Results 41 to 50 of about 537 (136)

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

Geological Journal, Volume 61, Issue 3, Page 566-592, March 2026.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae, Md. Sazzadur Rahman, Gao Pin, M. Santosh, Wataru Fujisaki, Sam Uthup, Prince Mandingaisa   +6 more
wiley   +1 more source

Interação entre magmas graníticos e a origem de epissienitos potássicos estaníferos do granito Madeira, mina Pitinga, Amazonas

Geologia USP. Série Científica, 2018
O estudo petrográfico de amostras da zona de contato entre as fácies albita-granito de borda e feldspato alcalino-granito hipersolvus porfirítico, na borda oeste do plúton Madeira, identificou rochas com características texturais e composicionais ...
Régis Munhoz Krás Borges, Sulsiene Machado de Souza Gaia, Hilton Tulio Costi, Claudio Nery Lamarão, Gisele Tavares Marques   +4 more
doaj   +1 more source

Evolution of the Transantarctic Basin (Southern Gondwana): Insights From Quantitative Sandstone Petrography

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The deposition of the sandstone sedimentary succession of the Beacon Supergroup lasted more than 200 Myr (Devonian to Early Jurassic) in Victoria Land and nearby territories in the so‐called Transantarctic Basin, recording crucial events in the history of the Earth.
Luca Zurli, Marco Fioraso, Matteo Perotti, Andrea Di Giulio, Valerio Olivetti, Samuele Pezzoli, Valentina Corti, Gianluca Cornamusini   +7 more
wiley   +1 more source

Depositional Interplay Between the Ancestral Rocky Mountains and Ouachita–Marathon–Sonora Orogenies: Insights From Provenance Records in the Late Palaeozoic Marfa Basin, West Texas, USA

Basin Research, Volume 38, Issue 2, March–April 2026.
Provenance records from the late Palaeozoic Marfa Basin in West Texas reveal the transition from the Ancestral Rocky Mountains to the Ouachita–Marathon–Sonora orogenies during the early Permian in SW Laurentia. ABSTRACT The Marfa Basin in West Texas is a late Palaeozoic synorogenic depocenter associated with regional deformation linked to the Ancestral
Sandra Juárez‐Zúñiga, Daniel F. Stockli, Benjamin Johnson, Timothy F. Lawton   +3 more
wiley   +1 more source

Novos dados geológicos e isotópicos para o Domínio Iriri-Xingu, Província Amazônia Central: implicações para a idade do Grupo Iriri

Geologia USP. Série Científica, 2016
O Domínio Iriri-Xingu, sul da Província Amazônia Central, é uma das regiões geologicamente menos conhecidas do Cráton Amazônico. Nela predominam rochas vulcânicas e granitóides paleoproterozoicos e o embasamento regional raramente aflora.
Flávio Robson Dias Semblano, Nayan Cezar S. Pereira, Marcelo Lacerda Vasquez, Moacir José Buenano Macambira   +3 more
doaj   +1 more source

Synthesis of the Laboratory Frictional Properties of a Major Shallow Subduction Zone: The Nankai Trough, Offshore SW Japan

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract The Nankai Trough has a long history of ≥Mw 8 earthquakes and associated tsunamis. It has been the focus of decades of research, including drilling, providing the opportunity to measure the laboratory frictional properties of shallow accretionary prism samples. We collate all available friction data from the Nankai Trough and correlate it with
D. R. Faulkner, J. Zhang, H. Okuda, J. D. Bedford, M. J. Ikari, A. M. Schleicher, T. Hirose   +6 more
wiley   +1 more source

Two Cycles of Devonian–Triassic Extension and Compression in the Altai Accretionary Wedge: Insights From Tsogt Core Complex

Tectonics, Volume 44, Issue 12, December 2025.
Abstract The Altai Accretionary Wedge in the Mongolian Altai records a polyphase geodynamic evolution involving two extensional–compressional tectonic cycles, constrained by petrostructural analysis and zircon, monazite U–Pb, and Ar–Ar geochronology. The studied section includes a southwestern high‐grade and a northeastern low‐grade domain, previously ...
O. Lexa, P. Jeřábek, K. Schulmann, M. Racek, Y. Jiang, A. R. C. Kylander‐Clark, J. Míková, R. Spikings   +7 more
wiley   +1 more source

Vigor and viability of wheat seeds treated with zinc [PDF]

Biotemas, 2012
Zinc has been used in the formulation of products named phytostimulants, acting on cell elongation and lateral root formation. Thus, this paper aimed to evaluate the effect of doses of zinc applied in seed treatment on germination and vigor of wheat ...
Silvana Ohse, Jonathan Gomes Cubis, Bráulio Luciano Alves Rezende, Marluce Gonçalves Cortez, Rosana Fernandez Otto   +4 more
doaj  

Composição Química da Turmalina de Turmalinitos Estratiformes da Mina de Passagem de Mariana, Sudeste do Quadrilátero Ferrífero (MG)

Geologia USP. Série Científica, 2009
A mina subterrânea de Passagem de Mariana é uma das minas de ouro mais antigas do Brasil. O ouro associa-se a turmalinitos estratiformes e veios e brechas de quartzo e carbonato com turmalina.
Gianna Maria Garda, Johann Hans Daniel Schorscher, Paulo Beljavskis, Marcos de Souza Mansueto, Margareth Sugano Navarro, Andrezza Alves Mota   +5 more
doaj   +1 more source

Tectonics, geology and origins of Te Riu‐a‐Māui / Zealandia

New Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 531-567, December 2025.
ABSTRACT Te Riu‐a‐Māui / Zealandia is a 95% submerged, five million square km southern hemisphere continent that includes the islands of New Zealand and New Caledonia. For the last 45 million years (Ma) Zealandia has been cut by the Pacific‐Australian plate boundary which today changes character from a west‐dipping subduction zone in the north to ...
Nick Mortimer
wiley   +1 more source