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Publications related to Geology (10,000)
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Article
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Vertical infiltration of water plays an important role in the recharged of contaminated water and enhanced moisture content in the unsaturated porous media. The mathematical model used for such type of phenomenon is Burger's equation. Unsaturated porous media are analyzed by solving Burger's equation using the variational iterative modeling and hom...
Research Proposal
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Dear Colleagues, With the continuous advancement of coastal, offshore and deep-sea engineering construction (e.g., marine resource development, offshore wind power project), the researches on marine geological environment and hazards have gradually deepened and many research advances have been achieved, and therefore, the special issue is organize...
Conference Paper
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The study and review of different reports on the behavior of dams in addition to numerous field visits to operational dam sites in Khuzestan Province, south west of Iran show that geology affected extensively syn and post construction behavior of the constructed dams. This effect is mostly related to lithological limitations and structural controls...
Poster
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The formation and alteration of oceanic lithospheric rocks is an emerging subject. However, it is challenging to sample oceanic and sub-oceanic rocks. The fragments of oceanic lithospheres are sometimes tectonically emplaced onto the Earth's surface and preserved as "ophiolites". The ophiolites and associated rocks provide a unique opportunity to s...
Conference Paper
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High-Luminosity LHC (HL-LHC) is the new project aiming to upgrade the underground particle accelerator Large Hadron Collider (LHC), at Point 1 (ATLAS in Switzerland) and Point 5 (CMS in France). This paper describes the construction experience for the new underground works at Point 5, located near the existing LHC tunnel. From a geological point of...
Article
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The stick-slip phenomenon, at the basis of friction, is crucial for several applications ranging from nanotechnology and biophysics to mechanics and geology. Deep understanding of friction mechanisms and, in particular, the methodologies for its reduction must be sought in its nanoscopic nature, where atomic interactions and stick-slip processes pl...
Article
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Exploration of Venus in the 1970–1990s revealed that the geology of Venus, the most Earth-like of the terrestrial planets, was decidedly un-Earth-like, with no plate tectonics, and no record of the first 80% of its history. A major outstanding question is whether Venus is still volcanically active today. We find that regions of Ganis Chasma have lo...
Article
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Fossil marine reptile bones are reported from the Late Cretaceous Punakitere Sandstone (?Haumurian Stage) of the Northland Allochthon at Koutu Boulders, in the Hokianga district, Northland, New Zealand. These are very worn and fragmentary making identification difficult, in this initial diagnosis they are thought to represent a variety of skeletal...
Article
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Quetta being the largest city in the province is prone to damaging earthquake hazards. Identifying the causative factors to earthquake vulnerability is one of the most important parts of earthquake risk evaluation. The main objective of this study is to identify factors contributing of earthquake vulnerability based on public perception. Nearly 400...
Article
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The Barreiras Formation comprises approximately 75% of the urban area of Maceio-Alagoas, which has a vast number of steep densely occupied slopes, located in embedded valleys called “grotas” where erosive processes cause a high risk of landslides. Despite the homogeneity of the local geology, the Barreiras Formation still presents few studies that...
Article
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To validate the application of machine learning (ML) to rock engineering practice, it is crucial that algorithm developers use appropriate methods to quantify how closely the ML reproduces the observed rock mass deformation. Input variable selection (IVS) is one approach that examines how ML uses the given data, or inputs, to forecast rock mass beh...
Article
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How does something like the Earth generate philosophy? This is the question of geophilosophy, which forms one of the central political claims in Deleuze and Guattari's work. Only when philosophy recognizes itself as the expression of the prephysical forces that bring the planetary into being does a genuine ethics of the future becomes possible.
Conference Paper
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Resumo: O uso de dispositivos móveis como parte integrante da prática pedagógica permite a utilização de métodos de ensino e aprendizagem mais ativos, motivadores e significativos. Contribui, também, para a aproximação da escola à realidade da sociedade, cada vez mais tecnológica, em que os estudantes estão inseridos. Com este trabalho pretende-se...
Article
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An explanation of what people should do, and not do, in the event of an earthquake. This article published in California Geology debunks some commonly heard advice that is erroneous.
Conference Paper
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Los Aprovechamientos Hidroeléctricos del Río Santa Cruz (AHRSC) consisten en un proyecto hidroeléctrico compuesto por dos grandes represas sobre dicho río en la Patagonia austral Argentina. La represa Cóndor Cliff-Néstor Kirchner (CC-NK), la más occidental de las dos represas que ahora se están construyendo (la otra es la represa La Barrancosa-Jorg...
Article
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The electrical resistivity methods are widely used for identifying the complex subsurface lithology and delineating the characteristics of the aquifer. A field data acquisition system has been performed to enable an electrical image to be produced for a site located at Jahangirnagar Model town adjacent to Islamnagar Bazar area, Savar, Dhaka, Bangla...
Book
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Sequestration of CO2 in coal has potential to reduce greenhouse gas emissions from coalfired power plants while enhancing coalbed methane recovery. Data from more than 4,000 coalbed methane wells in the Black Warrior basin of Alabama provide an opportunity to quantify the carbon sequestration potential of coal and to develop a geologic screening mo...
Article
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The West Kalabsha (WKAL) area is a western extreme exploratory area of the Faghur Basin in the Western Desert of Egypt. The study of four wells (WKAL; A-1 X, K-1 X, P-1X, and C-1 X), interpreted with twenty seismic lines, shows that the area is dissected by a series of normal faults with an irregular, E-W strike direction. The general trend of the...
Article
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Resumo A demanda por métodos alternativos de avaliação qualitativa do solo que auxiliem no planejamento e tomada de decisão agrícola e política tem crescido nas últimas décadas. O alto custo e tempo necessário para levantamentos de campo são entraves que oneram a obtenção de conhecimento para o correto manejo do solo e das culturas agrícolas. Assim...
Article
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Background The Cerrado of central Brazil—the world’s largest Neotropical savanna – is comprised of a mosaic of highly heterogeneous vegetation growing on an extremely diverse geologic and geomorphologic background. Geomorphic processes under stable tectonic and climatic conditions facilitated the development of diverse edaphic properties, which int...
Article
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ABSTRAK Laut Natuna Utara merupakah wilayah teritorial Republik Indonesia yang kaya akan sumber daya alamnya. Hal tersebut tidak terlepas dari aspek sejarah geologis yang telah terjadi di masa lampau. Keberadaan sungai purba yang dahulu pernah mengalir menuju perairan Laut Natuna Utara menjadi salah satu penyebab munjulnya potensi sumberdaya alam y...
Article
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Crystal nucleation is one of the most fundamental processes in the physical sciences and almost always occurs heterogeneously with the aid of a nucleating substrate. No example of nucleation is more ubiquitous and impactful than the formation of ice, vital to fields as diverse as geology, biology, aeronautics, and climate science. However, despite...
Article
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Severe droughts and mismanagement of water resources during the last decades have pro�pelled authorities in the Kurdistan Region to be con�cerned about better management of precipitation which is considered the primary source of recharg�ing surface and groundwater in the area of interest. The drought cycles in the last decades have stimu�lated wate...
Preprint
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Sheet 201 and 223 part of Ilorin, southwestern Nigeria was studied. The aim was to evaluate the foundation conditions to assess the stability of the selected earth dams. The data set was interpreted to identify dykes, lineaments and magnetic sources controlling subsurface geology. The extracted lineament structures were employed to examine features...
Article
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In the Mesoproterozoic, there was an epic transition on Earth, the final breakup of the Columbia supercontinent. Understanding the dynamic mechanism responsible for the final breakup of Columbia supercontinent is crucial for establishing Earth’s evolution that includes geology, environment and life. However, there is little research on what drove t...
Article
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The research is associated with characteristic analysis of the reflected waves through visco-elastic medium. The medium selected is having nanostructure with semiconductor properties. To study the behavior of thermal waves we adopted the refined multi-phase lag theory with fractional order time derivative. We computed the dispersion relation for sp...
Article
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Urban ground collapse (UGC) is becoming more common in China, resulting in significant socioeconomic losses and even personal casualties. The frequency of UGC accidents is highest in the east coastal area owing to developed urbanization, while it is lowest in the northeast area because of its smallest land area. Natural causes (such as geological c...
Article
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The central area of Chile’s Valparaiso Region has been classified as a seismic gap for a major earthquake, which makes it very important to understand the seismic hazard of the zone. Generally, seismic codes consider a qualitative classification of sites to estimate the possible damage in the case of an earthquake scenario. Estimating the values of...
Article
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Geomorphological mapping became one of the important aspects of landforms depiction, which has been developed from classical field-based to remotely sensed-based observations with or without ground-truthing over the last few decades. The availability of such data is essential for land-use planning as well as for decision-makers. To that end, we hav...
Book
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Guidebook to the Paleozoic Geology of the Eastern Upper Peninsula
Article
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The importance of landfill site selection has grown rapidly in recent years. New and various analytical techniques have been developed due to previous researches. Along with breakthroughs in information systems technology, computer-assisted work designs, and analytical techniques have come to the forefront. The aim of this study is to identify the...
Article
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A blanket of sedimentary and regolith material covers approximately three-quarters of the Australian continent, obscuring the crustal geology below and potential mineral resources within. Sedimentary basins also trap seismic energy increasing seismic hazard and generating noisy seismograms that make determining deeper crustal and lithospheric struc...
Article
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The Rakhine Basin in the northeastern Bay of Bengal is an active field in hydrocarbon exploration and development. It contains fault structures and steeply sloping stratigraphic reservoirs, both primary features of interest for hydrocarbon exploration that needs to be accurately imaged to improve the interpretation of seismic data and facilitate th...
Article
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Landslides are a massive natural and man-made calamity that destroys natural capital and human assets all over the world. Landslides brought on by steep slopes and mountainous terrain commonly occur in Maharashtra's Western Ghats. For this study, the area surrounding the previously occurring landslide at Mahabaleshwar in Maharashtra was considered....
Article
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We describe the recent development of active fault investigations conducted by CGS (the Central Geological Survey), focusing on the three main aspects summarized as follows. First, the active fault map of Taiwan has been reviewed and revised to incorporate a total of 36 active faults. Secondly, a stripe map of active faults on a scale of 1/25,000 h...
Article
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Eastern Indonesia, including the island of Halmahera, is a region with a high mineral potential, particularly Ni-Co, Au-Cu, and Ag ores, which are a globally important and critical source of raw materials (CRMs). The research was conducted within the framework of scientific cooperation between the Faculty of Geology, University of Warsaw (Poland),...
Conference Paper
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Background/Objectives. This paper outlines the first Electrical Resistance Heating (ERH) project carried out in Germany, at a site impacted by Chlorinated Hydrocarbons (CHCs) in relatively low permeability geology. The site is an active airport where maintenance and compass calibration of aircraft is performed within a distance of circa 150m from t...
Conference Paper
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Los túneles de London Crossrail para la futura London Rail Elizabeth Line fueron excavados por dos tuneladoras y conectados a intervalos regulares por galerías, construidos con métodos tradicionales y frente abierto. Esta comunicación describe la evolución del modelo geológico y de la estrategia de drenaje o despresurización para la galería CP-6. E...
Preprint
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NASA's Double Asteroid Redirection Test (DART) mission will kinetically impact Dimorphos, the secondary component of the Didymos binary asteroid system, which will excite Dimorphos's dynamical state and lead to significant libration about the synchronous state and possibly chaotic non-principal axis rotation. Although this particular outcome is hum...
Article
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Hyperspectral imaging is an innovative technology for non-invasive mapping, with increasing applications in many sectors. As with any novel technology, robust processing workflows are required to ensure a wide use. We present an open-source hypercloud dataset capturing the complex but spectacularly well exposed geology from the Black Angel Mountain...
Article
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Para evaluar la percepción social de los paisajes de Hidalgo, se desarrolló un cuestionario electrónico que se aplicó en dos instituciones de enseñanza media superior del Geoparque ‘Comarca Minera’. El tamaño de la muestra fue de 197 individuos (116 corresponden a una escuela rural y 81 a una urbana). El sitio preferido por su paisaje es el geositi...
Article
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The emerging broad science of geodiversity defined in terms of geomorphological diversity assesses geomorphological features of territory by comparing them in an extrinsic and intrinsic way. This paper uses SRTM (Shuttle Radar Topographic Mission) data and GIS (Geographical Information System) techniques to assess the geomorphological diversity of...
Article
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La Revista de la Asociación Geológica Argentina es una fuente de consulta obligatoria para comprender la geología de nuestro país. Muchos trabajos de trascendencia han sido publicados en la revista desde su creación en 1945. Su propósito original era difundir la labor científica de los miembros de la asociación, pero rápidamente la revista pasó a c...
Article
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Underground hard coal mining usually disrupts the mechanical equilibrium of rock sequences, creating fractures within minor permeable rocks. The present study employs a dual-continuum model to assess how both fractured and porous sandstone media influence the percolation process in postmining setups. To test the approach, the software TOUGH2 was em...
Article
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The present study has attempted to address the issue of sensitivity of different clusters of factors towards gully erosion in the Mayurakshi river basin. Firstly, the gully erosion susceptibility of the basin area has been mapped by integrating using 18 parameters divided into four factor-cluster, viz. erodibility, erosivity, resistance, and topogr...
Article
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Zona transisi Formasi Wonosari dan Nglanggran pada Kecamatan Purwosari memiliki karakteristik berupa tanah tebal, lereng curam, dan tidak terdapat singkapan batuan. Karakteristik yang berbeda diketemukan pada Zona Formasi Wonosari memiliki penciri bentukan karst polygonal dengan tanah tipis dan berbatuan gamping, serta Formasi Nglanggran berupa tan...
Article
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Land suitability assessment is one of the important researches in agricultural practices. The main aim of the present study is to assess the crop land suitability for cultivation in Mannargudi block, Tamil Nadu, India using remote sensing and GIS applications. The land suitability parameters such as slope, land use / land cover, soil, geology, aspe...
Article
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Rock forming blue quartz occurrences are reported on all continents, but little is known about the specific causes for the coloration, and even less about its geological significance. The present study investigates the occurrence hosted by the metarhyolites of the Rio dos Remédios Group in order to determine the potential causes of the blue colorat...
Article
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Foundation piles are a widely used foundation form for high-rise buildings. Its main function is to reduce the settlement of buildings. In recent years, in areas with good upper soil conditions, in order to reduce the amount of earthwork excavation and transportation, more and more engineering buildings use foundation piles. Therefore, the status o...
Book
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Con Prólogo del ingeniero de presas Manuel G. de Membrillera Ortuño (“Chairman” del Comité Técnico de Vigilancia y Auscultación de Presas de ICOLD), presentamos en Amazon un nuevo registro de las 24 grandes presas que se encuentran en explotación en La Gomera. 24 grandes presas contruidas en su abrupta geografía de 369 Km² de difícil geología. La o...
Article
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Batuan granitoid di Provinsi Lampung dapat ditemukan di peta geologi regional lembar Kota Agung dan Lembar Tanjungkarang. Masih sedikitnya penelitian tentang batuan granitoid Formasi Granit Kapur di Lampung mendasari penelitian ini. Tujuan penelitian adalah untuk mengidentifikasi jenis batuan granitoid dan melihat komposisi mineral batuan granitoid...
Article
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Este texto apresenta um panorama e as linhas-mestras da evolução das ciências geológicas no Brasil pós-Independência. Tal conjunto de conhecimentos foi implantado no país nas últimas décadas do século XVIII, associado à mineração e ao movimento ilustrado em Portugal. As atividades mineiras seguiram até a atualidade, variando a intensidade de explor...
Technical Report
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Book Review: Historia de la Vida a Mallorca - Apunts de Geologia i Paleontologia, del Doctor Bernat Morey Colomar (Edicions Documenta Balear, 2022, 237 pàgines) -un resum divulgatiu dels estudis científics dels darrers 200 anys sobre la història geològica de Mallorca.
Preprint
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Exploration of Venus in the 1970–1990’s revealed that the geology of Venus, the most Earth-like of the terrestrial planets, was decidedly un-Earth-like, with no plate tectonics, and no record of the first 80% of its history. A major outstanding question is whether Venus is still volcanically active today. We find that regions of Ganis Chasma have l...
Article
Full-text available
The recent remarkable increase in induced seismicity in Western Canada has been largely attributed to hydraulic fracturing in unconventional reservoirs. The nucleation of large magnitude events has been demonstrated to be closely linked to site-specific geological and operational factors. A mitigation strategy of fracturing-induced seismicity conce...
Preprint
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Successful fertilization treatments targeted to improve stand productivity while reducing operational complexities and cost depend on a clear understanding of soil nutrient availability under varying environmental conditions. Soil nutrient data collected from 154 forest sites throughout the Inland Northwest, USA were analyzed to examine soil nutrie...
Article
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Daerah Kuningan dan sekitarnya berada pada bagian zona lajur struktur Pamanukan-Cilacap yang memiliki bentang dan wisata alam indah, termasuk di dalamnya pemandian air panas Sangkanhurip. Dalam upaya pengembangan potensi alam tersebut diperlukan penyelidikan terintegrasi untuk mengetahui potensi kebencanaan dan sumberdaya yang terkandung di dalamny...
Article
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Besides biotechnology, nano-CT, the ideal technology, can also be used to observe three-dimensional nanostructures in intact cells as part of research into the characteristics of tight oil characteristics. There are few applications in the process and it is still in the early stage of development, but the advantages shown by 3D nanostructure techno...
Article
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Recent field and modeling studies have shown that barrier island resiliency is sensitive to sediment fluxes from the shoreface, making it important to evaluate how shoreface sediment availability varies in coastal systems. To do this, we assessed shoreface geology and morphology along the Rockaway Peninsula, NY, USA. We find that spatial variabilit...
Article
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Le canyon de Cassidaigne, localisé au large de Cassis, est l'un des plus profond de la Méditerranée nord-occidentale. Il est célèbre aussi bien par les études scientifiques et technologiques qui lui ont été consacrées que par les polé-miques environnementales qu'il a suscitées, relatives au rejet des « boues rouges » de l'usine d'alumine de Gardann...
Thesis
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Al noreste de Colombia, a 160 km de la capital del país, se encuentra la región del Alto Ricaurte, y en ella, los municipios de Sáchica, Santa Sofía, Sutamarchán y Villa de Leyva. Este territorio, cuna del patrimonio arqueológico, histórico-arquitectónico, cultural, natural y geológico de Colombia, posee todos los ingredientes necesarios para conve...
Article
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Adequate management and conservation of instream thermal habitats requires an understanding of the control that different landscape features exert on water temperatures. Previous studies have extensively explored the influence of spatial scale on these relationships. However, the effect of temporal scale remains poorly understood. Here, we use pair...