Search Results - "Krapež, Bryan"

Dust to dust: Evidence for the formation of “primary” hematite dust in banded iron formations via oxidation of iron silicate nanoparticles by Rasmussen, Birger, Muhling, Janet R., Suvorova, Alexandra, Krapež, Bryan

“…•Hematite dust in major BIF formed by replacement of iron-silicate nanoparticles.•Hematite dust is not a reliable proxy for relict iron oxide/hydroxide…”
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Nitrogen cycle in the Late Archean ferruginous ocean by Busigny, Vincent, Lebeau, Oanez, Ader, Magali, Krapež, Bryan, Bekker, Andrey

“…The Hamersley Group comprises a Late Archean sedimentary succession, which is thought to record the prelude to the atmospheric oxygenation in the…”
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Relationship between detrital zircon age-spectra and the tectonic evolution of the Late Archaean Witwatersrand Basin, South Africa by Kositcin, Natalie, Krapež, Bryan

“…SHRIMP U–Pb detrital zircon age-spectra for 14 samples from the West Rand and Central Rand Groups of the Witwatersrand Basin indicate that felsic source rocks…”
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Physical volcanology and geochemistry of a Late Archaean volcanic arc: Kurnalpi and Gindalbie Terranes, Eastern Goldfields Superterrane, Western Australia by Barley, Mark E., Brown, Stuart J.A., Krapež, Bryan, Kositcin, Natalie

“…Late Archaean (2715–2704 Ma) calc-alkaline volcanic complexes in the Kurnalpi Terrane are identical in facies and geochemistry to modern intra-arc volcanic…”
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The Paleoproterozoic megascopic Stirling biota by Bengtson, Stefan, Rasmussen, Birger, Krapež, Bryan

“…The 2.0–1.8-billion-year-old Stirling Range Formation in southwestern Australia preserves the deposits of a siliciclastic shoreline formed under the influence…”
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Hydrothermal and resedimented origins of the precursor sediments to banded iron formation: sedimentological evidence from the Early Palaeoproterozoic Brockman Supersequence of Western Australia by Krapež, Bryan, Barley, Mark E., Pickard, April L.

“…The Early Palaeoproterozoic Brockman Supersequence comprises banded iron formation (BIF), bedded chert, limestone, mudrock, sandstone, breccia, tuffaceous…”
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A comment on “A tale of two basins? Stratigraphy and detrital zircon provenance of the Palaeoproterozoic Turee Creek and Horseshoe basins of Western Australia”—Reply by Krapež, Bryan

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Correlation of the stratigraphic cover of the Pilbara and Kaapvaal cratons recording the lead up to Paleoproterozoic Icehouse and the GOE by Bekker, Andrey, Krapež, Bryan, Karhu, Juha A.

“…The Turee Creek Basin of the Pilbara Craton is critical for timing onset of the early Paleoproterozoic Icehouse and the GOE. We establish correlation to the…”
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Greenalite precipitation linked to the deposition of banded iron formations downslope from a late Archean carbonate platform by Rasmussen, Birger, Muhling, Janet R., Suvorova, Alexandra, Krapež, Bryan

“…•Greenalite nanoparticles occur in preservational windows in late Archean BIF.•Ferrous silicates are interpreted to be relict seawater precipitates.•Iron in…”
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Tectonostratigraphy of the Late Archean Dharwar Supergroup, Dharwar Craton, India: Defining a tectonic history from spatially linked but temporally distinct intracontinental and arc-related basins by Krapež, Bryan, Srinivasa Sarma, D., Ram Mohan, M., McNaughton, Neal J., Rasmussen, Birger, Wilde, Simon A.

“…•The Bababudan Group is an intracontinental rift to passive-margin succession.•The Chitradurga Group is divided into unconformity bound Stages I and II.•Stage…”
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Reply to comment on “Bekker, A., Krapež, B., Karhu, J.A., 2020. Correlation of the stratigraphic cover of the Pilbara and Kaapvaal cratons recording the lead up to Paleoproterozoic Icehouse and the GOE. Earth-Science Reviews, 211, 103,389” by Pascal Philippot, Bryan A. Killingsworth, Jean-Louis Paquette, Svetlana Tessalina, Pierre Cartigny, Stefan V. Lalonde, Christophe Thomazo, Janaina N. Ávila, Vincent Busigny by Bekker, Andrey, Krapež, Bryan, Karhu, Juha A., Chamberlain, Kevin

“…Bekker et al. (2020) and Philippot et al. (2018) discussed implications of the geological and geochemical records of the Turee Creek Basin in Western Australia…”
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Provenance and tectonic setting of the supra-crustal succession of the Qinling Complex: Implications for the tectonic affinity of the North Qinling Belt, Central China by Shi, Yu, Huang, Qianwen, Liu, Xijun, Krapež, Bryan, Yu, Jinhai, Bai, Zhian

“…[Display omitted] •Meta-sedimentary rocks of the Qinling Complex have protoliths probably of graywackers.•The lower, middle and upper units have zircon ages of…”
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The origin of uraninite, bitumen nodules, and carbon seams in Witwatersrand gold-uranium-pyrite ore deposits, based on a Permo-Triassic analogue by England, Gavin L, Rasmussen, Birger, Krapez, Bryan, Groves, David I

“…Permo-Triassic Dongara sandstones from the Perth basin, Western Australia, contain solitary bitumen nodules analogous to the uraniferous bitumen nodules in the…”
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A tale of two basins? Stratigraphy and detrital zircon provenance of the Palaeoproterozoic Turee Creek and Horseshoe basins of Western Australia by Krapež, Bryan, Müller, Stefan G., Fletcher, Ian R., Rasmussen, Birger

“…The 2445–2010Ma tectonic evolution of the southwestern Pilbara Craton is recorded by two depositional basins, but considering the time span involved it is…”
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Iron formation; the sedimentary product of a complex interplay among mantle, tectonic, oceanic, and biospheric processes by Bekker, Andrey, Slack, John F, Planavsky, Noah, Krapez, Bryan, Hofmann, Axel, Konhauser, Kurt O, Rouxel, Olivier J

“…Iron formations are economically important sedimentary rocks that are most common in Precambrian sedimentary successions. Although many aspects of their origin…”
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Microtextures, geochemistry and geochronology of authigenic xenotime: constraining the cementation history of a Palaeoproterozoic metasedimentary sequence by VALLINI, DANIELA A., RASMUSSEN, BIRGER, KRAPEŽ, BRYAN, FLETCHER, IAN R., MCNAUGHTON, NEAL J.

“…An ≈ 26 m thick unit of phosphatic sandstone and black shale (the Phosphatic Unit) in the Palaeoproterozoic Mount Barren Group of south‐western Australia…”
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Petrogenesis of Meso-Neoarchean granitoids from the Chitradurga Greenstone Belt: Implications on crustal growth and reworking of the Dharwar Craton, southern India by Ram Mohan, M., McNaughton, Neal J., Srinivasa Sarma, D., Rajamanickam, M., Fletcher, Ian R., Wilde, Simon A., Rasmussen, Birger, Krapež, Bryan, Balakrishnan, S.

“…[Display omitted] •Granitoids of Chitradurga belt were emplaced at ∼ 3.2 Ga, ∼3.0 Ga and ∼ 2.6 Ga.•Two metamorphic events are documented at ∼ 3.0 Ga…”
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Sedimentation and magmatism in the Paleoproterozoic Cuddapah Basin, India: Consequences of lithospheric extension by Sheppard, Stephen, Rasmussen, Birger, Zi, Jian-Wei, Somasekhar, V., Srinivasa Sarma, D., Ram Mohan, M., Krapež, Bryan, Wilde, Simon A., McNaughton, Neal J.

“…The Cuddapah Basin is one of many Proterozoic, intracontinental sedimentary basins across Peninsular India. The basin comprises several unconformity-bounded…”
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1.2 Ga thermal metamorphism in the Albany-Fraser Orogen of Western Australia; consequence of collision or regional heating by dyke swarms? by Dawson, Galvin C, Krapez, Bryan, Fletcher, Ian R, McNaughton, Neal J, Rasmussen, Birger

“…Compressive fabrics in the Late Palaeoproterozoic Mount Barren Group of the Albany-Fraser Orogen, southwestern Australia, record Mesoproterozoic collision…”
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Stratigraphy of the Late Palaeoproterozoic (∼2.03Ga) Wooly Dolomite, Ashburton Province, Western Australia: A carbonate platform developed in a failed rift basin by Krapež, Bryan, Müller, Stefan G., Bekker, Andrey

“…•The Wooly Dolomite was deposited in the Horseshoe rift basin.•The basin post-dates ∼2210Ma dolerites and the 2195–2145Ma Ophthalmia Orogen.•The formation…”
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