Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +5 more sources
Геохімія техногенезу, 2020 Based on modern lithochemical dataset statistical processing methods, the chemical composition features of the Paleoproterozoic iron ore (iron-siliceous) formation of the Saksagan Formation of the Kryvyi Rig basin of the Ukrainian Shield have been ...
Pokalyuk V.
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CARBONATES OF ORE DEPOSITS OF PRECAMBRIAN OF THE CENTRAL PART OF THE UKRAINIAN SHIELD
Геохімія техногенезу, 2020 The article presents the results of study of the isotopic composition of oxygen and carbon of carbonates in ore deposits of the Early Pre-cambrian of the Ukrainian Shield. The following objects were studied: 1. Iron ore formations of the Kryvyi Rih ultra-
Fomin Yu. +4 more
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Open Geosciences, 2021 The evolution process of the North China Craton has been discussed by many scholars; however, the frame for the timing of the Trans-North China Block has not been fully agreed upon.
Tian Haofei +14 more
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Detrital zircon geochronology of Paleoproterozoic metasedimentary rocks from Jämsä, Central Finland [PDF]
Bulletin of the Geological Society of FinlandIn this short communication, we present new detrital single grain zircon U-Pb data for six metasedimentary rock samples from Jämsä, Central Finland.
Perttu Mikkola +2 more
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Geochronology of the felsic rocks in Orijärvi, southern Finland – implications for stratigraphy [PDF]
Estonian Journal of Earth SciencesThe Orijärvi area within the Paleoproterozoic Uusimaa belt contains volcanic and minor sedimentary formations, providing valuable insights into the oldest Svecofennian crust in southern Finland.
Elisa Toivanen +4 more
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Age and origin of the Nb-Zr-REE mineralization in the Paleoproterozoic A1-type granitoids at Otanmäki, central Finland [PDF]
Bulletin of the Geological Society of Finland, 2020 The Otanmäki area in central Finland hosts two occurrences of Nb-Zr-REE minerali-zation, Katajakangas and Kontioaho, within a suite of ca. 2.04–2.06 Ga (A1-type) gneissic granites, syenite and monzonite-monzodiorite.
Kimmo Kärenlampi +6 more
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Geology, geochronology and geochemistry of the 2.05 Ga gneissic A1-type granites and related intermediate rocks in central Finland: implication for the tectonic evolution of the Karelia craton margin [PDF]
Bulletin of the Geological Society of Finland, 2019 The 2.05 Ga Otanmäki suite represents a globally rare occurrence of Paleoproterozoic non-orogenic A1-type magmatism. It consists of a broad variety of A-type felsic and intermediate igneous rocks including monzodiorites, monzonites, syenites and peral ...
Kimmo Kärenlampi +3 more
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New U-Pb zircon data for Maarianvaara granite and Tohmajärvi volcanic complex, eastern Finland: geologic implications [PDF]
Bulletin of the Geological Society of FinlandNew U-Pb zircon ages reported for samples from the Maarianvaara granite and Tohmajärvi volcanic complex (TVC) corroborate previous estimates of their magmatic emplacement at ca. 1.85 Ga and 2.11 Ga, respectively. The ca.
Asko Kontinen +3 more
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1.88 Ga granitoids at Sorsakoski, Central Finland: A-type magmatism within the Raahe-Ladoga suture zone [PDF]
Bulletin of the Geological Society of FinlandFour quartz monzonite – granite intrusions forming the Sorsakoski granite lithodeme, are found within the Raahe-Ladoga suture zone in Central Finland. The prevailing potassium feldspar megacrystic quartz monzonites and granites form a bimodal association
Perttu Mikkola +3 more
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