Geology: Recent submissions
Now showing items 241-260 of 315
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Fluid-rock interaction in the Tejeda Caldera, Gran Canaria, and the Las Canadas Caldera, Tenerife (Canary Islands)
(Trinity College (Dublin, Ireland). Department of Geology, 2010)This PhD thesis investigates the processes, products, and timing of fluid-rock interaction in the fossil hydrothermal systems of the Tejeda caldera, Gran Canaria and the Las Canadas caldera, Tenerife (Canary Islands), using ... -
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 ... -
Understanding leakage from a fault-sealed CO2 reservoir in east-central Utah: a natural analogue applicable to CO2 storage
(Trinity College (Dublin, Ireland). Department of Geology, 2006)This thesis investigates a natural CO2 reservoir to define the factors that can cause leakage and determine the rates and consequences of CO2 leakage on the surrounding environment. Situated at the northern end of the ... -
Evolution of the north east rift zone of Tenerife, Canary Islands : a multi-disiplinary approach
(Trinity College (Dublin, Ireland). Department of Geology, 2010)Tenerife Island, Canary archipelago, is at the centre of intense geological research and debate. The island is composed by three principal rift-zones that enclose major collapse structures. This study provides 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 ... -
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 ... -
Testing the utility of an organic geochemical approach to Holocene sea-level change in the Shannon estuary
(Trinity College (Dublin, Ireland). Department of Geology, 2013)This project tests a recently developed, geochemically-based technique for relative sea- level (RSL) reconstruction to assess its applicability in the Shannon region. The technique is underpinned by the identification of ... -
Exhumation in Irish sedimentary basins and implications for hydrocarbon exploration, offshore Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2006)Exhumation, the removal of overburden resulting from the vertical displacement of rocks from maximum burial depth, occurs at both regional and local scales in offshore sedimentary basins and has important implications for ... -
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, ... -
Crustal processes in volcanic systems : case studies from Northern Ireland, New Zealand, and Indonesia
(Trinity College (Dublin, Ireland). Department of Geology, 2008)It is evident that modification of primary melts from the mantle is significant in magma petrogenesis as primitive magmas are only rarely observed as erupted lavas at the Earth’s surface. Ascent and density filtering of ... -
Volcano flank terraces on Mars
(Trinity College (Dublin, Ireland). Department of Geology, 2010)Flank terraces are topographically subtle, laterally extensive structures on the flanks of several large shield volcanoes on Mars. The formation of terraces has been ascribed to several mechanisms, including elastic ... -
Deformation band fault core : character, evolution and influence on bulk fluid flow
(Trinity College (Dublin, Ireland). Department of Geology, 2006)Deformation band fault core has only recently been recognised as a distinct component of deformation band faults. Previously, deformation bands were divided into single deformation bands, zones of deformation bands and ... -
Estimating exhumation from seismic stacking velocity data : a case study from the Slyne Basin, offshore NW Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2012)Exhumation describes the vertical upward displacement of rocks due to the removal of overburden material. In this study, seismic velocity profiles from 2D and 3D seismic reflection datasets have been inverted to constrain ... -
Tertiary dykes in northwest Ireland: field occurrence, emplacement mechanisms, host rock deformation, and post-emplacement strain and denudation
(Trinity College (Dublin, Ireland). Department of Geology, 2006)This work provides insight into the Tertiary tectonic and stress history of northwest Ireland. It focuses on igneous dykes, as these are the only rocks of Tertiary age in the region. The work also looks at the fundamental ... -
Geophysical exploration for offshore evidence of relict shorelines on the northern coast of Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2014)The current generation of postglacial Relative Sea Level (RSL) change simulations in formerly glaciated margins display significant deviations from field evidence. This is particularly true in Ireland where the RSL history ... -
An experimental study of the geometry and kinematics of caldera collapse
(Trinity College (Dublin, Ireland). Department of Geology, 2008)Calderas are 1 - 100 km diameter, volcanic depressions that form primarily through m-scale to km–scale subsidence of a magma reservoir roof into an underlying magma reservoir. This study addresses several fundamental ... -
Consequences of giant landslides on ocean island magmatism: volcanic and geochemical evolution of the Teno massif, Tenerife, and El Hierro Island (Canary Archipelago)
(Trinity College (Dublin, Ireland). Department of Geology, 2009) -
An investigation of the palynology, stratigraphy and palaeogeography of carboniferous rocks in western Irish offshore basins
(Trinity College (Dublin, Ireland). Department of Geology, 2012)