Early Paleoproterozoic TTG gneisses and potassic granitoids in the southern Trans-North China Orogen: Key constraints on the tectonic setting during the tectono …
J Wang, X Long - Earth-Science Reviews, 2024 - Elsevier
Magmatic rocks in the North China Craton (NCC) are crucial to unraveling the tectonic
background during the tectono-magmatic lull (TML, 2.45–2.20 Ga) and to constraining the …
background during the tectono-magmatic lull (TML, 2.45–2.20 Ga) and to constraining the …
[HTML][HTML] Archaean continental crust formed from mafic cumulates
Large swaths of juvenile crust with tonalite-trondhjemite-granodiorite (TTG) composition
were added to the continental crust from about 3.5 billion years ago. Although TTG …
were added to the continental crust from about 3.5 billion years ago. Although TTG …
Central Tibetan adakitic rocks archive the critical impact of water on the Nb/Ta variation in deep crustal melts
Nb and Ta are geochemical twins, yet their ratio varies considerably in igneous rocks. It is
generally supposed that felsic melts coexisting with residual rutile will have elevated Nb/Ta …
generally supposed that felsic melts coexisting with residual rutile will have elevated Nb/Ta …
Review of temporal trend in Archean granitoid chemistry-implications for Eoarchean (3.7–3.9 Ga) transition in geodynamic regime of crust formation
In this study, we review changes in Archean granitoid chemistry using stacked probability
density estimation and statistical change-point analyses. A significant change in Archean …
density estimation and statistical change-point analyses. A significant change in Archean …
[HTML][HTML] 3.7 billion year old detrital sediments in Greenland are consistent with active plate tectonics in the Eoarchean
AJ Boyd, MT Rosing, MAR Harding… - … Earth & Environment, 2024 - nature.com
Plate tectonic processes modulate element cycling, crust generation, and differentiation, yet
at what point in Earth's history these processes emerged remains debated. Here we present …
at what point in Earth's history these processes emerged remains debated. Here we present …
[HTML][HTML] Convergent plate boundary environments for formation of≥ 3800 Ma mafic–ultramafic assemblages (Isua area, Greenland): Implications for early global …
AP Nutman, CRL Friend, VC Bennett - Geoscience Frontiers, 2024 - Elsevier
In the gneiss terrane on the south side of the Eoarchean Isua supracrustal belt, ultramafic
rocks with relict abyssal peridotite mineralogy (Bennett et al., 2002, Friend et al., 2002 …
rocks with relict abyssal peridotite mineralogy (Bennett et al., 2002, Friend et al., 2002 …
Temporal evolution of the early–late Neoarchean granitoid magmatism in the eastern North China Craton: Transition of geodynamic regime from mantle plume to …
H Shan, M Zhai, X Lu - Bulletin, 2024 - pubs.geoscienceworld.org
A study of tonalite–trondhjemite–granodiorite (TTG) suite and sanukitoids emplaced at
different ages in the Archean can constrain the transition of early Earth's tectonic regime …
different ages in the Archean can constrain the transition of early Earth's tectonic regime …
Evidence for a missing late veneer from 182W and 142Nd systematics in the Archean São Francisco Craton
The oldest crustal remnants on Earth are represented by greenstone belts and tonalite-
trondhjemite-granodiorite (TTG) associations that form most of Archean blocks worldwide …
trondhjemite-granodiorite (TTG) associations that form most of Archean blocks worldwide …
Prolonged arc accretion during growth of juvenile crust in the Arabian Nubian Shield: Insights from the granitoids of northern Ethiopia
M Gebreslassie, SB Zhang, L Zhang, T Liang… - Gondwana …, 2024 - Elsevier
Abstract The Arabian Nubian Shield (ANS) is one of the largest juvenile continental crusts
formed after the Archean. To determine the timing and understand the mechanism of its …
formed after the Archean. To determine the timing and understand the mechanism of its …
[HTML][HTML] Oligocene magmatism in the eastern sakarya zone, ne turkey: Geodynamic implications
During the Cenozoic, the eastern Sakarya Zone, northeastern Turkey has witnessed
voluminous Eocene and subsidiary Miocene magmatism. By contrast, except in one …
voluminous Eocene and subsidiary Miocene magmatism. By contrast, except in one …