Geology: Recent submissions
Now showing items 61-80 of 315
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Patterns and drivers of groundwater and stream nitrate concentrations in intensively managed agricultural catchments
(2022)The environmental loss of nitrogen in agricultural landscapes has pervasive consequences, including human health implications, eutrophication, loss of habitat biodiversity and greenhouse gas emissions. The efficacy of ... -
A users guide to radon priority areas: examples from Ireland.
(2022)Exposure to radon over time has significant detrimental effects on human health. Approximately 226,000 annual radon-related deaths have been reported from 66 countries (1). Many countries have a radon action plan, in order ... -
Constraints on the thermal conditions within the cratonic lithospheric mantle through time
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2022)The stabilization of Earth s first continents is inescapably linked to the formation of the ancient cratonic lithospheric mantle. The cratonic lithospheric mantle is widely considered to have formed as a residue of extreme ... -
Geochemical and mineralogical characterisation of the Caribou Zn-Pb VMS deposit, Bathurst Mining Camp, New Brunswick, Canada
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2022)The Caribou Volcanogenic Massive Sulphide (VMS) Zn-Pb deposit in the Appalachians of Eastern Canada is hosted by Middle Ordovician shale and felsic volcanic rocks and deposited in a back-arc environment. The entire mineralised ... -
SEM-EDX study of bentonite alteration under the influence of cement alkaline solutions.
(2021)Bentonite is a key barrier for the isolation of high-level radioactive waste within Deep Geological Repository. However, bentonite may be altered by contact with cementitious materials and their alkaline pore fluids. This ... -
The Jurassic Period
(Elsevier, 2020)Ammonites underwent an evolutionary diversification after the mass extinction of the end Triassic induced by the formation of a Large Igneous province (LIP), and this group provides the most useful marine biostratigraphy. ... -
An Early Jurassic (Sinemurian Toarcian) stratigraphic framework for the occurrence of Organic Matter Preservation Intervals (OMPIs)
(2021)Lower Jurassic sedimentary successions in the Atlantic margin basins include several organic-rich intervals, some with source rock potential; time-equivalent units are also identified in on- and offshore areas worldwide. ... -
New Constraints on Global Geochemical Cycling During Oceanic Anoxic Event 2 (Late Cretaceous) From a 6-Million-year Long Molybdenum-Isotope Record
(2021)Intervals of extreme warmth are predicted to drive a decrease in the oxygen content of the oceans. This prediction has been tested for the acme of short (<1 million years) episodes of significant marine anoxia in the ... -
Refinement of high-spatial resolution U-Pb geochronological methodologies
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)Zircon [ZrSiO4] is a naturally occurring mineral commonly used in geochronological, isotope and elemental geochemical studies. It can form as an accessory phase in a wide variety of magmatic and metamorphic conditions and ... -
A geo-thermochronological study offshore west of Ireland: the timing of exhumation and magmatic activity and the nature of the basement on the Irish Atlantic Margin
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)In recent years, the use of multiple low-temperature thermochronometers combined with inverse thermal history modelling of multiple samples on vertical profiles has been shown capable of detecting low magnitude exhumation ... -
Chemostratigraphic Investigation of Early Carboniferous Tuffs and Limestones from the Irish Midlands Based on Geochemical and Geochronological Fingerprinting
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)The timing of mineralisation of the Irish Zn-Pb ore field is currently poorly understood. It can be improved by more accurate stratigraphic correlations of the Carboniferous (Mississippian Subsystem) host rocks (Heckel ... -
Integrated simulation for improved mineral recovery processes
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)The consumption of mineral and metals is increasing as the population grows and the demand for mineral resources will remain high and evolve as society moves towards a carbon-neutral future. The increasing demand for metals, ... -
Fingerprinting and assessing the reactivity of past and future aggregates
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)The Irish construction boom of the early 2000s generated an unprecedented demand for sub floor rock aggregate. However, due to a lack of residential specific material standardisation, unacceptable documentation practices ... -
Development of a SEM-EDS method for quantifying free mica in building materials
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)The publication of Irish Standard IS 465:2018 highlighted the need for a technique to accurately and non-subjectively quantify free mica. The standard was developed to assist those who intend to provide assessment and ... -
Reaction Pathways toward the Formation of Bastnäsite: Replacement of Calcite by Rare Earth Carbonates
(2021)The interaction of rare earth bearing (La, Nd, Dy) aqueous solutions with calcite crystals at ambient and hydrothermal conditions (25–220 °C) results in the solvent-mediated surface precipitation and subsequent pseudomorphic ... -
Study of Natural Radioactivity Levels and Radon/Thoron Release Potential of Bedrock and Soil in Southeastern Ireland
(2021)Radon (222Rn) and thoron (220Rn) account for almost two-thirds of the annual average radiation dose received by the Irish population. A detailed study of natural radioactivity levels and radon and thoron exhalation rates ... -
Geochemistry & Stratigraphy of the Mesozoic & Cenozoic Sedimentary Rocks Encountered in the Mandawa Basin, South Eastern Tanzania
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)The Mandawa Basin in south eastern Tanzania has long been regarded as the most hydrocarbon-prospective onshore sedimentary basin in the country. However, despite containing the ingredients necessary for a working petroleum ... -
Investigating veterinary antiparasitic drugs as emerging contaminants in Irish groundwater
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)Due to increased intensification of the food production system, veterinary drugs have become a critical component in animal husbandry in Ireland and more broadly within the European Union. The administration of such ... -
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 ... -
Tracking halogen recycling and volatile loss in kimberlite magmatism from Greenland: Evidence from combined F-Cl-Br and δ37Cl systematics
(2021)Kimberlite magmatism occurs as a result of volatile fluxed melting of the convecting upper mantle underlying cratonic lithospheric mantle regions. During passage to the Earth's surface, proto-kimberlite magma can interact ...
