Results 91 to 100 of about 100,556 (325)
Preliminary Investigation of the Ground-Water Resources of Baxter, Fulton, Izard and Sharp Counties, Arkansas [PDF]
, 1980 One hundred and seventy-seven drillers\u27 well reports were used to investigate the groundwater resources of Baxter, Fulton, Izard, and Sharp counties. The most widely utilized aquifer zone is composed of the Cotter and Jefferson City dolomites.
Liebelt, Mike +2 more
core +2 more sources
Structural Concrete, EarlyView.Abstract Reinforced concrete (RC) beams can be subjected to torsion, and failure due to torsion is brittle and poses a significant risk to occupants. Moreover, strengthening of existing RC beams in torsion may be required due to the upgrade of the structures or as part of structural rehabilitation.
Ahmed Hamoda +4 more
wiley +1 more source
Stratabound arsenic and vein antimony mineralisation in Silurian greywackes at Glendinning, south Scotland [PDF]
, 1983 Stratiform and disseminated pyrite-arsenopyrite concentrations are overprinted by fracturecontrolled polymetallic mineralisation including stibnite through at least tens of metres of Silurian sediments at Glendinning, near Langholm.
Gallagher, M.J. +10 more
core
Evidence for an impact-induced biosphere from the δ34S signature of sulphides in the Rochechouart impact structure, France [PDF]
, 2017 The highly eroded 23 km diameter Rochechouart impact structure, France, has extensive evidence for post-impact hydrothermal alteration and sulphide mineralization.
Boyce, A.J. +4 more
core +1 more source
TAXON, EarlyView.Abstract This study investigates species boundaries in the lichen genus Arctomia (Arctomiaceae, Ascomycota) using an integrative approach combining molecular phylogenetics, full Bayesian population delimitation, heuristic and model‐based species delimitation, and supervised machine learning applied to morphological data.
Stefan Ekman +2 more
wiley +1 more source
Fossil biomass preserved as graphitic carbon in a late paleoproterozoic banded iron formation metamorphosed at more than 550°C [PDF]
, 2019 Metamorphism is thought to destroy microfossils, partly through devolatilization and graphitization of biogenic organic matter. However, the extent to which there is a loss of molecular, elemental and isotope signatures from biomass during high ...
De Gregorio, BT +9 more
core +2 more sources
Iowa Population Exposures to Metals and Metalloids in Well Water
Environmental Toxicology, EarlyView.ABSTRACT Previous Iowa studies suggest low levels and chronic arsenic exposures are associated with prostate cancer. The rural Iowa population heavily relies on private wells for drinking water resources and thus is vulnerable to contaminants such as heavy metals found in well water.
Donald L. Simmons +9 more
wiley +1 more source
Multivariate Statistical Analysis of Phyllite Samples Based on Chemical (XRF) and Mineralogical Data by XRD [PDF]
, 2012 It is presented the results obtained of a multivariate statistical analysis concerning the chemical and phase composition, as a characterization purpose, carried out with 52 rock phyllite samples selected from the provinces of Almería and Granada (SE ...
Garzón Garzón, Eduardo +2 more
core +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Primary metabolites in root exudates are essential for plant nutrition and rhizosphere microbiome function, potentially responding sensitively to climate warming. However, the effects of long‐term soil warming on exudate metabolites in forests remain unclear.
Xiaofei Liu +6 more
wiley +1 more source
Revista Mexicana de Ciencias Geológicas, 2018 The Lower Cretaceous Cupido Formation, a carbonate system developed in northeastern Mexico, like many ancient carbonate platforms contains numerous dolomite bodies.
Gabriela Sara Guzzy-Arredondo +5 more
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