Results 151 to 160 of about 2,669 (274)

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

open access: yesNear Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball   +4 more
wiley   +1 more source

3D effects of seawater on electrical resistivity tomography near shorelines—Challenges and possible solutions inferred from synthetic and field data

open access: yesNear Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) is one of the most widely used geophysical techniques for hydrogeological questions, such as investigating the groundwater transition zone between land and sea. The interpretation of 2D coast‐parallel ERT profiles is challenging because most of the electrical current flows through the highly conductive ...
Simon Levin Fischer   +6 more
wiley   +1 more source

Estimating the critical angle of top near‐surface layers on the Moon

open access: yesNear Surface Geophysics, EarlyView.
Abstract Near‐surface characterization of the lunar subsurface is essential for future exploration and infrastructure development, particularly for the construction of underground habitats that provide protection against radiation and micrometeorites. However, conventional seismic approaches for estimating subsurface properties typically rely on prior ...
Nelson Ricardo Coelho Flores Zuniga   +1 more
wiley   +1 more source

Rock art from at least 67,800 years ago in Sulawesi. [PDF]

open access: yesNature
Oktaviana AA   +39 more
europepmc   +1 more source

Best Practices for Scientific Collaboration and Ethical Considerations When Working With Human Remains in Southeast Asia

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT The roles and responsibilities we occupy as scientists working directly with human remains are diverse, requiring careful ethical consideration. In Southeast Asian contexts, it has been important for us experts and scholars to be in constant correspondence and collaboration, deriving scientific insights into human health, life histories, and ...
Michael Rivera   +19 more
wiley   +1 more source

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

open access: yesArchaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather   +11 more
wiley   +1 more source

Lost and potentially found: the location of the “Temple of Hermes” at ancient Bubastis in the Nile Delta [PDF]

open access: yesEiszeitalter und Gegenwart
P. Garbe   +4 more
doaj   +1 more source

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