The Columbia supercontinent: Retrospective, status, and a statistical assessment of paleomagnetic poles used in reconstructions

JG Meert, M Santosh - Gondwana Research, 2022 - Elsevier
The proposal that a Paleo-Mesoproterozoic supercontinent, Columbia, preceded the
existence of Rodinia was forwarded in 2002. A similar proposal that same year provided a …

[HTML][HTML] Paleoproterozoic tectonics of Fennoscandia and the birth of Baltica

R Lahtinen, J Köykkä, J Salminen, M Sayab… - Earth-Science …, 2023 - Elsevier
Baltica, in the core of the supercontinent Nuna, comprises Fennoscandia, Sarmatia and
Volgo-Uralia. We develop a tectonic model of Paleoproterozoic Fennoscandia based on …

Revised stratigraphic framework for the lower Anti-Atlas supergroup based on U–Pb geochronology of magmatic and detrital zircons (Zenaga and Bou Azzer-El …

AA Lahna, N Youbi, CCG Tassinari, MAS Basei… - Journal of African Earth …, 2020 - Elsevier
U–Pb geochronology of magmatic and detrital zircons (Zenaga and Bou Azzer-El Graara
inliers, Anti-Atlas Belt, Morocco) and a reassessment of the published constraints suggest a …

Mid-Proterozoic geomagnetic field was more consistent with a dipole than a quadrupole

Z Gong, DAD Evans, Z Zhang, C Yan - Geology, 2023 - pubs.geoscienceworld.org
The current morphology of Earth's time-averaged magnetic field can be approximated to a
geocentric axial dipole (GAD), but whether such an approximation remains valid in deep …

Paleomagnetism of 1.79 Ga pará de Minas mafic dykes: testing a São Francisco/Congo-north China-Rio de la Plata connection in Columbia

MS D'Agrella-Filho, W Teixeira, RIF da Trindade… - Precambrian …, 2020 - Elsevier
Paleogeographic connections between São Francisco/Congo, North China and Rio de la
Plata Cratons through the Paleoproterozoic have been proposed on the basis of geological …

[HTML][HTML] Ultra-slow cratonic denudation in Finland since 1.5 Ga indicated by tiered unconformities and impact structures

AM Hall, N Putkinen, S Hietala, E Lindsberg… - Precambrian …, 2021 - Elsevier
The Earth's cratons are traditionally regarded as tectonically stable cores that were
episodically buried by thin sedimentary covers. Cratonic crust in southern Finland holds …

Large igneous provinces of the Amazonian Craton and their metallogenic potential in Proterozoic times

NJ Reis, W Teixeira, MS D'Agrella-Filho, JS Bettencourt… - 2022 - pubs.geoscienceworld.org
This paper overviews the Proterozoic large igneous provinces (LIPs) of the Amazonian
Craton, characterized by large volumes of extrusive and intrusive magmatic rocks. We …

New palaeoproterozoic palaeomagnetic data from Central and Northern Finland indicate a long-lived stable position for Fennoscandia

T Luoto, J Salminen, S Mertanen… - Geophysical Journal …, 2023 - academic.oup.com
The Svecofennian gabbro intrusions coincide temporally with the global 2100–1800 Ma
orogens related to the amalgamation of the Mesoproterozoic supercontinent Nuna. We …

Evidence of the latest Paleoproterozoic (~ 1615 Ma) mafic magmatism the southern Siberia: extensional environments in Nuna supercontinent

DP Gladkochub, TV Donskaya, SA Pisarevsky… - Precambrian …, 2021 - Elsevier
The paper presents a new geological, geochronological, geochemical and Nd isotopic data
on the latest Paleoproterozoic dolerite sills, exposed in the Biryusa inlier of the southern …

[HTML][HTML] Paleomagnetic studies of rapakivi complexes in the Fennoscandian shield–Implications to the origin of Proterozoic massif-type anorthosite magmatism

J Salminen, SÅ Elming, S Mertanen, C Wang… - Precambrian …, 2021 - Elsevier
Paleomagnetic studies have been performed on five rapakivi related complexes in Sweden
and Finland. Poles of varying quality have been defined and the majority of the∼ 1640 …