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Temperature-dependent isotopic fractionation of lithium between clinopyroxene and high-pressure hydrous fluids
The fractionation of lithium isotopes between synthetic spodumene as representative of Li-bearing clinopyroxene and Cl- and OH-bearing aqueous fluids was experimentally determined between 500 andExpand
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West African provenance for Saxo-Thuringia (Bohemian Massif): Did Armorica ever leave pre-Pangean Gondwana? – U/Pb-SHRIMP zircon evidence and the Nd-isotopic record
Neoproterozoic rocks in the Saxo-Thuringian part of Armorica formed in an active margin setting and were overprinted during Cadomian orogenic processes at the northern margin of Gondwana. The EarlyExpand
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Two plates — Many subduction zones: The Variscan orogeny reconsidered
Abstract The Variscides of Europe and N-Africa are the result of the convergence of the plates of Gondwana and Laurussia in the Paleozoic. This orogen is characterized by the juxtaposition of blocksExpand
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Boron-isotope fractionation between tourmaline and fluid: an experimental re-investigation
The fractionation of boron isotopes between synthetic dravitic tourmaline and fluid was determined by hydrothermal experiments between 400 and 700°C at 200 MPa and at 500°C, 500 MPa. Tourmaline wasExpand
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The geochemical cycle of boron: Constraints from boron isotope partitioning experiments between mica and fluid
Abstract The fractionation of boron isotopes between synthetic boromuscovite and fluid was experimentally determined at 3.0 GPa/500 °C and 3.0 GPa/700 °C. For near-neutral fluids Δ11B(mica-fluid) =Expand
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Genesis of Ultramafic Lamprophyres and Carbonatites at Aillik Bay, Labrador: a Consequence of Incipient Lithospheric Thinning beneath the North Atlantic Craton
Numerous dykes of ultramafic lamprophyre (aillikite, mela-aillikite, damtjernite) and subordinate dolomite-bearing carbonatite with U–Pb perovskite emplacement ages of 590–555Ma occur in the vicinityExpand
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Lithium isotope fractionation between Li-bearing staurolite, Li-mica and aqueous fluids: An experimental study
Abstract We determined the lithium isotope fractionation between synthetic Li-staurolite and aqueous fluids containing excess LiCl or LiOH at 3.5 GPa between 670 and 880 °C and between Li-mica andExpand
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Mediterranean Tertiary lamproites derived from multiple source components in postcollisional geodynamics
Abstract In the Mediterranean area, lamproitic provinces in Spain, Italy, Serbia and Macedonia have uniform geological, geochemical and petrographic characteristics. Mediterranean lamproites areExpand
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Craton reactivation on the Labrador Sea margins: 40Ar/39Ar age and Sr–Nd–Hf–Pb isotope constraints from alkaline and carbonatite intrusives
Abstract The once-contiguous North Atlantic craton (NAC) is crosscut by the Labrador Sea that opened during the Early Cenozoic after extensive Mesozoic continental rifting and removal of cratonicExpand
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Pb, O, and C isotopes in silicified Mooidraai dolomite (Transvaal Supergroup, South Africa): implications for the composition of Paleoproterozoic seawater and `dating' the increase of oxygen in the
Abstract The Mooidraai Dolomite Formation is a unit of marine sedimentary carbonates in the upper Transvaal Supergroup which recorded significant changes in the composition of the Earth’s atmosphereExpand
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