Results 151 to 160 of about 3,204,513 (373)

Uncovering Archaeological Treasures at Saruq al‐Hadid, UAE: Insights From Ground Penetrating Radar and Magnetic Data

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Saruq al‐Hadid, located at the edge of the Rub Al‐Khali desert near Dubai's southern border with Abu Dhabi, is among the region's richest archaeological sites. Renowned for its historical role in metallurgy, trade and human habitation, the site was occupied from the Umm an‐Nar period through the post–Iron Age. Despite its significance, much of
Moamen Ali   +9 more
wiley   +1 more source

Strain accommodation beneath structures on Mars [PDF]

open access: yes
A recent review of tectonic features on Mars shows that most of their subsurface structures can be confidently extended only a few kilometers deep (exceptions are rifts, in which bounding normal faults penetrate the entire brittle lithosphere, with ...
Banerdt, W. B.   +2 more
core   +1 more source

Geophysical Investigations at the Artemision at Amarynthos of Euboea (Greece)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT A combination of resistivity mapping and three‐dimensional electrical resistivity tomography (ERT) was used to investigate the subsurface of the sanctuary of Artemis Amarysia in Amarynthos, Euboea (Greece), an area where archaeological remains from the Bronze Age to the post‐Byzantine period are preserved.
G. N. Tsokas   +5 more
wiley   +1 more source

Reactivation of Deep Subsurface Microbial Community in Response to Methane or Methanol Amendment

open access: yesFrontiers in Microbiology, 2017
Microbial communities in deep subsurface environments comprise a large portion of Earth’s biomass, but the microbial activity in these habitats is largely unknown. Here, we studied how microorganisms from two isolated groundwater fractures at 180 and 500
P. Rajala, M. Bomberg
semanticscholar   +1 more source

Diversity among bacteria isolated from the deep subsurface [PDF]

open access: bronze, 1996
I. V. Zlatkin   +3 more
openalex   +1 more source

Survey and Sequence Strategies for Full‐3D Electrical Resistivity Tomography in Archaeological Sites: A Case Study on a Domus of the Roman Town of Augusta Bagiennorum (NW Italy)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Preliminary geophysical investigations are a cost‐effective and efficient way to screen archaeological sites and locate buried structures. Ground‐penetrating radar (GPR) is one of the most widely used methods for archaeological prospection, but in some sites, it cannot be employed effectively due to the presence of clay or other electrically ...
Andrea Vergnano   +5 more
wiley   +1 more source

Active microbial biofilms in deep poor porous continental subsurface rocks

open access: yesScientific Reports, 2018
Deep continental subsurface is defined as oligotrophic environments where microorganisms present a very low metabolic rate. To date, due to the energetic cost of production and maintenance of biofilms, their existence has not been considered in poor ...
Cristina Escudero   +3 more
doaj   +1 more source

Deep soil inventories reveal that impacts of cover crops and compost on soil carbon sequestration differ in surface and subsurface soils

open access: yesGlobal Change Biology, 2019
Increasing soil organic carbon (SOC) via organic inputs is a key strategy for increasing long‐term soil C storage and improving the climate change mitigation and adaptation potential of agricultural systems.
Nicole E. Tautges   +5 more
semanticscholar   +1 more source

Physically Based Predictive Modelling of Archaeological Proxies Using Cropmarks

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Cropmarks, as archaeological proxies, offer a valuable means of detecting buried sites through remote sensing. Yet, the scalability of such methods across varied archaeological contexts remains underexplored, and AI‐based modelling approaches are still in early stages.
Elias Gravanis, Athos Agapiou
wiley   +1 more source

Influence of Photoexcitation Depth on Luminescence Spectra of Bulk GaAs Single Crystals and Defect Structure Characterization

open access: yes, 2011
The results of investigation of bulk GaAs photoluminescence are presented taken from near-surface layers of different thicknesses using for excitation the light with the wavelengths which are close but some greater than the excitonic absorption ...
Fedoseyev, V. G.   +4 more
core  

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