Browsing by Subject "LA-ICP-MS"
Now showing items 1-9 of 9
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Chemical Abrasion Applied to LA-ICP-MS U-Pb Zircon Geochronology
(2014)Zircon (ZrSiO4) is the most commonly used mineral in U–Pb geochronology. Although it has proven to be a robust chronometer, it can suffer from Pb-loss or elevated common Pb, both of which impede precision and accuracy of ... -
Chlorite-white Mica Pairs' composition as a micro-chemical guide to fingerprint massive sulfide deposits of the Bathurst Mining Camp, Canada
(2019)The compositions of phyllosilicates, with a focus on fluid-mobile elements, were evaluated as a means to fingerprint the Middle Ordovician metamorphosed (greenschist facies) volcanogenic massive sulfide deposits of the ... -
The Distribution of Precious and Energy-Critical Elements at the Scale of a Porphyry Copper Deposit
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2020)Magmatic-hydrothermal porphyry copper deposits are the world's primary sources of Cu. Moreover, these may contain extractable concentrations of rare metal(loid)s e.g., Se, Te, In, Co, Ge, Ga, Ag, Au and Re. Some of these ... -
A geo-thermochronological study offshore west of Ireland: the timing of exhumation and magmatic activity and the nature of the basement on the Irish Atlantic Margin
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)In recent years, the use of multiple low-temperature thermochronometers combined with inverse thermal history modelling of multiple samples on vertical profiles has been shown capable of detecting low magnitude exhumation ... -
Geochemical and mineralogical characterisation of the Caribou Zn-Pb VMS deposit, Bathurst Mining Camp, New Brunswick, Canada
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2022)The Caribou Volcanogenic Massive Sulphide (VMS) Zn-Pb deposit in the Appalachians of Eastern Canada is hosted by Middle Ordovician shale and felsic volcanic rocks and deposited in a back-arc environment. The entire mineralised ... -
Geochemical characterisation of the Late Quaternary widespread Japanese tephrostratigraphic markers and correlations to the Lake Suigetsu sedimentary archive (SG06 core)
(2019)Large Magnitude (6–8) Late Quaternary Japanese volcanic eruptions are responsible for widespread ash (tephra) dispersals providing key isochrons suitable for the synchronisation and dating of palaeoclimate archives across ... -
Geochemistry of the Phlegraean Fields (Italy) proximal sources for major Mediterranean tephras: Implications for the dispersal of Plinian and co-ignimbritic components of explosive eruptions
(2012)Volcanic activity at Phlegraean Fields, Italy, produced several major marker tephras over a 50 ka period. The caldera forming eruptions of the Campanian Ignimbrite (CI) and Neapolitan Yellow Tuff (NYT) are of particular ... -
Quantitative data extraction from orthopyroxene trace element maps and its potential to examine the formation of the UG2 unit, bushveld complex
(2019)We present a mineral chemical stratigraphy across the UG2 Unit, situated in the Upper Critical Zone of the Bushveld Complex. The magmatic evolution of the rocks hosting this world-class ore deposit for chromium and platinum ... -
Refinement of high-spatial resolution U-Pb geochronological methodologies
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2021)Zircon [ZrSiO4] is a naturally occurring mineral commonly used in geochronological, isotope and elemental geochemical studies. It can form as an accessory phase in a wide variety of magmatic and metamorphic conditions and ...