Geology: Recent submissions
Now showing items 161-180 of 315
-
Nitrogen Attenuation along Delivery Pathways in Agricultural Catchments
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2018)Anthropogenic application of inorganic and organic nitrogen (N) to agricultural landscapes has pervasive consequences, including human health implications, eutrophication, loss of habitat biodiversity and greenhouse gas ... -
Novel geochemical fingerprints of biogenicity applied to ancient carbonates
(Trinity College (Dublin, Ireland). Department of Geology, 2016)The oxygenation of the Earth’s surface shaped our planetary environment, fundamentally altered global biogeochemical cycles, and ultimately paved the way for the rise of complex animals at the beginning of the Cambrian. ... -
Ammonoid biostratigraphy of the Shannon Basin, western Ireland
(Trinity College (Dublin, Ireland). Department of Geology, 2016)This study concerns ammonoid faunas from a classic turbidite succession, the Ross Sandstone Formation [Serpukhovian-Bashkirian) of the Shannon Basin, western Ireland. In addition to coastal exposures, a set of 12 behind-outcrop ... -
Characterising dispersed metal plumes in surficial soils and sediments in the Irish Midlands: Using isotope fingerprints to develop vectors in mineral exploration
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2018)The enhancement of mineral exploration is essential for the growing demand of base metals in the world. Successful geochemical surveys in soil and till have led to numerous discoveries. However, most of these deposits are ... -
Very large bolide impacts:insight from melt products and element behaviour in the crater fill
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2018)Large (>100 km) impact events have shaped the surfaces of terrestrial bodies in the inner Solar System. They have fundamentally altered the Earth?s geochemistry and may even have contributed to making the Earth habitable. ... -
The Halogen Composition of the Proto-Iceland Plume Source Mantle
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2018)The study of halogens in mantle-derived melts is allowing for new and unique insights into mantle geodynamics (e.g. Kendrick et al., 2017). The current dataset of mantle halogens record the compositions of both the depleted ... -
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 ... -
Elemental and isotopic behaviour of Zn in Deccan basalt weathering profiles: Chemical weathering from bedrock to laterite and links to Zn deficiency in tropical soils
(2018)Zinc (Zn) is a micronutrient for organisms and essential for plant growth, therefore knowledge of its elemental cycling in the surface environment is important regarding wider aspects of human nutrition and health. To ... -
Silicon and chromium stable isotopic systematics during basalt weathering and lateritisation: A comparison of variably weathered basalt profiles in the Deccan Traps, India
(2018)Global biomass production is fundamentally affected by the hydrological cycling of elements at the Earth’s surface. Continental weathering processes are the major source for most bio-essential elements in marine environments ... -
Insight into the origins of metasomatism along the southern margin of the North Atlantic Craton, South Greenland
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2018)The cratonic sub-continental lithospheric mantle (C-SCLM) has been isolated from mantle convection since it stabilised more than 2.5 billion years ago. Volatiles introduced into the C-SCLM drive metasomatism, ultramafic ... -
An Integrated Multi-Isotope and Element Distribution Study of the Irish Biosphere
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2017)Geochemical variation in major and trace element concentrations and multiple isotope systems (87Sr/86Sr, δ18O, δ2H, δ13C, δ15N) are explored within the Irish biosphere. This is done through the analysis of an array of ...
