Search Results - "Archaean"

Paleomagnetic detection of relative plate motions and an infrequently reversing core dynamo at 3.5 Ga.

Authors: Brenner, Alec R. Fu, Roger R. Foley, Bradford J. et al.

Source: Science. 3/19/2026, Vol. 391 Issue 6791, p1278-1282. 5p.

Subjects: Plate tectonics, Geomagnetic reversals, Archaean, Cratons, Paleomagnetism, Greenstone belts

Geographic Terms: Barberton Greenstone Belt (South Africa & Swaziland), South Africa, Western Australia

Petrogenetic insights into the largest volcanic pulse in the Archean Abitibi greenstone belt, Canada: the Stoughton-Roquemaure assemblage.

Authors: Vite-Sánchez, Octavio Ross, Pierre-Simon Mercier-Langevin, Patrick et al.

Source: Canadian Journal of Earth Sciences. 2025, Vol. 62 Issue 10, p1515-1536. 22p.

Structural evolution and U-Pb geochronology of the metasedimentary Nemiscau subprovince, Canada: implications for Archean tectonics in the Superior Province.

Authors: Pedreira Pérez, Rocío Tremblay, Alain Daoudene, Yannick et al.

Source: Canadian Journal of Earth Sciences. 2023, Vol. 60 Issue 7, p865-896. 32p.

Linking Archaean climate change with gold metallogeny.

Authors: Frimmel, Hartwig E. hartwig.frimmel@uni-wuerzburg.de

Source: Canadian Journal of Earth Sciences. 2023, Vol. 60 Issue 7, p802-817. 16p.

New constraints on location and timing of the Great Lakes tectonic zone, central Upper Peninsula, Michigan, USA.

Authors: Drenth, Benjamin J. Souders, A. Kate Cannon, William F. et al.

Source: Canadian Journal of Earth Sciences. 2025, Vol. 62 Issue 9, p1459-1473. 15p.

Structure and Evolution of the Davis and Obruchev Archaean Terranes Based on the First Comprehensive Isotopic-Geochronological Studies of the Denman Glacier Region (East Antarctica).

Authors: Maslov, V. A. Kaminsky, V. D. Vodovozov, V. Yu. et al.

Source: Doklady Earth Sciences. Jul2026, Vol. 526 Issue 1, p1-13. 13p.

Subject Terms: *Archaean, *Neoarchaean, *Cryosphere, *Earth (Planet), *Geological time scales, *Rodinia (Supercontinent)

Geographic Terms: East Antarctica (Antarctica), Antarctica

Stratigraphy and Correlation of Basal Sections of the Lower Precambrian of the Southern Part of the Siberian Craton.

Authors: Bogdanov, Yu. B. Anisimova, S. A.

Source: Stratigraphy & Geological Correlation. Apr2025, Vol. 33 Issue 2, p143-156. 14p.

Subject Terms: *Earth sciences, *Archaean, *Precambrian, *Proterozoic Era, *Geology

Constraints on the Origin and Metal Fertility of the Archean Mooshla Intrusive Complex (MIC), Doyon–Bousquet–LaRonde Mining District, Abitibi Greenstone Belt, Québec, Canada: Accessory Mineral Composition, Thermobarometry, and Geochronology

Authors: Neyedley, Kevin Hanley, Jacob J Mercier-Langevin, Patrick et al.

Source: Journal of Petrology. Mar2026, Vol. 67 Issue 3, p1-39. 39p.

Subject Terms: *Magmatism, *Archaean, *Structural geology, *Geothermometry, *Greenstone belts, *Gold mining, *Geological time scales

Geographic Terms: Québec (Province), Canada

An Asgard archaeon from a modern analog of ancient microbial mats.

Authors: Nobs, Stephanie-Jane Johnson, Matthew D. Williams, Timothy J. et al.

Source: Current Biology. Apr2026, Vol. 36 Issue 8, p2090-21210. 19121p.

president’s column.

Authors: McCourt, Steve

Source: Geobulletin - Geological Society of South Africa. Jun2025, Vol. 68 Issue 2, p5-10. 5p.

Organic geochemical evidence for life in Archean rocks identified by pyrolysis-GC-MS and supervised machine learning.

Authors: Wong, Michael L. Prabhu, Anirudh Alexander, Conel O'D. et al.

Source: Proceedings of the National Academy of Sciences of the United States of America. 11/25/2025, Vol. 122 Issue 47, p1-12. 40p.

Subjects: Organic geochemistry, Archaean, Paleontology, Biomacromolecules, Machine learning, Pyrolysis gas chromatography, Paleoceanography, Biosignatures (Origin of life)

Timescale of evolution of a late archean collision zone from Coorg, S. India: constraints from zircon and garnet geochronology.

Authors: Basak, Sampriti Cambeses, Aitor Chakraborty, Sumit et al.

Source: Contributions to Mineralogy & Petrology. Nov2025, Vol. 180 Issue 11, p1-21. 21p.

Subjects: Archaean, Zircon, Garnet, Petrology, Gneiss, Physiographic provinces, Geological time scales, Metamorphism (Geology)

Geographic Terms: India

Mo isotope chemostratigraphy of the 2.87 Ga Red Lake Carbonate Platform and implications for incipient oxidative Mo cycling during the Archean.

Authors: Migeon, Amandine L.E. Afroz, Munira Patry, Laureline A. et al.

Source: Geochimica et Cosmochimica Acta. Oct2025, Vol. 407, p322-337. 16p.

Subjects: Archaean, Molybdenum isotopes, Chemostratigraphy, Oxidation, Geological time scales, Anoxic waters, Oxidation-reduction reaction

Archean geodynamics and plate tectonics linked to Pb isotope variability.

Authors: Armistead, Sheree E. Eglington, Bruce M. Pehrsson, Sally J. et al.

Source: Geology. Nov2025, Vol. 53 Issue 11, p961-965. 5p.

Subject Terms: *Archaean, *Geodynamics, *Lead isotopes, *Plate tectonics, *Ore deposits, *Cratons, *Geological formations, *Analytical geochemistry

Early Plates.

Authors: Grunes, Marissa (AUTHOR)

Source: Scientific American. Jun2026, Vol. 334 Issue 6, p14-15. 2p. 1 Color Photograph.

Subjects: Plate tectonics, Geomagnetic reversals, Archaean, Cratons, Remanence

Geographic Terms: South Africa, Western Australia

On the nature of the earliest known lifeforms.

Authors: Kanaparthi, Dheeraj Westall, Frances Lampe, Marko et al.

Source: eLife. 2/17/2026, Vol. 14, p1-86. 86p.

Regional and local controls on Archean rock-hosted cobalt mineralization at the McAra deposit, southern Superior Province, Ontario, Canada.

Authors: Hendrickson, Michael D.¹ mike.hendrickson.6788@gmail.com

Source: Canadian Journal of Earth Sciences. 2020, Vol. 57 Issue 12, p1447-1462. 16p.

Gneisses and Granitoids of the Basement of the Nepa-Botuoba Anteclise: Constraints for Relation of the Archean and Paleoproterozoic Crust in the Boundary Zone between the Tungus Superterrane and Magan Terrane (South Siberian Craton).

Authors: Turkina, O. M. Plyusnin, A. V. Donskaya, T. V. et al.

Source: Petrology. Aug2024, Vol. 32 Issue 4, p569-593. 25p.

Subject Terms: *Gneiss, *Archaean, *Basements, *Orogenic belts, *Neoarchaean, *Accretionary wedges (Geology)

Latest Archean continental growth in a post-collisional setting: Evidence from 2.5 Ga high-K calc-alkaline granitoids in the Rae craton, Northwest Territories, Canada.

Authors: Neil, Benjamin J. C. Chacko, Thomas Heaman, Larry M. et al.

Source: Geological Society of America Bulletin. Sep2025, Vol. 137 Issue 9/10, p4191-4214. 24p.

Subject Terms: *Archaean, *Continental crust, *Isotopic analysis, *Analytical geochemistry, *Cratons, *Rock deformation, *Igneous rocks, *Magmatism

Petrotectonics of chromite in Archean anorthosite-bearing layered intrusions: Implications for Archean tectonics.

Authors: Lu Wang Jingsong Lin Wenbin Ning et al.

Source: Geological Society of America Bulletin. Sep2025, Vol. 137 Issue 9/10, p4042-4060. 19p.

Subject Terms: *Chromite, *Archaean, *Subduction, *Plate tectonics, *Structural geology, *Anorthosite, *Petrogenesis, *Geochemistry

Geographic Terms: Greenland