Browsing Geology (Scholarly Publications) by Date of Publication
Now showing items 21-40 of 178
-
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 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 ... -
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 ... -
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 ... -
Monitoring Deposited Dust in The Old Library, Trinity College Dublin
(IFLA, 2011)A study is currently being undertaken to characterise the accumulation rate, distribution, particle size, type and source of dust in the Old Library, Trinity College Dublin, in order to investigate its impact on the ... -
Was the latest Devonian glaciation a multiple event? New palynological evidence from Bolivia
(2011)Assemblages of acritarchs, prasinophytes, and miospores were recovered from the uppermost Iquiri and lower portion of the Itacua formations in southeast Bolivia. Analysis of the diverse and somewhat abundant well-preserved ... -
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 ... -
U-Pb and Th-Pb dating of apatite by LA-ICPMS
(2011)Apatite is a common U- and Th-bearing accessory mineral in igneous and metamorphic rocks, and a minor but widespread detrital component in clastic sedimentary rocks. U-Pb and Th-Pb dating of apatite has potential application ... -
Changes in the hydrological cycle in tropical East Africa during the Paleocene- Eocene Thermal Maximum
(2012)The Paleocene-Eocene Thermal Maximum (PETM), at ca. 55.8 Ma, is one of the most studied instances of past greenhouse gas-induced global warming. As such, it provides a rich opportunity to examine the impact of such global ... -
Acid Treatment effects on the stable isotopic signature of fossils
(2012)Prior to geochemical analyses, fossil bones and teeth are often extracted from any surrounding lithified sediments using chemical techniques such as immersion in acid. As stable isotope analysis becomes more commonplace ... -
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 ... -
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 ... -
Effects of over-winter green cover on groundwater nitrate and dissolved organic carbon concentrations beneath tillage land
(Elsevier, 2012)Application of over-winter green cover (e.g. cover crops) as a measure for reducing nitrate losses from tillage land has been frequently investigated, especially in the unsaturated zone. Monitoring of groundwater is less ... -
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) -
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 ... -
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 ... -
Structural properties and transformations of precipitated FeS
(2012)Nanocrystalline iron sulfides form in diverse anoxic environments. The initial precipitate is commonly referred to as nanocrystalline mackinawite (FeS) or amorphous FeS. In order to better understand the structure of the ...