Cellular remains in a~ 3.42-billion-year-old subseafloor hydrothermal environment

B Cavalazzi, L Lemelle, A Simionovici, SL Cady… - Science …, 2021 - science.org
Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …

Evolution of deep crustal hot zones constrained by the diversity of Late Mesozoic magmatic rocks in SE China

XL Wang, JX Liu, QT Lü, S Wang, D Wang, X Chen - Ore Geology Reviews, 2021 - Elsevier
The formation of widespread Late Mesozoic magmatic rocks (dominantly felsic rocks) in SE
China needs a physical and chemical balance between crustal and mantle melting, which …

3.51 Ga old felsic volcanic rocks and carbonaceous cherts from the Gorumahisani Greenstone Belt–Insights into the Palaeoarchaean record of the Singhbhum Craton …

J Jodder, A Hofmann, H Ueckermann - Precambrian Research, 2021 - Elsevier
Abstract In the Singhbhum Craton of India, Palaeoarchaean greenstone sequences have so
far been reported from the south of the craton. In this study, we report a precise 3510±3 Ma …

Gliding and overthrust nappe tectonics of the Barberton Greenstone Belt revisited: A review of deformation styles and processes

MJ Van Kranendonk - South African Journal of Geology 2021, 2021 - journals.co.za
Abstract Interpretations of the structural/tectonic evolution of the Barberton Greenstone Belt
(BGB) and its surrounding granitoid rocks remain controversial, with proponents for both …

The multiple ways of recycling Archaean crust: a case study from the ca. 3.1 Ga granitoids from the Barberton Greenstone Belt, South Africa

JF Moyen, A Zeh, M Cuney, A Dziggel… - Precambrian Research, 2021 - Elsevier
Archaean cratons are stable continental blocks that escaped reworking after their formation
(Windley, 1995). They include an Archaean continental crust, underlain by a refractory, rigid …

[HTML][HTML] On the petrogenesis of Paleoarchean continental crust: U-Pb-Hf isotope and major-trace element constraints from the Bastar Craton, India

A Maltese, K Mezger, D Upadhyay, J Berndt… - Chemical …, 2021 - Elsevier
Combined geochronological and (isotope) geochemical investigations of tonalite-
trondhjemite-granodiorite (TTG) suites, which dominate Archean cratons, provide constraints …

Diversity of granitic rocks constrained by disequilibrium melting and subsequent incremental emplacement and differentiation

XL Wang, D Wang, DH Du, JY Li - Lithos, 2021 - Elsevier
Compositional diversity is a fundamental feature of Earth's granitoids and it has been
prevailing on Earth since the early Archean. Although the exotic mechanisms, like magma …

Palaeoarchaean TTGs of the Pilbara and Kaapvaal cratons compared; an early Vaalbara supercraton evaluated

NJ Gardiner, JA Mulder, CL Kirkland… - South African Journal …, 2021 - journals.co.za
The continental crust that dominates Earth's oldest cratons comprises Eoarchaean to
Palaeoarchaean (4.0 to 3.2 Ga) felsic intrusive rocks of the tonalite-trondhjemite …

A LA-ICPMS zircon record of magmatic crystallization and compositional alteration in meta-igneous rocks of the eastern Kaapvaal Craton

R Bolhar, A Hofmann, CM Allen… - South African Journal of …, 2021 - journals.co.za
Archaean zircons from the Kaapvaal Craton, South Africa, were analyzed by Laser Ablation
(LA)-ICP-MS to obtain a coupled record of U-Th-Pb isotope ratios and selected trace …

A geochemical study of the Crown Formation and Bird Member lavas of the Mesoarchaean Witwatersrand Supergroup, South Africa

F Humbert, A Hofmann, M Kock, A Agangi… - South African Journal …, 2021 - journals.co.za
Abstract The ca. 2.97 to 2.80 Ga Witwatersrand Supergroup, South Africa, represents the
oldest intracontinental sedimentary basin of the Kaapvaal craton. Two volcanic units occur in …