Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2422
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Poe, B. T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Romano, C.; Dipartimento di Scienze Geologiche, Università degli Studi di Roma Tre, Roma, Italy | en |
dc.contributor.authorall | Liebske, C.; Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.authorall | Rubie, D. C.; Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.authorall | Terasaki, H.; Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.authorall | Suzuki, A.; Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.authorall | Funakoshi, K.; Spring-8/JASRI, Hyogo, Japan | en |
dc.date.accessioned | 2007-09-03T07:44:16Z | en |
dc.date.available | 2007-09-03T07:44:16Z | en |
dc.date.issued | 2006 | en |
dc.identifier.uri | http://hdl.handle.net/2122/2422 | en |
dc.description.abstract | In-situ falling-sphere viscometry using shadow radiography in a multianvil apparatus was conducted on a series of samples along the NaAlSi3O8–H2O join up to 2.8 wt.% H2O at the Spring-8 synchrotron radiation facility (Hyogo, Japan). This allowed us to determine viscosities normally too low to be measured at ambient pressure for hydrous silicate melts at high temperatures due to rapid devolatilization. Pressure was fixed at 2.5 GPa for all experiments allowing us to gauge the effect of chemical composition on viscosity. In particular, the series of samples allowed us to vary the melt's degree of polymerization while maintaining a constant Al to Si ratio. Our results show that, for all samples, viscosity decreases as a function of pressure between 1 atm and 2.5 GPa at 1550 °C, indicating that the pressure anomaly can still be observed as depolymerization of the melt increases from nominally 0 (dry albite liquid) to NBO/T=0.8 (assuming water speciation entirely as hydroxyl groups at experimental conditions). We also find that the magnitude of the decrease in viscosity over this pressure interval does not appear to be dependent on the amount of water in the melt (i.e., NBO/T). An explanation for this behavior might be that the molar volume, at least over this limited compositional range, is nearly constant and the effects of compression of these melts, though different in degree of polymerization, are similar. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Chemical Geology | en |
dc.relation.ispartofseries | /229 (2006) | en |
dc.subject | Viscosity | en |
dc.subject | Silicate melts | en |
dc.subject | High pressure | en |
dc.title | High-temperature viscosity measurements of hydrous albite liquid using in-situ falling sphere viscometry at 2.5 GPa | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 2-9 | en |
dc.identifier.URL | http://www.elsevier.com/locate/chemgeo | en |
dc.subject.INGV | 04. Solid Earth::04.01. Earth Interior::04.01.05. Rheology | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas | en |
dc.identifier.doi | 10.1016/j.chemgeo.2006.01.010 | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Poe, B. T. | en |
dc.contributor.author | Romano, C. | en |
dc.contributor.author | Liebske, C. | en |
dc.contributor.author | Rubie, D. C. | en |
dc.contributor.author | Terasaki, H. | en |
dc.contributor.author | Suzuki, A. | en |
dc.contributor.author | Funakoshi, K. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Dipartimento di Scienze Geologiche, Università degli Studi di Roma Tre, Roma, Italy | en |
dc.contributor.department | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.department | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.department | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.department | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | en |
dc.contributor.department | Spring-8/JASRI, Hyogo, Japan | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | università chieti | - |
crisitem.author.dept | Università degli Studi di Roma Tre, Dipartimento di Scienze | - |
crisitem.author.dept | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | - |
crisitem.author.dept | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | - |
crisitem.author.dept | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | - |
crisitem.author.dept | Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany | - |
crisitem.author.dept | Spring-8/JASRI, Hyogo, Japan | - |
crisitem.author.orcid | 0000-0002-0816-0258 | - |
crisitem.author.orcid | 0000-0003-1442-7729 | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
WEB OF SCIENCETM
Citations
19
checked on Feb 10, 2021
Page view(s)
145
checked on Apr 24, 2024
Download(s)
25
checked on Apr 24, 2024