Zobrazeno 1 - 10
of 165
pro vyhledávání: '"R. L. Nichols"'
Autor:
P. Doll, S. R. Eaves, B. M. Kennedy, P.-H. Blard, A. R. L. Nichols, G. S. Leonard, D. B. Townsend, J. W. Cole, C. E. Conway, S. Baldwin, G. Fénisse, L. Zimmermann, B. Tibari
Publikováno v:
Geochronology, Vol 6, Pp 365-395 (2024)
Accurate volcanic hazard assessments rely on a detailed understanding of the timing of past eruptions. While radiometric methods like 40Ar/39Ar or K/Ar are by far the most conventional lava flow dating tools, their low resolution for young ( ka) depo
Externí odkaz:
https://doaj.org/article/c07b2249c3764b9ab04190e6ca799626
Autor:
Pedro Doll, Gillian M. Turner, Ben M. Kennedy, Alexander R. L. Nichols, Annika Greve, Jim W. Cole, Shaun R. Eaves, Dougal B. Townsend, Graham S. Leonard, Chris E. Conway
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 9, Pp n/a-n/a (2024)
Abstract Dating young lava flows is essential for understanding volcano's eruption frequency, yet challenging due to methodological limitations of commonly used dating techniques. Ruapehu (Aotearoa New Zealand) produced many lava flows during the Hol
Externí odkaz:
https://doaj.org/article/e3dc73973d8c4fccbb70aa49c87ad9d9
Autor:
C. Massiot, L. Adam, E. S. Boyd, S. C. Cary, D. R. Colman, A. Cox, E. Hughes, G. Kilgour, M. Lelli, D. Liotta, K. G. Lloyd, T. Marr, D. D. McNamara, S. D. Milicich, C. A. Miller, S. Misra, A. R. L. Nichols, S. Pierdominici, S. M. Rooyakkers, D. R. Schmitt, A. Stefansson, J. Stix, M. B. Stott, C. Thomas, P. Villamor, P. Wang, S. J. Zarrouk
Publikováno v:
Scientific Drilling, Vol 33, Pp 67-88 (2024)
Silicic caldera volcanoes present major volcanic and seismic hazards but also host dynamic hydrothermal and groundwater systems and a rich but largely unexplored subsurface biosphere. Many of these volcanoes are hosted in rift settings. The intricate
Externí odkaz:
https://doaj.org/article/226dae8d2c7a49c8976813e34099698b
Autor:
Gilles Seropian, Ben M. Kennedy, Jackie E. Kendrick, Yan Lavallée, Alexander R. L. Nichols, Felix W. von Aulock, Donald B. Dingwell, Kai-Uwe Hess, Anthony Lamur, Jenny Schauroth, Jérémie Vasseur, Fabian B. Wadsworth
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Magma ascending in the Earth’s crust can undergo oscillations in pressure, from ultra-low frequency changes associated with tectonics, to relatively higher frequency oscillations associated with seismicity. Seismic waves travelling through shallow
Externí odkaz:
https://doaj.org/article/3fa73c5b0092488ebf9fa9f83d6b7ad4
Autor:
Shengping Qian, Esteban Gazel, Alexander R. L. Nichols, Hao Cheng, Le Zhang, Vincent J. Salters, Jie Li, Xiaoping Xia, Huaiyang Zhou
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 8, Pp n/a-n/a (2021)
Abstract Basaltic lavas sample recycled crustal materials from their mantle source. Constraining the location and residence time of these recycled materials in the mantle is critical to understand global mantle dynamics. In this study, we present new
Externí odkaz:
https://doaj.org/article/7c11454cf455413fa1ed2651a5581643
Autor:
Hannah C. Elms, Madison L. Myers, Alexander R. L. Nichols, Paul J. Wallace, Colin J. N. Wilson, Simon J. Barker, Bruce L. A. Charlier
Publikováno v:
Bulletin of Volcanology. 85
Volatile measurements in mineral-hosted sealed melt inclusions, and open-ended embayments, have previously been used to study magma ascent dynamics in large rhyolitic eruptions. However, despite occurring more frequently, smaller-volume explosive eve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e19ab59e8fc2d7401ae87db76f4e9e42
https://doi.org/10.1007/s00445-023-01630-7
https://doi.org/10.1007/s00445-023-01630-7
Autor:
D. B. Dingwell, Y. Lavallée, K.-U. Hess, A. Flaws, J. Marti, A. R. L. Nichols, H. A. Gilg, B. Schillinger
Publikováno v:
Solid Earth, Vol 7, Iss 5, Pp 1383-1393 (2016)
Understanding the physicochemical conditions extant and mechanisms operative during explosive volcanism is essential for reliable forecasting and mitigation of volcanic events. Rhyolitic pumices reflect highly vesiculated magma whose bubbles can serv
Externí odkaz:
https://doaj.org/article/e1b64a9d97dc4c19b70815826c01cb94
A Petrologic Insight into Transitioning Eruption Styles from the Devil’s Rock Region, Ambae, Vanuatu
Autor:
Nathan Collins, Michael C Rowe, Geoff Kilgour, Alexander R L Nichols, C Ian Schipper, Dan Tari, Esline Garaebiti
Publikováno v:
Journal of Petrology. 63
Ambae Island is the largest volcano in the New Hebrides Arc with recent eruptive activity occurring primarily at the summit and along the island’s rift zone. The Devil’s Rock area forms a prominent outcrop on the SW coast. Eruptive deposits here
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b520e7df75c90ece327742f04b736e2
https://doi.org/10.1093/petrology/egac050
https://doi.org/10.1093/petrology/egac050
Publikováno v:
Crustal Magmatic System Evolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96b79d5651ad045df2ae1eba4963c42f
https://doi.org/10.1002/9781119564485.ch4
https://doi.org/10.1002/9781119564485.ch4
Autor:
Yoshihiko Tamura, Mathieu Rospabé, Gou Fujie, Akane Ohira, Kentaro Kaneda, Alexander R. L. Nichols, Georges Ceuleneer, Tomoki Sato, Shuichi Kodaira, Seiichi Miura, Eiichi Takazawa
Publikováno v:
Island Arc
Island Arc, 2022, 31 (1), ⟨10.1111/iar.12460⟩
Island Arc (1038-4871) (Wiley), 2022-01, Vol. 31, N. 1, P. e12460 (17p.)
Island Arc, 2022, 31 (1), ⟨10.1111/iar.12460⟩
Island Arc (1038-4871) (Wiley), 2022-01, Vol. 31, N. 1, P. e12460 (17p.)
It is common knowledge that the Moho is the boundary between the crust and the Earth's mantle. Here we show along several seismic profiles through the Pacific Plate that a correlation exists between the strength of Moho reflections, crustal thickness
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc9f549294d8b52c204056383b5c7be9
https://hal.science/hal-03807990/document
https://hal.science/hal-03807990/document
