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Immiscible silicate liquids at high pressure: the influence of melt structure on elemental partitioning

Abstract

Micro-PIXE analyses have been applied to study partitioning of trace elements between immiscible silicate melts stabilised at 0.5 and 1.0 GPa over a temperature range of 1160-1240 deg C in the system SiO{sub 2}-FeO-Al{sub 2}0{sub 3}-K{sub 2}0 (+P{sub 2}0{sub 5}). The system was doped with a suite of trace elements of geochemical interest: Rb, Ba, Pb, Sr, La, Ce, Sm, Ho, Y, Lu, Th, U, Zr, Hf, Nb and Ta at approximately 200 ppm level for all elements except for the REE`s, Ba and Ta (600-1200 ppm). Trace element partitioning was found to be a complex function of cation field strength (charge/radius{sup 2}). Although field strength is important in determining the nature and degree of partitioning, the authors emphasised that it is only one component of the underlying mechanism for the way in which elements distribute themselves between two silicate liquids. 8 refs., 2 figs.
Authors:
Vicenzi, E; [1]  Green, T H; [2]  Sie, S H [3] 
  1. Princeton Materials Laboratory, Princeton, NJ (United States)
  2. Macquarie Univ., North Ryde, NSW (Australia)
  3. Commonwealth Scientific and Industrial Research Organisation (CSIRO), North Ryde, NSW (Australia). Div. of Exploration Geoscience
Publication Date:
Dec 31, 1993
Product Type:
Miscellaneous
Report Number:
INIS-mf-15527; CONF-9311143-
Reference Number:
SCA: 400101; PA: AIX-28:024637; EDB-97:042208; SN: 97001752253
Resource Relation:
Conference: 8. Australian conference on nuclear techniques of analysis, Sydney (Australia), 17-19 Nov 1993; Other Information: PBD: 1993; Related Information: Is Part Of Proceedings of the 8. Australian conference on nuclear techniques of analysis; PB: 194 p.
Subject:
40 CHEMISTRY; MAGMA SYSTEMS; CRYSTALLIZATION; ELEMENT ABUNDANCE; PIXE ANALYSIS; DOPED MATERIALS; ENERGY SPECTRA; EXPERIMENTAL DATA; GEOCHEMISTRY; MICROANALYSIS; PARTITION; PETROGENESIS; PRESSURE DEPENDENCE; TEMPERATURE DEPENDENCE; TRACE AMOUNTS
OSTI ID:
445883
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE97616714; TRN: AU9715786024637
Availability:
INIS; OSTI as DE97616714
Submitting Site:
AUN
Size:
pp. 116-118
Announcement Date:
Mar 28, 1997

Citation Formats

Vicenzi, E, Green, T H, and Sie, S H. Immiscible silicate liquids at high pressure: the influence of melt structure on elemental partitioning. Australia: N. p., 1993. Web.
Vicenzi, E, Green, T H, & Sie, S H. Immiscible silicate liquids at high pressure: the influence of melt structure on elemental partitioning. Australia.
Vicenzi, E, Green, T H, and Sie, S H. 1993. "Immiscible silicate liquids at high pressure: the influence of melt structure on elemental partitioning." Australia.
@misc{etde_445883,
title = {Immiscible silicate liquids at high pressure: the influence of melt structure on elemental partitioning}
author = {Vicenzi, E, Green, T H, and Sie, S H}
abstractNote = {Micro-PIXE analyses have been applied to study partitioning of trace elements between immiscible silicate melts stabilised at 0.5 and 1.0 GPa over a temperature range of 1160-1240 deg C in the system SiO{sub 2}-FeO-Al{sub 2}0{sub 3}-K{sub 2}0 (+P{sub 2}0{sub 5}). The system was doped with a suite of trace elements of geochemical interest: Rb, Ba, Pb, Sr, La, Ce, Sm, Ho, Y, Lu, Th, U, Zr, Hf, Nb and Ta at approximately 200 ppm level for all elements except for the REE`s, Ba and Ta (600-1200 ppm). Trace element partitioning was found to be a complex function of cation field strength (charge/radius{sup 2}). Although field strength is important in determining the nature and degree of partitioning, the authors emphasised that it is only one component of the underlying mechanism for the way in which elements distribute themselves between two silicate liquids. 8 refs., 2 figs.}
place = {Australia}
year = {1993}
month = {Dec}
}