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Precise U–Pb titanite age constraints on the emplacement of the Bushveld Complex, South Africa
The c. 2.06 Ga Bushveld Complex intrudes the Transvaal Supergroup, South Africa. Calcsilicate xenoliths within the mafic phase of the Bushveld Complex (Rustenburg Layered Suite, or RLS) preserveExpand
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Lithostratigraphic and petrographic analysis of ICDP drill core LB-07A, Bosumtwi impact structure, Ghana
Lithostratigraphic and petrographic studies of drill core samples from the 545.08 m deep International Continental Scientific Drilling Program (ICDP) borehole LB-07A in the Bosumtwi impact structureExpand
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High-δ13C Paleoproterozoic carbonates from the Transvaal Supergroup, South Africa
Marbles from the Transvaal Supergroup (Kaapvaal craton, South Africa) record two positive carbon isotope excursions to average δ 13 C carbonate values of ∼+6‰ to +8‰ (relative to V-PDB), separated byExpand
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Geology and evolution of the Vredefort Impact Structure, South Africa
The importance of large impact events for the evolution of all bodies in the Solar System has been recognised by a large proportion of the geological community only in the past 15 years. More thanExpand
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A SHRIMP U–Pb and LA-ICP-MS trace element study of the petrogenesis of garnet–cordierite–orthoamphibole gneisses from the Central Zone of the Limpopo Belt, South Africa
Abstract The Central Zone of the Limpopo Belt (South Africa) underwent high-grade metamorphism at ∼2.7–2.5 and ∼2.03 Ga. Quartz-rich, garnet-, cordierite-, biotite- and orthoamphibole-bearing,Expand
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The age and thermal evolution of the Vredefort impact structure: A single-grain UPb zircon study
Abstract Single-grain UPb SHRIMP analyses of a heterogeneous zircon population from a small granite body in the Archean basement core of the Vredefort Dome indicate an age of 2017 ± 5 Ma for theExpand
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Mid-crustal granulite facies metamorphism in the Central Kaapvaal craton: the Bushveld Complex connection
Abstract The numerous greenstone remnants which occur as inclusions in the Archaean gneissic granitoid basement exposed in the core of the Vredefort Dome display evidence of very high grades ofExpand
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Spinel-cordierite symplectites replacing andalusite: evidence for melt-assisted diapirism in the Bushveld Complex, South Africa
Spinel-cordierite symplectites partially replacing andalusite occur in metapelitic rocks within the cores of several country rock diapirs that have ascended into the upper levels of layeredExpand
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40Ar/39Ar age constraints on low-grade metamorphism and cleavage development in the Transvaal Supergroup (central Kaapvaal craton, South Africa): implications for the tectonic setting of the Bushveld
Rocks of the Palaeoproterozoic Transvaal Supergroup, situated between the Bushveld Igneous Complex and the Vredefort Impact Structure in the central parts of the Kaapvaal craton (South Africa),Expand
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Dermal exposure to jet fuel (JP-8) in US Air Force personnel.
Limited research has been conducted on dermal exposure and risk assessment, owing to the lack of reliable measurement techniques and data for quantitative risk assessment. We investigated theExpand
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