Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Shane M. Rooyakkers"'
Autor:
Shane M. Rooyakkers, Kevin Faure, Isabelle Chambefort, Simon J. Barker, Hannah C. Elms, Colin J. N. Wilson, Bruce L. A. Charlier
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 1, Pp n/a-n/a (2023)
Abstract Oxygen isotopes are useful for tracing interactions between magmas, crustal rocks and surface‐derived waters. We use them here to consider links between voluminous silicic magmatism and large‐scale hydrothermal circulation in New Zealand
Externí odkaz:
https://doaj.org/article/a6c83c829205409a8ac97e47a275c37a
Publikováno v:
Contributions to Mineralogy and Petrology. 178
Autor:
Max S. Sharpe, Simon J. Barker, Shane M. Rooyakkers, Colin J. N. Wilson, Isabelle Chambefort, Michael C. Rowe, C. Ian Schipper, Bruce L. A. Charlier
Publikováno v:
Contributions to Mineralogy and Petrology. 177
The transport and degassing pathways of volatiles through large silicic magmatic systems are central to understanding geothermal fluid compositions, ore deposit genesis, and volcanic eruption dynamics and impacts. Here, we document sulfur (S), chlori
Publikováno v:
Geosphere. 17:1-22
Although it is widely accepted that large silicic calderas are associated with voluminous synvolcanic intrusive complexes at depth, geological evidence for caldera-forming eruptions preserved in plutonic rocks has largely been elusive. Here, we docum
Publikováno v:
GSA Bulletin. 132:1881-1902
Deposits of the ca. 110 ka Halarauður eruption of Krafla caldera (reconstructed volume = 7 ± 6 km3 dense rock equivalent) include the only spatter-rich ignimbrite known in Iceland, and an exceptionally rare lava-like basaltic ignimbrite. We present
Autor:
Kim Berlo, Rachel L Hampton, John Stix, S. J. Barker, Maurizio Petrelli, Shane M. Rooyakkers, Daniele Morgavi
Publikováno v:
Journal of Petrology. 62
We present a detailed petrologic study of rhyolites from seven eruptions spanning the full (∼190 ky) history of rhyolitic volcanism at Krafla volcano, northeast Iceland. The eruptions vary widely in size and style, but all rhyolites are crystal-poo
Publikováno v:
Geology.
Unintentional encounters with silicic magma at ~2–2.5 km depth have recently occurred during drilling at three volcanoes: Kilauea (Hawaii), Menengai (Kenya), and Krafla (Iceland). Geophysical surveys had failed to warn about shallow magma before ea
Autor:
Michael C. Rowe, Colin J. N. Wilson, S. J. Barker, Richard J. Wysoczanski, Shane M. Rooyakkers, Charles C. Kenworthy, Finnigan Illsley-Kemp, John A. Gamble
Understanding the origins of the mantle melts that drive voluminous silicic volcanism is challenging because primitive magmas are generally trapped at depth. The central Taupō Volcanic Zone (TVZ; New Zealand) hosts an extraordinarily productive regi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23765c5cb9e7555697f5068b20612ed6
https://hdl.handle.net/10468/9718
https://hdl.handle.net/10468/9718
Publikováno v:
Journal of Volcanology and Geothermal Research. 414:107229
Understanding the petrogenesis of silicic magmas is critical for understanding the volcanic hazards they pose, their geothermal energy potential, and the creation of continental crust. In this study we explore the origin of rhyolitic magmas in basalt
Autor:
Lucia Mancini, Don R. Baker, Pia Pleše, Shane M. Rooyakkers, Michael D. Higgins, M. Kudrna Prašek, Gabriele Lanzafame
The mutual affinity between bubbles and oxide crystals (especially magnetite) is well established and their tendency to remain in contact once they become connected (either by nucleation of one upon the other, or by attachment) has led to models of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7247d6e4f2105e3426b271ee67cddde1
https://doi.org/10.1007/s00410-019-1556-8
https://doi.org/10.1007/s00410-019-1556-8