Results 71 to 80 of about 16,157 (210)
Terra Nova, Volume 38, Issue 2, Page 97-105, April 2026.ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito +4 more
wiley +1 more source
, 2007 http://www.episodes.org/backissues/302/abstract2.htmInternational audienceThe Trans-North China Belt (TNCB) is a Paleoproterozoic collisional orogen (ca. 1.9-1.8 Ga) responsible for the amalgamation of the North China Craton.
Bruguier, Olivier +4 more
core +4 more sources
U–Pb and Sm–Nd geochronology of amphibolites from the Curaçá Belt, São Francisco Craton, Brazil : tectonic implications [PDF]
, 2007 The Curaçá terrane is part of the Itabuna–Salvador–Curaçá (I–S–C) Paleoproterozoic orogen in the São Francisco craton, northeastern Brazil, and comprises supracrustal rocks, gneisses of their probable basement, amphibolites, and mafic-ultramafic Cu ...
Dantas, Elton Luiz +4 more
core +1 more source
Brazilian Journal of Geology, 2019 The Buritirama Formation (BF) occurs at the extreme north of the Carajás Province, close to the contact with the Bacajá domain, in the southeastern portion of the Amazon Craton (Brazil). The BF consists of a 40 km long, ca.
Silas Santos Salgado +3 more
doaj +1 more source
, 2019 The field workshop on the Paleoproterozoic record of the São Francisco craton (SFC) has been designed to provide a view on the aspects of the Paleoproterozoic geology.
Teixeira, Wilson +2 more
openaire +1 more source
Differential Craton Destruction Controlled by Fossil Structures in the Central North China Craton
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Craton evolution plays a fundamental role in stabilizing the continental lithosphere and the long‐term evolution of Earth's surface environment. The Shanxi Rift Zone (SRZ) within the North China Craton marks an ongoing craton destruction. Detailed lithospheric structure is essential to explain craton destruction.
Cong Ji +4 more
wiley +1 more source
Dating the cyanobacterial ancestor of the chloroplast [PDF]
, 2009 Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Amanda Castillo +2 more
core +1 more source
Tectonic evolution of the Dom Feliciano Belt in Southern Brazil : geological relationships and U-Pb geochronology [PDF]
, 2016 O Cinturão Dom Feliciano, que se estende desde o leste do Uruguai até o sul do Brasil, representa um importante orógeno Neoproterozoico formado pela colagem de domínios oceânicos e fragmentos continentais entre os crátons Rio de La Plata, Congo e ...
Chemale Jr, Farid +2 more
core +2 more sources
Engineering Reports, Volume 8, Issue 3, March 2026.The Bilaspur region lies in a highly seismic zone, requiring special attention for infrastructure development like tunnel construction. Rock strength in the area is low, posing challenges for stable tunnel design. RMR values range from 21 to 30, categorizing the rock mass as Poor, requiring robust support measures.
Baalamurugan Arumugam +4 more
wiley +1 more source
Sedimentary provenance of siliciclastic rocks from the Lalla Mouchaa Calcschists Formation (Coastal Block, Western Rehamna): Evidence of denudation of ca. 2 Ga basement in the Moroccan Meseta. [PDF]
, 2018 Paleoproterozoic basement rocks (ca. 2Ga) are scarce along the European and North African Paleozoic mountain chains (Fig.1a). In Morocco, ca. 2.2-2Ga granitic rocks (Gasquet et al., 2008; Kouyaté et al., 2013) have been exclusively reported in the ...
El Attari, A. +8 more
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