Browsing Geology (Scholarly Publications) by Title
Now showing items 1-20 of 182
-
ACC and vaterite as metastable intermediates in the solution based crystallization of CaCO3
(Springer International Publishing, 2017)Amorphous calcium carbonate (ACC) and vaterite are not very common in abiotic systems, but they play a very significant role in biomineralization processes and are key in the global carbon cycle. Despite their importance, ... -
Acid Treatment effects on the stable isotopic signature of fossils
(2012)Prior to geochemical analyses, fossil bones and teeth are often extracted from any surrounding lithified sediments using chemical techniques such as immersion in acid. As stable isotope analysis becomes more commonplace ... -
Age of the oldest known Homo sapiens from eastern Africa
(2022)Efforts to date the oldest modern human fossils in eastern Africa, from Omo-Kibish and Herto in Ethiopia, have drawn on a variety of chronometric evidence, including 40Ar/39Ar ages of stratigraphically associated tuffs. ... -
Amorphous dysprosium carbonate: characterization, stability, and crystallization pathways
(2013)The crystallization of amorphous dysprosium carbonate (ADC) has been studied in air (21–750 °C) and in solution (21–250 °C). This poorly ordered precursor, Dy2(CO3)3·4H2O, was synthesized in solution at ambient temperature. ... -
An analysis of the spatio-temporal occurrence of anthelmintic veterinary drug residues in groundwater
(2021)Anthelmintics are antiparasitic drugs used to control helminthic parasites such as nematodes and trematodes in animals, particularly those exposed through pasture-based production systems. Even though anthelmintics have ... -
Apatite Chlorine Concentration Measurements by LA-ICP-MS
(2014)Apatite incorporates variable and significant amounts of halogens (mainly F and Cl) in its crystal structure, which can be used to determine the initial F and Cl concentrations of magmas. The amount of chlorine in the ... -
Application of airborne geophysical survey data in a logistic regression model to improve the predictive power of geogenic radon maps. A case study in Castleisland, county Kerry, Ireland
(2023)In this study, a novel methodology was investigated to improve the spatial resolution and predictive power of geogenic radon maps. The data inputs comprise indoor radon measurements and seven geogenic factors including ... -
Application of airborne radiometric surveys for large-scale geogenic radon potential classification
(2020)Background: Indoor radon represents an important health issue to the general population. Therefore, accurate radon risk maps help public authorities to prioritise areas where mitigation actions should be implemented. As ... -
Applying machine learning to model radon using topsoil geochemistry
(2023)Radon is classified as a Class 1 carcinogen, being the leading cause of lung cancer in non-smokers. Understanding the prominent sources of radon helps to mitigate against the adverse effects of radon exposure. Considering ... -
Arctic Bay Formation, Borden Basin, Nunavut (Canada): basin evolution, black shale, and dissolved metal systematics in the Mesoproterozoic ocean
(2012)The Arctic Bay Formation (Nunavut, Canada) represents a late Mesoproterozoic muddy terrigenous ramp and contains >200 m of black shale. The formation was studied in order to decipher the tectonostratigraphic and geochemical ... -
Assessment of natural radioactivity and radon release potential of Silurian black shales
(2024)Many countries are developing a radon action plan to provide decision-makers with a reliable tool for reducing the harmful effects of radon exposure in dwellings and among the general public and, accordingly, to implement ... -
Back to the future: Comparing Yeast as an outmoded artificial Tracer for simulating microbial transport in Karst aquifer systems to more modern approachs
(2024)Bacterial contamination of karst groundwater is a major concern for public health. Artificial tracing studies are crucial for establishing links between locations where pollutants can rapidly reach the aquifer systems ... -
Basic volcanism contemporaneous with the Sturtian glacial episode in NE Scotland
(2010)The Dalradian Supergroup contains three distinct glacigenic units, formerly termed `Boulder Beds?, which are correlated with widespread Neoproterozoic glaciations. The oldest and thickest unit, the Port Askaig Formation, ... -
Biomineralisation by earthworms - an investigation into the stability and distribution of amorphous calcium carbonate
(2015)BACKGROUND: Many biominerals form from amorphous calcium carbonate (ACC), but this phase is highly unstable when synthesised in its pure form inorganically. Several species of earthworm secrete calcium carbonate granules ...
