Results 31 to 40 of about 908 (109)

Early Cretaceous high-Ti and low-Ti mafic magmatism in Southeastern Tibet: Insights into magmatic evolution of the Comei Large Igneous Province [PDF]

, 2018
The Dala diabase intrusion, at the southeastern margin of the Yardoi gneiss dome, is located within the outcrop area of the ~ 132 Ma Comei Large Igneous Province (LIP), the result of initial activity of the Kerguelen plume.
Antoshechkina, Paula M., Asimow, Paul D., Gao, Li-E, Guo, Chunli, Hou, Kejun, Ma, Chi, Tang, Suohan, Wang, Yaying, Zeng, Lingsen   +8 more
core  

A review of Pangaea dispersal and Large Igneous Provinces – In search of a causative mechanism [PDF]

, 2019
The breakup of Pangaea was accompanied by extensive, episodic, magmatic activity. Several Large Igneous Provinces (LIPs) formed, such as the Central Atlantic Magmatic Province (CAMP) and the North Atlantic Igneous Province (NAIP).
Doré, A. G., Foulger, G. R., Franke, D., McHone, G., Peace, A. L., Phethean, J. J. J., Rocchi, S., Schiffer, C., Schnabel, M., Welford, J. K.   +9 more
core   +3 more sources

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, Volume 73, Issue 3, Page 802-837, April 2026.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

A geomagnetic polarity timescale for the Permian, calibrated to stage boundaries [PDF]

, 2016
The reverse polarity Kiaman Superchron has strong evidence for at least three, or prob ably four, normal magnetochrons during the early Permian. Normal magnetochrons are during the early Asselian (base CI1r.1n at 297.94+0.33 Ma), late Artinskian (CI2n at
Balabanov, Yuri P., Hounslow, Mark William   +1 more
core   +1 more source

Evolution of the Source Mineralogy and Lithospheric Controls on Magmatism During the Northeast Atlantic Continental Breakup

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract The mid‐Norwegian Margin, part of the North Atlantic Igneous Province (NAIP), is a well‐studied volcanic rifted margin formed during the breakup between Greenland and Eurasia ∼56 Ma, with the largest accumulation of magmatic material hosted by the Vøring Margin section.
Emily H. Cunningham, Sarah Lambart, Pengyuan Guo, Sayantani Chatterjee, Christian Tegner, Autumn Hartley, Ashley M. Morris, Sverre Planke, Christian Berndt, Carlos A. Alvarez Zarikian, Peter Betlem, Henk Brinkhuis, Marialena Christopoulou, Eric C. Ferré, Irina Y. Filina, Joost Frieling, Dustin T. Harper, Morgan T. Jones, Jack Longman, John M. Millett, Geoffroy T. F. Mohn, Reed P. Scherer, Natalia Varela, Weimu Xu, Stacy L. Yager   +24 more
wiley   +1 more source

Numerical Modeling of Purely Active (Plume‐Produced) Continental Rifting and Break‐Up

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract In contrast to the traditional mechanism of passive continental rifting (driven by far‐field tectonic forces), the active rifting‐to‐break‐up processes (caused by rising mantle plumes) are still poorly understood. However, most episodes of fragmentation of the last supercontinent Pangea were relatively shortly preceded (within ∼10 Myr) by the ...
Alexander Koptev, Alessio Lavecchia, Sierd Cloetingh, Michaël Pons, Enrico Marzotto, Sascha Brune, István Kovács, Magdala Tesauro, Fred Beekman, Qin Wang, Stephan V. Sobolev, Claudio Faccenna, Laurent Jolivet   +12 more
wiley   +1 more source

Review of South African research on volcanic and related rocks and mantle-derived materials : 1999-2002 [PDF]

, 2003
This report reviews South African research relating to the scientific interests of the International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI) and which was published between 1999 and 2002.
Marsh, J S
core   +1 more source

Ancient Landscapes of Uruguay [PDF]

, 2014
In this chapter, based on the available geological information, a model for the genesis and evolution of the Uruguayan landscape is proposed. A structural framework of the landscape evolution is provided and the record of such evolution in the most ...
Bettucci Sanchez, Leda, Gutierrez, Ofelia, Oyhantcabal, Pedro, Panario, Daniel, Peel, Elena, Rabassa, Jorge Oscar   +5 more
core   +1 more source

The Neoproterozoic to recent evolution of SW Gondwana - From an orogen to a passive continental margin environment induced by the "plate" and "plume mode". [PDF]

, 2020
The overarching goal of this thesis is the reconstruction of a coherent Late Neoproterozoic to recent time-temperature-evolution to connect individual geological stages (environments) of the Wilson Cycle, and consequently, follow the development from an ...
Krob, Florian
core   +1 more source

Impact Reactivation of a Hydrothermal System in Basalt in the Vargeão Dome Impact Structure, Brazil

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract As hydrous minerals have been observed in impact craters on Mars, impact‐generated hydrothermal systems (IGHSs) have been considered as potential habitats for life on that planet. The Vargeão Dome, a 12 km wide impact structure in southern Brazil, was formed in basalts with at least two hydrothermal alteration stages.
Jitse Alsemgeest, Fraukje M. Brouwer, Luis F. Auqué, Kirsten van Zuilen, Natalia Hauser, Wolf Uwe Reimold   +5 more
wiley   +1 more source