Search Results - "van Reenen, Dirk D."
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Fluid migration along deep‐crustal shear zone: A case study of the Rhenosterkoppies Greenstone Belt in the northern Kaapvaal Craton, South Africa
Published in Geological journal (Chichester, England) (01-10-2023)“…The north‐dipping Hout River Shear Zone (HRSZ), which marks the boundary between the high‐grade Limpopo Complex in its hanging wall and the low‐grade…”
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High- to ultrahigh-temperature metasomatism related to brine infiltration in the Neoarchean Limpopo Complex: Petrology and phase equilibrium modeling
Published in Precambrian research (01-10-2014)“…•Metasomatic alteration of enderbite at high temperature (ca. 900°C).•Garnet+sillimanite+quartz+anti/mesoperthite in highly metasomatized rock.•Addition of K…”
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Melt- to Shear-Controlled Exhumation of Granulites in Granite–Gneiss Domes: Petrological Perspectives from Metapelite of the Neoarchean Ha-Tshanzi Structure, Central Zone, Limpopo Complex, South Africa
Published in Journal of petrology (01-12-2021)“…Abstract Gneiss domes cored by migmatites and granites represent the principal role of anatectic melts during the exhumation of high-grade metamorphic…”
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Role of fluids in the exhumation of the Southern Marginal Zone of the Limpopo Complex, South Africa
Published in Precambrian research (01-10-2014)“…•Conveyer belt mechanism and emplacement of hot granulite nappe onto greenschist.•Devolatilization of greenschist and influx of fluids into overriding hot…”
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P–T Conditions, Mechanism and Timing of the Localized Melting of Metapelites from the Petronella Shear Zone and Relationships with Granite Intrusions in the Southern Marginal Zone of the Limpopo Belt, South Africa
Published in Journal of petrology (01-04-2018)“…Abstract Evidence is presented for the localized melting of cordierite–orthopyroxene–biotite metapelites within the Petronella shear zone in the Southern…”
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An isotopic and geochemical study of the northern Kaapvaal Craton and the Southern Marginal Zone of the Limpopo Belt: are they juxtaposed terranes?
Published in Lithos (2000)“…To test existing lateral accretion models for the Archean Kaapvaal Craton in South Africa, metapelites and leucocratic granitoids from two different provinces,…”
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Orthopyroxene+sillimanite predating sapphirine+quartz; a rare case of ultrahigh-temperature metamorphism from the Central Zone, Limpopo Complex, South Africa
Published in Canadian mineralogist (01-10-2012)“…Sapphirine + quartz and orthopyroxene + sillimanite occur in garnet from an Mg-Al granulite from the Central Zone of the Limpopo Complex in South Africa…”
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Two-dimensional numerical modeling of pressure–temperature-time paths for the exhumation of some granulite facies terrains in the Precambrian
Published in Journal of geodynamics (01-02-2000)“…Pressure ( P)–temperature ( T) paths accurately record movement of metamorphic rocks within the Earth’s crust. 1D geodynamic modeling of P– T-time paths of…”
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Fluid evolution of partially retrogressed pelitic granulite from the Southern Marginal Zone of the Neoarchean Limpopo Complex, South Africa: Evidence from phase equilibrium modelling
Published in Precambrian research (01-10-2014)“…•Peak metamorphism at 750–900°C and 8–9kbar estimated by pseudosection analysis.•Retrograde hydration at ∼630°C triggered by infiltration of H2O-bearing…”
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Composition and source of fluids in high-temperature graphite-bearing granitoids associated with granulites: Examples from the Southern Marginal Zone, Limpopo Complex, South Africa
Published in Gondwana research (01-08-2018)“…P-T conditions, fluid regime and carbon isotope composition of graphite and fluid inclusions from garnet-sillimanite-bearing leucocratic tonalites,…”
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Carbonate-silicate inclusions in garnet as evidence for a carbonate-bearing source for fluids in leucocratic granitoids associated with granulites of the Southern Marginal Zone, Limpopo Complex, South Africa
Published in Gondwana research (01-01-2020)“…We present a study of carbonate-bearing polyphase inclusions in garnets from leucocratic granitoids intruding metapelitic granulites of the Southern Marginal…”
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Pyroxene-bearing low- and high-HREE TTGs from the northeastern margin of the Kaapvaal Craton, southern Africa: Implications for Archean geodynamics
Published in Lithos (01-12-2019)“…Archean tonalite-trondhjemite-granodiorite (TTG) rocks are generally amphibole- and/or biotite-bearing. Pyroxene-bearing granitoids of TTG affinity are less…”
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Interaction of Biotite-Amphibole Gneiss with H sub(2)O-CO sub(2)-(K, Na)Cl Fluids at 550 MPa and 750 and 800 degree C: Experimental Study and Applications to Dehydration and Partial Melting in the Middle Crust
Published in Journal of petrology (01-12-2014)“…To constrain effects of chloride-bearing H sub(2)O-CO sub(2) fluids on complex natural assemblages during high-grade metamorphism and anatexis, we report the…”
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Fluid-assisted interaction of peraluminous metapelites with trondhjemitic magma within the Petronella shear-zone, Limpopo Complex, South Africa
Published in Precambrian research (01-10-2014)“…•Hot trondhjemitic magma intruded metapelites during the exhumation of the Limpopo Complex.•The magma heated metapelites and dragged them 8.0–9.5kbar to…”
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Corundum + quartz and Mg-staurolite bearing granulite from the Limpopo Belt, southern Africa: Implications for a P– T path
Published in Lithos (01-12-2006)“…A new occurrence of the rare corundum + quartz assemblage and magnesian staurolite has been found in a gedrite–garnet rock from the Central Zone of the…”
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Thermal and Fluid Effects of Granitoid Intrusions on Granulite Complexes: Examples from the Southern Marginal Zone of the Limpopo Complex, South Africa
Published in Petrology (01-11-2018)“…The paper summarizes data on the petrology of granitoid intrusions in the Southern Marginal Zone (SMZ) of the Neoarchean Limpopo granulite complex, South…”
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Inherent gravitational instability of thickened continental crust with regionally developed low- to medium-pressure granulite facies metamorphism
Published in Earth and planetary science letters (15-08-2001)“…Petrological arguments show that regionally developed low- to medium-pressure, high-temperature granulite facies metamorphism may critically enhance the…”
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