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Matthew S. Huber and Elizaveta Kovaleva
The Vredefort impact structure is among the oldest and largest impact structures preserved on Earth. An understanding of its key features can serve as a guide for learning about the development of basin-sized impact structures on Earth and other planetar...
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Aikaterini Rogkala, Petros Petrounias, Basilios Tsikouras and Konstantin Hatzipanagiotou
The Veria-Naousa ophiolite represents a dismembered unit in north Greece, which includes variably serpentinised lherzolite and harzburgite, locally intruded by a sparse network of dykes or thin layers of websterite and olivine-orthopyroxenite composition...
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Kiara L. Alessio, Martin Hand, Laura J. Morrissey, David E. Kelsey and Justin L. Payne
Phase equilibria modelling incorporating melt reintegration offers a methodology to create hypothetical rock compositions that may have existed prior to melt loss, allowing the potential prograde evolution of rocks to be explored. However, melt reintegra...
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Paolo Dabove, Chiara Colombero and Andrea Salerno Quaroni
Analyses of climate change, due to its impact not only on the weather and the environment but also on human health and life, are one of the most important study activities made in recent years. There is relatively high confidence that glacial melt and he...
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Pavel Mikhailik, Irina Vishnevskaya, Liang Yi, Natalia Soloshenko and Vadim Pellinen
A study of the isotopic compositions of neodymium and strontium in four mineral fractions of the hydrogenous ferromanganese crusts of the northernmost Pacific has been carried out for the first time. The relationship of the 87Sr/86Sr ratio and eNd value ...
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Natalia Villalba,Hugo Murcia,Edith Jerez,Daniel Piedrahita,Dayana Schonwalder-Ángel,Andrés Pardo-Trujillo,Sebastián Echeverri
Pág. 181 - 200
The Combia Volcanic Province (~11-5 Ma), is a volcaniclastic sequence located in northwest Colombia between the Central and Western cordilleras at 5-6° N latitude. Its source is associated with the volcanic activity of the magmatic arc produced by the su...
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Wenxi Chen, Xifang Liu, Yuanyi Zhao and Yongjie Lin
The Qinghai?Tibet Plateau (QTP) hosts significant lacustrine sedimentary boron-rich deposits, with the Xiongba Basin being a prominent region housing two large sedimentary boron-rich deposits. These deposits are closely associated with extensive Neogene ...
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Lukas U. Arenson, Jordan S. Harrington, Cassandra E. M. Koenig and Pablo A. Wainstein
Climate change is expected to reduce water security in arid mountain regions around the world. Vulnerable water supplies in semi-arid zones, such as the Dry Andes, are projected to be further stressed through changes in air temperature, precipitation pat...
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Gustavo W. Bertotto, Maurizio Mazzucchelli, Tommaso Giovanardi, Rommulo V. Conceiçao, Alberto Zanetti, Manuel E. Schilling, Mauro I. Bernardi, Alexis D. Ponce, Tiago Jalowitzki, Fernanda Gervasoni and Anna Cipriani
Huanul is a shield volcano with several lava flows hosting mantle xenoliths erupted during the Pleistocene (0.84 ± 0.05 Ma). It is located in the southern part of the Payenia Volcanic Province, which is among the largest Neogene-Quaternary volcanic provi...
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Martin D. Clark, Elizaveta Kovaleva, Matthew S. Huber, Francois Fourie and Chris Harris
Better characterization features borne from long-term crustal modification processes is essential for understanding the dynamics of large basin-forming impact structures on Earth. Within the deeply eroded 2.02 Ga Vredefort Impact Structure in South Afric...
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Alessandra Correale, Vittorio Scribano and Antonio Paonita
Ultramafic magmas (MgO = 18 wt%) are generally thought to be primary mantle melts formed at temperatures in excess of 1600 °C. Volatile contents are expected to be low, and accordingly, high-Mg magmas generally do not yield large explosive eruptions. How...
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Fernando Sardi, Adriana Heimann, Pablo Grosse
Pág. 86 - 104
The specialized leuco-monzogranite of the La Chinchilla Stock is a small Carboniferous stock located
in the center of the Velasco Range, Pampean Province, La Rioja, Argentina. It is highly evolved and locally F- and
Be-bearing, and has the potential for ...
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