Browsing Geology by Subject "Geochemistry"
Now showing items 1-11 of 11
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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 ... -
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 ... -
Determining the depths and timescales of pre-eruptive processes before the historical 1538 Monte Nuovo eruption (Campi Flegrei caldera, Italy)
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2022)Campi Flegrei, Italy is one of the most populated caldera volcanoes on Earth and a detailed understanding of its sub-volcanic magma system and pre-eruptive processes are essential for effective hazard mitigation. Of ... -
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 ... -
Inhibition of Calcite Growth: Combined Effects of Mg2+ and SO42–
(2016)Magnesium and sulfate are each known to affect calcite growth and dissolution, but little is known about their combined effects on calcite growth rates. We grew calcite using the constant composition approach at ambient ... -
Lake Ohrid?s tephrochronological dataset reveals 1.36?Ma of Mediterranean explosive volcanic activity
(2021)Tephrochronology relies on the availability of the stratigraphical, geochemical and geochronological datasets of volcanic deposits, three preconditions which are both often only fragmentary accessible. This study presents ... -
Petrology and dating of the Permian lamprophyres from the Malá Fatra Mts. (Western Carpathians, Slovakia)
(2018)Calc-alkaline lamprophyres are known from several localities in the Malá Fatra Mountains. They form dykes (0.5-3 m) of varying degree of alteration that have intruded the surrounding granitoid rocks which are often ... -
Rare earth elements in olivine:determination, occurrence and behaviour
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2018)Olivine is a widely occurring mineral that offers great potential for improving our understanding of geological processes. Olivine is present across a range of geologically significant settings, occurring in stony-iron ... -
Reaction pathways and textural aspects of the replacement of anhydrite by calcite at 25 °C
(2017)The replacement of sulfate minerals by calcium carbonate polymorphs (carbonation) has important implications in various geological processes occurring in Earth surface environments. In this paper we report the results of ... -
The trace element and U-Pb systematics of metamorphic apatite and its application in provenance studies
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2020)Apatite is a common accessory mineral in igneous, sedimentary and metamorphic rocks. It has potential as a provenance indicator in clastic sedimentary systems, as it can host a wide variety of trace elements in its crystal ...