, and small folds, often appear in the fault fracture zones and affected zones. The multilevel structure of fault is proposed from mechanics and engineering by summarizing their main characteristics. Taking the outcrop of fracture zones of Batan

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2

Kolyukhin, Dmitriy R., Vadim V. Lisitsa, Maxim I. Protasov, et al. "Seismic imaging and statistical analysis of fault facies models." Interpretation 5, no. 4 (2017): SP71—SP82. http://dx.doi.org/10.1190/int-2016-0202.1.

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Interpretation of seismic responses from subsurface fault zones is hampered by the fact that the geologic structure and property distributions of fault zones can generally not be directly observed. This shortcoming curtails the use of seismic data for characterizing internal structure and properties of fault zones, and it has instead promoted the use of interpretation techniques that tend to simplify actual structural complexity by rendering faults as lines and planes rather than volumes of deformed rock. Facilitating the correlation of rock properties and seismic images of fault zones would e

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3

Seminsky, К. Zh, A. S. Cheremnykh, O. M. Khlystov, and G. G. Akhmanov. "Fault Zones and Stress Fields in the Sedimentary Fill of Lake Baikal: Tectonophysical Approach for Seismic and Hydroacoustic Data Interpretation." Russian Geology and Geophysics 63, no. 7 (2022): 840–55. http://dx.doi.org/10.2113/rgg20204293.

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Abstract —This paper presents a schematic summary of comprehensive analysis of seismic, reflection profiling, and hydroacoustic data on faults which caused sediment deformation in the central segment of the Central Baikal basin. According to the tectonophysical analysis results, the fault pattern within sediment fill has been recognized as zone-block, i.e., it represents a network of high-density fracture zones limiting weakly deformed blocks. The structure of large NE-trending fault zones (Olkhon, Beregovoy, Gydratny, and Svyatoy Nos) is controlled by main fault planes (or their segments) bou

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4

Karson, Jeffrey A., Bryndís Brandsdóttir, Páll Einarsson, Kristján Sæmundsson, James A. Farrell, and Andrew J. Horst. "Evolution of migrating transform faults in anisotropic oceanic crust: examples from Iceland." Canadian Journal of Earth Sciences 56, no. 12 (2019): 1297–308. http://dx.doi.org/10.1139/cjes-2018-0260.

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Major transform fault zones link extensional segments of the North American – Eurasian plate boundary as it transects the Iceland Hotspot. Changes in plate boundary geometry, involving ridge jumps, rift propagation, and related transform fault zone migration, have occurred as the boundary has moved relative to the hotspot. Reconfiguration of transform fault zones occurred at about 6 Ma in northern Iceland and began about 3 Ma in southern Iceland. These systems show a range of different types of transform fault zones, ranging from diffuse, oblique rift zones to narrower, well-defined, transform

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5

Niu, Zhiyong, and Bing Bai. "Influence of Structural Symmetry of Fault Zones on Fluid-Induced Fault Slips and Earthquakes." Water 16, no. 8 (2024): 1118. http://dx.doi.org/10.3390/w16081118.

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Subsurface fluid injection and extraction can reactivate faults and induce earthquakes. In current research, faults are typically described as symmetrical structures and the presence of asymmetric structures is often overlooked. The reality is that numerous asymmetric faults exist within the Earth’s crust. The architectural and permeability characteristics of fault zones differ significantly between symmetrical and asymmetrical faults. These differences may have a great influence on fault stability during fluid injection or extraction. In this study, the impact of fault zone structures on flui

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Chen, Wei, Dan Wu, Minzhe Yu, et al. "Active Fault Dislocation-Induced Mechanical Response of Polyurethane-Solidified Track in Tunnels." Materials 18, no. 11 (2025): 2492. https://doi.org/10.3390/ma18112492.

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The dislocation of the active fault zone altered the stress distribution and geometry of the track structure in the tunnel, which in turn affected the safety and stability of the train operation. Polyurethane-solidified track bed (PSTB) is suitable for sections crossing through active fault zones due to its excellent serviceability and adaptability to deformation. In this study, the stress and deformation response induced by active fault dislocation are investigated for this novel track structure. The corresponding deformation of track structure is subsequently introduced into a vehicle-track

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7

Cherubini, Y., M. Cacace, M. Scheck-Wenderoth, and V. Noack. "Influence of major fault zones on 3-D coupled fluid and heat transport for the Brandenburg region (NE German Basin)." Geothermal Energy Science 2, no. 1 (2014): 1–20. http://dx.doi.org/10.5194/gtes-2-1-2014.

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<p><strong>Abstract.</strong> To quantify the influence of major fault zones on the groundwater and thermal field, 3-D finite-element simulations are carried out. Two fault zones – the Gardelegen and Lausitz escarpments – have been integrated into an existing 3-D structure of the Brandenburg region in northeastern Germany. Different geological scenarios in terms of modelled fault permeability have been considered, of which two end-member models are discussed in detail. In addition, results from these end-member simulations are compared to a reference case in which no faults a

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8

Merkulova, T. V. "The features of fault tectonics and deep structure of the seismoactive zones in Eastern Priamurye." Вулканология и сейсмология, no. 5 (August 15, 2019): 22–35. http://dx.doi.org/10.31857/s0203-03062019522-35.

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The paper examines the spatial relationship between the seismoactive zones in eastern Priamurye (М ≥ 5) and the regional faults and hidden fault zones identified from the gravity and magnetic anomaly axes. The seismoactive zones where earthquakes with М ≥ 5 occurred are mostly confined to the regional faults, though such a relationship has not been validated in two cases. The seismoactive zones are detected both at the regional fault intersection and in areas where the regional faults intersect with the hidden faults of various ranks. According to the data obtained by deep seismic sounding (DS

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9

Özsayin, Erman, and Kadir Dirik. "The role of oroclinal bending in the structural evolution of the Central Anatolian Plateau: evidence of a regional changeover from shortening to extension." Geologica Carpathica 62, no. 4 (2011): 345–59. http://dx.doi.org/10.2478/v10096-011-0026-7.

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The role of oroclinal bending in the structural evolution of the Central Anatolian Plateau: evidence of a regional changeover from shortening to extensionThe NW-SE striking extensional Inönü-Eskişehir Fault System is one of the most important active shear zones in Central Anatolia. This shear zone is comprised of semi-independent fault segments that constitute an integral array of crustal-scale faults that transverse the interior of the Anatolian plateau region. The WNW striking Eskişehir Fault Zone constitutes the western to central part of the system. Toward the southeast, this system splays

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10

Damayanti, Cahya, Sismanto Sismanto, Ari Setiawan, and Lina Handayani. "IDENTIFYING THE BASEMENT STRUCTURE OF THE SULA FAULT ZONE IN THE BANGGAI-SULA MICROCONTINENT REGION, MOLUCCA SEA, BASED ON 2D GRAVITY INVERSION MODELLING USING PARTICLE SWARM OPTIMISATION AND 3D MODELLING USING GRABLOX." Rudarsko-geološko-naftni zbornik 40, no. 2 (2025): 137–54. https://doi.org/10.17794/rgn.2025.2.10.

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This study aims to delineate the basement structure of Sula fault zones within the Banggai-Sula Microcontinent Region through the implementation of 2D and 3D gravity inversion modelling. The Sula fault is a consequence of the convergence between the Banggai-Sula Microcontinent and northern regions, or the compression caused by the extrusion of material from the Molucca Sea collision zone to the south. This is an active fault, with a few earthquakes in the last two decades. As a complex active fault, this presents several questions, particularly about the fault’s structure. Residual anomaly dat

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11

Nikiforov, V. V., Sh H. Sultanov, Yu A. Kotenev, N. V. Shabrin, and A. R. Sharafutdinov. "Influence of facies and tectonic structure on the reservoir properties distribution." SOCAR Proceedings, no. 2 (2023): 009–15. http://dx.doi.org/10.5510/ogp20230200840.

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The lithofacies features influence of productive strata and a system of tectonic faults on the reservoir properties distribution of Jurassic deposits one of the area of Western Siberia was analysed. Main productive strata in this place is Tyumen suite. The facies model of field was updated according reconstruction of sedimentation environment by electrometric facies models (by Muromcev V. S), interpretation results of seismic and core descrition. Dedicated sedimentation zones show main conception of Western Siberia basin evolution in Jurassic. Lithofacies analysis allow to identify main featur

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Shabarov, Arkadiy, Anton Kuranov, Anton Popov, and Sergey Tsirel. "Geodynamic risks of mining in highly stressed rock mass." E3S Web of Conferences 129 (2019): 01011. http://dx.doi.org/10.1051/e3sconf/201912901011.

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The paper discloses that geological faults and phenomena associated therewith are the main risks of mining. The phenomena of fault activity and specific features of near-fault zones, determining their impact on the stability of mine workings and other man-made objects are discussed in detail. Different sections of faults are classified according to the degree and types of risk. The main attention is paid to the most stressed zones, where the fault is a closely spaced crack in the rock, characterized by specific strength and rock-bump hazard effect. The paper discloses that although mining oper

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13

Platt, J. P., and W. M. Behr. "Deep structure of lithospheric fault zones." Geophysical Research Letters 38, no. 24 (2011): n/a. http://dx.doi.org/10.1029/2011gl049719.

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14

Kalashnik, A. I., and N. A. Kalashnik. "Modeling of the stress-strain state at the Shtokman gas condensate field accounting its block structure." Journal of Physics: Conference Series 2094, no. 2 (2021): 022015. http://dx.doi.org/10.1088/1742-6596/2094/2/022015.

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Abstract The stress-strain state of the Shtokman gas condensate field has been studied using mathematical modeling and accounting its block structure. It is assumed that the rock mass’s structure has a vertical block structure, which is under the influence of gravity and tectonic force fields. It has been revealed that the stress-strain state of the rocks depends essentially on relationships of initial operating efforts and in-situ gas pressure, which magnitude varies with its production; direction of the maximum forces and dip of angles of fault zones; and elastic characteristics of the main

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15

Johnson, Jeffrey A. "Off-fault Deformation Associated with Strike-slip Faults." Environmental and Engineering Geoscience 24, no. 4 (2018): 375–84. http://dx.doi.org/10.2113/eeg-2030.

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Abstract Habitable buildings can be protected from surface fault rupture by establishing structure “setback zones” similar in purpose to legally mandated zones in California and Utah. But post-earthquake surveys of offset and warped linear cultural features, believed to have been straight prior to the event, demonstrate that potentially damaging inelastic strains or off-fault deformation can extend tens of meters beyond the principal slip zone of strike-slip surface fault ruptures. Setback zones designed to also mitigate off-fault deformation are likely to be prohibitively wide, indicating the

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16

Cheremnykh, A. V. "Parageneses of fractures in large fault zones of West Transbaikalia." Geodynamics & Tectonophysics 9, no. 3 (2018): 889–908. http://dx.doi.org/10.5800/gt-2018-9-3-0375.

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Our study was focused on the parageneses of heterogeneous fractures in the large fault zones of West Transbaikalia,Russia. We reconstructed the latest deformation in the fault zones of Transbaikalia, within which paleoseismic dislocations are known and M 4.7 earthquakes take place. To obtain statistically justified solutions on the kinematic types of the largest faults ofWest Transbaikalia, we collected the required data and conducted the structural and paragenetic analysis of the fractures in the study area. In the Chikoi-Ingoda, Khilok, North Tugnui andNorth Zaganfault zones, we created a ne

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17

Qiu, Chun, Ming Xue Zhang, and Xiao Yan Lv. "The Local Structure Research on the Nanpu 5th Construct." Applied Mechanics and Materials 733 (February 2015): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amm.733.80.

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The Nanpu 5th construct is in the western part of Huanghua Depression Nanpu Sag of Bohai Bay Basin, was a complicated anticline belt that develops between Jian Dong fault and the downthrown side of the southwestern Zhuang fault and the favorable exploration area is 120km2. On the basis of the region's large number of multi-channel seismic data analysis and interpretation, the trap types, structural characteristics and distribution of local structures between the layers of the region are researched. Interlayer local structures in the area are mainly divided into nose structure and small anticli

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18

Huang, Rui, Liqun Li, and Zhiyi Chen. "Effects of Reverse Fault Dislocation Application Method for Tunnelling Through Active Faults." IOP Conference Series: Earth and Environmental Science 1334, no. 1 (2024): 012026. http://dx.doi.org/10.1088/1755-1315/1334/1/012026.

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Abstract Active faults seriously threaten the structural integrity of mountain tunnels in seismic zones, and reverse faults are the most hazardous. A tunnel project in the western region was used as a reference to analyze the damage mechanism of tunnels under different modes of reverse fault displacement. The ABAQUS finite element analysis software was employed for the numerical simulation, and a quasi-static method was adopted to analyze the displacement and stress response patterns of the tunnel structure traversing the fault under three typical modes of reverse fault displacement. This led

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19

Baars, D. L. "Basement Tectonic Configuration in Kansas." Bulletin (Kansas Geological Survey), no. 237 (April 16, 2024): 7–9. https://doi.org/10.17161/kgsbulletin.no.237.20414.

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The structure of the Precambrian basement of Kansas, midcontinent USA, is dominated by conjugate north-northeast- and northwest-trending wrench fault zones. North-northeast-trending faults of the Midcontinent Rift System (MRS) extend from Lake Superior across Kansas and into north-central Oklahoma. The fault zone widens from about 100 km (60 mi) in northeast Kansas to more than 160 km (96 mi) in south-central Kansas in a series of horsetail splays. North-northeast-trending structures of the MRS are displaced by about 80 km (48 mi) of dextral offset by the northwest-trending strike-slip fault z

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20

Theilen-Willige, Barbara. "Overview of Fault Zones Based on Remote Sensing Data as Contribution to the Safety of Infrastructure and Land Use in Southern Egypt." Prevention and Treatment of Natural Disasters 3, no. 1 (2024): 17–50. http://dx.doi.org/10.54963/ptnd.v3i1.227.

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Part of a requisite for natural hazard awareness and damage prevention in Egypt is the detailed monitoring of surface fault zones. The inventory of active faults and their risk assessment is an essential contribution to the safety of settlements, land use and infrastructure (railroads, highways, pipelines) and to damage prevention. Thus, this study aims to contribute to the detection, inventory, and documentation of fault zones. Surface faulting hazard assessment considers any surface consequences caused by surface near faults such as abrupt horizontal and vertical displacements and rotations,

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21

Soloviev, A. "Transformation of frequency-magnitude relation prior to large events in the model of block structure dynamics." Nonlinear Processes in Geophysics 15, no. 1 (2008): 209–20. http://dx.doi.org/10.5194/npg-15-209-2008.

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Abstract. The b-value change in the frequency-magnitude (FM) distribution for a synthetic earthquake catalogue obtained by means of the model of block structure dynamics has been studied. The catalogue is divided into time periods preceding strong earthquakes and time periods that do not precede strong earthquakes. The separate analysis of these periods shows that the b-value is smaller before strong earthquakes. The similar phenomenon has been found also for the observed seismicity of the Southern California. The model of block structure dynamics represents a seismic region as a system of per

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22

Zhou, Wei Wei, Wei Feng Wang, and Zhou Jie. "Characteristics of Subtle Fault Zone in Jinhu Sag." Advanced Materials Research 1010-1012 (August 2014): 1399–403. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.1399.

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Subtle fault zones are caused by the weak deformation generated in the sedimentary cover of a sag due to the influence of regional or local stress fields or basement faults. They are too subtle to be easily identified by conventional exploration methods and technologies and are thus usually ignored. Research results prove that there are two basement faults in the Jinhu sag referred to as the NE-and NW-trending basement faults. Parts of the NE-trending basement fault are intense enough to control sag formation and evolution (such as the faults in Yangcun and Shigang, etc.). However, the NW-tren

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23

Denlinger, Roger P., and Daniel R. H. O’Connell. "Evolution of Faulting Induced by Deep Fluid Injection, Paradox Valley, Colorado." Bulletin of the Seismological Society of America 110, no. 5 (2020): 2308–27. http://dx.doi.org/10.1785/0120190328.

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ABSTRACT High-pressure fluid injection into a subhorizontal confined aquifer at 4.3–4.6 km depth induced &gt;7000 earthquakes between 1991 and 2012 within once seismically quiescent Paradox Valley in Colorado, with magnitudes up to Mw 3.9. Earthquake hypocenters expanded laterally away from the well with time, defining the margins of the aquifer pressurized by injection at the well. Within 5 km of the well, alignment of earthquake hypocenters defines strikes of nine vertical fault zones. Previous studies show that these fault zones predate injection, producing left-stepping offsets in the

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24

Wu, Guanghui, En Xie, Yunfeng Zhang, Hairuo Qing, Xinsheng Luo, and Chong Sun. "Structural Diagenesis in Carbonate Rocks as Identified in Fault Damage Zones in the Northern Tarim Basin, NW China." Minerals 9, no. 6 (2019): 360. http://dx.doi.org/10.3390/min9060360.

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The identification of structural diagenesis and the reconstruction of diagenetic paragenesis in fault damage zones is important for understanding fault mechanisms and fluid flow in the subsurface. Based on the examination of core and sample thin section data, we deciphered the diagenetic parasequence and their fault controls for Ordovician carbonates in the northern Tarim intracratonic basin in NW China (Halahatang area). In contrast to the uniform nature of diagenesis observed in country rocks, there is a relatively complicated style of compaction and pressure solution, multiple fracturing, a

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Nkodia, H. M. D.-V., T. Miyouna, D. Delvaux, and F. Boudzoumou. "Flower structures in sandstones of the Paleozoic Inkisi Group (Brazzaville, Republic of Congo): evidence for two major strike-slip fault systems and geodynamic implications." South African Journal of Geology 123, no. 4 (2020): 531–50. http://dx.doi.org/10.25131/sajg.123.0038.

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Abstract Few studies have reported field descriptions of flower structures associated with strike-slip faults. This study describes and illustrates flower structures near Brazzaville (Republic of Congo) and explains their implication for the tectonic history of the Paleozoic Inkisi Group. Field observations show that the Inkisi Group is affected by two major strike-slip fault systems. The oldest system is dominated by north-northwest–south-southeast striking sinistral strike-slip faults and minor east–west striking dextral strike-slip faults. The youngest system consists of dominant northeast–

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Ben-Zion, Yehuda, and Charles Sammis. "Mechanics, Structure and Evolution of Fault Zones." Pure and Applied Geophysics 166, no. 10-11 (2009): 1533–36. http://dx.doi.org/10.1007/s00024-009-0509-y.

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27

Reski, Ezidin, Taufik Al Amin, Yuris Ramadhan, Randy Wijaya Atmaja, and Maxwell Wilmarth. "Structural Model Update on the Patuha geothermal system, West Java, Indonesia." IOP Conference Series: Earth and Environmental Science 1293, no. 1 (2024): 012005. http://dx.doi.org/10.1088/1755-1315/1293/1/012005.

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Abstract The Patuha geothermal field is a steam-dominated geothermal system lying on a quaternary volcanic unit in West Java Province, Indonesia. The existence of manifestations in this field is interpreted from the structure control and rock deformation that generate steam production in reservoir zone. This updated study is aimed to further describe the geometry and kinematics of the geological structures model to estimate the permeable areas. The model also will explain the link between the larger tectonic framework and the detailed structure model scale in Patuha. The analysis consists of r

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Putra, Ahmad Dedi, Norasiah Sulaiman, Norsyafina Roslan, Habibah Jamil, and Khairunnisa Alias. "Fault Zone Identification for Groundwater Flow Assessment Based On Seismic Reflection Survey Data at the Area of Felda Lepar Utara, Pahang, Malaysia." Journal of Physics: Conference Series 2309, no. 1 (2022): 012037. http://dx.doi.org/10.1088/1742-6596/2309/1/012037.

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Abstract Geological structures such as faults and fractures have an important influence in the process of fluid movement below the surface. The hydraulic behavior in aquifers can be determined by proper characterization of fractures, fault zones and their connectivity. In this study, we concern on detection and identification of fault zones in the groundwater basin to verify whether faults in the basin area connect to the surface, and whether the fault zones occurring serve as conduits or barriers for groundwater to flow. The seismic reflection method with Common Depth Point (CDP) profiling te

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Kettermann, Michael, Steffen Abe, Alexander F. Raith, Jan de Jager, and Janos L. Urai. "The effect of salt in dilatant faults on rates and magnitudes of induced seismicity – first results building on the geological setting of the Groningen Rotliegend reservoirs." Netherlands Journal of Geosciences 96, no. 5 (2017): s87—s104. http://dx.doi.org/10.1017/njg.2017.19.

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AbstractThe presence of salt in dilatant normal faults may have a strong influence on fault mechanics in the Groningen field and on the related induced seismicity. At present, little is known of the structure of these fault zones. This study starts with the geological evolution of the Groningen area, where, during tectonic faulting, rock salt may have migrated downwards into dilatant faults. These fault zones therefore may contain inclusions of rock salt. Because of its rate-dependent mechanical properties, the presence of salt in a fault may introduce a loading-rate dependency into fault move

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Setiadi, Tio Azhar Prakoso, Edy Hartulistiyoso, Muhammad Nur Aidi, et al. "Identification of faults in the subsurface of Java Island using the ambient noise tomography method." MAUSAM 76, no. 2 (2025): 619–28. https://doi.org/10.54302/mausam.v76i2.6195.

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This study applies the Ambient Noise Tomography (ANT) method to identify faults in the subsurface seismic structure of Java Island, characterized by complex tectonic conditions. The research utilizes waveform data recorded in 2021 by 99 BMKG stationary seismic sensors distributed across Java Island. Data processing includes single data preparation, cross-correlation, stacking, dispersion curve measurement, group velocity tomography, and result interpretation. The inversion process generates tomographic images of Rayleigh wave group velocities ranging from 1.88 km/s to 2.60 km/s, revealing sign

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Widagdo, Asmoro, and Aang Panji Permana. "Extentional Fault Pada Daerah Compressive Tectonic Zone Sebagai Batas Cekungan Di Jawa Tengah Selatan." Jambura Geoscience Review 3, no. 1 (2021): 40–45. http://dx.doi.org/10.34312/jgeosrev.v3i1.8121.

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The extensional structure as a normal fault could be found in many places at the southern part of Java compressive tectonic regime. The research area is in the eastern part of the South Serayu Mountains. This normal fault structure is the boundary of the South Serayu Mountains at the eastern part with Kulon Progo Tertiary volcanic Mountains. In the field, these normal fault lineament zones create the Bogowonto river as a boundary of two different geological styles. The influence of this structure on the geological dynamic of the South Serayu Mountains and the Kulon Progo Mountains is important

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Grant, Neil T. "Stochastic modelling of fault gouge zones: implications for fault seal analysis." Geological Society, London, Special Publications 496, no. 1 (2019): 163–97. http://dx.doi.org/10.1144/sp496-2018-135.

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AbstractFault zones are complex, and show considerable variability in both structure and the distribution of associated fault rocks within the fault core: the zone that localizes most strain and displacement. It is the fault-core gouge zone and associated slip surfaces which provide the cross-fault seal when permeable layers are juxtaposed. Predicting the sealing properties of fault gouge zones is difficult but often required when evaluating faults in exploration prospects. A stochastic modelling approach is described to help better understand the compositional controls on fault gouge seal pot

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Sun, Yang, Zhongquan Li, Zeqing Wang, and Qinzhi Li. "Physical Simulation Experimental Device for Basement Shear Structure: Simulation and Feasibility Study of Strike-Slip Fault Zones." Journal of Innovation and Development 5, no. 3 (2023): 79–82. http://dx.doi.org/10.54097/if8a51xv.

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Structural physical simulation research is an important means of studying the geometric evolution process of structures intuitively. We have designed a new basement shear structure physical simulation experimental device and applied it to the physical simulation of strike-slip fault zones. We recorded different stages of horizontal displacement along the underlying basal fault, the typical surface evolution of deformed quartz sand bodies, and evaluated the feasibility of the device for simulating strike-slip fault zones. The experimental results indicate that the evolution process of the strik

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Bui, Duong Minh, Shi-Lin Chen, Keng-Yu Lien, and Jheng-Lun Jiang. "A Generalised Fault Protection Structure Proposed for Uni-grounded Low-Voltage AC Microgrids." International Journal of Emerging Electric Power Systems 17, no. 2 (2016): 69–89. http://dx.doi.org/10.1515/ijeeps-2015-0151.

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Abstract This paper presents three main configurations of uni-grounded low-voltage AC microgrids. Transient situations of a uni-grounded low-voltage (LV) AC microgrid (MG) are simulated through various fault tests and operation transition tests between grid-connected and islanded modes. Based on transient simulation results, available fault protection methods are proposed for main and back-up protection of a uni-grounded AC microgrid. In addition, concept of a generalised fault protection structure of uni-grounded LVAC MGs is mentioned in the paper. As a result, main contributions of the paper

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Shnyukov, Ye F., and V. P. Kobolev. "FIRE GAS PLUMES DURING THE 1927 YALTA EARTHQUAKES." Geology and Mineral Resources of World Ocean 17, no. 4 (2021): 3–20. http://dx.doi.org/10.15407/gpimo2021.04.003.

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In the Black Sea near Yalta in 1927 there were massive methane outbursts, accompanied by flames over the water. The fire was associated with methane emissions that entered through tectonic faults. The faults were caused by seismic movements. The article analyses the depth structure of the focal zones and the nature of the seismic process and assesses the nature of the manifestations of the fires. The main factor is thought to be methane, which rises from the earth’s crust during earthquakes. The electric spark discharges generated by friction and collision of the earth’s crust ignited methane

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Fang, Wei, Gang Wang, and Chang Wang. "Effect of the Location of Fault Fracture Zones on the Stability of Symmetrical Submarine Tunnels." Symmetry 13, no. 7 (2021): 1111. http://dx.doi.org/10.3390/sym13071111.

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In this paper, we aim to reveal the influence of fault fracture zones on the stability of submarine tunnels and the surrounding rock under different water and drainage measures. Firstly, four typical working conditions of submarine tunnels intersecting with fault fracture zones were selected. On the basis of the typical cross section of the intersections of submarine tunnels and faults, they were divided into four working conditions. Then, the displacement and plastic zones of the surrounding rock of the tunnel were studied, and the stability of the rock surrounding the submarine tunnel was di

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Citra Wahyuningrum, Kevin Kevin, and Faqqih Badruzzaman. "Analisa Geologi Struktur Lapangan Geothermal Sarulla." Jurnal Ilmiah Teknik Informatika dan Komunikasi 3, no. 2 (2023): 174–88. http://dx.doi.org/10.55606/juitik.v3i2.518.

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Indonesia is a country with great potential geothermal energy resources. Geothermal resources in Sumatra are mostly located along magmatic arcs that correlate with the seismically active Sumatran Fault. One of the unexploited geothermal resources is located around the Tarutung basin, south of Lake Toba, North Sumatra. The presence of an open fracture or fracture correlates very well with depth. Geological structures consisting of faults, lineages, and volcanic features such as tuff-ring structures or maars were identified as a combination of these methods namely Interpretation of topographic m

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Wang, Ziyi, Zhiqian Gao, Tailiang Fan, Hehang Zhang, Lixin Qi, and Lu Yun. "Hydrocarbon-bearing characteristics of the SB1 strike-slip fault zone in the north of the Shuntuo Low Uplift, Tarim Basin." Petroleum Geoscience 27, no. 1 (2020): petgeo2019–144. http://dx.doi.org/10.1144/petgeo2019-144.

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The SB1 strike-slip fault zone, which developed in the north of the Shuntuo Low Uplift of the Tarim Basin, plays an essential role in reservoir formation and hydrocarbon accumulation in deep Ordovician carbonate rocks. In this research, through the analysis of high-quality 3D seismic volumes, outcrop, drilling and production data, the hydrocarbon-bearing characteristics of the SB1 fault are systematically studied. The SB1 fault developed sequentially in the Paleozoic and formed as a result of a three-fold evolution: Middle Caledonian (phase III), Late Caledonian–Early Hercynian and Middle–Late

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Ivolga, E. G., and Yu F. Manilov. "THE STRUCTURE OF THE WESTERN PRIOKHOTYE LITHOSPHERE (BASED ON THE INTERPRETATION OF GRAVITY DATA)." Tikhookeanskaya Geologiya 42, no. 3 (2023): 20–37. http://dx.doi.org/10.30911/0207-4028-2023-42-3-20-37.

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A density 3D model was constructed, which made it possible to identify inhomogeneities in the western Priokhotye lithosphere and to obtain geophysical characteristics of the main tectonic elements in the region. Qualitative analysis of the density profiles revealed features of fault tectonics at different depth levels. Oblique faults are shown to prevail in the crust of the region, while orthogonal faults prevail in the lithospheric mantle. It is established that the metamorphic basement of the northeastern margin of the North Asian Craton is divided by active long-lived zones into differently

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U. Ochoma. "Application of Time-Frequency Decomposition and Seismic Attributes for Stratigraphic Interpretation of Thin Reservoirs in Onshore Fuba Field Niger-Delta, Nigeria." Irish Interdisciplinary Journal of Science & Research 07, no. 02 (2023): 84–95. http://dx.doi.org/10.46759/iijsr.2023.7210.

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Application of time-frequency decomposition and seismic attributes for stratigraphic interpretation of thin reservoirs in Onshore Fuba Field Niger Delta, Nigeria, are here presented, using Well-log and 3D Seismic data. Well-to-seismic tie, fault mapping, horizon mapping, time surface generation, depth conversion and seismic attributes generation were carried out using Petrel software. Structural interpretation of seismic data reveals a highly faulted field. Two distinct horizons were mapped. Fault and horizon interpretation shows closures that are collapsed crestal structures bounded by two ma

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Duan, Taizhong, Wenbiao Zhang, Xinbian Lu, Meng Li, Huawei Zhao, and Xiaofei Shang. "Architectural characterization of Ordovician fault-controlled paleokarst carbonate reservoirs, Tahe oilfield, China." Interpretation 8, no. 4 (2020): T953—T965. http://dx.doi.org/10.1190/int-2019-0012.1.

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Fault-controlled karst carbonate reservoirs are one of the most important reservoir types in the Tahe oilfield of the Tarim Basin. These reservoirs have a large oil reserve and belong to a strongly reconstructed reservoir type with a highly heterogeneous distribution of pores and fractures. This study characterizes a fault-controlled karst reservoir by using integrated methods, including outcrops, well logging, structure interpretation, seismic inversion, and statistical geomodeling. We have established a fault-/fracture-controlling karstic geologic model and classified the internal architectu

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Kirkwood, Donna, and Michel Malo. "Across-strike geometry of the Grand Pabos fault zone: evidence for Devonian dextral transpression in the Quebec Appalachians." Canadian Journal of Earth Sciences 30, no. 7 (1993): 1363–73. http://dx.doi.org/10.1139/e93-117.

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The principal faults of southeastern Gaspé Peninsula in Quebec consist of a central high-strain zone that is characterized by mainly ductile deformation structures and bordered by low-strain zones each dominated by brittle deformation structures. The overall geometry of shear fractures within the low-strain zones is quite similar to the expected geometry of Riedel shear fractures. The brittle structures overprint the dominant C–S-type fabric of the high-strain zone, which implies that brittle deformation outlasted ductile deformation. The asymmetry of local micro- to meso-scale deformation fea

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Togao, Putri, Asrafil, and A. I. Abdullah. "Subsurface Identification of the Continuation of the Palu-Koro Fault Zone in the Palu Segment Using the Electrical Resistivity Method in the Area from Rogo to Bulubete, Sigi, Central Sulawesi." IOP Conference Series: Earth and Environmental Science 1517, no. 1 (2025): 012015. https://doi.org/10.1088/1755-1315/1517/1/012015.

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Abstract The earthquake that struck Central Sulawesi in 2018 caused significant material damage and casualties, due to the displacement of the Palu-Koro fault. The research location is in the area from Rogo to Bulubete, in South Dolo, Sigi, Central Sulawesi. The purpose of the research is to obtain an overview of the subsurface conditions and indications of the presence of faults beneath the surface, based on the interpretation of resistivity values from 2D profile sections. The geophysical method used is the 2D electrical resistivity method with the Wenner configuration, across two survey lin

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Wu, Gui Ju, Hui Liu, Zheng Bo Zou, Guang Liang Yang, and Chong Yang Shen. "3-Dimensional Inversion for Gravity Anomaly Calculation in Complex Geologic Region." Advanced Materials Research 962-965 (June 2014): 238–41. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.238.

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In the gravity anomaly dectection and the inversion of physical property, the parameters can reflect the characters and details of source. At the same time, it can enhance the resolution of the source. In this paper, gravity data from global 1-minute grids are applied to inverse the structure of Longmenshan fault zone, other small faluts, several active faults and geological stratum, the research area where is complex geologic region. The main goal of this paper is an attempt to interpret the gravity anomalies of faults in the Longmenshan Fault zones.

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Shvarev, S. V. "Morphotectonics, Seismicity, and Exogenous Processes of the Kola Peninsula." Russian Geology and Geophysics 63, no. 8 (2022): 940–54. http://dx.doi.org/10.2113/rgg20204310.

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Abstract —The purpose of this study is to determine a morphologically pronounced fault–block structure identified with the neotectonic stage and compare it with sites with manifested exogenous processes, as well as modern and historical paleoseismicity in order to establish faults activated in the postglacial time. Based on the analysis of space images (Landsat-ETM+) and a digital elevation model (GTOPO-30), the territory of the Kola Peninsula and the adjacent part of North Karelia is subjected to morphostructural interpretation with identifying morpholineaments and an elementary block structu

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Reitherman, Robert. "The Effectiveness of Fault Zone Regulations in California." Earthquake Spectra 8, no. 1 (1992): 57–77. http://dx.doi.org/10.1193/1.1585670.

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In 1990 a study was completed for the California Division of Mines and Geology on the effectiveness of California's fault zone regulations (the Alquist-Priolo Special Studies Zones Act and associated policies and activities). The Act, passed in 1972, instituted the following elements of a statewide mandatory approach to dealing with the hazard of surface fault rupture: state mapping of fault zones (Special Study Zones) where active faults are suspected; local government imposition of the requirement of a geologic study on new building projects within these Zones (with some single family dwelli

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Pupatenko, V. V., K. S. Ryabinkin, A. K. Bronnikov, and A. L. Verkhoturov. "EXPERIENCE OF COMPLEX MICROSEISMIC AND MAGNETOTELLURIC SOUNDING ON THE NORTHERN PART OF THE CENTRAL SIKHOTE-ALIN FAULT." Bulletin of Kamchatka Regional Association «Educational-Scientific Center». Earth Sciences, no. 2(50) (June 30, 2021): 84–94. http://dx.doi.org/10.31431/1816-5524-2021-2-50-84-94.

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We present the results of a study of the crustal structure of the northern part of the Central Sikhote-Alin Fault (CSAF) by methods of microseismic sounding (MSS) and magnetotelluric sounding (MTS). A geoelectric section based on MTS data and a section of relative velocities of P-waves according to MSS data were constructed and interpreted at a depth of up to 9 km and a length of 42 km. The main blocks, their boundaries, fault zones and some anomaly zones identified by microseismic and magnetotelluric sounding practically coincide. The CSAF zone is expressed by a narrow subvertical zone betwee

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Chalumeau, Caroline, Hans Agurto-Detzel, Andreas Rietbrock, et al. "Seismological evidence for a multifault network at the subduction interface." Nature 628, no. 8008 (2024): 558–62. http://dx.doi.org/10.1038/s41586-024-07245-y.

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AbstractSubduction zones generate the largest earthquakes on Earth, yet their detailed structure, and its influence on seismic and aseismic slip, remains poorly understood. Geological studies of fossil subduction zones characterize the seismogenic interface as a 100 m–1 km thick zone1–3 in which deformation occurs mostly on metres-thick faults1,3–6. Conversely, seismological studies, with their larger spatial coverage and temporal resolution but lower spatial resolution, often image the seismogenic interface as a kilometres-wide band of seismicity7. Thus, how and when these metre-scale structu

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Liu, Jianbao, Zhimin Song, Bing Li, et al. "Study on the Destructive Effect of Small Faults on Coal Pore Structure." Geofluids 2022 (October 3, 2022): 1–11. http://dx.doi.org/10.1155/2022/2124853.

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Small fault area in coal mine has great risk of coal and gas outburst. However, the damage effect of small faults on coal pore structure still lacks systematic research. Taking a small reverse fault under Pingmei No. 2 mine as an example, this paper collects the hanging wall coal samples within 5 m from the fault plane and the coal samples 50 m from the fault plane, where there is no fault development. The pore structure characteristics of the two coal samples were analyzed and compared by means of a scanning electron microscope, mercury injection, liquid nitrogen adsorption, and Raman spectro

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Bornyakov, S. A., I. A. Panteleev, A. V. Cheremnykh, and A. A. Karimova. "Physical modeling experiments to study periodic activation of faults in seismic zones." Geodynamics & Tectonophysics 9, no. 3 (2018): 653–70. http://dx.doi.org/10.5800/gt-2018-9-3-0366.

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Our study aimed to find a mechanism that controls preparation and subsequent full seismic activation of large faults that may act as sources of strong earthquakes. A large fault was physically modeled to investigate the dynamics of its deformation. The experiments were conducted on elastoviscoplastic and elastic models of the lithosphere. A digital camera was used to capture images in the course of the modeling experiments. The digital image correlation method (DIC) detected the moments of impulse activation and displacements along the entire fault or its major segment. Between the activation

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