RSS 1.0Geology (Theses and Dissertations)
Recent Submissions
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Tephrostratigraphy, magmatic histories and volcanic-climate linkages using high-resolution records in southern Italy.
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2025)The relationship between volcanic activity and climate change has long been a subject of scientific inquiry, though it remains a relatively underexplored aspect of Earth, particularly the influence of climate over volcanism. ... -
Sedimentary and foliar mercury sequestrations in contemporary and palaeo-environments, and the establishment of a new leaf-based atmospheric mercury proxy
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2025)Gaseous emissions from Phanerozoic large igneous province (LIP) emplacements have been implicated as instigators of global carbon cycle perturbations and associated global change and mass extinction events. However, ... -
The Mesozoic Ridges of the Southern Porcupine Basin
(Trinity College (Dublin, Ireland). Department of Geology, 2014)This dissertation presents a review of the geology and geophysics of the principal intra basinal ridges of the southern Porcupine Basin, offshore south-western Ireland. These ridges, namely the Porcupine Median Volcanic ... -
Mechanisms, kinetics and pathways in the early-stage crystallisation of Ca-REE-F-bearing carbonates under ambient and hydrothermal conditions
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2025)The aim of this study is to investigate the reaction pathways, mechanisms, kinetics, and energetics of the REE-CaF2-CaCO3 system crystallization reactions. It also seeks to understand the role of different REEs in the ... -
Upper mantle structure, intraplate volcanism and the unique anisotropy of the Antarctic Plate from waveform tomography
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2025)Antarctica’s unique geological setting makes it an important location for understanding the Earth’s crust and upper mantle, and its connections to the past and future evolution of the Earth. The Antarctic continent has ... -
Modelling the thermal history of onshore Ireland, Britain and its offshore basins using low-temperature thermochronology
(Trinity College (Dublin, Ireland). Department of Geology, 2017)The main goal of this PhD thesis is to investigate the early Cenozoic exhumation history of Ireland and Britain. The causal mechanism for early Cenozoic exhumation on this sector of the NW European margin remains contentious, ... -
Applications of the LA-ICP-MS image mapping approach to U-Pb carbonate dating : from far-field tectonism to pedogenic nodules
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)Carbonates are one of the most common mineral phases in the upper crust, and form in many geological environments (e.g. biotic and abiotic carbonate precipitation, fracture fills in tectonic veins and ore deposits). This ... -
Seismic Tomography of South America: Continental Lithosphere, Subduction-Zone Structures, and the Origins of Intraplate Magmatism
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)The lithospheric structure of South America records its long and complex tectonic evolution, during which it has influenced the distribution and composition of local magmatism, the geometry of the subduction at its western ... -
Common Era sea-level change in the North Atlantic
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)Relative sea-level (RSL) varies in time and space in response to a suite of different controlling mechanisms. The reliable reconstruction of RSL using foraminifera buried in high-saltmarsh sediments enable the development ... -
From synergy to inhibition: Effects of multi component solutions on the crystallization of divalent carbonates in natural and synthetic environments
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)The understanding of the processes governing the mechanisms, kinetics, and pathways of carbonate crystallization is crucial in the context of carbon capture and storage through mineralization. However, uncertainty still ... -
Cold-water corals from the deep-sea to the TV: development of shelf-edge mounds, assessment of anthropogenic stressors and geochemical parameters, and impacts of science communication
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)Cold-water corals (CWCs) are the hidden reef-builders of the deep ocean. They are out of sight, yet they perform important functions for marine ecosystems, play a role in stabilising climate change, and hold clues to study ... -
Origin and evolution of the Mesoarchean Aouéouat greenstone belt and associated gold mineralisation
(Trinity College (Dublin, Ireland). Department of Geology, 2016)This Aouéouat greenstone belt is situated in the Tasiast-Tijirit Terrane of the Reguibat Shield, part of the West African Craton. Petrographic, geochronological, geochemical and isotopic studies of the Aouéouat greenstone ... -
Advances in the detection of particulate matter and aerosols in peat: Exploring Icelandic volcanic activity and multi-source deposition in Ireland
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2024)This Ph.D. research project develops new techniques for the detection of particulate matter and aerosols in peat, a relatively underexplored atmospheric archive and carries out novel investigations of atmospheric deposition ... -
The zircon record of the Sudbury impact crater and its implications for the early Earth
(Trinity College (Dublin, Ireland). Department of Geology, 2016)In the absence of widespread rocks older than 4.0 Ga, the earliest terrestrial material and the only direct evidence for the nature of the Earth's very early crust are tiny zircon crystals. The chemical compositions of ... -
Interaction of Ca-Mg Carbonates with Rare Earth Element bearing Fluids under Ambient and Hydrothermal Conditions
This thesis aims to investigate the mechanisms of formation of hydroxylbastnäsite, a significant source of rare earth elements, in order to uncover the fundamental principles governing its crystallisation. The precise ... -
Structure and evolution of the upper mantle of the Australian Plate and North Atlantic Ocean from waveform tomography
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2023)With the expansion of regional and global seismic networks and the advancing of tomographic techniques, tomography models are able to reveal the heterogeneities in the Earth's interior with an increasing amount of detail. ... -
The basement geology of the Porcupine High - a key transatlantic link between the Caledonides and Appalachians
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2023)In order to better reconstruct the basement geology of the western Irish offshore and the North Atlantic, constraining the geologic evolution of the Porcupine High region is key. Located 200 km west of Ireland, the Porcupine ... -
Cobalt of the Tyrone Igneous Complex: geochemistry of mafic hosted sulphides and remobilisation
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2023)Primary sulphide mineralisation in mafic rocks and secondary remobilised sulphides contain significant cobalt and relate to early Palaeozoic ocean closure and arc-continent collision in the Irish Caledonian terrane. This ... -
The Akcal Epithermal Deposit: An Example of Low-Sulfidation Gold Mineralization in Western Turkey
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2023)The Akcal epithermal Au-Ag deposit is located on the Biga Peninsula, southwestern Turkey and is estimated to contain 32.5 million tonnes of mineralization at an average grade of 1.03 g/t Au, equivalent to 33.5 tonnes of ... -
The carboniferous geology of the Carrick-on-Suir syncline, Southern Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 1980)A geological map of the Carrick-on-Suir Syncline is presented at a scale of 1:31680 (2 inches to one mile). The thirteen mapping units proposed are discussed in detail; all but the lowermost are Carboniferous in age. The ...
