Geochemistry of Bashibos-Bajrambos metasedimentary unit, Serbo-Macedonian massif, North Macedonia: Implications for age, provenance and tectonic setting

Šoster, Aleš; Zavašnik, Janez; O’Sullivan, Paul; Herlec, Uroš; Krajnc, Barbara Potočnik; Palinkaš, Ladislav; Zupančič, Nina; Dolenec, Matej

doi:10.1016/j.chemer.2020.125664

Cited by 11 publications

(8 citation statements)

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“…Relative immobility of REEs during secondary processes like weathering and diagenesis qualifies them as robust tools for provenance studies (Cullers et al, 1997; McLennan, 1989; Šoster et al, 2020). The differences between Archean and post‐Archean sedimentary rocks in terms of their REE abundances and patterns were established by Taylor and McLennan (Manikyamba & Kerrich, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Taking into account the geochemical signatures discussed above, it is reasonable to attribute the provenance of these meta-sediments to a predominantly felsic to the intermediate source. Relative immobility of REEs during secondary processes like weathering and diagenesis qualifies them as robust tools for provenance studies (Cullers et al, 1997;McLennan, 1989;Šoster et al, 2020). The The REE patterns of mafic rocks have low (La/Yb) N ratios and smaller or no Eu anomalies whereas those of more silicic rocks usually show higher (La/Yb) N ratios and negative Eu anomalies (Cullers et al, 1997;Cullers & Graf, 1984a, 1984b.…”

Section: Provenancementioning

confidence: 99%

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Geochemistry of meta‐sediments from Neoproterozoic Shimla and Chail Groups of Outer Lesser Himalaya: Implications for provenance, tectonic setting, and paleo‐weathering conditions

et al. 2021

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The depositional history of the Himalayas has been overprinted by the tectonic activities during the Himalayan Orogeny. A detailed investigation of the sedimentary units can provide crucial information regarding their depositional history and provenance.This study aims at constraining the weathering history, tectonic setting, and provenance of meta-sediments from the Shimla and Chail Groups of Outer Lesser Himalaya. With similar major element chemistry, these meta-sediments comprise a low-silica group (avg. SiO 2 /Al 2 O 3 <3.29). Weathering intensity parameters chemical index of alteration (CIA), plagioclase index of alteration (PIA) and index of chemical variability (ICV) range from 62 to 78 (avg. = 69.41), 70 to 96 (avg. = 85.34), and 0.45 to 1.45 (avg. = 1.01), respectively indicating moderate to severe degrees of weathering. Transition element ratios [Cr/V (1.68-5.18), Ni/Co (1.47-30.99), and V/Ni (0.87-4.61)], and trace element bivariate plots suggest a recycled, felsic to intermediate provenance that has primarily been derived from Post-Archean sources with minor inputs from Archean units. A passive margin depositional setting with arcderived sources is suggested for the Chail and Shimla meta-sediments. Rare-earth element patterns reveal similarities between the studied metasediments with TTG gneisses and sanukitoids from the Aravalli and Bundelkhand Cratons, as well as Chaur and Jutogh granitoids. Therefore, Neoproterozoic Himalayan granitoids and ArcheanAravalli-Bundelkhand granitoids (TTGs and high-K granitoids) could be potential sources of these meta-sediments, as also suggested by the detrital zircon age distribution from the Beas-Satluj-Pabbar valleys and Shimla Group.

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Section: Discussionmentioning

confidence: 99%

Section: Provenancementioning

confidence: 99%

Geochemistry of meta‐sediments from Neoproterozoic Shimla and Chail Groups of Outer Lesser Himalaya: Implications for provenance, tectonic setting, and paleo‐weathering conditions

et al. 2021

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“…These elements are also classified as incompatible elements, so their presence is interpreted as compiling the composition of the main rock-forming minerals such as muscovite, albite, and oligoclase. Based on the total mineral content and also the relatively low content of Fe2O3 (6 -12 Wt%), CaO (1 -2 Wt%), and TiO2 (1 -1.2 Wt%) in metapelite, accompanied by a relatively high abundance of SiO2 and Al2O3, indicates a low abundance of mafic minerals [22], therefore shows metapelite derived from felsic rock. On the other hand, trace elements have an abundance of up to 300 ppm.…”

Section: Elemental Distributionmentioning

confidence: 99%

Characterization of Metapelite and Metasiltstone as Uranium-REE hosted rocks in Rirang Area, West Kalimantan

Farrenzo,

Nugraheni,

Sukadana

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The Rirang River, Kalan, West Kalimantan has U and REE resources in the form of mineralization found at the intercalation of metapelite and metasiltstone. However, there are only a few studies about the characterization of U and REE-bearing host rocks in Indonesia. Determining the geological influence of the metasedimentary rock on the mineralization of U and REE is crucial. Thus, the characterization of metapelite and metasiltstone has been substantiated in this study to reveal the potency of the host rock in hosting the U and REE. Petrographic, micro-XRF, and AMICS methods were used to conduct mineralogical analysis. These two rocks share a mineral composition that includes clay minerals, hydrothermal alteration products, and several minerals that indicate metamorphism processes. The foliation structure with a spotted shale texture further indicates the metamorphism process in metapelite and metasiltstone. REE and trace elements associated with U are constituents of clay minerals such as wonesite, staurolite, montmorillonite, chlorite, illite, and kaolinite. The geochemical properties of metapelite and metasiltstone suggest that REE mineralization and trace elements associated with U come from hydrothermal alteration processes.

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“…The early Pan-African to Lower Paleozoic peri-Gondwanan arc interval (Kearey et al, 2009 and references therein) was followed by the late Variscan Paleotethyan closure and assembly of the southern realm of European Pangea (e.g., Stampfli & Kozur, 2006;Kroner & Romer, 2013;Zulauf et al, 2018;Spahić et al, 2019a). The Middle Paleozoic spreading culminated during Variscan crustal thickening event best recorded along the western Moesian microplate (Iancu et al, 2005;Plissart et al, 2018;Spahić et al, 2019b;Šoster et al, 2020). The Paleotethyan subduction outlived the Variscan event (Pamić & Jurković, 2002;Spahić et al, 2019a), whereas the closure of Paleotethys itself is attributed to the poorly understood Triassic Eocimmerian "docking" (Zulauf et al, 2015).…”

Section: Regional Settingmentioning

confidence: 99%

“…The Paleotethyan subduction outlived the Variscan event (Pamić & Jurković, 2002;Spahić et al, 2019a), whereas the closure of Paleotethys itself is attributed to the poorly understood Triassic Eocimmerian "docking" (Zulauf et al, 2015). The Eocimmerian "docking" in the region seems to be controlled by the Triassic tectonic interaction among the North African ribbon continent (Stampfli et al, 2001), involving predominantly Cadomian-(Minoan) type crystalline fragments (Zulauf et al, 2015;Šoster et al, 2020).…”

Section: Regional Settingmentioning

confidence: 99%

The role of the pre-Alpine polycrystalline basement in the paleogeographic configuration of multiple Neotethyan oceanic basins

Spahić¹,

Gaudenyi²

2021

Geologija

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The study provides a deeper understanding of the early Mesozoic paleogeogeographic spatial-temporal relationship by studying the two Adria-Europe intervening basement blocks. The Drina-Ivanjica and Pelagonian crustal fragments play important role in the internal early Alpine oceanic constitution further controlling the late Jurassic emplacement of Tethyan Dinaric-Hellenic ophiolites. The proposed paleogeographic reassessment is driven by the new paleocontinental inheritance data associated with the Variscan – pre-Variscan basement terranes. The recently published data suggest an Avalonian-type inheritance of the Pelagonian basement block which indicates a different pre-Variscan plate-tectonic journey, including separate spatial arrangement during Variscan amalgamation. In turn, Cadomian-type basement inheritance has been documented within the sliced Adria microplate. Thus, the Avalonian inheritance place the Pelagonian block away from the Apulia/Adria (Dinarides). In the investigated context of Paleozoic-Mesozoic paleogeographic transition, the Pelagonian block may represent a segment of the Cimmerian ribbon continent or southernmost segment of the Variscan Europe. With regards the nearby Adria microplate, a Triassic-Jurassic oceanic opening led to the decoupling (spreading away from the main Adria microplate) of the Drina-Ivanjica block. The rifting is in line with the simultaneous yet opposite or westward-directed drift of the Pelagonides. The breakup of south European Variscan configuration eventually result in the spatial alignment of the two basement fragments referred to as the “Drina–Pelagonide continental splinter”. By linking the paleogeographic pre-Jurassic–Jurassic relationship between these continental units, the two landlocked Neotethyan Vardar s.l. basins are extrapolated, “Dinaric Tethys” / Inner Dinaric-(Mirdita-Pindos) and the main Vardar Ocean (Western Vardar Zone).

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Geochemistry of Bashibos-Bajrambos metasedimentary unit, Serbo-Macedonian massif, North Macedonia: Implications for age, provenance and tectonic setting

Cited by 11 publications

References 66 publications

Geochemistry of meta‐sediments from Neoproterozoic Shimla and Chail Groups of Outer Lesser Himalaya: Implications for provenance, tectonic setting, and paleo‐weathering conditions

Geochemistry of meta‐sediments from Neoproterozoic Shimla and Chail Groups of Outer Lesser Himalaya: Implications for provenance, tectonic setting, and paleo‐weathering conditions

Characterization of Metapelite and Metasiltstone as Uranium-REE hosted rocks in Rirang Area, West Kalimantan

The role of the pre-Alpine polycrystalline basement in the paleogeographic configuration of multiple Neotethyan oceanic basins

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