Late Paleozoic oxygenation of marine environments supported by dolomite U-Pb dating [PDF]
Nature CommunicationsUnderstanding causal relationships between evolution and ocean oxygenation hinges on reliable reconstructions of marine oxygen levels, typically from redox-sensitive geochemical proxies.
Michal Ben-Israel +5 more
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Petrography descriptions and U-Pb zircon datasets from the Archean Pavas Block, Precambrian of Uruguay [PDF]
Data in Brief, 2021 This database is a geological and geochronological compilation made to study a small Archean/Paleoproterozoic block located in the centre of the Precambrian rock exposition of Uruguay.
Henri Masquelin +3 more
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Impact and Correction of Analytical Positioning on Accuracy of Zircon U-Pb Dating by SIMS [PDF]
Frontiers in Chemistry, 2020 Secondary ion mass spectrometry (SIMS) is one of the most important analytical tools for geochronology, especially for zircon U-Pb dating. Due to its advantages in spatial resolution and analytical precision, SIMS is the preferred option for multi-spot ...
Yu Liu +13 more
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U-Th and U-Pb geochronology of Quaternary carbonates [PDF]
National Science ReviewWang, Jian +3 more
openaire +4 more sources
Secular change of tectonic setting in the Archean Takanen greenstone belt, northeastern Karelia Province, Fennoscandian Shield [PDF]
Bulletin of the Geological Society of Finland, 2023 The target of this study is the Takanen greenstone belt (TGB), a small 11-km-long and east-west oriented supracrustal belt in the northern Lentua complex of the Western Karelia Subprovince (eastern Finland).
Ville Järvinen +6 more
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Some new insights into the geochronology of the Western Karelia Subprovince, Finnish Lapland [PDF]
Bulletin of the Geological Society of Finland, 2020 Archean terranes are generally poorly exposed and structurally complicated, making models of geological evolution difficult to establish. Because of pervasive metamorphism, strong deformation, and poorly exposed bedrock, the stratigraphy, geochronology ...
Johanna Tepsell +9 more
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Technical note: LA–ICP-MS U–Pb dating of unetched and etched apatites [PDF]
Geochronology, 2021 The same unetched and chemically etched apatite crystals from five rock samples were dated by the U–Pb method via laser ablation inductively coupled plasma mass spectrometry (LA–ICP-MS).
F. Abdullin +3 more
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Direct Calibration Method for LA-HR-ICP-MS Apatite U-Pb Dating
Yankuang ceshi, 2022 BACKGROUND Apatite is a common U-bearing accessory mineral with a U-Pb closure temperature of ~500℃, making U-Pb dating of apatite a potentially valuable thermochronometer.
ZHAO Linghao +5 more
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Apatite U-Pb Thermochronology: A Review [PDF]
Minerals, 2021 The temperature sensitivity of the U-Pb apatite system (350–570 °C) makes it a powerful tool to study thermal histories in the deeper crust. Recent studies have exploited diffusive Pb loss from apatite crystals to generate t-T paths between ~350–570 °C, by comparing apatite U-Pb ID-TIMS (isotope dilution-thermal ionisation mass spectrometry) dates with
David M. Chew, Richard A. Spikings
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Dinamika nakupljanja olova u listu i dijelovima ploda bajama
Poljoprivreda, 2023 Plodovi bajama (jezgra) smatraju se diljem svijeta zdravom hranom jer osim svoje visoke nutritivne vrijednosti u povećanim koncentracijama sadrže i esencijalne bio-molekule, koje pozitivno djeluju na ljudski metabolizam i istodobno preveniraju najvažnije
Anđelko Vrsaljko
doaj +1 more source