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  • 1
    Electronic Resource
    Electronic Resource
    Tungsten isotope evidence from ∼3.8-Gyr metamorphosed sediments for early meteorite bombardment of the Earth (2002)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 418 (2002), S. 403-405 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ‘Late Heavy Bombardment’ was a phase in the impact history of the Moon that occurred 3.8–4.0 Gyr ago, when the lunar basins with known dates were formed. But no record of this event has yet been reported from the few surviving rocks of this age on the Earth. Here we ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature00923
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  • 2
    Electronic Resource
    Electronic Resource
    Geochemistry How well can Pb isotopes date core formation? (2006)
    [s.l.] : Nature Publishing Group
    Nature 444.2006, 7115, E1-, (2 S.) 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Arising from: B. J. Wood & A. N. Halliday Nature 437, 1345–1348 (2005); Wood & Halliday reply Timescale and the physics of planetary core formation are essential constraints for models of Earth's accretion and early ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05359
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  • 3
    Electronic Resource
    Electronic Resource
    Stromatolite reef from the Early Archaean era of Australia (2006)
    [s.l.] : Nature Publishing Group
    Nature 441 (2006), S. 714-718 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The 3,430-million-year-old Strelley Pool Chert (SPC) (Pilbara Craton, Australia) is a sedimentary rock formation containing laminated structures of probable biological origin (stromatolites). Determining the biogenicity of such ancient fossils is the subject of ongoing debate. However, many ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature04764
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  • 4
    Electronic Resource
    Electronic Resource
    Peraluminous potassium-rich granitoids in the Semail Ophiolite (1994)
    Springer
    Contributions to mineralogy and petrology 118 (1994), S. 229-238 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Potassic granites are found as dikes and small stocks in the uppermost part of the mantle sequence of the Semail ophiolite, predominantly in the northern and less frequently in the central and southern part. New chemical analyses show that the biotite granites lie on the same evolutionary trend as the quartz diorites and tonalites, occurring as late intrusives in the gabboro and mantle sequence. Based on mineral chemistry, the P-T conditions of andalusite-cordierite bearing pegmatoidal granites were calculated, giving pressures of 1.8–2.2 kbar and a solidus within the stability field of andalusite. Hydrothermal experiments on five natural granite and tonalite compositions gave minimum melting between 650 and 675° C at 2 kbar. At 700° C, excess H2O, there is already 70–80% melt from the granitic starting compositions. Potassic granites in the ophiolite can be the result of extreme fractional crystallization in the late intrusive series. Granitic melts can also be produced by a two-stage process, in which fluids escaping from the underlying metamorphic sole trigger partial melting of the more felsic members in the ophiolite series. Two-mica granites and pegmatites in the underlying metamorphic sole, possibly melting products of amphibolites and biotite gneisses, are contemporaneous. These escaping fluids could also explain the Pb and Sr isotopic compositions of the leucocratic dikes, indicating variable crustal contamination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306644
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  • 5
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    Trace element and Pb isotope fingerprinting of atmospheric pollution sources: A case study from the east coast of Ireland (2018)
    PERGAMON-ELSEVIER SCIENCE LTD
    In:  EPIC3Applied Geochemistry, PERGAMON-ELSEVIER SCIENCE LTD, 96, pp. 302-326, ISSN: 0883-2927
    Details
    Publication Date: 2018-08-13
    Description: Unravelling inputs of multiple air pollution sources and reconstructing their historic contribution can be a difficult task. Here, new trace metal concentrations and Pb isotope data were combined for a radionuclide (210Pb-241Am) dated peat core from the Liffey Head bog (LHB) in eastern Ireland in order to reconstruct how different sources contributed to the atmospheric pollution over the past century. Highest enrichments in the heavy metals Pb, Cu, Ag, Sn, and Sb, together with a Pb isotope composition (206Pb/204Pb: 18.351 ± 0.013; 206Pb/207Pb: 1.174 ± 0.012) close to that of the Wicklow mineralisation demonstrates significant aerial influx of heavy metals from local mining and smelting activities during the 19th century until ca. 1940s. A dramatic compositional shift defined by elevated Co, Cr, Ni, Mo, Zn, and V enrichments and a sharp transition towards unradiogenic 206Pb values (206Pb/204Pb: 18.271 ± 0.013–17.678 ± 0.006; 206Pb/207Pb: 1.170 ± 0.012–1.135 ± 0.007) is documented from the 1940s until ca. 2000. These are attributed to the atmospheric impact of fossil fuels and especially leaded petrol, modelled to have contributed between 6 and 78% to the total Pb pollution at this site. The subsequent turn to a more radiogenic Pb isotope signature since 2000 in Ireland is clearly documented in the investigated archive (206Pb/204Pb: 17.930 ± 0.006; 206Pb/207Pb: 1.148 ± 0.007) and reflects the abolishment of leaded petrol. However, there remains a persisting and even increasing pollution in Ni, Mo, Cu, and especially Zn, collectively originating from countrywide use of fossil fuels(peat, coal, heating oil, and unleaded vehicle fuels) for domestic and industrial purposes. This illustrates the continued anthropogenic influence on important natural archives such as bogs in Ireland despite the phase-out of leaded petrol.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 6
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    Late Quaternary aridity and dust transport pathways in eastern Australia (2008)
    Quaternary Australasia
    In:  EPIC3Bremerhaven, Quaternary Australasia
    Details
    Publication Date: 2017-01-20
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/pdf
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  • 7
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    Detrial Apatite and Zircon dating of the Stac Fada Member and wider Stoer Group, northwest Scotland (2018)
    PANGAEA
    In:  Supplement to: Kenny, Gavin; O'Sullivan, Gary J; Alexander, Stephen; Simms, Michael; Chew, David M; Kamber, Balz S (2019): On the track of a Scottish impact structure: a detrital zircon and apatite provenance study of the Stac Fada Member and wider Stoer Group, NW Scotland. Geological Magazine, 156(11), 1863-1876, https://doi.org/10.1017/S0016756819000220
    Details
    Publication Date: 2023-01-13
    Description: Full zircon and apatite data for: On the track of a Scottish impact structure: a detrital zircon and apatite provenance study of the Stac Fada Member and wider Stoer Group, northwest Scotland.
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 8
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    Detrial Zircon dating of the Stac Fada Member and wider Stoer Group, northwest Scotland (2018)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: 15BSK_X_SFM; 15BSK001; 15BSK006; 15BSK008; 15BSK009; Age, error; Age, mineral; Correlation coefficient, isotope ratio error; Discordance; Enard Bay; Event label; HAND; Lead; Lead-206/Uranium-238, error, relative; Lead-206/Uranium-238 ratio; Lead-207/Lead-206, error, relative; Lead-207/Lead-206 ratio; Lead-207/Uranium-235, error, relative; Lead-207/Uranium-235 ratio; Sample ID; Sampling by hand; Second Coast Gruinard Bay; Stoer; Thorium; Thorium/Uranium ratio; Uranium
    Type: Dataset
    Format: text/tab-separated-values, 11856 data points
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  • 9
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    Detrial Apatite dating of the Stac Fada Member and wider Stoer Group, northwest Scotland (2018)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: -; 15BSK_X_SFM; 15BSK001; 15BSK006; 15BSK008; 15BSK009; Age, error; Age, error, relative; Age, mineral; Cerium-140; Cerium-140, error; Correlation coefficient, isotope ratio error; Dysprosium-163; Dysprosium-163, error; Enard Bay; Erbium-166; Erbium-166, error; Europium-153; Europium-153, error; Event label; Gadolinium-157; Gadolinium-157, error; HAND; Holmium-165; Holmium-165, error; Lanthanum-139; Lanthanum-139, error; Lead-206/Uranium-238, error, relative; Lead-206/Uranium-238 ratio; Lead-207/Lead-206, error, relative; Lead-207/Lead-206 ratio; Lead-207/Uranium-235, error, relative; Lead-207/Uranium-235 ratio; Lutetium-175; Lutetium-175, error; Manganese-55; Manganese-55, error; Neodymium-146; Neodymium-146, error; Praseodymium-141; Praseodymium-141, error; Samarium-147; Samarium-147, error; Sample ID; Sampling by hand; Second Coast Gruinard Bay; Stoer; Strontium-88; Strontium-88, error; Terbium-159; Terbium-159, error; Thorium-232; Thorium-232, error; Thulium-169; Thulium-169, error; Uranium-238; Uranium-238, error; Uranium-238/Lead-206, error, relative; Uranium-238/Lead-206 ratio; Vanadium-11; Vanadium-11, error; Ytterbium-172; Ytterbium-172, error; Yttrium-89; Yttrium-89, error
    Type: Dataset
    Format: text/tab-separated-values, 34304 data points
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  • 10
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    (Appendix 4) Average major element composition of olivine of serpentinized DSDP and ODP peridotites (2012)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: 147-895D; 195-1200A; 209-1272A; 209-1274A; 84-566C; Area/locality; Calcium; Calcium, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Calculated based on oxygen number; Code; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Elements, total; Event label; Glomar Challenger; Iron, standard deviation; Iron 2+ and 3+; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Joides Resolution; Leg147; Leg195; Leg209; Leg84; Magnesium; Magnesium, standard deviation; Magnesium number; Magnesium number, standard deviation; Magnesium oxide; Magnesium oxide, standard deviation; Manganese; Manganese, standard deviation; Manganese oxide; Manganese oxide, standard deviation; Nickel; Nickel, standard deviation; Nickel oxide; Nickel oxide, standard deviation; North Pacific; North Pacific Ocean; Ocean Drilling Program; ODP; Piece; Sample amount; Sample code/label; Sample code/label 2; Silicon; Silicon, standard deviation; Silicon dioxide; Silicon dioxide, standard deviation; South Atlantic Ocean; Standard deviation; Sum
    Type: Dataset
    Format: text/tab-separated-values, 1584 data points
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