Search Results - "Hartwig, Marcos"

Detection and Monitoring of Surface Motions in Active Open Pit Iron Mine in the Amazon Region, Using Persistent Scatterer Interferometry with TerraSAR-X Satellite Data by Hartwig, Marcos, Paradella, Waldir, Mura, José

“…Persistent Scatterer interferometry (PSI) represents a powerful tool for the detection and monitoring of tiny surface deformations in vast areas, allowing a…”
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Integration of multisources data for quarry slope stability assessment in the Itaoca district (Southeastern Brazil) by Hartwig, Marcos Eduardo, Moreira, CÉsar Augusto

“…Usually, stability conditions of excavation slopes are evaluated by means of kinematic analysis and geomechanical classification systems. However, field…”
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Spatiotemporal analysis of gullies and environmental controlling factors in the municipality of Alegre (state of Espírito Santo, southeastern Brazil) by Marcos Eduardo Hartwig, João Pedro Inacio Alves

“…Water erosion of soil slopes causes several environmental, economic, and social losses worldwide every year, particularly, when it reaches more advanced…”
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Groundwater identification using geophysical tools and its implications for the stability of slopes in an open pit mine by Guzzo Duz, Beatriz, Moreira, César Augusto, Hartwig, Marcos Eduardo, Queiroz Miano, Felipe, Araújo, Ana Flávia

“…The open pit mining development begins with the opening of pits with the rock mass excavation and formation of slopes and berms for ore exploration. Knowledge…”
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Motion maps derived from optical satellite images: the case study of the East Anatolian Fault (Türkiye) by Hartwig, Marcos Eduardo, Bottacin, Cícero Dias, Grohmann, Carlos Henrique

“…Abstract On February 6, 2023, two earthquakes shook the southern and central Türkiye causing significant loss of human life and devastating many cities. These…”
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A new computational tool for the follow up of mechanized excavation of tunnels: the case study of the subway line 5-LILAC in São Paulo, Brazil by Hartwig, Marcos Eduardo, Moreira, Cesar Augusto

“…Abstract The management and monitoring of mechanized tunnel excavation parameters are crucial for ensuring the safety, quality and project's time/costs, since…”
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Structure and tectonic significance of high- and low-temperature deformation along the lateral escape-related Guaçuí and Batatal shear zones, southern Araçuaí Orogen (southeastern Brazil) by Hartwig, Marcos Eduardo, Melo, Marilane Gonzaga de, Moreira, César Augusto

“…Abstract The Guacuí and Batatal lineaments in the southern region of the state of Espírito Santo (southeastern Brazil) can be traced from satellite images for…”
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Geophysical and structural survey in copper occurrence located in the northern region of the Camaquã basin (RS) by Moreira, César Augusto, Carneiro, Henrique Pelorca, Casagrande, Matheus Felipe Stanfoca, Hartwig, Marcos Eduardo, Hansen, Marco Antonio Fontoura

“…Abstract The geophysical diagnosis of mineral deposits can be extremely useful in detailing mineralized zones and is a strategy for direct sampling by probing…”
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Técnica A-DInSAR aplicada aos deslocamentos superficiais do setor GW da mina de Brucutu – Quadrilátero Ferrífero by Gabrieli Santos Boulhosa, Marcos Eduardo Hartwig, Adam Barros Fernandes

“…A mina de Brucutu encontra-se na porção nordeste do Quadrilátero Ferrífero, no município de São Gonçalo do Rio Abaixo, a aproximadamente 120 km a leste de Belo…”
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Processos erosivos e dinâmica de duas voçorocas desenvolvidas em solo residual em uma encosta íngreme (Estado do Espírito Santo, Brasil) by Alves, João Pedro Inacio, Hartwig, Marcos Eduardo, Espinoza, Juan Alfredo Ayala

“…Este estudo tem como objetivo compreender as causas e os processos que levaram a formação de duas voçorocas em uma encosta localizada no município de Alegre,…”
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Rockfall danger and risk analysis around a granite inselberg in the Vila Velha city (southeastern Brazil) by Hartwig, Marcos Eduardo, Zuquette, Lázaro Valentin

“…Rockfall is a natural process of mountain slope evolution that can endanger human settlements adjacent to rock cliffs. The Morro do Moreno Hill is a granite…”
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Detection of mine slope motions in Brazil as revealed by satellite radar interferograms by Hartwig, Marcos Eduardo

“…Differential synthetic aperture radar interferometry (DInSAR) is a space-geodetic technique which allows minute surface displacements over vast areas to be…”
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Gully evolution assessment from structure-from-motion, southeastern Brazil by Hartwig, Marcos Eduardo, Ribeiro, Luma Pimentel

“…The aim of this study is to determine the morphology and geometry (erosion area and volume) of 30 gullies spread in the Alegre municipality (Espírito Santo…”
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Enhanced discontinuity mapping of rock slopes exhibiting distinct structural frameworks using digital photogrammetry and UAV imagery by Hartwig, Marcos Eduardo, Santos, Garion Guidotti de Souza dos

“…The Structure-from-Motion-Multi-View Stereo (SfM-MVS) techniques with high-resolution photographs acquired with unmanned aerial vehicles (UAVs), were applied…”
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EPB excavation in transitional mixed face: Line 5—Lilac (São Paulo Metro, Brazil) by Filho, Luís Cesar Esteves Flamínio, Hartwig, Marcos Eduardo, Moreira, Cesar Augusto

“…The use of Earth Pressure Balance (EPB) shields is still very modest for tunneling in urban areas in Brazil. This study analyzed and integrated geological data…”
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The significance of geological structures on the subsidence phenomenon at the Maceió salt dissolution field (Brazil) by Hartwig, Marcos Eduardo, Gama, Fábio Furlan, da Silva, Jefferson Lins, Jofré, Gonzalo Corral, Mura, José Claudio

“…In the present study, we investigate the subsidence phenomenon affecting some neighborhoods located to the west of the city of Maceió, State of Alagoas…”
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Application of electrical resistivity tomography (ERT) in uranium mining earth dam by Moreira, César Augusto, Guireli Netto, Leonides, Camarero, Pedro Lemos, Bertuluci, Fernanda Barbosa, Hartwig, Marcos Eduardo, Domingos, Reinaldo

“…Abstract Dams are built to contain water or mining tailings and provide several benefits to society. The safety and stability of these structures are essential…”
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Deciphering the source of multiple U–Pb ages and complex Hf isotope composition in zircon from post-collisional charnockite-granite associations from the Araçuaí orogen (southeastern Brazil) by Melo, Marilane Gonzaga de, Lana, Cristiano, Stevens, Gary, Hartwig, Marcos Eduardo, Pimenta, Marcel Sarcinelli, Nalini, Hermínio Arias

“…Giant post-collisional magmatic systems are marked by an intricate diversity of zircon ages and Hf isotopic signatures. Granites and charnockites from such…”
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Multisource data integration for groundwater prospecting in Precambrian shear zones, Espírito Santo State (Southeastern Brazil) by Hartwig, Marcos Eduardo, Moreira, César Augusto, De Melo, Marilane Gonzaga

“…The Precambrian metamorphic rocks in the southern region of the Espírito Santo State(southeastern Brazil) is intercepted by ductile and brittle/ductile shear…”
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Geophysical and Structural Survey in the Diagnosis of Leaks at a Fuel Station in a Uranium Mine in Decommissioning Phase (Poços de Caldas, Brazil) by Moreira, César Augusto, Helene, Lívia Portes Innocenti, Hartwig, Marcos Eduardo, Lourenço, Rebeca, do Nascimento, Matheus Mistrinel Pacine Feitoza, Targa, Debora Andrade

“…Mining enterprises are, in essence, landscape modifiers and sources of long-term environmental degradation. The development of activities within the mines…”
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