Zobrazeno 1 - 10
of 500
pro vyhledávání: '"S, Calder"'
Publikováno v:
Volcanica, Vol 7, Iss 2, Pp 785-811 (2024)
Pumice cones are volcanic landforms that exist worldwide, but whose eruption has never been observed. Interpretations of these eruptions vary significantly in style, intensity, and magnitude, pertinent for volcanic hazard assessment. Aluto volcano (E
Externí odkaz:
https://doaj.org/article/6bdd0d5509d2455883087bfcf6378126
Autor:
Jan M. Lindsay, Danielle Charlton, Mary Anne Thompson Clive, Daniel Bertin, Sarah Ogburn, Heather Wright, John Ewert, Eliza S. Calder, Bastian Steinke
Publikováno v:
Journal of Applied Volcanology, Vol 12, Iss 1, Pp 1-26 (2023)
Abstract The IAVCEI Working Group on Hazard Mapping has been active since 2014 and has facilitated several activities to enable sharing of experiences of how volcanic hazard maps are developed and used around the world. One key activity was a global
Externí odkaz:
https://doaj.org/article/c8bc4dd711744727929cd8465275e242
Autor:
G. Wang, N. N. Wang, X. L. Shen, J. Hou, L. Ma, L. F. Shi, Z. A. Ren, Y. D. Gu, H. M. Ma, P. T. Yang, Z. Y. Liu, H. Z. Guo, J. P. Sun, G. M. Zhang, S. Calder, J.-Q. Yan, B. S. Wang, Y. Uwatoko, J.-G. Cheng
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011040 (2024)
We synthesized polycrystalline La_{3}Ni_{2}O_{7−δ} (δ≈0.07) samples by using the sol-gel method without postannealing under high oxygen pressure, and then measured temperature-dependent resistivity under various hydrostatic pressures up to 18 G
Externí odkaz:
https://doaj.org/article/a099d3ff41544805b15d007b9c947357
Autor:
Sarah E. Ogburn, Danielle Charlton, Diana Norgaard, Heather M. Wright, Eliza S. Calder, Jan Lindsay, John Ewert, Shinji Takarada, Yasuhisa Tajima
Publikováno v:
Journal of Applied Volcanology, Vol 12, Iss 1, Pp 1-25 (2023)
Abstract In this work we present the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) Commission on Volcanic Hazards and Risk (CVHR) Volcanic Hazard Maps Database and the accompanying volcanichazardmaps.org we
Externí odkaz:
https://doaj.org/article/f90035daf0f04223911ca4ed72ef5c7b
Autor:
D. R. Yahne, B. Placke, R. Schäfer, O. Benton, R. Moessner, M. Powell, J. W. Kolis, C. M. Pasco, A. F. May, M. D. Frontzek, E. M. Smith, B. D. Gaulin, S. Calder, K. A. Ross
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011005 (2024)
The dipolar-octupolar (DO) pyrochlores, R_{2}M_{2}O_{7} (R=Ce,Sm,Nd), are key players in the search for realizable novel quantum spin liquid (QSL) states as a large parameter space within the DO pyrochlore phase diagram is theorized to host QSL state
Externí odkaz:
https://doaj.org/article/f1e3aed75cec4cd4a8fb855458af4d58
Autor:
P. M. Sarte, K. Cruz-Kan, B. R. Ortiz, K. H. Hong, M. M. Bordelon, D. Reig-i-Plessis, M. Lee, E. S. Choi, M. B. Stone, S. Calder, D. M. Pajerowski, L. Mangin-Thro, Y. Qiu, J. P. Attfield, S. D. Wilson, C. Stock, H. D. Zhou, A. M. Hallas, J. A. M. Paddison, A. A. Aczel, C. R. Wiebe
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-9 (2021)
Abstract The magnetic ground state of the pyrochlore Yb2GaSbO7 has not been established. The persistent spin fluctuations observed by muon spin-relaxation measurements at low temperatures have not been adequately explained for this material using exi
Externí odkaz:
https://doaj.org/article/6e8a74dd135b439a90a78adb5bbd55f4
Autor:
Ben Clarke, Eliza S. Calder, Firawalin Dessalegn, Karen Fontijn, Joaquín A. Cortés, Mark Naylor, Ian Butler, William Hutchison, Gezahegn Yirgu
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Dynamics of peralkaline rhyolite eruptions remain elusive due to the lack of direct observations. Here the authors provide X-ray Computed Tomography, thermal modelling and field data of fluidal shaped pyroclasts and show that peralkaline rhyolite pum
Externí odkaz:
https://doaj.org/article/3281236b0e7b44158f3ee5275c133845
Autor:
Amelia A. Bain, Jackie E. Kendrick, Anthony Lamur, Yan Lavallée, Eliza S. Calder, Joaquín A. Cortés, Gloria Patricia Cortés, Diego Gómez Martinez, Roberto A. Torres
Publikováno v:
Frontiers in Earth Science, Vol 8 (2021)
Understanding the relationship between degassing, crystallization processes and eruption style is a central goal in volcanology, in particular how these processes modulate the magnitude and timing of cyclical Vulcanian explosions in intermediate magm
Externí odkaz:
https://doaj.org/article/8db76fdc74954f6185a541dae0f22d86
Autor:
Elaine T. Spiller, Robert L. Wolpert, Sarah E. Ogburn, Eliza S. Calder, James O. Berger, Abani K. Patra, E. Bruce Pitman
Publikováno v:
Frontiers in Earth Science, Vol 8 (2020)
Effective volcanic hazard management in regions where populations live in close proximity to persistent volcanic activity involves understanding the dynamic nature of hazards, and associated risk. Emphasis until now has been placed on identification
Externí odkaz:
https://doaj.org/article/7616200900ac45d89d129de9f50eb645
Autor:
P. Tierz, B. Clarke, E. S. Calder, F. Dessalegn, E. Lewi, G. Yirgu, K. Fontijn, J. M. Crummy, Y. Bekele, S. C. Loughlin
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 10, Pp n/a-n/a (2020)
Abstract Aluto is a peralkaline rhyolitic caldera located in a highly populated area in central Ethiopia. Its postcaldera eruptive activity has mainly consisted of self‐similar, pumice‐cone‐building eruptions of varying size and vent location.
Externí odkaz:
https://doaj.org/article/09220f2a128b4ea982574c4fbb6d27e8