Browsing by Subject "Geology"
Now showing items 1-20 of 26
-
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 ... -
Basic volcanism contemporaneous with the Sturtian glacial episode in NE Scotland
(2010)The Dalradian Supergroup contains three distinct glacigenic units, formerly termed `Boulder Beds?, which are correlated with widespread Neoproterozoic glaciations. The oldest and thickest unit, the Port Askaig Formation, ... -
Calibration of cosmogenic 36Cl production rates from Ca and K spallation in lava flows from Mt. Etna (38?N, Italy) and Payun Matru (36?S, Argentina)
(2011)Published cosmogenic 36Cl production rates from Ca and K spallation differ by almost a factor of 2. In this paper we determine production rates of 36Cl from Ca and K in samples of known age containing little Cl. Ca-rich ... -
Chemical abrasion applied to SHRIMP zircon geochronology: An example from the Variscan Karkonosze Granite (Sudetes, SW Poland)
(2012)Thermal annealing followed by acid etching of zircon (chemical abrasion or CA) can be successfully utilised to minimize or eliminate the effects of major and cryptic Pb-loss for SIMS U?Pb zircon dating. The procedure is ... -
Combined apatite fission track and U-Pb dating by LA-ICPMS and its application in apatite provenance analysis
(Mineralogical Association of Canada Short Course (v42), 2012) -
Early mafic magmatism and crustal anatexis on the Isle of Rum: evidence from the Am M?m intrusion breccia
(2009)The Rum Igneous Centre comprises two early marginal felsic complexes (the Northern Marginal Zone and the Southern Mountains Zone), along with the later central ultrabasic?basic layered intrusions. These marginal complexes ... -
Evaluating the utility of 15N and 18O isotope abundance analyses to identify nitrate sources: A soil zone study
(2012)15N and 18O isotope abundance analyses in nitrate (NO3?) (expressed as ?15N-NO3? and ?18O-NO3? values respectively) have often been used in research to help identify NO3? sources in rural groundwater. However, questions ... -
Exploitation of Decorative Stone in Victorian Ireland: From Quarry to Building
(Trinity College Dublin. School of Natural Sciences. Discipline of Geology, 2022)Ireland contains a diverse range of rock types that are characterised as igneous, sedimentary or metamorphic in origin, which have been widely utilised for building, and to a lesser extent decorative, purposes over the ... -
The field and remote sensing analysis of the Kerguelen Archipelago structure, Indian Ocean
(Elsevier, 2011)The Kerguelen Archipelago is part of an oceanic plateau with a complex history. Little work has been done on the tectonics of the onshore areas, even though the extensive outcrop renders the islands especially good for ... -
Geochronology of the Tardree Rhyolite Complex, Northern Ireland: Implications for zircon fission track studies, the North Atlantic Igneous Province and the age of the Fish Canyon sanidine standard
(2011)The British-Irish Palaeogene Igneous Province (BIPIP) is part of the larger North Atlantic Igneous Province and includes the lava fields of Antrim, Mull, and Skye. The Tardree Rhyolite Complex (TRC) in Northern Ireland ... -
The Geological sublime in Victorian landscape painting
(Trinity College Dublin. School of Histories & Humanities. Discipline of History Of Art, 2019)Very little has been written about the sublime in Victorian landscape painting and it is more commonly associated with the Romantic period. Nevertheless, an examination of the work of mid-nineteenth-century artists shows ... -
Hidden Archaean and Palaeoproterozoic crust in NW Ireland? Evidence from zircon Hf isotopic data from granitoid intrusions
(2009)The presence of major crystalline basement provinces at depth in NW Ireland is inferred from in situ Hf isotope analysis of zircons from granitoid rocks that cut structurally overlying metasedimentary rocks. Granitoids in ... -
The impact of strike-slip, transtensional and transpressional fault zones on volcanoes. Part1: scaled experiments
(Elsevier, 2011)The activity of a regional strike-slip fault can affect or channel magma migration, can deform a volcano and can destabilise the edifice flanks. The aim of this study is to determine the location, strike, dip and slip of ... -
INFLUENCE OF POSSIBLE SECONDARY SULPHATE MINERALIZATION ON THE IMPACT OF ACID MINE DRAINAGE TO SURFACE WATERS
(Tigroney Press, ireland, 2017-06-08)Acid mine drainage (AMD) is a major environmental pollutant of both surface and ground waters. Intensive sampling of drainage from mine adits has revealed a seasonal variation in the Zn:Cu ratio. This is linked to secondary ... -
The interaction between volcanoes and strike-slip, transtensional and transpressional fault zones: Analogue models and natural examples
(Elsevier, 2011)Regional strike-slip faulting can control magma movements, deform volcanoes and may destabilise their flanks. The aim of this study is to address this problem by comparing two natural examples, Basse Terre Island volcanoes, ... -
The North Pennine batholith (Weardale Granite) of northern England new data on its age and form
(2010)A three-dimensional gravity model of the North Pennine batholith is interpreted to indicate that it comprises five contiguous steep-sided plutons. The North Pennine batholith was previously referred to as the Weardale ... -
Radon Potential as a diagnostic tool for indoor radon hazard mapping
(2019)At over 56% of the annual effective dose, radon is the primary source of ionizing radiation exposure received by the Irish population. Although the average indoor radon concentration in Ireland has been reduced since ... -
Re-Os geochronology of the Neoproterozoic - Cambrian Dalradian Supergroup of Scotland and Ireland: Implications for Neoproterozoic stratigraphy, glaciations and Re-Os systematics
(2011)New Re-Os geochronology for the Ballachulish Slate Formation of the Dalradian Supergroup, Scotland yields a depositional age of 659.6 ? 9.6 Ma. This age represents the first successful application of the Re-Os system to ...
