Results 91 to 100 of about 34,992 (234)

Toward an automatic full-wave inversion: Synthetic study cases [PDF]

, 2016
Full-waveform inversion (FWI) in seismic scenarios continues to be a complex procedure for subsurface imaging that might require extensive human interaction in terms of model setup, constraints, and data preconditioning.
Cela, Jose M., de la Puente, Josep, Ferrer, Miguel, Gutiérrez, Natalia, Hanzich, Mauricio, Kormann, Jean, Rodriguez, Juan E., Rojas, Otilio   +7 more
core   +2 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Geophysical and geochemical constraints on geoneutrino fluxes from Earth's mantle [PDF]

, 2012
Knowledge of the amount and distribution of radiogenic heating in the mantle is crucial for understanding the dynamics of the Earth, including its thermal evolution, the style and planform of mantle convection, and the energetics of the core.
Allègre, Araki, Arevalo, Arevalo, Bassin, Bellini, Boyet, Campbell, Davies, Dye, Dye, Dziewonski, Edwin S. Kite, Enomoto, Fiorentini, Fiorentini, Fitoussi, Gando, Hart, Hofmann, Jaupart, Javoy, Javoy, Krauss, Mantovani, McDonough, McDonough, Murakami, O'Neill, Ondřej Šrámek, Palme, Ritsema, Rudnick, Salters, Shijie Zhong, Stephen T. Dye, Su, Turcotte, Vedran Lekić, Wang, Warren, Wasson, Wen, William F. McDonough, Workman, Wurm, Zhang   +46 more
core   +2 more sources

Holocene climate oscillations, seismotectonic events and human–environmental interactions reconstructed from the Giannades palaeolake on Corfu (Eastern Mediterranean, Greece)

Journal of Quaternary Science, EarlyView.
ABSTRACT The Mediterranean is particularly sensitive to rapid climate changes (RCCs) during the Holocene. An increasing number of natural climate archives revealed that socio‐economic developments were influenced by such RCCs since the Palaeolithic. However, multi‐millennial and high‐resolution archives are still rare and often located in mountainous ...
Esra Reichert, Peter Fischer, Bernd Zolitschka, Tina Georg, Lea Obrocki, Denis Scholz, Katja Sporn, Andreas Vött   +7 more
wiley   +1 more source

Zones Localization of Hazardous Geological Processes Habit of the Coastal Cliff According to 3D Seismotomography Sounding Data

Russian Journal of Earth Sciences
The article presents a methodology for conducting 3D seismic tomography of rock massifs. This technique has been developed for the identification and localisation of zones of development of dangerous geological processes formed within the rock massif of ...
Glazunov Vladimir Vasil'evich, Efimova Natal’ia, Zelikman Danil, Bukatov Andrei   +3 more
doaj   +1 more source

Uncertainty based multi-step seismic analysis for near-surface imaging

Open Geosciences, 2019
Near-surface seismic surveys are often designed for surface wave and seismic tomographic analysis. In recent years, seismic imaging methods have been more frequently used at this scale.
Marciniak Artur, Stan-Kłeczek Iwona, Idziak Adam, Majdański Mariusz   +3 more
doaj   +1 more source

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

Laser &Photonics Reviews, EarlyView.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi, Irene Barbeito Edreira, Meng Ding, Zitong Feng, Win Indra, Francesco Poletti, Giuseppe Marra, Radan Slavík   +7 more
wiley   +1 more source

Evaluation of engineering properties of soil for sustainable urban development

Open Geosciences
Rapid urbanization in southern Saudi Arabia necessitates accurate geotechnical assessments to support sustainable development. However, the region lacks comprehensive seismic-based soil classification studies, raising concerns regarding construction ...
Qaysi Saleh, Al-Shmrani Awad, Abdelrahman Kamal   +2 more
doaj   +1 more source

Negative Stiffness Induced and Controlled by Constriction

physica status solidi (b), EarlyView.
Structures with negative stiffness can be stabilized by constriction of external displacement. Furthermore, constriction can make a conventional positive stiffness material exhibit negative stiffness, either bidirectional or unidirectional (shown in the figure).
Elena Pasternak, Arcady V. Dyskin
wiley   +1 more source

Multidisciplinary Approach to a Recovery Plan of Historical Buildings

International Journal of Geophysics, 2011
The paper emphasizes the advantages of employing multiple data techniques—geology, GPS, surveys of cracking, boreholes, seismic refraction and electrical resistivity tomography—to image the shallow stratigraphy and hypothesize the cause of ...
Luciana Orlando
doaj   +1 more source