Zobrazeno 1 - 10 of 51 pro vyhledávání: '"Christy B. Till"'
1
Akademický článek
Start me up: The relationship between volcanic eruption characteristics and eruption initiation mechanisms
Autor: Adam J. R. Kent, Christy B. Till, Kari M. Cooper
Publikováno v: Volcanica, Vol 6, Iss 2, Pp 161-172 (2023)
Understanding the processes that initiate volcanic eruptions after periods of quiescence are of paramount importance to interpreting volcano monitoring signals and mitigating volcanic hazards. However, studies of eruption initiation mechanisms are ra
Externí odkaz: https://doaj.org/article/556221e8cba74c7ea8ea8b333d705e0f
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2
Akademický článek
Geophysical and Geochemical Constraints on Magma Storage Depths Along the Cascade Arc: Knowns and Unknowns
Autor: Penny E. Wieser, Adam J. R. Kent, Christy B. Till, Geoff A. Abers
Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 24, Iss 11, Pp n/a-n/a (2023)
Abstract The iconic volcanoes of the Cascade arc stretch from Lassen Volcanic Center in northern California, through Oregon and Washington, to the Garibaldi Volcanic Belt in British Columbia. Recent studies have reviewed differences in the distributi
Externí odkaz: https://doaj.org/article/0894d99daedd4cd0ba15b05f28191aa7
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3
Akademický článek
DensityX: A program for calculating the densities of magmatic liquids up to 1,627 °C and 30 kbar
Autor: Kayla Iacovino, Christy B Till
Publikováno v: Volcanica, Vol 2, Iss 1, Pp 1-10 (2019)
Here we present a standalone program, DensityX, to calculate the densities of hydrous silicate melts (1,000s of samples in a single model run) given pressures, temperatures, and major oxide compositions in wt% in the 10-component system SiO2-TiO2-Al2
Externí odkaz: https://doaj.org/article/7c218aa9ae7245268d71e9c41dabd2d5
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4
Barometers Behaving Badly I: Assessing the Influence of Analytical and Experimental Uncertainty on Clinopyroxene Thermobarometry Calculations at Crustal Conditions
Autor: Penny E Wieser, Adam J R Kent, Christy B Till, John Donovan, David A Neave, Dawnika L Blatter, Michael J Krawczynski
Publikováno v: Journal of Petrology. 64
The composition of clinopyroxene and clinopyroxene-liquid (Cpx-Liq) pairs are frequently used to calculate crystallization/equilibration pressures in igneous systems. While canonical uncertainties are often assigned to calculated pressures based on f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0cb5a55fb55d599e036733f38bbcaa01
https://doi.org/10.1093/petrology/egac126
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6
Multi-mode magnesium diffusion in sanidine: Applications for geospeedometry in magmatic systems
Autor: Richard L. Hervig, Christy B. Till, Hannah I. Shamloo
Publikováno v: Geochimica et Cosmochimica Acta. 298:55-69
The duration of magmatic processes can occur over a wide range of time from as long as millennia to as short as hours. It is therefore important to have a variety of geospeedometers that are sensitive to different timescales. The diffusivity of Mg in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47dea8b2d263715171b6339b55b24df3
https://doi.org/10.1016/j.gca.2021.01.044
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7
Reflections on solid Earth research
Autor: Laura J. Sonter, Maria Seton, Christy B. Till, Shuichi Kodaira, Helen M. Williams
Publikováno v: Nature Reviews Earth & Environment. 2:21-25
To celebrate the first anniversary of Nature Reviews Earth & Environment, we asked five researchers investigating solid Earth processes to outline notable developments within their discipline and provide thoughts on important work yet to be done.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f54e534595545c81a0dede560dd0e15
https://doi.org/10.1038/s43017-020-00127-7
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9
A low-aluminum clinopyroxene-liquid geothermometer for high-silica magmatic systems
Autor: Christy B. Till, Karalee K. Brugman
Publikováno v: American Mineralogist. 104:996-1004
Several geothermobarometric tools have focused on clinopyroxene due to its prevalence in igneous rocks, however clinopyroxene produced in high-silica igneous systems is high in iron and low in aluminum, causing existing geothermometers that depend on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5dca9888906f7912f6bd06ceda5aba3b
https://doi.org/10.2138/am-2019-6842
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10
Extreme enriched and heterogeneous 87Sr/86Sr ratios recorded in magmatic plagioclase from the Samoan hotspot
Autor: Jason Harvey, Bradley R. Hacker, Christy B. Till, Graham Hagen-Peter, Frank J. Spera, John M. Cottle, Gareth G.E. Seward, M. A. Edwards, Jenna V. Adams, Andrew R.C. Kylander-Clark, Matthew G. Jackson
Publikováno v: Edwards, M A, Jackson, M G, Kylander-Clark, A R C, Harvey, J, Hagen-Peter, G A, Seward, G G E, Till, C B, Adams, J V, Cottle, J M, Hacker, B R & Spera, F J 2019, ' Extreme enriched and heterogeneous 87 Sr/ 86 Sr ratios recorded in magmatic plagioclase from the Samoan hotspot ', Earth and Planetary Science Letters, vol. 511, pp. 190-201 . https://doi.org/10.1016/j.epsl.2019.01.040
We report the major-element, trace-element, and 87 Sr/ 86 Sr compositions of six plagioclase crystals from two Samoan lavas with extreme EM2 isotopic compositions (ALIA-115-18 with whole-rock 87 Sr/ 86 Sr of 0.718592, and ALIA-115-21 with whole-rock
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9318c742e94007e1ef7038615e2f9625
https://doi.org/10.1016/j.epsl.2019.01.040
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