Browsing Geology (Theses and Dissertations) by Date of Publication
Now showing items 1-20 of 121
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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 ... -
Investigation of the stratigrphy, maturation and source-rock potential of Carboniferous black shales in the Dublin Basin
(Trinity College (Dublin, Ireland). Department of Geology, 2000)The Viséan part of the Dublin Basin stratigraphic succession is dominated turbiditic calcarenites interbedded with grey/black shales. Sedimentological analysis of four exploration wells drilled in the north part of the ... -
A study of some Irish Lower Carboniferous fish microvertebrates
(Trinity College (Dublin, Ireland). Department of Geology, 2000)Fish microvertebrates (often referred to as ichthyoliths) are a common, but largely unrecorded, component of the faunas of the Irish Lower Carboniferous. Material from four study areas within the Dinantian (Carboniferous) ... -
Sedimentology and stratigraphy of the Carboniferous Donegal Basin
(Trinity College (Dublin, Ireland). Department of Geology, 2000)The Dinantian onshore Donegal Basin is situated at the northerly exposed margin of the Northwest Carboniferous Basin of Ireland. Subsidence patterns in the Northwest basin were strongly controlled by an existing template ... -
Aspects of the palaeoecology and palaeoenvironmental setting of Waulsortian carbonate buildups in Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2000)The aim of this project has been to elucidate further aspects of the palaeoecology and palaeoenvironmental setting of the Waulsortian facies which developed in Ireland during the late Dinantian. Various techniques have ... -
Iron oxide and associated base metal mineralisation in the Central Midlands Basin, Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2000)This study describes and characterises the iron oxide mineralisation (hematite, magnetite, silica) associated with base metal mineralisation in the Irish Central Midlands Basin. The iron oxide mineralisation occurs over a ... -
Mesozoic-Tertiary tectonics of SE Ireland and genetic link to offshore extensional basins
(Trinity College (Dublin, Ireland). Department of Geology, 2001)This work shows that Mesozoic-Tertiary tectonics in Central-East and SE Ireland is more significant than previously recognised. A review of the existing geological and geophysical literature and structural mapping around ... -
Biometric revision of the genus Stenophragmidium Bassler, 1952 (Trepostomata, Bryozoa) from the Upper Palaeozoic
(Trinity College (Dublin, Ireland). Department of Geology, 2001)This study comprises a complete systematic revision of the trepostome genus Stenophragmidium Bassler, 1952 (Trepostomata, Bryozoa) from the Upper Palaeozoic, that incorporates stratigraphical, palaeogeographical, ... -
The use of dissociated crinoid ossicles as biostratigraphical and palaeoecological tools in the Carboniferous of northwest Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2001)Fossil crinoids were investigated from the Lower Carboniferous (Visean) rocks of northwest Ireland. In this area the deltaic Mullaghmore Sandstone Formation stratigraphically separates the Bundoran Shale Formation (Arundian) ... -
Phosphorus in Irish aquifers : implications for input to surface waters
(Trinity College (Dublin, Ireland). Department of Geology, 2002)This project examines phosphorus levels in a range of Irish hydrogeological situations, both to fill this gap in basic scientific knowledge, and to determine the circumstances in which concentrations likely to trigger ... -
Thermal modelling of planetesimals heated by 26 A1 : implications for chondrule formation
(Trinity College (Dublin, Ireland). Department of Geology, 2002)Chondrules are enigmatic components of chondritic meteorites. After decades of research a consensus as to how chondrules formed has not been found. In general it has been assumed that chondrules formed in the solar nebula ... -
Provenance and flux of late quaternary sediment, Southeast Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2002)The major sediment routing systems of Southeastern Ireland in the vicinity of the Leinster Massif were examined and quantified. Samples were taken from four of the major river systems, the Avoca, Barrow, Liffey and Slaney ... -
The genesis of exceptionally thick shallow marine sequences exposed within the South Munster Basin of southern Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2002)The South Munster Basin (southern Ireland) is an E-W trending fossil rift system that was active during the Late Devonian and Early Carboniferous. Subsidence during this period was rapid and led, despite a high sediment ... -
Sedimentology, chemostratigraphy, and geochronology of the lower Huqf Supergroup, Oman
(Trinity College (Dublin, Ireland). Department of Geology, 2002)The lower part of the Huqf Supergroup, comprising the Abu Mahara Group and the Hadash and Masirah Bay Formations of the Nafun Group, forms the oldest deposits exposed in Oman. This thesis is based on field study of this ... -
Recognition of abnormal thermal histories of Jurassic source rocks from integrated analyses of vitrinite reflectance and organic matter colour / fluorescence
(Trinity College (Dublin, Ireland). Department of Geology, 2002)By investigating three sedimentary horizons through the aureole of a Tertiary dyke intruding a Middle Jurassic sedimentary section in NE Skye, the thermal response rates of the various organic maturity indicators to ... -
Cenozoic flexural uplift in northwestern Ireland and sedimentation in the northeastern Irish Rockall Basin
(Trinity College (Dublin, Ireland). Department of Geology, 2002)This study brings together for the first time in northwestern Ireland the onshore and offshore evolution of a passive margin during North Atlantic rifting and tries to contribute to a better understanding of the relationship ... -
Phosphorus exports from agricultural grassland in overland flow and subsurface drainage water
(Trinity College (Dublin, Ireland). Department of Geology, 2003)On the background of increasing phosphorus (P) concentrations in Irish rivers and lakes, this project set out to investigate several aspects of the potential of agricultural grassland to lose P to water. All study sites ... -
Sedimentology analysis and correlation of the Mullaghmore sandstone formation in the north and north-west of Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2003)The aims of this study were to provide a sedimentological analysis and environmental interpretation for the Mullaghmore Sandstone Formation and its equivalents, extending from south Donegal to south Sligo and into the north ... -
A study of the effects of thin dyke intrusions on mudrock
(Trinity College (Dublin, Ireland). Department of Geology, 2003)The aim of this work is to examine the thermal response of mudrock to the short lived heating event induced by dyke intrusion. The work examines five Carboniferous mudrock horizons, intruded by Tertiary olivine tholeiitic ... -
The sedimentology and stratigraphy of the Early Triassic Sherwood Sandstone Group in the East Irish Sea and Cheshire Basins of NW England
(Trinity College (Dublin, Ireland). Department of Geology, 2004)The existing stratigraphic nomenclature applied to the Early Triassic Sherwood Sandstone Group in NW England has resulted from more than 150 years of geological investigation but is characterised by a stratigraphic system ...